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1
Ferreira, Diogo F., Crinan Jarrett, Patrick Jules Atagana, Luke L. Powell, Hugo Rebelo, and Amy Baird. "Are bat mist nets ideal for capturing bats? From ultrathin to bird nets, a field test." Journal of Mammalogy 102, no. 6 (2021): 1627–34. https://doi.org/10.5281/zenodo.13476500.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Abstract The use of mist nets is the most widespread technique to capture bats; however, no study has compared if the type of ground-level mist net used during sampling affects bat captures. We sampled bats using three different types of mist nets that varied in mesh (16, 18, and 20 mm) and denier/ply (45/1 and 75/2) sizes over 76 half-night surveys. We used 17–20 mist nets and checked them at intervals of 15–20 min. Capture rate for echolocating bats was higher in the two mist nets with the biggest denier/ply and smaller mesh sizes. "Ultrathin bat mist nets" showed the lowest capture rates (1.5 times less than "Regular bat mist nets"), whereas "Bird mist nets" had capture rates only 1.2 times smaller than "Regular bat mist nets." Our results showed that "Bird mist nets" can sample echolocating bats almost as well as "Regular bat mist nets," and that thinner mist nets may not be the best solution to capture bats that echolocate at high frequencies in this type of surveys. We highlight the importance of considering the efficiency, durability, and longevity of mist nets when choosing the ideal mist-net type for a bat survey.
2
Ferreira, Diogo F., Crinan Jarrett, Patrick Jules Atagana, Luke L. Powell, Hugo Rebelo, and Amy Baird. "Are bat mist nets ideal for capturing bats? From ultrathin to bird nets, a field test." Journal of Mammalogy 102, no. 6 (2021): 1627–34. https://doi.org/10.5281/zenodo.13476500.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Abstract The use of mist nets is the most widespread technique to capture bats; however, no study has compared if the type of ground-level mist net used during sampling affects bat captures. We sampled bats using three different types of mist nets that varied in mesh (16, 18, and 20 mm) and denier/ply (45/1 and 75/2) sizes over 76 half-night surveys. We used 17–20 mist nets and checked them at intervals of 15–20 min. Capture rate for echolocating bats was higher in the two mist nets with the biggest denier/ply and smaller mesh sizes. "Ultrathin bat mist nets" showed the lowest capture rates (1.5 times less than "Regular bat mist nets"), whereas "Bird mist nets" had capture rates only 1.2 times smaller than "Regular bat mist nets." Our results showed that "Bird mist nets" can sample echolocating bats almost as well as "Regular bat mist nets," and that thinner mist nets may not be the best solution to capture bats that echolocate at high frequencies in this type of surveys. We highlight the importance of considering the efficiency, durability, and longevity of mist nets when choosing the ideal mist-net type for a bat survey.
3
De, Moura Guilherme Wince, Karen Mustin, Fernando Antonio Silva Pinto, et al. "Global review and guidelines to avoid opportunistic predation of birds and bats in mist nets." Ecology and Evolution 13, no. 8 (2023): e10390. https://doi.org/10.5281/zenodo.13469325.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Abstract Mist nets are one of the most widely used techniques in the study of birds and bats worldwide. However, a number of risks are involved, including opportunistic predation. Given this potential cost, here we: (1) review the global literature to understand the factors that might contribute to predation risk for birds and bats captured in mist nets; (2) review existing guidelines for best practice use of mist nets; and (3) based on our reviews, recommend new guidelines for the use of mist nets to minimize the risk of opportunistic predation. Based on keyword in English, Spanish, Portuguese, and French, and using Google Scholar, Scopus, SciElo, and Web of Science, we found 48 articles reporting opportunistic predation. In the included articles, 178 predation events, involving 52 predator and 84 prey species, were reported. In most of the reports, the mist nets were placed at ground level, the bats and birds were preyed on from the shelf closest to the ground, the mist‐net checks occurred at intervals of 1 h or 30 min and the most common predators were arboreal and scansorial species (primates and marsupials). Despite the occurrences of predation in 13 countries, guidelines for best practice mist‐net use were found in only three, despite extensive searches and contact with key people in each country. Based on the existing guidelines and our results, we recommend that mist nets be fixed with the lowest shelf at least 50 cm above ground level and be checked at 15‐min intervals; when predators are observed near mist nets, the nets either be constantly observed, closed, or relocated; suppressed the vegetation around the mist nets; captured animals be removed from the mist nets as soon as possible, and more than one researcher/technician should be in the field at all times.
4
De, Moura Guilherme Wince, Karen Mustin, Fernando Antonio Silva Pinto, et al. "Global review and guidelines to avoid opportunistic predation of birds and bats in mist nets." Ecology and Evolution 13, no. 8 (2023): e10390. https://doi.org/10.5281/zenodo.13469325.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Abstract Mist nets are one of the most widely used techniques in the study of birds and bats worldwide. However, a number of risks are involved, including opportunistic predation. Given this potential cost, here we: (1) review the global literature to understand the factors that might contribute to predation risk for birds and bats captured in mist nets; (2) review existing guidelines for best practice use of mist nets; and (3) based on our reviews, recommend new guidelines for the use of mist nets to minimize the risk of opportunistic predation. Based on keyword in English, Spanish, Portuguese, and French, and using Google Scholar, Scopus, SciElo, and Web of Science, we found 48 articles reporting opportunistic predation. In the included articles, 178 predation events, involving 52 predator and 84 prey species, were reported. In most of the reports, the mist nets were placed at ground level, the bats and birds were preyed on from the shelf closest to the ground, the mist‐net checks occurred at intervals of 1 h or 30 min and the most common predators were arboreal and scansorial species (primates and marsupials). Despite the occurrences of predation in 13 countries, guidelines for best practice mist‐net use were found in only three, despite extensive searches and contact with key people in each country. Based on the existing guidelines and our results, we recommend that mist nets be fixed with the lowest shelf at least 50 cm above ground level and be checked at 15‐min intervals; when predators are observed near mist nets, the nets either be constantly observed, closed, or relocated; suppressed the vegetation around the mist nets; captured animals be removed from the mist nets as soon as possible, and more than one researcher/technician should be in the field at all times.
5
Cardoso Cláudio, Vinícius, Gedimar Pereira Barbosa, Fabrício Braga Rassy, Vlamir José Rocha, and Ricardo Moratelli. "The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo." Zoologia 37 (September 17, 2020): 1–32. http://dx.doi.org/10.3897/zoologia.37.e36514.
Full textAbstract:
Carlos Botelho State Park (PECB) is a large remnant of Atlantic Forest in Southeastern Brazil, with more than 37,000 ha. As its bat fauna is still unknown, we performed the first bat survey on PECB, to provide data on the distribution, natural history and taxonomy of the species. Fieldwork was conducted monthly, from October 2016 to September 2017. Captures were made using ground-level mist-nets (39600 m2.h), canopy mist-nets (2017.5 m2.h) and searches for roosts (42 hours).We captured 412 bats from 34 species of Phyllostomidae, Molossidae and Vespertilionidae. A total of 11 species were captured only in ground-level mist-nets, five in canopy mist-nets, and seven in roosts. Dermanura cinerea Gervais, 1856, Eptesicus taddeii Miranda, Bernardi & Passos, 2006, Glyphonycteris sylvestris Thomas, 1896 and Lampronycteris brachyotis (Dobson, 1879) are rare on surveys conducted in the Atlantic Forest of São Paulo and were captured in canopy mist-nets. Micronycteris schmidtorum Sanborn, 1935 and Molossus currentium Thomas, 1901 constitute the first record for the state of São Paulo, and were captured in canopy mist-nets and roosts, respectively. The species richness registered for PECB surpasses other surveys conducted in Atlantic Forest localities that use only ground-level mist-nets. Our results reinforce the importance of employing mixed capture methods, such as elevated mist-nets and searches for roosts.
6
Cardoso, Cláudio Vinícius, Gedimar Pereira Barbosa, Fabrício Braga Rassy, Vlamir José Rocha, and Ricardo Moratelli. "The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo." Zoologia 37 (June 12, 2020): 1–32. https://doi.org/10.5281/zenodo.13492083.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Carlos Botelho State Park (PECB) is a large remnant of Atlantic Forest in Southeastern Brazil, with more than 37,000 ha. As its bat fauna is still unknown, we performed the first bat survey on PECB, to provide data on the distribution, natural history and taxonomy of the species. Fieldwork was conducted monthly, from October 2016 to September 2017. Captures were made using ground-level mist-nets (39600 m2.h), canopy mist-nets (2017.5 m2.h) and searches for roosts (42 hours).We captured 412 bats from 34 species of Phyllostomidae, Molossidae and Vespertilionidae. A total of 11 species were captured only in ground-level mist-nets, five in canopy mist-nets, and seven in roosts. Dermanura cinerea Gervais, 1856, Eptesicus taddeii Miranda, Bernardi & Passos, 2006, Glyphonycteris sylvestris Thomas, 1896 and Lampronycteris brachyotis (Dobson, 1879) are rare on surveys conducted in the Atlantic Forest of São Paulo and were captured in canopy mist-nets. Micronycteris schmidtorum Sanborn, 1935 and Molossus currentium Thomas, 1901 constitute the first record for the state of São Paulo, and were captured in canopy mist-nets and roosts, respectively. The species richness registered for PECB surpasses other surveys conducted in Atlantic Forest localities that use only ground-level mist-nets. Our results reinforce the importance of employing mixed capture methods, such as elevated mist-nets and searches for roosts.
7
Cardoso, Cláudio Vinícius, Gedimar Pereira Barbosa, Fabrício Braga Rassy, Vlamir José Rocha, and Ricardo Moratelli. "The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo." Zoologia 37 (June 7, 2020): 1–32. https://doi.org/10.5281/zenodo.13492083.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Carlos Botelho State Park (PECB) is a large remnant of Atlantic Forest in Southeastern Brazil, with more than 37,000 ha. As its bat fauna is still unknown, we performed the first bat survey on PECB, to provide data on the distribution, natural history and taxonomy of the species. Fieldwork was conducted monthly, from October 2016 to September 2017. Captures were made using ground-level mist-nets (39600 m2.h), canopy mist-nets (2017.5 m2.h) and searches for roosts (42 hours).We captured 412 bats from 34 species of Phyllostomidae, Molossidae and Vespertilionidae. A total of 11 species were captured only in ground-level mist-nets, five in canopy mist-nets, and seven in roosts. Dermanura cinerea Gervais, 1856, Eptesicus taddeii Miranda, Bernardi & Passos, 2006, Glyphonycteris sylvestris Thomas, 1896 and Lampronycteris brachyotis (Dobson, 1879) are rare on surveys conducted in the Atlantic Forest of São Paulo and were captured in canopy mist-nets. Micronycteris schmidtorum Sanborn, 1935 and Molossus currentium Thomas, 1901 constitute the first record for the state of São Paulo, and were captured in canopy mist-nets and roosts, respectively. The species richness registered for PECB surpasses other surveys conducted in Atlantic Forest localities that use only ground-level mist-nets. Our results reinforce the importance of employing mixed capture methods, such as elevated mist-nets and searches for roosts.
8
Cardoso, Cláudio Vinícius, Gedimar Pereira Barbosa, Fabrício Braga Rassy, Vlamir José Rocha, and Ricardo Moratelli. "The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo." Zoologia 37 (September 17, 2020): 1–32. https://doi.org/10.3897/zoologia.37.e36514.
Full textAbstract:
Carlos Botelho State Park (PECB) is a large remnant of Atlantic Forest in Southeastern Brazil, with more than 37,000 ha. As its bat fauna is still unknown, we performed the first bat survey on PECB, to provide data on the distribution, natural history and taxonomy of the species. Fieldwork was conducted monthly, from October 2016 to September 2017. Captures were made using ground-level mist-nets (39600 m<sup>2</sup>.h), canopy mist-nets (2017.5 m<sup>2</sup>.h) and searches for roosts (42 hours).We captured 412 bats from 34 species of Phyllostomidae, Molossidae and Vespertilionidae. A total of 11 species were captured only in ground-level mist-nets, five in canopy mist-nets, and seven in roosts. Dermanura cinerea Gervais, 1856, Eptesicus taddeii Miranda, Bernardi & Passos, 2006, Glyphonycteris sylvestris Thomas, 1896 and Lampronycteris brachyotis (Dobson, 1879) are rare on surveys conducted in the Atlantic Forest of São Paulo and were captured in canopy mist-nets. Micronycteris schmidtorum Sanborn, 1935 and Molossus currentium Thomas, 1901 constitute the first record for the state of São Paulo, and were captured in canopy mist-nets and roosts, respectively. The species richness registered for PECB surpasses other surveys conducted in Atlantic Forest localities that use only ground-level mist-nets. Our results reinforce the importance of employing mixed capture methods, such as elevated mist-nets and searches for roosts.
9
Larsen, Roxanne J., Karen A. Boegler, Hugh H. Genoways, Will P. Masefield, Ronan A. Kirsch, and Scott C. Pedersen. "Mist netting bias, species accumulation curves, and the rediscovery of two bats on Montserrat (Lesser Antilles)." Acta Chiropterologica 9, no. 2 (2007): 423–35. https://doi.org/10.5281/zenodo.13505820.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Mist nets are commonly used to survey bat populations and to estimate bat biodiversity, but several studies have found that mist net capture data and methods are biased due to a number of factors, including size and placement of nets, and the frequency at which investigators check their nets. Despite the wealth of literature and anecdotal reports, few investigators have quantified the interactions of bats with mist nets directly. We employed night vision camcorders to monitor bat behavior when bats encountered a mist net and then utilized these data to reevaluate years of survey data collected on Montserrat, Lesser Antilles. We recorded 2,523 bat passes during 43.3 hours of videotaping in July 2005 and June 2006. Observations conducted on successive nights provide evidence of avoidance-learning behavior in bats. When a mist net was present, 5.4% of bats in the airspace came into contact with the net giving an overall capture rate of 3.2% (range 0–10.3%). Mist nets are not accurately sampling bats that utilize flyways on Montserrat and such fieldwork thereby generates potentially misleading data. Biodiversity assessments and conservation guidelines based on short-term mist net surveys alone are not sufficient or reliable in regards to bats. A pragmatic solution to reduce mist net bias is to repeatedly sample a target region, utilize a variety of netting sites, use variable net sets, and carefully analyze species accumulation curves.
10
Larsen, Roxanne J., Karen A. Boegler, Hugh H. Genoways, Will P. Masefield, Ronan A. Kirsch, and Scott C. Pedersen. "Mist netting bias, species accumulation curves, and the rediscovery of two bats on Montserrat (Lesser Antilles)." Acta Chiropterologica 9, no. 2 (2007): 423–35. https://doi.org/10.5281/zenodo.13505820.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Mist nets are commonly used to survey bat populations and to estimate bat biodiversity, but several studies have found that mist net capture data and methods are biased due to a number of factors, including size and placement of nets, and the frequency at which investigators check their nets. Despite the wealth of literature and anecdotal reports, few investigators have quantified the interactions of bats with mist nets directly. We employed night vision camcorders to monitor bat behavior when bats encountered a mist net and then utilized these data to reevaluate years of survey data collected on Montserrat, Lesser Antilles. We recorded 2,523 bat passes during 43.3 hours of videotaping in July 2005 and June 2006. Observations conducted on successive nights provide evidence of avoidance-learning behavior in bats. When a mist net was present, 5.4% of bats in the airspace came into contact with the net giving an overall capture rate of 3.2% (range 0–10.3%). Mist nets are not accurately sampling bats that utilize flyways on Montserrat and such fieldwork thereby generates potentially misleading data. Biodiversity assessments and conservation guidelines based on short-term mist net surveys alone are not sufficient or reliable in regards to bats. A pragmatic solution to reduce mist net bias is to repeatedly sample a target region, utilize a variety of netting sites, use variable net sets, and carefully analyze species accumulation curves.
11
Berry, Nicholas, Will O'connor, Marc W. Holderied, and Gareth Jones. "Detection and Avoidance of Harp Traps by Echolocating Bats." Acta Chiropterologica 6, no. 2 (2004): 335–46. https://doi.org/10.5281/zenodo.13520437.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Researchers often use harp traps and mist nets to capture bats, and need to be aware of factors that affect trap capture efficiency. Ultrasound reflects from small targets in a frequency-dependent manner, so we predicted that higher frequency sound pulses would return stronger echoes from the fine wires and net of bat traps than would lower frequency signals. We also predicted that mist nets would return stronger echoes than harp traps because mist nets are made of a higher density (and often diameter) of material. Ensonification experiments with pulses of 20–110 kHz showed that both harp traps and mist nets reflected higher frequency pulses more strongly. Pocketed areas of mist nets returned stronger echoes than harp traps although at some frequencies differences between trap types were small. Our results provide one verified reason why harp traps are more effective than mist nets at capturing bats, and also predict that bats using high frequency echolocation calls may be more difficult to trap than species emitting low frequency signals. Interspecies differences in how traps are detected are therefore likely sources of bias in field surveys. Observations of bats encountering harp traps in the field showed less than 4% of encounters resulted in capture, and only 8.8% of encounters could be interpreted as a failure to detect the trap. A comparison between two species that differ in echolocation call and flight characteristics (Rhinolophus hipposideros and Myotis nattereri) showed no difference in trap detection or avoidance. However, differences in behaviour during trap encounters were apparent.
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Berry, Nicholas, Will O'connor, Marc W. Holderied, and Gareth Jones. "Detection and Avoidance of Harp Traps by Echolocating Bats." Acta Chiropterologica 6, no. 2 (2004): 335–46. https://doi.org/10.5281/zenodo.13520437.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Researchers often use harp traps and mist nets to capture bats, and need to be aware of factors that affect trap capture efficiency. Ultrasound reflects from small targets in a frequency-dependent manner, so we predicted that higher frequency sound pulses would return stronger echoes from the fine wires and net of bat traps than would lower frequency signals. We also predicted that mist nets would return stronger echoes than harp traps because mist nets are made of a higher density (and often diameter) of material. Ensonification experiments with pulses of 20–110 kHz showed that both harp traps and mist nets reflected higher frequency pulses more strongly. Pocketed areas of mist nets returned stronger echoes than harp traps although at some frequencies differences between trap types were small. Our results provide one verified reason why harp traps are more effective than mist nets at capturing bats, and also predict that bats using high frequency echolocation calls may be more difficult to trap than species emitting low frequency signals. Interspecies differences in how traps are detected are therefore likely sources of bias in field surveys. Observations of bats encountering harp traps in the field showed less than 4% of encounters resulted in capture, and only 8.8% of encounters could be interpreted as a failure to detect the trap. A comparison between two species that differ in echolocation call and flight characteristics (Rhinolophus hipposideros and Myotis nattereri) showed no difference in trap detection or avoidance. However, differences in behaviour during trap encounters were apparent.
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Gilley, L. Michelle, and Michael L. Kennedy. "A Test of Mist-Net Configurations in Capturing Bats Over Stream Corridors." Acta Chiropterologica 12, no. 2 (2010): 363–69. https://doi.org/10.5281/zenodo.13519749.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Most surveys for bats are conducted using mist nets in riparian areas along stream corridors. Various methods exist for deploying mist nets, but success of using different configurations has not been assessed. We tested efficiency of three configurations of mist nets during summers of 2000 and 2001 at the Milan Army Ammunition Plant (Carroll and Gibson counties) in western Tennessee. Configurations of mist nets included: I (one net placed transverse to stream), T (one net placed transverse to stream, and one net positioned perpendicular to first net in midstream), and Z (two nets positioned parallel to stream, and a center net positioned diagonally between the two nets). The study consisted of 347 net nights and 220 captures of bats (85 I, 62 T, 73 Z). Four species were captured including: 133 Lasiurus borealis, 63 Perimyotis subflavus, 15 Nycticeius humeralis, and nine Myotis austroriparius. Sex-ratios for adults were female biased, while juvenile sex-ratios were near equal. Netting results suggest that traditional I-configurations were statistically equal to T- and Z-configurations for all analyses of total captures and for the two dominant species captured: L. borealis and P. subflavus. Because the I-configuration requires less equipment and time for set-up, capturing bats in linear corridors could be optimized by using more I-nets rather than multiple net configurations.
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Gilley, L. Michelle, and Michael L. Kennedy. "A Test of Mist-Net Configurations in Capturing Bats Over Stream Corridors." Acta Chiropterologica 12, no. 2 (2010): 363–69. https://doi.org/10.5281/zenodo.13519749.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Most surveys for bats are conducted using mist nets in riparian areas along stream corridors. Various methods exist for deploying mist nets, but success of using different configurations has not been assessed. We tested efficiency of three configurations of mist nets during summers of 2000 and 2001 at the Milan Army Ammunition Plant (Carroll and Gibson counties) in western Tennessee. Configurations of mist nets included: I (one net placed transverse to stream), T (one net placed transverse to stream, and one net positioned perpendicular to first net in midstream), and Z (two nets positioned parallel to stream, and a center net positioned diagonally between the two nets). The study consisted of 347 net nights and 220 captures of bats (85 I, 62 T, 73 Z). Four species were captured including: 133 Lasiurus borealis, 63 Perimyotis subflavus, 15 Nycticeius humeralis, and nine Myotis austroriparius. Sex-ratios for adults were female biased, while juvenile sex-ratios were near equal. Netting results suggest that traditional I-configurations were statistically equal to T- and Z-configurations for all analyses of total captures and for the two dominant species captured: L. borealis and P. subflavus. Because the I-configuration requires less equipment and time for set-up, capturing bats in linear corridors could be optimized by using more I-nets rather than multiple net configurations.
15
Robbins, Lynn W., Kevin L. Murray, and Paul M. McKenzie. "Evaluating the Effectiveness of the Standard Mist-netting Protocol for the Endangered Indiana Bat (Myotis sodalis)." Northeastern Naturalist 15, no. 2 (2008): 275–82. https://doi.org/10.5281/zenodo.13432587.
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(Uploaded by Plazi for the Bat Literature Project) Standardized mist-netting protocols set guidelines regarding the best way to sample a bat species or community. We evaluated the current mist-netting guidelines designed to determine presence or absence of endangered, Myotis sodalis (Indiana bat). This test was conducted in Deer Ridge Conservation Area (Lewis County, northeastern Missouri), an area known to have an abundance of Indiana bats, including several primary maternity colonies. We mist-netted according to recommended guidelines for Indiana bats for two consecutive nights at three different times during the reproductive season. Anabat II detectors were used in conjunction with mist nets to sample bat activity at the same locations. Captures and detections of Indiana bats and other species of bats varied substantially among the sampling periods. In addition, there was a significant decrease in number of Indiana bats captured with mist nets from night one to night two, although activity levels remained the same. Finally, our data show that augmenting mist nets with ultrasonic detectors can enhance the probability of determining the presence or absence of Indiana bats.
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Robbins, Lynn W., Kevin L. Murray, and Paul M. McKenzie. "Evaluating the Effectiveness of the Standard Mist-netting Protocol for the Endangered Indiana Bat (Myotis sodalis)." Northeastern Naturalist 15, no. 2 (2008): 275–82. https://doi.org/10.5281/zenodo.13432587.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Standardized mist-netting protocols set guidelines regarding the best way to sample a bat species or community. We evaluated the current mist-netting guidelines designed to determine presence or absence of endangered, Myotis sodalis (Indiana bat). This test was conducted in Deer Ridge Conservation Area (Lewis County, northeastern Missouri), an area known to have an abundance of Indiana bats, including several primary maternity colonies. We mist-netted according to recommended guidelines for Indiana bats for two consecutive nights at three different times during the reproductive season. Anabat II detectors were used in conjunction with mist nets to sample bat activity at the same locations. Captures and detections of Indiana bats and other species of bats varied substantially among the sampling periods. In addition, there was a significant decrease in number of Indiana bats captured with mist nets from night one to night two, although activity levels remained the same. Finally, our data show that augmenting mist nets with ultrasonic detectors can enhance the probability of determining the presence or absence of Indiana bats.
17
Karuntu, Jason Thomas, and Annawaty. "EFEKTIVITAS PENGGUNAAN JARING KABUT DALAM KOLEKSI CHIROPTERA (MEGACHIROPTERA DAN MICROCHIROPTERA)." Biocelebes 14, no. 3 (2020): 237–43. http://dx.doi.org/10.22487/bioceb.v14i3.15421.
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The use of traps is very important in the process of sampling bats in the field. The mist net is a type of traps that commonly used to catch bats for research purposes. This study aims to determine the effectiveness of using mist nets in bats sampling. Sampling site located in the Lindu Plain, District of Sigi, Central Sulawesi. Bats were sampled by mist nets using purposive sampling method, at four different types of habitat. The result of this study indicated that mist net is effective in catching fruit-eating bats (Megachiroptera), but is not effective in capturing insectivorous bats (Microchiroptera).
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Joos, Richard. "Monitoring bird populations using mist nets." Journal of Field Ornithology 77, no. 2 (2006): 234–35. http://dx.doi.org/10.1111/j.1557-9263.2006.00046_2.x.
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LUCK, GARY W. "Monitoring Bird Populations Using Mist Nets." Austral Ecology 31, no. 3 (2006): 428. http://dx.doi.org/10.1111/j.1442-9993.2006.01626.x.
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Blake, John G., and Bette A. Loiselle. "Bird Assemblages in Second-Growth and Old-Growth Forests, Costa Rica: Perspectives From Mist Nets and Point Counts." Auk 118, no. 2 (2001): 304–26. http://dx.doi.org/10.1093/auk/118.2.304.
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Abstract Second growth has replaced lowland forest in many parts of the Neotropics, providing valuable habitat for many resident and migrant bird species. Given the prevalence of such habitats and the potential benefit for conservation of biodiversity, it is important to understand patterns of diversity in second growth and old growth. Descriptions of species-distribution patterns may depend, however, on method(s) used to sample birds. We used data from mist nets and point counts to (1) describe species diversity and community composition in second-growth (young and old) and old-growth forests at La Selva Biological Station, Costa Rica; and (2) to evaluate perspectives on community composition provided by the two methods. We recorded 249 species from 39 families, including 196 species captured in mist nets (10,019 captures) and 215 recorded during point counts (15,577 observations), which represents ∼78% of the terrestrial avifauna known from La Selva (excluding accidentals and birds characteristic of aquatic or aerial habitats). There were 32 threatened species, 22 elevational migrants, and 40 latitudinal migrants. Species richness (based on rarefaction analyses of capture and count data) was greatest in the youngest site. Latitudinal migrants were particularly common in second growth; elevational migrants were present in both young and old forest, but were more important in old-growth forest. Several threatened species common in second growth were not found in old-growth forests. Trophic composition varied less among sites than did species composition. Mist nets and point counts differed in numbers and types of species detected. Counts detected more species than nets in old-growth forest, but not in young second growth. Mist nets detected 62% of the terrestrial avifauna, and point counts detected 68%. Fifty-three species were observed but not captured, and 34 species were captured but not observed. Six families were not represented by mist-net captures. Data from mist nets and point counts both support the conclusion that second-growth vegetation provides habitat for many species.
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Flaquer, Carles, Ignacio Torre, and Antoni Arrizabalaga. "Comparison of Sampling Methods for Inventory of Bat Communities." Journal of Mammalogy 88, no. 2 (2007): 526–33. https://doi.org/10.5281/zenodo.13475631.
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(Uploaded by Plazi for the Bat Literature Project) From 1999 to 2005, we sampled the bat fauna of Catalonia (northeastern Spain, Mediterranean region) using 3 methods (bat detectors, mist nets, and roost surveys) and determined the total number of bat species present (S ¼ 22). Twelve bat species and 5 acoustic groups (!5 different species) were identified using bat detectors, 17 species were found during roost inspections, and 13 species were trapped using mist nets. However, mist nets yielded the highest species richness per number of individuals sampled, as demonstrated by rarefaction. Some species were always either over- or undersampled according to the sampling method used. We also evaluated 3 guilds of bats defined by summer roost preferences, documenting a significant correlation between guild and detection method; cavity-roosting bats were underrepresented when only bat detectors and mist-net surveys were used, whereas rock crevices or man-made structure and tree guilds were underrepresented when only roosts were surveyed. Different techniques should be used to assess the richness of bat communities and we recommend combining all the methods described above in future bat surveys.
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Flaquer, Carles, Ignacio Torre, and Antoni Arrizabalaga. "Comparison of Sampling Methods for Inventory of Bat Communities." Journal of Mammalogy 88, no. 2 (2007): 526–33. https://doi.org/10.5281/zenodo.13475631.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) From 1999 to 2005, we sampled the bat fauna of Catalonia (northeastern Spain, Mediterranean region) using 3 methods (bat detectors, mist nets, and roost surveys) and determined the total number of bat species present (S ¼ 22). Twelve bat species and 5 acoustic groups (!5 different species) were identified using bat detectors, 17 species were found during roost inspections, and 13 species were trapped using mist nets. However, mist nets yielded the highest species richness per number of individuals sampled, as demonstrated by rarefaction. Some species were always either over- or undersampled according to the sampling method used. We also evaluated 3 guilds of bats defined by summer roost preferences, documenting a significant correlation between guild and detection method; cavity-roosting bats were underrepresented when only bat detectors and mist-net surveys were used, whereas rock crevices or man-made structure and tree guilds were underrepresented when only roosts were surveyed. Different techniques should be used to assess the richness of bat communities and we recommend combining all the methods described above in future bat surveys.
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Chaves-Ramírez, Silvia, Christian Castillo-Salazar, Mariela Sánchez-Chavarría, Hellen Solís-Hernández, and Gloriana Chaverri. "Comparing the efficiency of monofilament and regular nets for capturing bats." Royal Society Open Science 8, no. 12 (2021): 211404. https://doi.org/10.5281/zenodo.13426062.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Regular nylon or polyester mist nets used for capturing bats have several drawbacks, particularly that they are inefficient at sampling insectivorous species. One possible alternative is to use monofilament nets, whose netting is made of single strands of yarn instead of several as regular nets, making them less detectable. To date, only one study has quantified the differences in capture rates between monofilament and regular mist nets for the study of bats, yet surprisingly, its findings suggest that the latter are more efficient than the former. Here, we provide further evidence of the differences in sampling efficiency between these two nets. We captured 90 individuals and 14 species in regular nets and 125 individuals and 20 species in monofilament nets. The use of monofilament nets increased overall capture rates, particularly for insectivorous species. Species accumulation curves indicate that samples based on regular nets are significantly underestimating species diversity, most notably as these nets fail at sampling rare species. We show that incorporating monofilament nets into bat studies offers an opportunity to expand records of different guilds and rare bat species and to improve our understanding of poorly known bat assemblages while using a popular, relatively cheap and portable sampling method.
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Chaves-Ramírez, Silvia, Christian Castillo-Salazar, Mariela Sánchez-Chavarría, Hellen Solís-Hernández, and Gloriana Chaverri. "Comparing the efficiency of monofilament and regular nets for capturing bats." Royal Society Open Science 8, no. 12 (2021): 211404. https://doi.org/10.5281/zenodo.13426062.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Regular nylon or polyester mist nets used for capturing bats have several drawbacks, particularly that they are inefficient at sampling insectivorous species. One possible alternative is to use monofilament nets, whose netting is made of single strands of yarn instead of several as regular nets, making them less detectable. To date, only one study has quantified the differences in capture rates between monofilament and regular mist nets for the study of bats, yet surprisingly, its findings suggest that the latter are more efficient than the former. Here, we provide further evidence of the differences in sampling efficiency between these two nets. We captured 90 individuals and 14 species in regular nets and 125 individuals and 20 species in monofilament nets. The use of monofilament nets increased overall capture rates, particularly for insectivorous species. Species accumulation curves indicate that samples based on regular nets are significantly underestimating species diversity, most notably as these nets fail at sampling rare species. We show that incorporating monofilament nets into bat studies offers an opportunity to expand records of different guilds and rare bat species and to improve our understanding of poorly known bat assemblages while using a popular, relatively cheap and portable sampling method.
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Piratelli, A. "Mesh size and bird capture rates in Mato Grosso do Sul State, Brazil." Brazilian Journal of Biology 63, no. 1 (2003): 105–11. http://dx.doi.org/10.1590/s1519-69842003000100014.
Full textAbstract:
Mist-nets alternating 36-mm and 61-mm mesh in woods and low vegetation of "cerrado" (Brazilian savanna) tested bird-capture efficiency relative to bird length and mass. Of 1,296 birds captured and 102 species, 785 (93 species) were with 36-m mesh and 511 (69 species) with 61-mm mesh. The 61-mm mesh improved capture rates only for some larger species; so, in general, 36-mm mesh mist-nets are more appropriate for field work in "cerrado" areas.
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López Gallego, Zeltia, Pamela Medina-van Berkum, and Thomas Edward Martin. "Opportunistic predation events of bats entangled in mist nets by margay Leopardus wiedii (Schinz, 1821) in northwest Honduras: recommendations to avoid preventable casualties." Barbastella 14, no. 1 (2021): 33–36. http://dx.doi.org/10.14709/barbj.14.1.2021.04.
Full textAbstract:
Predation of entangled bats captured in mist-nets is common but infrequently documented. As such, this welfare issue is often not considered when mist-netting surveys are being designed. Margays (Leoparduswiedii) are small neotropical cats that are known to have a varied diet and exhibit opportunistic hunting behaviour. Despite bats not having been frequently reported as a prey item for margays, studies on this felid’s feeding ecology remain scarce. We discuss the potential for margays to feed on bats when they become entangled in mist nets, providing two examples from Cusuco National Park, Honduras. In light of this, we provide recommendations as to how such opportunistic predation events can be mitigated in future surveys.
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Łangowska, Aleksandra, Reuven Yosef, Piotr Skórka, and Piotr Tryjanowski. "Mist-Netting of Migrating Bee-Eaters Positively Influences Honey Bee Colony Performance." Journal of Apicultural Science 62, no. 1 (2018): 67–78. http://dx.doi.org/10.2478/jas-2018-0008.
Full textAbstract:
Abstract Bee-eaters (Meropidae) are considered agricultural pests and their presence provokes conflicts with beekeepers and farmers who rely on the pollination services of honey bees. This problem is often deal with through the mass killing of the birds, even though the quantitative evidence on the impact of bee-eaters on honey bee colonies is scarce. The current paper reports the performance of honey bee colonies protected with mist nets from migrating flocks of European bee-eaters Merops apiaster in Israel. In the study the weight gains of bee hives surrounded by mist nets were 6.44 times higher than that of unprotected hives (26.4 kg vs. 4.1 kg). The results confirmed that bee-eaters locally pose a problem to apiaries and potentially to the crops that require pollination. Mist- netting appeared to be an effective mitigation method for alleviating conflicts between beekeepers and bee-eaters. However, the study also showed that bees were able to differentiate between their main predator and other avian species trapped in mist nets and stung only bee-eaters. Moreover, the bees were targeting the most vulnerable body parts of birds which resulted in some bird fatalities. Therefore, due to accidental mortal- ity of birds, mist-netting is recommended only on the migratory routes in cases when bee hives cannot be moved to other areas.
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Recher, HF, G. Gowing, and T. Armstrong. "Causes and Frequencey of Deaths among Birds Mist-Netted for Banding Studies at Two Localities." Wildlife Research 12, no. 2 (1985): 321. http://dx.doi.org/10.1071/wr9850321.
Full textAbstract:
During studies of forest and heathland birds undertaken by the authors in south-eastem Australia, 53 (1.3%) of 4184 birds caught in mist nets died in the nets or when handled for banding. Mortality was higher in the study offorest birds, where 2.8% of individuals died, than in that of heathland birds, where 0.5% died. There was no relation between the size or kinds of birds handled and mortality. Instead, the difference between the two studies was probably the result of better procedures for handling birds in the heathland study. Causes of mortality, and ways to avoid or minimize injury to or death of birds during use of mist-nets, are discussed.
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Portfors, Christine V., M. Brock Fenton, Ludmilla M. De S. Aguiar, et al. "Bats from Fazenda Intervales, Southeastern Brazil: species account and comparison between different sampling methods." Revista Brasileira de Zoologia 17, no. 2 (2000): 533–38. https://doi.org/10.5281/zenodo.13435113.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Assessing the composition of an area's bat fauna is typically accomplished by using captures or by monitoring echo location calls with bat detectors. The two methods may not provide the same data regarding species composi tion. Mist nets and harp traps may be biased towards samp ling low flying spec ies, and bat detectors biased towards detecting high intensity echo locators. A comparison of the bat fauna of Fazenda Intervales, southeastern Brazil, as revealed by mist nets and harp trap captures, checking roosts and by monitoring echolocation calls offlying bats illustrates this point. A total of 17 species ofbats was sampled. F0U11een bat species were captured and the echolocation calls of 12 species were recorded, three of them not revealed by mist nets or harp traps. The different sampling methods provided dilTerent pictures of the bat fauna. Phyllostomid bats dominated the catches in mist nets, but in the field their echolocation calls were never detected. No single sampling approach provided a complete assessment of the bat fauna in the study area. In general, bats producing low intensity echolocation calls, such as phyllostomids, are more easily assessed by netting, and bats producing high intensity echolocation calls are better surveyed by bat detectors. The results demonstrate that a combined and varied approach to sampling is required for a complete assessment of th e bat fauna of an area.
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Portfors, Christine V., M. Brock Fenton, Ludmilla M. De S. Aguiar, et al. "Bats from Fazenda Intervales, Southeastern Brazil: species account and comparison between different sampling methods." Revista Brasileira de Zoologia 17, no. 2 (2000): 533–38. https://doi.org/10.5281/zenodo.13435113.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Assessing the composition of an area's bat fauna is typically accomplished by using captures or by monitoring echo location calls with bat detectors. The two methods may not provide the same data regarding species composi tion. Mist nets and harp traps may be biased towards samp ling low flying spec ies, and bat detectors biased towards detecting high intensity echo locators. A comparison of the bat fauna of Fazenda Intervales, southeastern Brazil, as revealed by mist nets and harp trap captures, checking roosts and by monitoring echolocation calls offlying bats illustrates this point. A total of 17 species ofbats was sampled. F0U11een bat species were captured and the echolocation calls of 12 species were recorded, three of them not revealed by mist nets or harp traps. The different sampling methods provided dilTerent pictures of the bat fauna. Phyllostomid bats dominated the catches in mist nets, but in the field their echolocation calls were never detected. No single sampling approach provided a complete assessment of the bat fauna in the study area. In general, bats producing low intensity echolocation calls, such as phyllostomids, are more easily assessed by netting, and bats producing high intensity echolocation calls are better surveyed by bat detectors. The results demonstrate that a combined and varied approach to sampling is required for a complete assessment of th e bat fauna of an area.
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Gukasova, Alona, and Anton Vlaschenko. "Effectiveness of mist-netting of bats (Chiroptera, Mammalia) during the non-hibernation period in oak forests of Eastern Ukraine." Acta Zoologica Cracoviensia - Series A: Vertebrata 54, no. 1 (2011): 77–93. https://doi.org/10.5281/zenodo.14818283.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) We tested how the effectiveness of capturing bats with mist nets varied by month (April-September), period in the bat life cycle, habitat and capture effort. A total of 898 bats of 10 species were captured in the National Nature Park "Gomolshansky lessy" from 2006 to 2009. The most successful month of mist-netting was July with a median value of 4.0 (range 0-16.7) b/h (bats per hour) index and bats caught on 94% of nights. The ratio of different bat species changed in different periods of the bat life cycle. The highest number of bat species was caught in July (n=9). Mist nets placed along an ecotone – the border between forest and river – were the most efficient. The period when young-of-theyear bats become volant is concluded to be the most effective period for mist-netting.
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López, Gallego Zeltia, Berkum Pamela Medina-van, and Martin Thomas Edward. "Opportunistic predation events of bats entangled in mist nets by margay Leopardus wiedii (Schinz, 1821) in northwest Honduras: recommendations to avoid preventable casualties." Barbastella 14, no. 1 (2021): 33–36. https://doi.org/10.5281/zenodo.13453225.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Predation of entangled bats captured in mist-nets is common but infrequently documented. As such, this welfare issue is often not considered when mist-netting surveys are being designed. Margays (Leopardus wiedii) are small neotropical cats that are known to have a varied diet and exhibit opportunistic hunting behaviour. Despite bats not having been frequently reported as a prey item for margays, studies on this felid's feeding ecology remain scarce. We discuss the potential for margays to feed on bats when they become entangled in mist nets, providing two examples from Cusuco National Park, Honduras. In light of this, we provide recommendations as to how such opportunistic predation events can be mitigated in future surveys.
33
López, Gallego Zeltia, Berkum Pamela Medina-van, and Martin Thomas Edward. "Opportunistic predation events of bats entangled in mist nets by margay Leopardus wiedii (Schinz, 1821) in northwest Honduras: recommendations to avoid preventable casualties." Barbastella 14, no. 1 (2021): 33–36. https://doi.org/10.5281/zenodo.13453225.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Predation of entangled bats captured in mist-nets is common but infrequently documented. As such, this welfare issue is often not considered when mist-netting surveys are being designed. Margays (Leopardus wiedii) are small neotropical cats that are known to have a varied diet and exhibit opportunistic hunting behaviour. Despite bats not having been frequently reported as a prey item for margays, studies on this felid's feeding ecology remain scarce. We discuss the potential for margays to feed on bats when they become entangled in mist nets, providing two examples from Cusuco National Park, Honduras. In light of this, we provide recommendations as to how such opportunistic predation events can be mitigated in future surveys.
34
Samoray, Stephen T., Mark W. Gumbert, Piper L. Roby, Gregg A. Janos, and Richard R. Borthwick. "Effectiveness of Acoustic Lures for Increasing Indiana Bat Captures in Mist-Nets." Journal of Fish and Wildlife Management 10, no. 1 (2018): 206–12. http://dx.doi.org/10.3996/122017-jfwm-101.
Full textAbstract:
Abstract As bat (Chiroptera) populations continue to decline in the eastern United States due to threats such as white-nose syndrome and interactions with wind facilities, capturing already rare species such as the federally endangered Indiana bat Myotis sodalis to assess health and demographics has become increasingly difficult. Mist-nets are a standard method for capturing and studying bats, but bats have the ability to escape from or avoid mist-nets. Past research has shown that the use of acoustic lures may increase mist-net capture success. Using prerecorded Indiana bat social calls, we tested the effectiveness of acoustic lures on capture rates across 24 nights at 37 sites in summers 2013 and 2014 in north-central Kentucky. Each site consisted of two nets (treatment and control) placed &gt;35 m apart: we placed an acoustic lure set 1 m in front of the treatment net, whereas the control net received no lure. At the species level, we recorded significantly more captures in treatment nets (n = 262) than in control nets [n = 128; t(36) = 5.08, P &lt; 0.001]. However, although we found a trend toward higher Indiana bat captures, the only species' with significant positive responses were evening bats Nycticeius humeralis [t(15) = 6.25, P &lt; 0.001] and eastern red bats Lasiurus borealis [t(36) = 3.60, P &lt; 0.001]. Further study is required to determine whether modifications to lure settings or call types result in increased Indiana bat captures.
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Samoray, Stephen T., Mark W. Gumbert, Piper L. Roby, Gregg A. Janos, and Richard R. Borthwick. "Effectiveness of Acoustic Lures for Increasing Indiana Bat Captures in Mist-Nets." Journal of Fish and Wildlife Management 10, no. 1 (2019): 206–12. https://doi.org/10.5281/zenodo.13431531.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) As bat (Chiroptera) populations continue to decline in the eastern United States due to threats such as white-nose syndrome and interactions with wind facilities, capturing already rare species such as the federally endangered Indiana bat Myotis sodalis to assess health and demographics has become increasingly difficult. Mist-nets are a standard method for capturing and studying bats, but bats have the ability to escape from or avoid mist-nets. Past research has shown that the use of acoustic lures may increase mist-net capture success. Using prerecorded Indiana bat social calls, we tested the effectiveness of acoustic lures on capture rates across 24 nights at 37 sites in summers 2013 and 2014 in north-central Kentucky. Each site consisted of two nets (treatment and control) placed .35 m apart: we placed an acoustic lure set 1 m in front of the treatment net, whereas the control net received no lure. At the species level, we recorded significantly more captures in treatment nets (n ¼ 262) than in control nets [n ¼ 128; t(36) ¼ 5.08, P , 0.001]. However, although we found a trend toward higher Indiana bat captures, the only species' with significant positive responses were evening bats Nycticeius humeralis [t(15) ¼ 6.25, P , 0.001] and eastern red bats Lasiurus borealis [t(36) ¼ 3.60, P , 0.001]. Further study is required to determine whether modifications to lure settings or call types result in increased Indiana bat captures.
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Samoray, Stephen T., Mark W. Gumbert, Piper L. Roby, Gregg A. Janos, and Richard R. Borthwick. "Effectiveness of Acoustic Lures for Increasing Indiana Bat Captures in Mist-Nets." Journal of Fish and Wildlife Management 10, no. 1 (2019): 206–12. https://doi.org/10.5281/zenodo.13431531.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) As bat (Chiroptera) populations continue to decline in the eastern United States due to threats such as white-nose syndrome and interactions with wind facilities, capturing already rare species such as the federally endangered Indiana bat Myotis sodalis to assess health and demographics has become increasingly difficult. Mist-nets are a standard method for capturing and studying bats, but bats have the ability to escape from or avoid mist-nets. Past research has shown that the use of acoustic lures may increase mist-net capture success. Using prerecorded Indiana bat social calls, we tested the effectiveness of acoustic lures on capture rates across 24 nights at 37 sites in summers 2013 and 2014 in north-central Kentucky. Each site consisted of two nets (treatment and control) placed .35 m apart: we placed an acoustic lure set 1 m in front of the treatment net, whereas the control net received no lure. At the species level, we recorded significantly more captures in treatment nets (n ¼ 262) than in control nets [n ¼ 128; t(36) ¼ 5.08, P , 0.001]. However, although we found a trend toward higher Indiana bat captures, the only species' with significant positive responses were evening bats Nycticeius humeralis [t(15) ¼ 6.25, P , 0.001] and eastern red bats Lasiurus borealis [t(36) ¼ 3.60, P , 0.001]. Further study is required to determine whether modifications to lure settings or call types result in increased Indiana bat captures.
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Castro, Isai Jorge De, Claudia Regina Silva, Arley José Silveira Da Costa, and Ana Carolina Moreira Martins. "Predação oportunista de Artibeus planirostris (Spix, 1823) e Carollia perspicillata (Linnaeus, 1758) (Chiroptera, Phyllostomidae) por marsupiais e anuro na APA do Rio Curiaú, Amapá, Brasil." Acta Amazonica 41, no. 1 (2011): 171–74. https://doi.org/10.5281/zenodo.13457294.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) We observed three occasional predations of bats captured in mist nets by marsupials and a frog during studies in a várzea forest in the Amapá state. Artibeus planirostris (Spix, 1823) (Chiroptera, Phyllostomidae) was preyed upon by Didelphis marsupialis Linnaeus, 1758 and Philander opossum (Linnaeus, 1758) (Didelphimorphia, Didelphidae). Carollia perspicillata (Linnaeus, 1758) (Chiroptera, Phyllostomidae) was preyed on by Leptodactylus pentadactylus (Laurenti, 1768) (Anura, Leptodactylidae). The bats vocalizations probably attracted the marsupials and a frog to the mist nets where they preyed. This interaction form can occur naturally, however, are more difficult to observed.
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Castro, Isai Jorge De, Claudia Regina Silva, Arley José Silveira Da Costa, and Ana Carolina Moreira Martins. "Predação oportunista de Artibeus planirostris (Spix, 1823) e Carollia perspicillata (Linnaeus, 1758) (Chiroptera, Phyllostomidae) por marsupiais e anuro na APA do Rio Curiaú, Amapá, Brasil." Acta Amazonica 41, no. 1 (2011): 171–74. https://doi.org/10.5281/zenodo.13457294.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) We observed three occasional predations of bats captured in mist nets by marsupials and a frog during studies in a várzea forest in the Amapá state. Artibeus planirostris (Spix, 1823) (Chiroptera, Phyllostomidae) was preyed upon by Didelphis marsupialis Linnaeus, 1758 and Philander opossum (Linnaeus, 1758) (Didelphimorphia, Didelphidae). Carollia perspicillata (Linnaeus, 1758) (Chiroptera, Phyllostomidae) was preyed on by Leptodactylus pentadactylus (Laurenti, 1768) (Anura, Leptodactylidae). The bats vocalizations probably attracted the marsupials and a frog to the mist nets where they preyed. This interaction form can occur naturally, however, are more difficult to observed.
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Amorim, Paulo Sérgio, Mariana Fonseca Rossi, and André de Camargo Guaraldo. "Rise-Up mist-netting (RUM): a mobile protocol for trapping wary territorial birds." Papéis Avulsos de Zoologia 61 (January 29, 2021): e20216110. http://dx.doi.org/10.11606/1807-0205/2021.61.10.
Full textAbstract:
Many bird species avoid traditional traps such as mist nets, thus alternative trapping methods are often needed. The Rufous Hornero (Furnariidae: Furnarius rufus) is one such species that was captured so far using conventional mist netting in rural areas or using nest-targeted traps, which risk nest damage and abandonment. Here we describe the novel rise-up mist-netting (RUM) protocol and its catchability for the wary and territorial Rufous Hornero in an urban area. The RUM trap allowed us quickly capturing 40 Rufous Hornero individuals even in paved parking lots and streets during the bird’s breeding period. The RUM is an active and targeted protocol that demands a single and quickly trainable field assistant. Therefore, it should also enable the capture of many understudied territorial but wary species. Moreover, it has enough mobility to fit studies in urban areas, and whenever researchers may deal with limited space and, at the same time, should reduce negative visual impacts to the general public of birds’ capturing and banding procedures.
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Gómez-Corea, Wilson Noel, Farlem Gabriel España, David Josué Mejía-Quintanilla, and Andrea Nicole Figueroa-Grande. "Bats (Mammalia, Chiroptera) from Yuscarán in Eastern Honduras: Conservation and acoustic characterization for the insectivorous species." Papéis Avulsos de Zoologia 61 (September 4, 2021): e20216179. http://dx.doi.org/10.11606/1807-0205/2021.61.79.
Full textAbstract:
In Honduras, most bat inventories have been carried out with mist nets as the main sampling method, skewing knowledge towards the Phyllostomidae family, therefore the diversity and distribution of insectivorous bats is underrepresented. In order to have a more complete knowledge of the diversity of bats in the municipality of Yuscarán and mainly in the Yuscarán Biological Reserve, an inventory was carried out using the techniques of mist-netting and acoustic monitoring. The samplings were carried out between 910 and 1,827 m.a.s.l., covering agroecosystems, broadleaf forest, pine forest and urban environment. A total of 32 species of bats were registered, which represents 28% of the species diversity present in Honduras. Species belonging to five families were recorded: Emballonuridae (6.25%), Mormoopidae (15.22%), Phyllostomidae (56.25%), Molossidae (9.37%) and Vespertilionidae (12.5%). With the mist nets, a sampling effort of 7,128 m²/h was reached, which allowed the capture of 20 species and 186 individuals. Through the acoustic method, with 84 h/r, 13 species of insectivorous bats were recorded. The values of the acoustic parameters analysed from the search phase of each insectivorous species are provided, which can serve as a reference for the identification of species from Hondurans. To advance our understanding of the distribution patterns, composition, and vocal signatures of insectivore bats, we suggest the complementary use of mist nets and acoustic recorders in the inventories.
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Deus, Filipe Ferreira de, Karl-L. Schuchmann, Ana Silvia de Oliveira Tissiani, Wagner Nogueira, and Marinêz Isaac Marques. "Avian biodiversity assessment studies in a Neotropical wetland – the combination of sampling methods makes the difference." Papéis Avulsos de Zoologia 63 (June 21, 2023): e202363015. http://dx.doi.org/10.11606/1807-0205/2023.63.015.
Full textAbstract:
In studies of avian diversity, many different methods have been applied. Since methodological approaches may affect research results, the choice of a given methodology must be consistent with the scientific objectives. The aim of this study was to investigate how different methodologies with their intrinsic limitations help detect and monitor birds to evaluate how they complement each other in the survey of species. Three different assessment methods, mist nets, point counts, and autonomous acoustic recordings were used to serve this purpose in a study of different Pantanal habitats, such as savannas and forests. The point counts detected more species (126 species) than the two other methods autonomous acoustic recordings (113 species) and mist nets (79 species). We observed significant differences in the number of species detected by mist nets and the other two methods. Each survey method identified exclusive species. When comparing habitats, all three methods showed significant differences in bird species composition. Savannas were richer in bird species than forests, and replacement was the main driver responsible for the differences in beta diversity between the habitats. The three methodologies, when applied together, proved to be complementary in avian species detection.
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Erokhina, Maria, Andrey Bushuev, Vaidas Palinauskas, Elena Platonova, and Andrey Mukhin. "Intensity of <em>Haemoproteus</em> spp. blood infection differs between wild birds captured using different trapping methods." Biological Communications 69, no. 3 (2024): 192–99. https://doi.org/10.21638/spbu03.2024.307.
Full textAbstract:
Infection with haemoparasites (Haemosporida spp.) is common within wild birds’ populations and has been associated with adverse effects on birds’ fitness and life performance. Existing literature suggests a hypothesis that birds infected with haemosporidians and exhibiting high parasitemia levels may demonstrate reduced activity, potentially leading to their underrepresentation in captures which use stationary traps, such as mist nets. However, there are limited studies demonstrating this phenomenon in wild birds. To study the possible under representation of highly parasitized birds, captured with commonly used stationary mist nets, we compared parasitemia levels of haemosporidian parasites in wild birds captured during spring migration using both actively startling of birds and birds trapped passively into the mist nets. Utilizing cumulative link mixed models, we assessed the influence of trapping methods on parasitemia scores, controlling for factors such as species identity, season progression, and migration distance. Our dataset comprised 1815 individuals of 60 species, including 142 actively captured and 1673 passively captured ones. Although the number of infected individuals was higher in passively caught birds (24 % in active vs 43 % in passive), the study revealed a significant difference between infected birds within two capture methods: despite challenges in balancing sample sizes, and trapping dates, the findings affirm the underestimation of birds having high parasitemia levels with prevalent mist net techniques. We highlight the importance of considering potential biases in trapping methods when studying haemosporidian parasites in avian hosts during migration.
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Heath, Julie A., and Peter C. Frederick. "Trapping White Ibises with rocket nets and mist nets in the Florida Everglades." Journal of Field Ornithology 74, no. 2 (2003): 187–92. http://dx.doi.org/10.1648/0273-8570-74.2.187.
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Guimarães, David Pedroza, Jônatas Lima, Vanessa Lima Souza, and Edson Guilherme. "Birds trapped in mist nets killed by opportunistic predators in a forest in Southwestern Amazonia." Revista Brasileira de Zoociências 21, no. 1 (2020): 1–8. http://dx.doi.org/10.34019/2596-3325.2020.v21.28868.
Full textAbstract:
The use of mist nets is a highly used method among researchers due to their efficiency in capture birds and bats. However, trapped animals are vulnerable to predator action. During three ornithological studies carried out in a forest fragment from southwest Amazonia, we recorded 15 predation events, with predation rate of 1.5%. Among predators, 26.7% (n = 4) of the cases were related to primates, 13.3% (n = 2) related to army ants, 13.3% (n = 2) related to an unidentified hawk species and in 46.7% (n = 7) of the cases the predators did not identified. Preventing predator access to mist nets and reducing network monitoring time are some of the measures that can prevent these events.
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Desvars, Amélie, Thomas Duval, Clément Punelle, Michel Pascal, and Gwenaël Vourc'h. "The Flying Fox Pteropus seychellensis of Mayotte (Comoros): Method of Capture and Blood Sampling." Journal of wildlife diseases 45 (June 12, 2009): 870–3. https://doi.org/10.5281/zenodo.13531562.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Pteropus seychellensis comorensis is the only Pteropodidae bat species on the island of Mayotte (Comoros Archipelago), and most aspects of its biology are unknown. In order to catch this large bat, we used a simple and low-cost method, consisting of raised mist nets that were set close to foraging sites. Major factors driving catch success were high food availability, good positioning of mist nets, and careful observation of movement patterns to identify foraging sites where the chances of capture are high. Blood was collected from the alar and humeral veins, which appear to be more practical for this purpose than other parts of the venous system.
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Desvars, Amélie, Thomas Duval, Clément Punelle, Michel Pascal, and Gwenaël Vourc'h. "The Flying Fox Pteropus seychellensis of Mayotte (Comoros): Method of Capture and Blood Sampling." Journal of wildlife diseases 45 (June 7, 2009): 870–3. https://doi.org/10.5281/zenodo.13531562.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) Pteropus seychellensis comorensis is the only Pteropodidae bat species on the island of Mayotte (Comoros Archipelago), and most aspects of its biology are unknown. In order to catch this large bat, we used a simple and low-cost method, consisting of raised mist nets that were set close to foraging sites. Major factors driving catch success were high food availability, good positioning of mist nets, and careful observation of movement patterns to identify foraging sites where the chances of capture are high. Blood was collected from the alar and humeral veins, which appear to be more practical for this purpose than other parts of the venous system.
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Mohd-Azlan, J., J. NEUCHLOS, and M.T. Abdullah. "DIVERSITY OF CHIROPTERANS IN LIMESTONE FOREST AREA, BAU, SARAWAK." Malays. Appl. Biol. 34, no. 1 (2005): 59–64. https://doi.org/10.5281/zenodo.13509356.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) A study on understory chiropteran diversity and relative abundance was examined using harp traps and mist nets around Bau Limestone area, Sarawak. A total of 23 species from four families were captured during 20 sampling nights. This represents approximately 24% of the total species recorded in Borneo. A total of 107 and 43 individuals of bats were captured using harp traps and mist nets respectively. The most frequently captured species was Penthetor lucasi followed by Hipposideros galeritus, which comprised 25% and 14% of the total capture respectively. Even though the species accumulation curve showed signs of levelling out, additional effort at the sub-canopy and canopy level may yield in higher diversity record.
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Mohd-Azlan, J., J. NEUCHLOS, and M.T. Abdullah. "DIVERSITY OF CHIROPTERANS IN LIMESTONE FOREST AREA, BAU, SARAWAK." Malays. Appl. Biol. 34, no. 1 (2005): 59–64. https://doi.org/10.5281/zenodo.13509356.
Full textAbstract:
(Uploaded by Plazi for the Bat Literature Project) A study on understory chiropteran diversity and relative abundance was examined using harp traps and mist nets around Bau Limestone area, Sarawak. A total of 23 species from four families were captured during 20 sampling nights. This represents approximately 24% of the total species recorded in Borneo. A total of 107 and 43 individuals of bats were captured using harp traps and mist nets respectively. The most frequently captured species was Penthetor lucasi followed by Hipposideros galeritus, which comprised 25% and 14% of the total capture respectively. Even though the species accumulation curve showed signs of levelling out, additional effort at the sub-canopy and canopy level may yield in higher diversity record.
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Atmoko, T., A. W. Nugroho, and Mukhlisi. "Bird’s species response to the ex-coal mining reclamation stages." IOP Conference Series: Earth and Environmental Science 1027, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1755-1315/1027/1/012009.
Full textAbstract:
Abstract Birds played an essential role in the life cycle. This study aimed to determine the bird diversity in coal mining reclamation areas with different ages of reclamation plants: one, four, and eight years old, located in East Kalimantan, Indonesia. The bird diversity was determined using two methods: direct observation and capture-released using mist nets. The birds captured by mist nets were identified, and morphometric measurements were conducted. The results showed 26 species of birds found in this study. Birds species were dominated by Blue-throated bee-eater (Merops viridis), Yellow-vented bulbul (Pycnonotus goiavier), Asian-glossy starling (Aplonis panayensis), and Javan myna (Acridotheres javanicus). The bird’s diversity in the reclamation area with four years of reclamation plants was higher than the other areas. However, the number of birds in the reclamation area with eight years of reclamation plants was the highest. Differences in habitat conditions in the three research areas might cause a low similarity index of bird diversity. Javan myna and Yellow-vented bulbul were found in all research sites. In conclusion, pioneer bird species were observed during the early process of post-coal mining reclamation. The existence of cover crops was essential as a source of food for the birds and nests.
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Stokes, Austin E., Brian B. Schultz, Richard M. Degraaf, and Curtice R. Griffin. "SETTING MIST NETS FROM PLATFORMS IN THE FOREST CANOPY." Journal of Field Ornithology 71, no. 1 (2000): 57–65. http://dx.doi.org/10.1648/0273-8570-71.1.57.
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