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Dissertations / Theses on the topic 'Free-tailed bats'

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1

Tsita, Johannes Ngoako. "Reproductive biology of the Egyptian free-tailed bat, Tadarida Aegyptiaca." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1005442.

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The reproductive biology of Tadarida aegyptiaca was studied using specimens collected in the Cape Province of South Africa. The morphology of the reproductive tract of the species was generally similar to that of other molossids, however, the absence of Cowpers glands was unusual. Spermatogenesis began in February and spermatozoa were released to the cauda epididymis during August and September. Follicular development started in March and culminated with the appearance of Graafian follicles in July. Ovulation probably occurred in August and specimens were pregnant by September. Gestation lengt
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2

Klug, Achim Egbert. "The response of inferior colliculus neurons in the Mexican free-tailed bat to species-specific calls." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3024457.

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3

Bradley, Dale. "Planning for wildlife: an urban planning and design exploration to support Mexican free-tailed bats." Kansas State University, 2015. http://hdl.handle.net/2097/19046.

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Master of Landscape Architecture<br>Landscape Architecture/Regional and Community Planning<br>Brent Chamberlain<br>Anthropocentric disturbances are often the main driver behind the population decline of wildlife species. Bat species are of particular concern recently with large declines in populations worldwide. The conservation of bat species relies on knowledge about the relationship between species-specific needs and the effect urban environments have on individual species. Mexican Free-Tailed Bats (MFTBs) are listed on the IUCN Red List and play an important role in many ecosystems within
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Ruina, Annemieke V. "Estimating the Population Size of Wrinkle-Lipped Free-Tailed Bats, Tadarida Plicata in Borneo Using Image Counting Techniques." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/scripps_theses/574.

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Bats are ecologically important around the world, partially because they eat insects. They are globally threatened by human activities. The extent of bat populations in South Asia has not been as well-monitored or researched as other parts of the world. Determining the size of a large colonial bat population is difficult, and can be aided through video footage or photographs. This study aimed to determine the population size of Tadarida plicata that inhabit the Gomantong Cave system in Borneo. Images of an evening emergence were used to determine the speed of flight, and then the number of bat
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López-Hoffman, Laura, Jay Diffendorfer, Ruscena Wiederholt, et al. "Operationalizing the telecoupling framework for migratory species using the spatial subsidies approach to examine ecosystem services provided by Mexican free-tailed bats." RESILIENCE ALLIANCE, 2017. http://hdl.handle.net/10150/626546.

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Drivers of environmental change in one location can have profound effects on ecosystem services and human well-being in distant locations, often across international borders. The telecoupling provides a conceptual framework for describing these interactions-for example, locations can be defined as sending areas (sources of flows of ecosystem services, energy, or information) or receiving areas (recipients of flows). However, the ability to quantify feedbacks between ecosystem change in one area and societal benefits in other areas requires analytical approaches. We use spatial subsidies-an app
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6

Salazar, Israel. "Vocal Flexibility and Regional Variation in Free-Tailed Bat Song." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2602.

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While much work has been done on regional vocal variation in birds, relatively few studies have found evidence of similar variation in mammalian vocalizations. This study quantifies individual, colonial, and regional level variation in T. brasiliensis songs in the southeastern United States. Brazilian free-tailed bats (Tadarida brasiliensis) are among a handful of mammals that produce complex, hierarchically structured vocalizations. Their songs are composed of multiple syllables that are combined into three phrases that vary in number and order across renditions. Tadarida brasiliensis songs s
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7

Hoosen, Nikhat. "Patterns of genetic variation in Mops leucostigma (Molossidae) from Madagascar and the Comoros." Thesis, 2008. http://hdl.handle.net/10413/8296.

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The synanthropic molossid bat, Mops leucostigma (Allen 1918), is widely distributed across Madagascar and has recently been described from the Comoros. M. leucostigma individuals from eastern Malagasy populations are markedly larger than those from the west, and Mops leucostigma populations from Madagascar are morphologically distinct from populations of its putative sister species, Mops condylurus from mainland Africa (Ratrimomanarivo et al. in press, Genetic diversity was assessed by sequencing the mitochondrial cytochrome b (n = 56) and displacement loop (D-loop) (n = 64) regions of Mops le
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8

Naidoo, Theshnie. "Genetic diversity of the Chaerephon leucogaster/pumilus complex from mainland Africa and the western Indian Ocean islands." Thesis, 2013. http://hdl.handle.net/10413/11174.

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Chaerephon (Dobson, 1874), an Old World genus belonging to the family Molossidae, is part of the suborder Vespertilioniformes. Members of this genus are distributed across mainland Africa (sample sites; Tanzania, Yemen, Kenya, Botswana, South Africa and Swaziland), its offshore islands (Zanzibar, Pemba and Mozambique Island), Madagascar and the surrounding western Indian Ocean islands (Anjouan, Mayotte, Moheli, Grande Comore, Aldabra and La Reunion). A multifaceted approach was used to elucidate the phylogenetic and population genetic relationships at varying levels amongst these different tax
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9

"Genetic analysis of Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa." Thesis, 2008. http://hdl.handle.net/10413/1017.

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Chaerephon pumilus, the little free-tailed bat, (family: Molossidae) has a distribution throughout most of sub-Saharan Africa and the eastern region of Madagascar. The vast geographical distribution of this species is accompanied by considerable phenotypic variation, which may conceal cryptic species. The cytochrome b (845 nucleotides) and D-loop (314 nucleotides) regions of the mitochondrial DNA were sequenced to assess phylogenetic relationships within C. pumilus (southern Africa) and in relation to Chaerephon species from Madagascar (C. pumilus, C. leucogaster). Samples were obtained from K
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10

Napier, Melanie Carmel. "Genetic variability of Chaerephon atsinanana (Chiroptera) within the context of the Afro-Malagasy Molossidae : a mitochondrial and nuclear perspective." Thesis, 2013. http://hdl.handle.net/10413/10063.

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This study has focused on genetic variability and structure in Chaerephon atsinanana, a newly-described molossid bat found in the mid to southern region of the eastern watershed of Madagascar. As these bats are strong fliers, and are able to traverse the riverine and mountain barriers within the landscape, it was hypothesized that they would show relatively low levels of intraspecific genetic structure, consistent with patterns shown for other Molossidae on Madagascar (Mormopterus jugularis, Mops midas, Mops leucostigma, and C. lecuogaster. Phylogenetic (neighbor-joining, parsimony and Bayesia
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11

Gillam, Erin H. "Behavioral and Ecological Influences on the Echolocation of Brazilian Free-Tailed Bats, Tadarida brasiliensis." 2007. http://etd.utk.edu/2007/GillamErin.pdf.

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12

Moir, Monika Ilka. "The habitat use, temporal distribution and preferred weather conditions of Tadarida aegyptiaca and Neoromicia capensis, and its application to wind farm development in South Africa." Thesis, 2014. http://hdl.handle.net/10210/12354.

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M.Sc. (Biodiversity and Conservation)<br>The relative activity levels of the Egyptian free-tailed bat (Tadarida aegyptiaca) and Cape serotine bat (Neoromicia capensis) were monitored in eight study areas spanning across the Eastern Cape, Western Cape and Northern Cape of South Africa. The detected activity levels were then used to study the habitat use and temporal distribution (across the night and months of monitoring period) of both species. The effect of weather conditions (namely temperature, relative humidity, wind speed, precipitation and barometric pressure), moon phase and moonlight o
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13

Kolli, Haritha. "Study of interaction between Mexican free tailed bats (Tadarida brasiliensis) and moths and counting moths in a real time video." 2007. http://etd.utk.edu/2007/KolliHaritha.pdf.

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Thesis (M.S.)--University of Tennessee, Knoxville, 2007.<br>Title from title page screen (viewed on June 9, 2008). Thesis advisors: Hairong Qi, Thomas G. Hallam. Vita. Includes bibliographical references.
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14

Raghavan, Aruna. "Modeling study of individual and group behavior of Brazilian free-tailed bats (Tadarida brasiliensis) and dynamic bat counting using real-time infrared thermal video." 2005. http://etd.utk.edu/2005/RaghavanAruna.pdf.

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Thesis (M.S.) -- University of Tennessee, Knoxville, 2005.<br>Title from title page screen (viewed on August 31, 2005). Thesis advisor: Hairong Qi. Thesis advisor: Thomas G. Hallam. Document formatted into pages (ix, 89 p. : ill. (some col.). col. map). Vita. Includes bibliographical references (p. 84-88).
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15

McConville, Anna. "The ecology of the east-coast free-tailed bat (Mormopterus norfolkensis) in the Hunter region." Thesis, 2014. http://hdl.handle.net/1959.13/1042325.

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Research Doctorate - Doctor of Philosophy (PhD)<br>A detailed understanding of the ecology of threatened species is essential if we wish to develop effective conservation management strategies. Mormopterus norfolkensis (eastcoast free-tailed bat) is a threatened insectivorous bat species of which little is known. The aim of this thesis was to address knowledge gaps regarding key aspects of the ecology of M. norfolkensis, including habitat, roost selection and diet. Habitat use was investigated at multiple spatial scales, using three independent and systematically collected datasets. Overall, p
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