Academic literature on the topic 'Nocturnal flying insects'

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Journal articles on the topic "Nocturnal flying insects"

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NOWINSZKY, L. "NOCTURNAL ILLUMINATION AND NIGHT FLYING INSECTS." Applied Ecology and Environmental Research 2, no. 1 (July 1, 2004): 17–52. http://dx.doi.org/10.15666/aeer/02017052.

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Straka, Tanja M., Pia E. Lentini, Linda F. Lumsden, Sascha Buchholz, Brendan A. Wintle, and Rodney van der Ree. "Clean and Green Urban Water Bodies Benefit Nocturnal Flying Insects and Their Predators, Insectivorous Bats." Sustainability 12, no. 7 (March 26, 2020): 2634. http://dx.doi.org/10.3390/su12072634.

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Nocturnal arthropods form the prey base for many predators and are an integral part of complex food webs. However, there is limited understanding of the mechanisms influencing invertebrates at urban water bodies and the potential flow-on effects to their predators. This study aims to: (i) understand the importance of standing water bodies for nocturnal flying insect orders, including the landscape- and local-scale factors driving these patterns; and (ii) quantify the relationship between insects and insectivorous bats. We investigated nocturnal flying insects and insectivorous bats simultaneously at water bodies (n = 58) and non-water body sites (n = 35) using light traps and acoustic recorders in Melbourne, Australia. At the landscape scale, we found that the presence of water and high levels of surrounding greenness were important predictors for some insect orders. At the water body scale, low levels of sediment pollutants, increased riparian tree cover and water body size supported higher insect order richness and a greater abundance of Coleopterans and Trichopterans, respectively. Most bat species had a positive response to a high abundance of Lepidopterans, confirming the importance of this order in the diet of insectivorous bats. Fostering communities of nocturnal insects in urban environments can provide opportunities for enhancing the prey base of urban nocturnal insectivores.
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Baird, Emily, Eva Kreiss, William Wcislo, Eric Warrant, and Marie Dacke. "Nocturnal insects use optic flow for flight control." Biology Letters 7, no. 4 (February 9, 2011): 499–501. http://dx.doi.org/10.1098/rsbl.2010.1205.

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To avoid collisions when navigating through cluttered environments, flying insects must control their flight so that their sensory systems have time to detect obstacles and avoid them. To do this, day-active insects rely primarily on the pattern of apparent motion generated on the retina during flight (optic flow). However, many flying insects are active at night, when obtaining reliable visual information for flight control presents much more of a challenge. To assess whether nocturnal flying insects also rely on optic flow cues to control flight in dim light, we recorded flights of the nocturnal neotropical sweat bee, Megalopta genalis , flying along an experimental tunnel when: (i) the visual texture on each wall generated strong horizontal (front-to-back) optic flow cues, (ii) the texture on only one wall generated these cues, and (iii) horizontal optic flow cues were removed from both walls. We find that Megalopta increase their groundspeed when horizontal motion cues in the tunnel are reduced (conditions (ii) and (iii)). However, differences in the amount of horizontal optic flow on each wall of the tunnel (condition (ii)) do not affect the centred position of the bee within the flight tunnel. To better understand the behavioural response of Megalopta , we repeated the experiments on day-active bumble-bees ( Bombus terrestris ). Overall, our findings demonstrate that despite the limitations imposed by dim light, Megalopta —like their day-active relatives—rely heavily on vision to control flight, but that they use visual cues in a different manner from diurnal insects.
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Bhardwaj, Manisha, Kylie Soanes, José J. Lahoz-Monfort, Linda F. Lumsden, and Rodney van der Ree. "Little evidence of a road-effect zone for nocturnal, flying insects." Ecology and Evolution 9, no. 1 (December 27, 2018): 65–72. http://dx.doi.org/10.1002/ece3.4609.

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Salazar, Juan Esteban, Daniel Severin, Tomas Vega-Zuniga, Pedro Fernández-Aburto, Alfonso Deichler, Michel Sallaberry A., and Jorge Mpodozis. "Anatomical Specializations Related to Foraging in the Visual System of a Nocturnal Insectivorous Bird, the Band-Winged Nightjar (Aves: Caprimulgiformes)." Brain, Behavior and Evolution 94, Suppl. 1-4 (2019): 27–36. http://dx.doi.org/10.1159/000504162.

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Nocturnal animals that rely on their visual system for foraging, mating, and navigation usually exhibit specific traits associated with living in scotopic conditions. Most nocturnal birds have several visual specializations, such as enlarged eyes and an increased orbital convergence. However, the actual role of binocular vision in nocturnal foraging is still debated. Nightjars (Aves: Caprimulgidae) are predators that actively pursue and capture flying insects in crepuscular and nocturnal environments, mainly using a conspicuous “sit-and-wait” tactic on which pursuit begins with an insect flying over the bird that sits on the ground. In this study, we describe the visual system of the band-winged nightjar (Systellura longirostris), with emphasis on anatomical features previously described as relevant for nocturnal birds. Orbit convergence, determined by 3D scanning of the skull, was 73.28°. The visual field, determined by ophthalmoscopic reflex, exhibits an area of maximum binocular overlap of 42°, and it is dorsally oriented. The eyes showed a nocturnal-like normalized corneal aperture/axial length index. Retinal ganglion cells (RGCs) were relatively scant, and distributed in an unusual oblique-band pattern, with higher concentrations in the ventrotemporal quadrant. Together, these results indicate that the band-winged nightjar exhibits a retinal specialization associated with the binocular area of their dorsal visual field, a relevant area for pursuit triggering and prey attacks. The RGC distribution observed is unusual among birds, but similar to that of some visually dependent insectivorous bats, suggesting that those features might be convergent in relation to feeding strategies.
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Ober, Holly K., and John P. Hayes. "Influence of forest riparian vegetation on abundance and biomass of nocturnal flying insects." Forest Ecology and Management 256, no. 5 (August 2008): 1124–32. http://dx.doi.org/10.1016/j.foreco.2008.06.010.

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Cutler, G. Christopher, Kevin W. Reeh, Jason M. Sproule, and Krilen Ramanaidu. "Berry unexpected: Nocturnal pollination of lowbush blueberry." Canadian Journal of Plant Science 92, no. 4 (July 2012): 707–11. http://dx.doi.org/10.4141/cjps2012-026.

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Cutler, C. G., Reeh, K. W., Sproule, J. M. and Ramanaidu, K. 2012. Berry unexpected: Nocturnal pollination of lowbush blueberry. Can. J. Plant Sci. 92: 707–711. Lowbush blueberry, Vaccinium angustifolium, is an economically important crop of eastern North America that is critically dependent on insect-mediated cross-pollination for successful fruit set and high yields. It is generally assumed that bees are responsible for the vast majority of lowbush blueberry pollination, and producers usually augment the natural pollination force with managed bees. Little is known, however, of the potential role of nocturnal pollinators in lowbush blueberry production. We conducted a field experiment where patches of blooming blueberry were exposed to flying insects 24 h a day, only during the day (sunrise to sunset), only at night (sunset to sunrise), or 0 h a day. We found that significant fruit set occurred on blueberry stems that were exposed only at night, although it was higher on stems exposed during the day or 24 h a day. However, ripe fruit produced on stems exposed only at night weighed just as much as those exposed 24 h. Captures with Malaise traps activated only at night consisted mainly of several families of Lepidoptera and Diptera, although we do not know if these taxa pollinated blueberries. We conclude that nocturnal pollination may contribute significantly to lowbush blueberry fruit set.
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van Grunsven, Roy H. A., Julia Becker, Stephanie Peter, Stefan Heller, and Franz Hölker. "Long-Term Comparison of Attraction of Flying Insects to Streetlights after the Transition from Traditional Light Sources to Light-Emitting Diodes in Urban and Peri-Urban Settings." Sustainability 11, no. 22 (November 6, 2019): 6198. http://dx.doi.org/10.3390/su11226198.

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Among the different light sources used for street lighting, light-emitting diodes (LEDs) are likely to dominate the world market in the coming years. At the same time, the spectral composition of nocturnal illumination is changing. Europe and many other areas worldwide have implemented bans on energy-inefficient lamps, such as the still very common mercury vapor lamps. However, the impact of artificial light on insects is mostly tested with light-traps or flight-intercept traps that are used for short periods only. By comparing the numbers of insects attracted by street lamps before and after replacing mercury vapor light sources (MV) with light emitting diodes, we assessed the impact in more typical (urban and peri-urban) settings over several years. We found that LED attracted approximately half of the number of insects compared to MV lights. Furthermore, most insect groups are less drawn by LED than by MV, while Hymenoptera are less attracted by MV than by LED. Thus, the composition of the attracted communities differed between the light sources, which may impact ecosystem processes and functions. In green peri-urban settings more insects are attracted than in an urban setting, but the relative difference between the light sources is the same.
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Fenton, M. B., D. Audet, M. K. Obrist, and J. Rydell. "Signal strength, timing, and self-deafening: the evolution of echolocation in bats." Paleobiology 21, no. 2 (1995): 229–42. http://dx.doi.org/10.1017/s0094837300013221.

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We propose that the ancestors of bats were small, nocturnal, sylvatic gliders that used echolocation for general orientation. Their echolocation calls were short, low intensity, broadband clicks, which translated into a very short operational range. In the lineage that gave rise to bats, a switch to stronger, tonal signals permitted the use of echolocation to detect, track, and assess flying insects in subcanopy settings. We propose that these animals hunted from perches and used echolocation to detect, track, and assess flying insects, which they attacked while gliding. In this way, the perfection of echolocation for hunting preceded the appearance of flapping flight, which marked the emergence of bats. Flapping flight had appeared by the Eocene when at least eight families are known from the fossil record. Stronger signals and adaptations to minimize self-deafening were central to the perfection of echolocation for locating flying prey. Echolocation constituted a key innovation that permitted the evolution and radiation of bats. At the same time, however, its short effective range imposed a major constraint on the size of bats. This constraint is associated with flight speed and the very small time intervals from detection of, and contact with a flying target. Gleaning and high duty cycle echolocation are two derived approaches to hunting prey in cluttered situations, places where echoes from background and other objects arrive before or at the same time as echoes from prey. Both had appeared by the Eocene.
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Ruczyński, Ireneusz, Zuzanna Hałat, Marcin Zegarek, Tomasz Borowik, and Dina K. N. Dechmann. "Camera transects as a method to monitor high temporal and spatial ephemerality of flying nocturnal insects." Methods in Ecology and Evolution 11, no. 2 (December 26, 2019): 294–302. http://dx.doi.org/10.1111/2041-210x.13339.

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Dissertations / Theses on the topic "Nocturnal flying insects"

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Pretorius, Estherna. "Determining the diversity of nocturnal flying insects of the grassland in the Krugersdorp Nature Reserve." Thesis, 2012. http://hdl.handle.net/10210/4685.

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M.Sc.
The grassland biome of South Africa harbours rich ecosystem diversity. Some of the distinctive features of grassland biodiversity in South Africa include globally significant centres of plant endemism, half of the country's endemic mammal species, a third of its endangered butterfly species and 10 of 14 of its globally threatened bird species. Grassland is one of the most inadequately maintained biomes in Southern Africa because 23% is under cultivation, 60% is irreversibly transformed and most of the remaining natural area is used as rangeland for livestock. Only 2% of the grassland biome is currently protected. Grasslands provide essential ecosystem services for economic development, but this biome also supports a large human population whose resource demands have serious environmental implications that threaten the grasslands‘ biodiversity. Urbanisation is possibly one of the major immediate threats to the grassland ecology in South Africa. This is also the case in the Cradle of Humankind World Heritage Site (COHWHS) and adjacent areas. New housing complexes and informal housing are encroaching on the COHWHS. Indigenous fauna and flora are being affected by ecologically insensitive urban development. This poses a major threat to the fauna of this region including the insects that occur in grassland habitats. The insects play a vital role as pollinators in grassland habitats and form an essential food source to a range of predators, including grass owls, shrews, bull frogs, lizards and bats. In order to conserve the insects and therefore the food web of which they form part, it is necessary to understand the diversity of the insects in the grassland in the dolomitic areas. The COHWHS is a world renowned heritage site devoted to the origin of humankind and is characterised by dolomitic caves. These caves are also the home of a large population of bats consisting of several species. The negative impact on the grasslands in the COHWHS and surroundings pose a threat to the survival of these bat populations if the food source they depend on is negatively affected. For this reason it is important to determine which flying nocturnal insect species are available in the grasslands surrounding bat roosts in the COHWHS and surroundings. 3 The choice of location for the primary trap site was made on the basis of its proximity to known bat roosts and the fact that it is situated in a nature reserve that, although the river is polluted, contains an otherwise relatively unspoilt grassland habitat. Sampling took place over a period of 14 months during which fluctuations in the insect population was observed. The fluctuations can be ascribed to seasonal climate changes and the three veld fires that occurred during this period. This fluctuation was most evident in the representatives of the Orders Lepidoptera and Coleoptera sampled.
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Maas, Bea. "Birds, bats and arthropods in tropical agroforestry landscapes: Functional diversity, multitrophic interactions and crop yield." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E77-5.

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Book chapters on the topic "Nocturnal flying insects"

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Fallon, Katie. "Nighthawks." In When Birds Are Near, 5–7. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501750915.003.0002.

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This chapter details how the author saw nighthawks while bird-watching in Lake Perez in Stone Valley. Nighthawks and their relatives — whip-poor-wills, oilbirds, frogmouths, pauraques, and nightjars — are odd, secretive, mostly crepuscular or nocturnal birds. On the wing, a common nighthawk is acrobatic and incredibly sleek. In the hand, however, its wings seem too long, its body squat and strange. A nighthawk's tiny black beak hides an enormous mouth that resembles a bullfrog's when it opens. Because they eat and drink while flying, this oversized mouth is useful for trapping insects and skimming lake water. The ancient Greeks and Romans believed that these unusual birds used their huge mouths for another purpose: drinking milk from the teats of goats and sheep under the cover of night. According to the lore, a goat suckled by a nightjar met an unfortunate end — blindness and then death. Of course, the birds do not engage in this behavior, but the belief earned their family the name Caprimulgidae, or “goatsucker.”
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