Activity of the insectivorous bat<i>Pteronotus parnellii</i>relative to insect resources and vegetation structure

Oliveira, Leonardo Queiroz de; Marciente, Rodrigo; Magnusson, William E.; Bobrowiec, Paulo Estefano Dineli

doi:10.1093/jmammal/gyv108

Cited by 42 publications

(39 citation statements)

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“…3 has not been found 280 (e.g. Appel et al 2017, de Oliveira et al 2015. This suggests that although sympatry is found 281 between the species, microhabitat segregation or specific requirements might also occur among …”

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confidence: 99%

Geographical variation in the high-duty cycle echolocation of the cryptic common mustached batPteronotuscf.rubiginosus(Mormoopidae)

et al. 2017

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27The use of bioacoustics as a tool for bat research is rapidly increasing worldwide. There is 28 substantial evidence that environmental factors such as weather conditions or habitat structure can 29 affect echolocation call structure in bats and thus compromise proper species identification. 30However, intraspecific differences in echolocation due to geographical variation are poorly 31 understood, which poses a number of issues in terms of method standardization. We examined 32 acoustic data for Pteronotus cf. rubiginosus from the Central Amazon and the Guiana Shield. We

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confidence: 99%

Geographical variation in the high-duty cycle echolocation of the cryptic common mustached batPteronotuscf.rubiginosus(Mormoopidae)

et al. 2017

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“…Small forest streams can be considered as clearings because they have more open vegetation (Oliveira et al . ). As gleaning animalivores avoid open areas and forest edges (Meyer & Kalko ), it is possible that this guild also avoids foraging along streams where the canopy is more open.…”

Section: Discussionmentioning

confidence: 99%

“…() to measure vegetation clutter, with the modifications proposed by Oliveira et al . (). We took digital photographs of a 3 × 3 m white cloth panel placed at intervals of 10 m along a 250 m stretch of the central line of the plot ( N = 25 vegetation photographs per plot).…”

Section: Methodsmentioning

confidence: 97%

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Subtle changes in elevation shift bat‐assemblage structure in Central Amazonia

Capaverde

Pereira

Tavares³

et al. 2018

Biotropica

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The distribution patterns of animal species at local scales have been explained by direct influences of vegetation structure, topography, food distribution, and availability. However, these variables can also interact and operate indirectly on the distribution of species. Here, we examined the direct and indirect effects of food availability (fruits and insects), vegetation clutter, and elevation in structuring phyllostomid bat assemblages in a continuous terra firme forest in Central Amazonia. Bats were captured in 49 plots over 25‐km² of continuous forest. We captured 1138 bats belonging to 52 species with 7056 net*hours of effort. Terrain elevation was the strongest predictor of species and guild compositions, and of bat abundance. However, changes in elevation were associated with changes in vegetation clutter, and availability of fruits and insects consumed by bats, which are likely to have had direct effects on bat assemblages. Frugivorous bat composition was more influenced by availability of food‐providing plants, while gleaning‐animalivore composition was more influenced by the structural complexity of the vegetation. Although probably not causal, terrain elevation may be a reliable predictor of bat‐assemblage structure at local scales in other regions. In situations where it is not possible to collect local variables, terrain elevation can substitute other variables, such as vegetation structure, and availability of fruits and insects.

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Micronucleus Test Reveals Genotoxic Effects in Bats Associated with Agricultural Activity

Sandoval-Herrera

Castillo

et al. 2020

Enviro Toxic and Chemistry

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Bats play a vital role in our ecosystems and economies as natural pest‐control agents, seed dispersers, and pollinators. Agricultural intensification, however, can impact bats foraging near crops, affecting the ecosystem services they provide. Exposure to pesticides, for example, may induce chromosome breakage or missegregation that can result in micronucleus formation. Detection of micronuclei is a simple, inexpensive, and relatively minimally invasive technique commonly used to evaluate chemical genotoxicity but rarely applied to assess wildlife genotoxic effects. We evaluated the suitability of the micronucleus test as a biomarker of genotoxicity for biomonitoring field studies in bats. We collected blood samples from insectivorous bats roosting in caves surrounded by different levels of disturbance (agriculture, human settlements) in Colima and Jalisco, west central Mexico. Then, we examined the frequency of micronucleus inclusions in erythrocytes using differentially stained blood smears. Bats from caves surrounded by proportionately more (53%) land used for agriculture and irrigated year‐round had higher micronucleus frequency than bats from a less disturbed site (15% agriculture). We conclude that the micronucleus test is a sensitive method to evaluate genotoxic effects in free‐ranging bats and could provide a useful biomarker for evaluating risk of exposure in wild populations. Environ Toxicol Chem 2021;40:202–207. © 2020 SETAC

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Activity of the insectivorous batPteronotus parnelliirelative to insect resources and vegetation structure

Cited by 42 publications

References 43 publications

Geographical variation in the high-duty cycle echolocation of the cryptic common mustached batPteronotuscf.rubiginosus(Mormoopidae)

Geographical variation in the high-duty cycle echolocation of the cryptic common mustached batPteronotuscf.rubiginosus(Mormoopidae)

Subtle changes in elevation shift bat‐assemblage structure in Central Amazonia

Micronucleus Test Reveals Genotoxic Effects in Bats Associated with Agricultural Activity

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