Richness of insectivorous bats in a chaparral area in the municipality of Tecate, Baja California, Mexico

León-Tapia, M. Ángel; Hortelano-Moncada, Yolanda

doi:10.1016/j.rmb.2016.07.005

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Bats also differ in the height at which they fly above traps, which are typically set 1-4 m above ground level, and thus avoid them. Leon-Tapia and Hortelano-Moncada (2016) reported that in their study in Mexico, 12 species of bats were detected by using ultrasonic detectors, whereas only 5 species were trapped. Furthermore, trapping inevitably disturbs a bat's natural activity.…”

Section: Introductionmentioning

confidence: 99%

Passive acoustic monitoring and automated analysis as an alternative to trapping for monitoring species richness and seasonal swarming behaviour of Myotis bats

Thomas

Davison²

2020

Preprint

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1. Bat abundance, diversity and behaviour can be monitored by capturing bats for identification and measurement in the hand, but this has several disadvantages. These include disturbance to the bats, which limits the frequency with which captures can be made at an individual capture site, and potentially alters the behaviours being studied. 2. Passive recording and automated analysis and identification of bat calls offers an alternative, non-invasive approach to monitoring bats. In this study, we examine the effectiveness of acoustic monitoring in comparison with capture-based monitoring of seasonal swarming behaviour among several species of Myotis bats in southern Britain. 3. We show that both approaches have advantages and disadvantages for different tasks, but can be viewed as complementary methods for addressing different types of research questions. 4. We applied these complementary approaches, together with observations from infra-red video monitoring, to describe seasonal, overnight and species-specific variation in swarming behaviour in a multi-species community of Myotis bats. 5. In our study of swarming behaviour, capture and examination of bats in the hand was necessary for measuring sex ratios, reproductive status, and even for confirmation of species identification for some difficult to separate taxa. Capture is also an essential aspect of tagging bats for individual identification and tracking studies. 6. Passive acoustic monitoring is a valuable non-invasive method for continuous monitoring of within-night, seasonal and between-year variation in the abundance of bat calls. These can be used as an index of variation in relative abundance within -but not between -bat species.

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Section: Introductionmentioning

confidence: 99%

Passive acoustic monitoring and automated analysis as an alternative to trapping for monitoring species richness and seasonal swarming behaviour of Myotis bats

Thomas

Davison²

2020

Preprint

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show abstract

“…As a result, trapping of bats is not necessarily a good measure of the absolute numbers or number of species present (MacSwiney et al, 2008). For example, Leon‐Tapia and Hortelano‐Moncada (2016) reported that in their study in Mexico, 12 species of bats were detected by using ultrasonic detectors, whereas only five species were trapped.…”

Section: Introductionmentioning

confidence: 99%

Seasonal swarming behavior of Myotis bats revealed by integrated monitoring, involving passive acoustic monitoring with automated analysis, trapping, and video monitoring

Thomas

Davison

2022

Ecology and Evolution

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Bat abundance, diversity, and behavior can be monitored by capturing bats for identification and measurement in the hand, but this has several disadvantages. These include disturbance to the bats, which limits the frequency with which captures can be made at an individual capture site, and potentially alters the behaviors being studied. Infrared video monitoring, passive acoustic recording and automated analysis and identification of bat calls offers an alternative set of noninvasive methods for monitoring bats. In this study, we examine the effectiveness of acoustic monitoring in comparison with capture‐based and video monitoring of seasonal swarming behavior among several species of Myotis bats in southern Britain. We applied these complementary approaches to describe seasonal, overnight, and species‐specific variation in swarming behavior in a multispecies community of Myotis bats. We show that the three monitoring approaches have advantages and disadvantages for different tasks, but can be viewed as highly complementary methods for addressing different types of research questions. In our study of swarming behavior, capture and examination of bats in the hand was necessary for measuring sex ratios, reproductive status, and even for confirmation of species identification for some difficult to separate taxa. Capture is also an essential aspect of tagging bats for individual identification and tracking studies. Video monitoring is useful for understanding the behavior of bats at swarming sites, and measuring the flux of individuals into and out of roosting or swarming sites. Passive acoustic monitoring is a valuable noninvasive method for continuous monitoring of within‐night, seasonal, and between‐year variation in the abundance of bat calls. These can be used as an index of variation in relative abundance within—but not between—bat species.

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Una lista actualizada de los murciélagos de la región de Los Tuxtlas, Veracruz

Coates‐Estrada¹,

Ramírez-Lucho²,

Christen³

2017

Revista Mexicana de Biodiversidad

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Richness of insectivorous bats in a chaparral area in the municipality of Tecate, Baja California, Mexico

Cited by 4 publications

References 18 publications

Passive acoustic monitoring and automated analysis as an alternative to trapping for monitoring species richness and seasonal swarming behaviour of Myotis bats

Passive acoustic monitoring and automated analysis as an alternative to trapping for monitoring species richness and seasonal swarming behaviour of Myotis bats

Seasonal swarming behavior of Myotis bats revealed by integrated monitoring, involving passive acoustic monitoring with automated analysis, trapping, and video monitoring

Una lista actualizada de los murciélagos de la región de Los Tuxtlas, Veracruz

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