Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/267836 |
Resumo: | The Pampa is the least protected and one of the least sampled for bats among the Brazilian domains. This leads to significant Linnean and Wallacean shortfalls for bats in the Brazilian-Uruguayan savanna ecoregion. Here, we aimed to model the occupancy of aerial insectivorous bats in response to landscape structure at different scales, considering the influence of microclimate on bat detection. We acoustically monitored 68 locations during the spring and summer of 2019/2020, gathering data on temperature and humidity associated with each acoustic record using data loggers. We detected at least 11 species of the Molossidae and the Vespertilionidae families, of which 9 were used in the model. The response to landscape structure was species-specific: the occupancy probability of Eptesicus brasiliensis and Molossus cf. currentium increased with landscape connectivity at the 500 m scale while Eptesicus furinalis and Histiotus cf. velatus were negatively affected by landscape connectivity at the 5.0 km scale. Molossus occupancy probability responded negatively to landscape heterogeneity at the 3.0 km scale, while Promops centralis responded positively to landscape heterogeneity at the 5.0 km scale. Molossus rufus responded negatively to native vegetation cover and positively to landscape heterogeneity at the 5.0 km scale. Myotis albescens and Molossops temminckii did not respond significantly to any of the evaluated landscape metrics. Our results show that different bat species perceive the landscape differently, regardless of the guild of use of space – edge- or open-space forager. Our estimate of projected occupancy for the areas contiguous to those sampled ranged from 0.45 to 0.70 for the whole of the bat taxa, suggesting that the landscape, particularly where it still maintains its native elements, is reasonably favourable to aerial insectivores. |
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Costa, Cintia Fernanda daPereira, Maria João Veloso da Costa Ramos2023-11-30T03:23:58Z20222296-701Xhttp://hdl.handle.net/10183/267836001177542The Pampa is the least protected and one of the least sampled for bats among the Brazilian domains. This leads to significant Linnean and Wallacean shortfalls for bats in the Brazilian-Uruguayan savanna ecoregion. Here, we aimed to model the occupancy of aerial insectivorous bats in response to landscape structure at different scales, considering the influence of microclimate on bat detection. We acoustically monitored 68 locations during the spring and summer of 2019/2020, gathering data on temperature and humidity associated with each acoustic record using data loggers. We detected at least 11 species of the Molossidae and the Vespertilionidae families, of which 9 were used in the model. The response to landscape structure was species-specific: the occupancy probability of Eptesicus brasiliensis and Molossus cf. currentium increased with landscape connectivity at the 500 m scale while Eptesicus furinalis and Histiotus cf. velatus were negatively affected by landscape connectivity at the 5.0 km scale. Molossus occupancy probability responded negatively to landscape heterogeneity at the 3.0 km scale, while Promops centralis responded positively to landscape heterogeneity at the 5.0 km scale. Molossus rufus responded negatively to native vegetation cover and positively to landscape heterogeneity at the 5.0 km scale. Myotis albescens and Molossops temminckii did not respond significantly to any of the evaluated landscape metrics. Our results show that different bat species perceive the landscape differently, regardless of the guild of use of space – edge- or open-space forager. Our estimate of projected occupancy for the areas contiguous to those sampled ranged from 0.45 to 0.70 for the whole of the bat taxa, suggesting that the landscape, particularly where it still maintains its native elements, is reasonably favourable to aerial insectivores.application/pdfengFrontiers in Ecology and Evolution. Lausanne. Vol. 10 (Sept. 2022), 937139, 16 p.Monitoramento acústicoQuirópterosMorcegos insetívorosMicroclimaAcoustic monitoringChiropteraLandscape structureMicroclimateSite occupancyAerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detectionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001177542.pdf.txt001177542.pdf.txtExtracted Texttext/plain0http://www.lume.ufrgs.br/bitstream/10183/267836/2/001177542.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD52ORIGINAL001177542.pdfTexto completo (inglês)application/pdf9839740http://www.lume.ufrgs.br/bitstream/10183/267836/1/001177542.pdfb814fc2382ec7979a6b723aff7213dc9MD5110183/2678362023-12-06 04:25:05.754588oai:www.lume.ufrgs.br:10183/267836Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-06T06:25:05Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
title |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
spellingShingle |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection Costa, Cintia Fernanda da Monitoramento acústico Quirópteros Morcegos insetívoros Microclima Acoustic monitoring Chiroptera Landscape structure Microclimate Site occupancy |
title_short |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
title_full |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
title_fullStr |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
title_full_unstemmed |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
title_sort |
Aerial insectivorous bats in the Brazilian-Uruguayan savanna : modelling the occupancy through acoustic detection |
author |
Costa, Cintia Fernanda da |
author_facet |
Costa, Cintia Fernanda da Pereira, Maria João Veloso da Costa Ramos |
author_role |
author |
author2 |
Pereira, Maria João Veloso da Costa Ramos |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Costa, Cintia Fernanda da Pereira, Maria João Veloso da Costa Ramos |
dc.subject.por.fl_str_mv |
Monitoramento acústico Quirópteros Morcegos insetívoros Microclima |
topic |
Monitoramento acústico Quirópteros Morcegos insetívoros Microclima Acoustic monitoring Chiroptera Landscape structure Microclimate Site occupancy |
dc.subject.eng.fl_str_mv |
Acoustic monitoring Chiroptera Landscape structure Microclimate Site occupancy |
description |
The Pampa is the least protected and one of the least sampled for bats among the Brazilian domains. This leads to significant Linnean and Wallacean shortfalls for bats in the Brazilian-Uruguayan savanna ecoregion. Here, we aimed to model the occupancy of aerial insectivorous bats in response to landscape structure at different scales, considering the influence of microclimate on bat detection. We acoustically monitored 68 locations during the spring and summer of 2019/2020, gathering data on temperature and humidity associated with each acoustic record using data loggers. We detected at least 11 species of the Molossidae and the Vespertilionidae families, of which 9 were used in the model. The response to landscape structure was species-specific: the occupancy probability of Eptesicus brasiliensis and Molossus cf. currentium increased with landscape connectivity at the 500 m scale while Eptesicus furinalis and Histiotus cf. velatus were negatively affected by landscape connectivity at the 5.0 km scale. Molossus occupancy probability responded negatively to landscape heterogeneity at the 3.0 km scale, while Promops centralis responded positively to landscape heterogeneity at the 5.0 km scale. Molossus rufus responded negatively to native vegetation cover and positively to landscape heterogeneity at the 5.0 km scale. Myotis albescens and Molossops temminckii did not respond significantly to any of the evaluated landscape metrics. Our results show that different bat species perceive the landscape differently, regardless of the guild of use of space – edge- or open-space forager. Our estimate of projected occupancy for the areas contiguous to those sampled ranged from 0.45 to 0.70 for the whole of the bat taxa, suggesting that the landscape, particularly where it still maintains its native elements, is reasonably favourable to aerial insectivores. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022 |
dc.date.accessioned.fl_str_mv |
2023-11-30T03:23:58Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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http://hdl.handle.net/10183/267836 |
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2296-701X |
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001177542 |
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2296-701X 001177542 |
url |
http://hdl.handle.net/10183/267836 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Frontiers in Ecology and Evolution. Lausanne. Vol. 10 (Sept. 2022), 937139, 16 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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