Richness, diversity and abundance of bats from a savanna landscape in central Brazil

Lima, Camila S.; Varzinczak, Luiz H.; Passos, Fernando C.

doi:10.1515/mammalia-2015-0106

Cited by 8 publications

(10 citation statements)

References 51 publications

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“…Tropical savannas are biodiversity hotspots (Myers, Mittermeier, Mittermeier, Fonseca, & Kent, ) known for their high bat diversity (Bernard & Fenton, ; Lim & Lee, ; Morales‐Martinez, Rodriguez‐Posada, Fernandez‐Rodriguez, Calderon‐Capote, & Gutierrez‐Sanabria, ). Forest formations (i.e., riparian forests or gallery forests, forest islands) within savannas are considered as key elements to maintain bat diversity in the landscape (Aguirre, ; Lima, Varzinczak, & Passos, ; Morales‐Martinez et al, ). Comparing savanna ecosystems with study systems like the one analyzed here provide insights regarding underlying ecological processes important to maintain diversity.…”

Section: Discussionmentioning

confidence: 99%

Do riparian forest strips in modified forest landscapes aid in conserving bat diversity?

Carrasco‐Rueda

Loiselle

2019

Ecology and Evolution

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Agricultural practices lead to losses of natural resources and biodiversity. Maintaining forests alongside streams (riparian forest strips) has been used as a mechanism to minimize the impact of clearing for agriculture on biodiversity. To test the contribution of riparian forest strips to conserve biodiversity in production landscapes, we selected bats as a biodiversity model system and examined two dimensions of diversity: taxonomic and functional. We compared bat diversity and composition in forest, with and without stream habitat, and in narrow forest riparian strips surrounded by areas cleared for agriculture. We tested the hypothesis that riparian forest strips provide potential conservation value by providing habitat and serving as movement corridors for forest bat species. Riparian forest strips maintained 75% of the bat species registered in forested habitats. We found assemblage in sites with riparian forest strips were dominated by a few species with high abundance and included several species with low abundance. Bat species assemblage was more similar between sites with streams than between those sites to forests without stream habitat. These results highlight the importance of stream habitat in predicting presence of bat species. We registered similar number of guilds between forest sites and riparian forest strips sites. Relative to matrix habitats, stream and edge habitats in riparian forest strips sites were functionally more diverse, supporting our hypothesis about the potential conservation value of riparian forest strips. Results from this study suggest that maintaining riparian forest strips within cleared areas for agricultural areas helps conserve the taxonomic and functional diversity of bats. Also, it provides basic data to evaluate the efficacy of maintaining these landscape features for mitigating impacts of agricultural development on biodiversity. However, we caution that riparian forest strips alone are not sufficient for biodiversity maintenance; their value depends on maintenance of larger forest areas in their vicinity.

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Section: Discussionmentioning

confidence: 99%

Do riparian forest strips in modified forest landscapes aid in conserving bat diversity?

Carrasco‐Rueda

Loiselle

2019

Ecology and Evolution

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“…The percentage of Phyllostominae and non-Phyllostomid bat species is shown. For the savannas of the Brazilian Cerrado, the presence of water courses and the complex vertical structure of riparian forests have been found to be key for the maintenance and conservation of bat diversity, serving as biological corridors and providing shelter, food and water (Redford and Fonseca 1986;Lima et. al.…”

Section: Discussionmentioning

confidence: 99%

Spatial variation of bat diversity between three floodplain-savanna ecosystems of the Colombian Llanos

Morales-Martínez

Rodríguez-Posada

Fernández-Rodríguez

et al. 2018

Therya

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The ecology of bat assemblages in savanna ecosystems is poorly known. Studies on this subject are scarce in the Colombian Orinoquía; some authors have argued that this region shows a low diversity of bat species relative to other natural regions of Colombia, which contrasts with reports for other Neotropical savannas. In order to broaden the knowledge about bat assemblages in savanna ecosystems in Colombia, we evaluated the alpha (local) and beta (species turnover) diversities in three savanna ecosystems located in Colombian alluvial flood plains of Orinoco Llanos , as compared to other natural regions of Colombia. We sampled bat assemblages across three alluvial floodplain savannas: E1) Mosaic of floodplain savannas and floodplain forests covering less than 20 % of the original area. E2) Dense high forest growing on the flood plains of Whitewater Andean rivers. E3) Aeolian savannas. Mist nets were used in the understory in all cases. We evaluated the representativeness of samples using the Jackknife 1 estimator. The species richness found was compared with the one reported in representative inventories of other natural regions of Colombia. Differences in alpha diversity between the three ecosystems studied were explored by comparing rankabundance curves and three true-diversity values (q0, q1 and q2). Finally, we evaluated the species turnover across ecosystems using the Jaccard similarity index. A total of 50 bat species were recorded at the regional level, and between 32 and 39 species in each of the ecosystems, representing a greater or similar richness vs other natural regions of Colombia. Sampling representativeness was higher than 80 %. Although no differences were observed in terms of species richness (q0) between localities, differences were evident in the structure of assemblages (q1, q2). Finally, the species turnover between localities was high, with similarity values between 57 % and 64 %. The species richness recorded in the assemblages studied here is similar to that reported for bat assemblages in other natural regions of Colombia, where a higher diversity has been presumed. The differences observed in the structure of abundances of the assemblages studied here may be associated with ecosystem heterogeneity in the Llanos region, characterized by different types of vegetation structure in the various types of forest. In addition, there may be a negative effect of the degree of transformation of natural ecosystems on bat richness and diversity. On the other hand, the high degree of bat species turnover may stem from differences in the composition and structure of riparian forests coupled with the strong seasonality of precipitation in the region, as reported for other Neotropical savannas.La ecología de los ensamblajes de murciélagos en ecosistemas de sabana es poco conocida. Para el caso de la Orinoquia colombiana los estudios son escasos; sin embargo, algunos autores han afirmado que esta región presenta una baja diversidad de murciélagos respecto a otras regiones naturales de Colombia, lo cual e...

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“…No Brasil, foi registrada em todos os domínios fitogeográficos, exceto em Campos Sulinos (Marinho-Filho & Sazima, 1998;Gardner, 2007). Na BAP, foi registrada no planalto, nas regiões de Cuiabá e do Paraguai (E. Gonçalves & Gregorin, 2004;Lima et al, 2017), e na planície do Pantanal, nas regiões de Aquidauana, Miranda, Nhecolândia, Piquiri e Cuiabá (E. Fischer et al, 2015;M. Oliveira, 2016).…”

Section: Gênero Rhynchonycteris Peters 1867unclassified

“…Fischer et al, 2015;Barbier & Graciolli, 2016;Silveira, 2016;M. Oliveira, 2016;Lima et al, 2017;Bordignon & Shapiro, 2018;N. Carvalho, 2017;Silveira et al, 2020;C.…”

Section: Lophostoma Silvicolum D'orbigny 1836 (Figura 32)unclassified

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Morcegos da Bacia do Alto Paraguai: revisão da fauna e distribuição de registros

et al. 2022

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A Bacia do Alto Paraguai (BAP) inclui a planície inundável do Pantanal e as áreas altas no entorno que drenam para o rio Paraguai, uma região de transição entre quatro grandes domínios fitofisionômicos da América do Sul – Cerrado, Chaco, Amazônia e Mata Atlântica. A fauna da região é pobre em endemismos, porém as posições central e transicional no continente conferem enorme riqueza de animais vertebrados, oriundos de diferentes domínios, especialmente quanto à ordem Chiroptera. Aqui, revisamos as espécies de morcegos registradas na BAP e apresentamos mapas de distribuição e breve descrição de cada espécie, incluindo dados de tamanho, forma, cor, ambientes, abrigos, hábito alimentar e interações com predadores e parasitas. Encontramos registro de 93 espécies em sete famílias – Emballonuridae (3), Noctilionidae (2), Mormoopidae (2), Phyllostomidae (51), Natalidae (1), Molossidae (20) e Vespertilionidae (14). Foram registradas 66 espécies na planície e 84 no entorno; com 59 espécies reportadas na planície e no entorno. Quase dois terços das espécies (63%) foram registrados em cinco ou mais localidades na BAP, e um quinto (19%) em apenas uma localidade. A fauna de morcegos da BAP destaca a grande importância dessa região para a manutenção da diversidade de morcegos na América do Sul.

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Richness, diversity and abundance of bats from a savanna landscape in central Brazil

Cited by 8 publications

References 51 publications

Do riparian forest strips in modified forest landscapes aid in conserving bat diversity?

Do riparian forest strips in modified forest landscapes aid in conserving bat diversity?

Spatial variation of bat diversity between three floodplain-savanna ecosystems of the Colombian Llanos

Morcegos da Bacia do Alto Paraguai: revisão da fauna e distribuição de registros

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