Activity patterns of frugivorous phyllostomid bats in an urban fragment in southwest Amazonia, Brazil

Verde, Rair Sousa; Silva, Richarlly da Costa; Calouro, Armando Muniz

doi:10.1590/1678-4766e2018016

Cited by 23 publications

(23 citation statements)

References 32 publications

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“…El conocimiento acerca de la ecología de murciélagos en la Amazonía, es aún escaso, sin embargo, en la actualidad se observa un aumento en estudios relacionados con los efectos de la fragmentación y el impacto de la regeneración del bosque en comunidades de murciélagos del Amazonas (Rocha et al, 2017;Farneda et al, 2018;Verde, Silva, & Calouro, 2018), con lo cual se hace pertinente entender los patrones de actividad de las especies de este taxón debido a la importancia que cumplen en el mantenimiento de los ecosistemas, siendo controladores de insectos, polinizadores y dispersores de un gran número de semillas (Kalko, Handley, & Handley, 1996;Galindo, 1998;Jones, Jacobs, Kunz, Willigs, & Racey, 2009). Los objetivos del presente estudio fueron: 1) evaluar si la temporada climática (lluviosa y seca) tiene influencia en la composición específica de un ensamblaje de murciélagos en el Amazonas brasileño.…”

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Actividad de un “ensamblaje” de murciélagos en el norte de Brasil (Mammalia: Chiroptera)

Durán¹,

Morales

2019

RBT

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La Amazonía es uno de los ecosistemas tropicales más biodiversos del mundo, característica atribuida a la complejidad estructural que le brinda la geología y la gran riqueza de sus suelos. Los murciélagos constituyen uno de los taxones de la clase Mammalia mejor representados en esta región, aun así, existen claros vacíos de conocimiento, principalmente, respecto a su ecología, con lo cual, en el presente estudio se pretende evaluar la influencia que tienen factores ambientales, como la temporada climática, temperatura (máxima y mínima), humedad relativa y porcentaje de fase iluminada de la Luna, en los patrones de actividad (riqueza, abundancia y gremios tróficos) de un ensamblaje de murciélagos en la Amazonía central brasilera. El estudio fue llevado a cabo en dos municipios del estado de Rondônia, empleando ocho redes de niebla, durante 62 noches de muestreo, abarcando las temporadas lluviosa y seca. En total fueron capturados 2 499 individuos de 58 especies, la familia mejor representada fueron los Phyllostomidae, mientras que la especie que registró la mayor frecuencia de capturas fue Carollia perspicillata (N = 859), seguida de C. brevicauda (N = 209). No se presentaron diferencias entre la estructura del ensamblaje considerando la temporada climática (lluviosa-seca), sin embargo, durante la temporada seca se registró un mayor número de especies e individuos (57 especies, N = 1 597), que en la temporada lluviosa (44 especies, N = 902). La abundancia de murciélagos estuvo influenciada principalmente, por la humedad relativa (P = 0.00) y la temperatura (mínima) (P = 0.04), mientras que, las especies respondieron diferencialmente al porcentaje de fase iluminada de la luna. En estos resultados se evidencia la influencia de factores ambientales en los patrones de actividad del ensamblaje de murciélagos en la Amazonía, en donde la ecología de las especies determina el tipo de influencia. Sin embargo, se requieren de estudios llevados a cabo por períodos más prolongados, para determinar si estos patrones se mantienen a lo largo del tiempo.

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Actividad de un “ensamblaje” de murciélagos en el norte de Brasil (Mammalia: Chiroptera)

Durán¹,

Morales

2019

RBT

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“…The climate, in particular temperature, but also rainfall, may also affect these patterns (Boyes and Perrin, 2010;Reyes-Arriagada et al, 2015). Similar variation is observed in bats (Speakman et al, 2000;Thies et al, 2006), which are predominantly nocturnal (Presley et al, 2009, Verde et al, 2018. In the Amazon region, for example, bats are active primarily during the first hours of the night, with activity then declining progressively until shortly before dawn, when foraging increases once again, in a bimodal pattern (Bernard and Fenton, 2002;Presley et al, 2009;Verde et al, 2018).…”

Section: Introductionmentioning

confidence: 61%

“…In the bats, the nocturnal activity recorded up to midnight also presented what appeared to be a bimodal pattern, with one peak at the beginning of the night, and the other, near midnight (Figure 1). Other studies in the Amazon region have shown that bat activity tends to peak at the beginning and end of the night (Bernard and Fenton, 2002;Verde et al, 2018), when the whole nocturnal period is monitored. Capture rates may also be influenced by other factors, such as the type of habitat (Lövei et al, 2001), climatic conditions (Thies et al, 2006), and even the avoidance of moonlight (Mello et al, 2013), in the specific case of non-insectivorous bats, for these that foraging just after the sunset is adaptive (Appel et al, 2017).…”

Section: Discussionmentioning

confidence: 98%

“…One disadvantage of the use of mist-nets is that, after a certain time in the same location, both birds and bats appear to be able to learn the location of the nets and avoid them (Esbérard, 2006;Marques et al, 2013). Even so, mist-nets are considered to be relatively effective for the inventory of both groups of vertebrates (Bernard, 2001;Johnson et al, 2011), as well as the monitoring of activity patterns (Trnka et al, 2006;Verde et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Birds and bats captured in a managed forest in Southwestern Brazilian Amazonia: Results and recommendations from a short-term study

Pedroza¹,

Verde²,

Guilherme³

2019

Braz. J. Biol. Sci.

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Understanding the activity pattern and the height of capture of birds and bats can help to optimize the sampling of both groups. Our aimed was to determine the rates of capture at different times of day/night, and the overlap in the height of capture; classify the trophic guilds, and check variation in the capture rates of the birds and bats. We conducted the study in the Antimary State Forest, in March, 2017. We set mist-nets at the same location during five consecutive days, and were open between 06:00 h and 00:00 h. The birds presented a bimodal activity pattern, as well as bats. Bats were captured at higher levels than birds. Most of the birds captured were insectivores, where as most of the bats were frugivores. Neither group presented a clear pattern of variation in capture rates. Therefore, the first hours of the morning are fundamental for the capture of birds. For bats, we would recommend the captures only after 17:00 h. Mist-nets should be set at ground level for birds, whereas for bats, they should be set above a height of 0.5 m. Thus, the captures should be optimized.

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“…An example is the dominance of Carollia perspicillata (Linnaeus, 1758) (n = 50), a species generally associated with anthropized areas. In addition to the species presenting a great ecological plasticity, its area of distribution encompasses a large part of the neotropical region [48,70,71], considered a common species in the Amazon [61,63].…”

Section: Discussionmentioning

confidence: 99%

The Effect of Land Use on the Richness and Composition of Species and Trophic Guilds of Bats (Mammalia, Chiroptera) in the Urban Area of Altamira – PA

Ll¹

2021

Preprint

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Bats play important ecosystem roles. Anthropogenic activities cause the decrease and loss of biological diversity and, consequently, the loss of these ecosystem services. One way of measuring local habitat conditions and relating the landscape to biodiversity. Our objective is to investigate how the bat community is influenced by this change in the landscape. Collections were carried out at five points and 76 individuals of 12 species are sampled. Although the points present a high variation in relation to land use, we did not observe any correlation between species richness and guilds with land use. However, the difference in the composition of the guilds is related to the variation in land use, in which 74% of the variation in the abundance of guilds is related to the different patterns of land use. At SENAI, even though it was the place with the greatest anthropic impact, it was the one with the greatest abundance of species, while the points Module two and Sítio Jaburu had the greatest abundance of guilds. This result corroborates the idea that ecosystem services are dependent on habitat maintenance, since the greater the heterogeneity the greater the difference in the composition of the trophic guilds.

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Activity patterns of frugivorous phyllostomid bats in an urban fragment in southwest Amazonia, Brazil

Cited by 23 publications

References 32 publications

Actividad de un “ensamblaje” de murciélagos en el norte de Brasil (Mammalia: Chiroptera)

Actividad de un “ensamblaje” de murciélagos en el norte de Brasil (Mammalia: Chiroptera)

Birds and bats captured in a managed forest in Southwestern Brazilian Amazonia: Results and recommendations from a short-term study

The Effect of Land Use on the Richness and Composition of Species and Trophic Guilds of Bats (Mammalia, Chiroptera) in the Urban Area of Altamira – PA

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