Diurnal Flying Activity of a Neotropical Bat (Saccopteryx leptura): Effect of Light Intensity, Temperature, and Canopy Cover

Vivas-Toro, Isabela; Murillo‐García, Oscar E.

doi:10.3161/15081109acc2020.22.1.008

Cited by 2 publications

(3 citation statements)

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“…We collected fecal samples from roosts between 8:00 and 15:00 h. We collected fresh scats which were no more than four hours old; that is, of a soft consistency; a moist, dark color; and recognizable odor. We consider the foraging territory of bats in roosts, who was recorded in a previous study (Vivas-Toro and Murillo-García 2020), to define what type of canopy cover the samples belonged to. We captured bats between 17:00 and 19:00 h using a hand net and kept them in individual cloth bags until they defecated.…”

Section: Methodsmentioning

confidence: 99%

“…Frequent daytime activity of insectivorous bats is unusual (Russo et al 2011a). Except for the early forager Pipistrellus pygmaeus from central Italy (Russo et al 2011a), to date, all species reported exhibiting this behavior reside on islands (Bradbury and Emmons 1974;Moore 1975;Russo et al 2011a;Russo et al 2011b;Chua and Aziz 2019;Vivas-Toro and Murillo-García 2020). Among the common patterns displayed by these bats during the day are the tendency to feed mainly in closed canopy sites with abundant insect prey, and a decreasing activity with increasing light intensity (Speakman 1995;Russo et al 2011a;Russo et al 2011b;Chua and Aziz 2019;Vivas-Toro and Murillo-García 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Except for the early forager Pipistrellus pygmaeus from central Italy (Russo et al 2011a), to date, all species reported exhibiting this behavior reside on islands (Bradbury and Emmons 1974;Moore 1975;Russo et al 2011a;Russo et al 2011b;Chua and Aziz 2019;Vivas-Toro and Murillo-García 2020). Among the common patterns displayed by these bats during the day are the tendency to feed mainly in closed canopy sites with abundant insect prey, and a decreasing activity with increasing light intensity (Speakman 1995;Russo et al 2011a;Russo et al 2011b;Chua and Aziz 2019;Vivas-Toro and Murillo-García 2020). There is no detailed information on the selection of prey during the day in most species of bats that exhibit these habits, however, P. pygmaeus tends to feed on insect swarms when available, particularly nematocerans flies, and on the most abundant taxa, such as brachycerans (Russo et al 2011b).…”

Section: Introductionmentioning

confidence: 99%

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Daytime diet of the lesser sac-winged bat (Saccopteryx leptura) in a Colombian Pacific Island

Vivas-Toro

Mendivil-Nieto

2022

Therya

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Insectivorous bats represent more than half of all the Chiropterans of the world. Although they are important stabilizers of insect populations within their habitat due to their feeding habits, just few studies have been focused on the diet of insular bat species. The lesser sac-winged bat, Saccopteryx leptura, is widely distributed in the new world tropics, but little is known about its prey selection. In this study we determined the diet composition of the population of S. leptura from Gorgona Island, Colombia, using stomach and intestinal content samples. We focused our research on their atypical daytime feeding behavior to evaluate differences in prey selection considering two main factors: 1) plant canopy cover and 2) bat sex. We found prey representatives of nine orders of insects, with Hymenoptera, Coleoptera and Hemiptera as the most consumed according to their abundance and volume percentage. We identified two new records at genus level in S. leptura´s diet, Camponotus (Formicidae) and Trigona (Apidae). In general terms, we did not find differences in the diet between canopy covers nor sexes. However, when analyzing the consumed percentage volume by order, there were significant differences in consumption of Psocoptera in both factors. Our results suggest that S. leptura has an opportunistic diet, as they tend to feed on prey of a wide range of sizes, usually the most abundant and available in the environment.

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Section: Methodsmentioning

confidence: 99%