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Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan

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Published on: August 27, 2019

Resource Ephemerality Drives Social Foraging in Bats.

Katya Egert-Berg¹, Edward R Hurme², Stefan Greif³

¹Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel.

Current Biology : CB

|November 6, 2018

Summary

Resource predictability shapes animal social foraging. Bats foraging on unpredictable food sources aggregated, while those on predictable resources foraged alone, revealing how food availability influences social behavior.

Keywords:

GPS bat behavioral ecology echolocation foraging movement ecology navigation sociobiology

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Area of Science:

Behavioral Ecology
Animal Communication

Background:

Interpreting animal aggregations as social foraging is complex.
Distinguishing collective search, leader following, or resource attraction is crucial for understanding costs and benefits.

Purpose of the Study:

To investigate the role of food distribution in shaping social foraging patterns in bats.
To test if resource unpredictability favors social foraging.

Main Methods:

Utilized miniature sensors to record GPS tracks and audio of five bat species.
Analyzed movement patterns and conspecific interactions inferred from audio.
Employed playback experiments and computer simulations to support findings.

Main Results:

Bats foraging on ephemeral resources exhibited varied nightly movements and aggregated.
Bats foraging on predictable resources showed high site fidelity and avoided conspecifics.
Social interactions differed significantly based on resource predictability.

Conclusions:

Resource unpredictability is a key driver of social foraging in bats.
The costs and benefits of social foraging are influenced by food distribution patterns.
Findings provide insights into the evolution of social behavior in response to ecological factors.