What question did this study set out to answer?

This study investigates how increased temperatures affect provisioning behavior and body temperature in tree swallows, focusing on gender differences.

February 27, 2026

Effects of Partner Workload and Increasing Environmental Temperature on Nestling Provisioning and Body Temperature in a Declining Aerial Insectivore.

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Authors

MHMegan HeftTrent University BHBronwen HennigarTrent University GBGary BurnessTrent University

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Implication

Experimental study shows thermal environment impacts nestling provisioning rates in tree swallows, indicating sex-specific responses to heat.

Key Points

This study investigates how increased temperatures affect provisioning behavior and body temperature in tree swallows, focusing on gender differences.
Conducted experiments by trimming ventral feathers of male tree swallows to create heat-dissipating 'thermal windows'.
Monitored provisioning rates and core body temperatures of male and female tree swallows in varying temperatures.
Measuring responses to high environmental temperatures while varying parental workload between sexes.
Males reduced nestling provisioning rates at high temperatures regardless of feather trimming treatment.
Trimmed males maintained core body temperatures similar to untrimmed controls.
Females adjusted their activity levels in response to their male partners, indicating potential costs to females.

Cite This Study

Heft et al. (2026) studied this question.

synapsesocial.com/papers/69a1353eed1d949a99abee7d https://doi.org/10.1002/jez.70075

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Implication

Experimental study shows thermal environment impacts nestling provisioning rates in tree swallows, indicating sex-specific responses to heat.

Effects of Partner Workload and Increasing Environmental Temperature on Nestling Provisioning and Body Temperature in a Declining Aerial Insectivore.

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Implication

Key Points

Cite This Study

Effects of Partner Workload and Increasing Environmental Temperature on Nestling Provisioning and Body Temperature in a Declining Aerial Insectivore.

Discussion

Member takes

Implication

Key Points

Cite This Study

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