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Related Experiment Video

Updated: May 15, 2025

Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences
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Temperature Variation Regulates the Trade-Off Between Pre- and Post-Hatching Investment in a Burying Beetle.

Donghui Ma1, Long Ma1,2, Jan Komdeur1

  • 1Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, 9712 CP Groningen, The Netherlands.

Insects
|May 7, 2025
PubMed
Summary

Parental care in burying beetles is affected by both carcass preparation and temperature. Higher temperatures and reduced preparation decrease parental investment and reproductive success, highlighting adaptation to climate change.

Keywords:
ambient temperatureburying beetlesclimate changelife history trade-offsparental investment

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Area of Science:

  • Ecology
  • Animal Behavior
  • Climate Change Biology

Background:

  • Organismal response to temperature variation is crucial for predicting resilience to climate change.
  • Parental investment strategies are key to understanding reproductive success in changing environments.

Purpose of the Study:

  • To investigate the interactive effects of parental investment in carcass preparation and ambient temperature on parental care and reproductive success in *Nicrophorus vespilloides*.
  • To determine how phenotypic plasticity in reproductive strategies aids adaptation to climate change.

Main Methods:

  • A 3x2 factorial experiment manipulated parental investment (Reduced, Control, Elevated) and ambient temperature (20°C, 23°C) in breeding burying beetle pairs.
  • Observed parental care behaviors (pre- and post-hatching) and measured reproductive success (egg count, brood weight).

Main Results:

  • Males in the reduced investment group decreased pre-hatching care regardless of temperature.
  • Both sexes reduced post-hatching care under higher temperatures across all investment groups.
  • Reproductive success was interactively influenced by carcass preparation and temperature; harsh temperatures and reduced preparation decreased success, while elevated preparation also led to smaller, lighter broods.

Conclusions:

  • Parental investment and temperature are critical factors influencing reproductive outcomes in burying beetles.
  • Burying beetles exhibit phenotypic plasticity in parental care strategies to cope with environmental changes, particularly temperature fluctuations.
  • Findings offer insights into animal adaptation mechanisms in the context of global climate change.