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Comparison of direct, indirect, and ecosystem engineering effects of an earthworm on the red-backed salamander.

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Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
07:41

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Published on: July 30, 2019

Earthworms, as ecosystem engineers, influence multiple aspects of a salamander's ecology.

Tami S Ransom1

  • 1Department of Biology, University of Virginia, Charlottesville, VA 22904-4328, USA. tsr6a@virginia.edu

Oecologia
|September 18, 2010
PubMed
Summary
This summary is machine-generated.

Woodland salamanders (Plethodon cinereus) use earthworm burrows for refuge, improving winter survival and predator avoidance. This highlights the importance of earthworm burrows as a key habitat link in forest ecosystems.

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Design and Construction of an Experimental Setup to Enhance Mineral Weathering through the Activity of Soil Organisms
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Design and Construction of an Experimental Setup to Enhance Mineral Weathering through the Activity of Soil Organisms

Published on: November 10, 2023

Area of Science:

  • Ecology
  • Animal Behavior
  • Soil Science

Background:

  • Ecosystem engineers create habitats influencing other species.
  • Earthworms are key soil ecosystem engineers, modifying habitat structure.
  • Salamanders rely on microhabitats for survival and resource acquisition.

Purpose of the Study:

  • To determine if salamanders utilize earthworm burrows.
  • To investigate the impact of earthworm burrow use on salamander competition, predator avoidance, and seasonal performance.
  • To assess the role of earthworm burrows as a belowground-aboveground linkage.

Main Methods:

  • Enclosure experiments were conducted to observe salamander behavior.
  • Experiments involved varying the presence of earthworms and other salamander species.
  • Salamander survival, behavior, and mass were monitored under different conditions.

Main Results:

  • Plethodon cinereus used earthworm burrows 50% of the time; P. glutinosus did not.
  • Earthworm presence reduced intraspecific competition effects on P. cinereus behavior.
  • Earthworm burrows provided refuge, increasing P. cinereus winter survival and predator avoidance.

Conclusions:

  • Earthworm burrows serve as crucial refuges for P. cinereus, mitigating intraspecific competition and predation.
  • Earthworm burrow utilization by P. cinereus enhances survival and performance.
  • Earthworm burrows represent a significant belowground-aboveground ecological connection in forest ecosystems.