Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity

Burrowing mammals can be ecosystem engineers by increasing soil aeration and erosion and altering the structure of plant communities. Studies that characterize the constraints on the distributions of fossorial mammal disturbances to soil can help predict changes in ecosystem engineering under future...

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Main Authors: Joshua S. Lynn, Samuel Canfield, Ross R. Conover, Jeremy Keene, Jennifer A. Rudgers
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Arctic, Antarctic, and Alpine Research
Subjects:
Online Access:http://dx.doi.org/10.1080/15230430.2018.1487659
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author Joshua S. Lynn
Samuel Canfield
Ross R. Conover
Jeremy Keene
Jennifer A. Rudgers
author_facet Joshua S. Lynn
Samuel Canfield
Ross R. Conover
Jeremy Keene
Jennifer A. Rudgers
author_sort Joshua S. Lynn
collection DOAJ
description Burrowing mammals can be ecosystem engineers by increasing soil aeration and erosion and altering the structure of plant communities. Studies that characterize the constraints on the distributions of fossorial mammal disturbances to soil can help predict changes in ecosystem engineering under future climates. We quantified the density of soil disturbances caused by Thomomys talpoides (northern pocket gopher) over replicate elevation gradients spanning 2,700–4,000 m a.s.l. in the Upper Gunnison Basin, Colorado, USA. As a conceptual framework for predicting biogeographic variation in soil disturbance, we used the abundant center hypothesis (ACH), which proposes that species abundance declines monotonically away from the most abundant location in its distribution, with the assumption that ecosystem engineering scales with gopher abundance. We also evaluated the relative importance of abiotic and biotic variables as correlates of soil disturbance. Gopher disturbance peaked at mid elevations (~3,150 m), supporting the ACH. The best model for predicting gopher-caused soil disturbance contained both abiotic and biotic variables, with increased soil disturbance where mean annual temperature, forb cover, and plant diversity were greatest. Results suggest that mountain ecosystems may experience increases in gopher-caused soil disturbance as climate warms, possibly accompanied by increases in plant diversity and forb cover.
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spelling doaj.art-d843bbba544f4dcab1cd26be6e6905932022-12-21T20:19:58ZengTaylor & Francis GroupArctic, Antarctic, and Alpine Research1523-04301938-42462018-01-0150110.1080/15230430.2018.14876591487659Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversityJoshua S. Lynn0Samuel Canfield1Ross R. Conover2Jeremy Keene3Jennifer A. Rudgers4Rocky Mountain Biological LaboratoryRocky Mountain Biological LaboratoryRocky Mountain Biological LaboratoryGlenville State CollegeRocky Mountain Biological LaboratoryBurrowing mammals can be ecosystem engineers by increasing soil aeration and erosion and altering the structure of plant communities. Studies that characterize the constraints on the distributions of fossorial mammal disturbances to soil can help predict changes in ecosystem engineering under future climates. We quantified the density of soil disturbances caused by Thomomys talpoides (northern pocket gopher) over replicate elevation gradients spanning 2,700–4,000 m a.s.l. in the Upper Gunnison Basin, Colorado, USA. As a conceptual framework for predicting biogeographic variation in soil disturbance, we used the abundant center hypothesis (ACH), which proposes that species abundance declines monotonically away from the most abundant location in its distribution, with the assumption that ecosystem engineering scales with gopher abundance. We also evaluated the relative importance of abiotic and biotic variables as correlates of soil disturbance. Gopher disturbance peaked at mid elevations (~3,150 m), supporting the ACH. The best model for predicting gopher-caused soil disturbance contained both abiotic and biotic variables, with increased soil disturbance where mean annual temperature, forb cover, and plant diversity were greatest. Results suggest that mountain ecosystems may experience increases in gopher-caused soil disturbance as climate warms, possibly accompanied by increases in plant diversity and forb cover.http://dx.doi.org/10.1080/15230430.2018.1487659alpinesubalpineclimate changecolorado rocky mountainsniche/distribution modeling
spellingShingle Joshua S. Lynn
Samuel Canfield
Ross R. Conover
Jeremy Keene
Jennifer A. Rudgers
Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
Arctic, Antarctic, and Alpine Research
alpine
subalpine
climate change
colorado rocky mountains
niche/distribution modeling
title Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
title_full Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
title_fullStr Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
title_full_unstemmed Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
title_short Pocket gopher (Thomomys talpoides) soil disturbance peaks at mid-elevation and is associated with air temperature, forb cover, and plant diversity
title_sort pocket gopher thomomys talpoides soil disturbance peaks at mid elevation and is associated with air temperature forb cover and plant diversity
topic alpine
subalpine
climate change
colorado rocky mountains
niche/distribution modeling
url http://dx.doi.org/10.1080/15230430.2018.1487659
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