Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome

Abstract White‐nose syndrome (WNS) has caused dramatic declines of several cave‐hibernating bat species in North America since 2006, which has increased the activity of non‐susceptible species in some geographic areas or during times of night formerly occupied by susceptible species—indicative of di...

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Autores principales: Sara P. Bombaci, Robin E. Russell, Michael J. St. Germain, Christopher A. Dobony, W. Mark Ford, Susan C. Loeb, David S. Jachowski
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Publicado: Wiley 2021
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spelling oai:doaj.org-article:999ea1a7078e4b5f9031088c1d40051f2021-11-29T07:06:42ZContext dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome2150-892510.1002/ecs2.3825https://doaj.org/article/999ea1a7078e4b5f9031088c1d40051f2021-11-01T00:00:00Zhttps://doi.org/10.1002/ecs2.3825https://doaj.org/toc/2150-8925Abstract White‐nose syndrome (WNS) has caused dramatic declines of several cave‐hibernating bat species in North America since 2006, which has increased the activity of non‐susceptible species in some geographic areas or during times of night formerly occupied by susceptible species—indicative of disease‐mediated competitive release (DMCR). Yet, this pattern has not been evaluated across multiple bat assemblages simultaneously or across multiple years since WNS onset. We evaluated whether WNS altered spatial and temporal niche partitioning in bat assemblages at four locations in the eastern United States using long‐term datasets of bat acoustic activity collected before and after WNS arrival. Activity of WNS‐susceptible bat species decreased by 79–98% from pre‐WNS levels across the four study locations, but only one of our four study sites provided strong evidence supporting the DMCR hypothesis in bats post‐WNS. These results suggest that DMCR is likely dependent on the relative difference in activity by susceptible and non‐susceptible species groups pre‐WNS and the relative decline of susceptible species post‐WNS allowing for competitive release, as well as the amount of time that had elapsed post‐WNS. Our findings challenge the generality of WNS‐mediated competitive release between susceptible and non‐susceptible species and further highlight declining activity of some non‐susceptible species, especially Lasiurus borealis, across three of four locations in the eastern United States. These results underscore the broader need for conservation efforts to address the multiple potential interacting drivers of bat declines on both WNS‐susceptible and non‐susceptible species.Sara P. BombaciRobin E. RussellMichael J. St. GermainChristopher A. DobonyW. Mark FordSusan C. LoebDavid S. JachowskiWileyarticlebat communitiescompetitioncompetitive releasedisease ecologyniche partitioningNorth American batsEcologyQH540-549.5ENEcosphere, Vol 12, Iss 11, Pp n/a-n/a (2021)
institution DOAJ
collection DOAJ
language EN
topic bat communities
competition
competitive release
disease ecology
niche partitioning
North American bats
Ecology
QH540-549.5
spellingShingle bat communities
competition
competitive release
disease ecology
niche partitioning
North American bats
Ecology
QH540-549.5
Sara P. Bombaci
Robin E. Russell
Michael J. St. Germain
Christopher A. Dobony
W. Mark Ford
Susan C. Loeb
David S. Jachowski
Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
description Abstract White‐nose syndrome (WNS) has caused dramatic declines of several cave‐hibernating bat species in North America since 2006, which has increased the activity of non‐susceptible species in some geographic areas or during times of night formerly occupied by susceptible species—indicative of disease‐mediated competitive release (DMCR). Yet, this pattern has not been evaluated across multiple bat assemblages simultaneously or across multiple years since WNS onset. We evaluated whether WNS altered spatial and temporal niche partitioning in bat assemblages at four locations in the eastern United States using long‐term datasets of bat acoustic activity collected before and after WNS arrival. Activity of WNS‐susceptible bat species decreased by 79–98% from pre‐WNS levels across the four study locations, but only one of our four study sites provided strong evidence supporting the DMCR hypothesis in bats post‐WNS. These results suggest that DMCR is likely dependent on the relative difference in activity by susceptible and non‐susceptible species groups pre‐WNS and the relative decline of susceptible species post‐WNS allowing for competitive release, as well as the amount of time that had elapsed post‐WNS. Our findings challenge the generality of WNS‐mediated competitive release between susceptible and non‐susceptible species and further highlight declining activity of some non‐susceptible species, especially Lasiurus borealis, across three of four locations in the eastern United States. These results underscore the broader need for conservation efforts to address the multiple potential interacting drivers of bat declines on both WNS‐susceptible and non‐susceptible species.
format article
author Sara P. Bombaci
Robin E. Russell
Michael J. St. Germain
Christopher A. Dobony
W. Mark Ford
Susan C. Loeb
David S. Jachowski
author_facet Sara P. Bombaci
Robin E. Russell
Michael J. St. Germain
Christopher A. Dobony
W. Mark Ford
Susan C. Loeb
David S. Jachowski
author_sort Sara P. Bombaci
title Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
title_short Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
title_full Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
title_fullStr Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
title_full_unstemmed Context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
title_sort context dependency of disease‐mediated competitive release in bat assemblages following white‐nose syndrome
publisher Wiley
publishDate 2021
url https://doaj.org/article/999ea1a7078e4b5f9031088c1d40051f
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