Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments

Fire suppression and other factors have drastically reduced wet prairie and pine savanna ecosystems on the Coastal Plain of the southeastern United States. Restoration of these open-canopy environments often targets one or several charismatic species, and semi-aquatic species such as burrowing crayf...

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Main Authors: Susan B. Adams, Scott G. Hereford, Chaz Hyseni
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/13/1854
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author Susan B. Adams
Scott G. Hereford
Chaz Hyseni
author_facet Susan B. Adams
Scott G. Hereford
Chaz Hyseni
author_sort Susan B. Adams
collection DOAJ
description Fire suppression and other factors have drastically reduced wet prairie and pine savanna ecosystems on the Coastal Plain of the southeastern United States. Restoration of these open-canopy environments often targets one or several charismatic species, and semi-aquatic species such as burrowing crayfishes are often overlooked in these essentially terrestrial environments. We examined the relationship between primary burrowing crayfishes and three vegetation treatments implemented over at least the past two decades in the Mississippi Sandhill Crane National Wildlife Refuge. Vegetation in the 12 study sites had been frequently burned, frequently mechanically treated, or infrequently managed. <i>Creaserinus</i> spp., primarily <i>C. oryktes</i>, dominated the crayfish assemblage in every site. We counted crayfish burrow openings and coarsely categorized vegetation characteristics in 90, 0.56-m<sup>2</sup> quadrats evenly distributed among six transects per site. The number of active burrow openings was negatively, exponentially related to both the percent cover of woody vegetation and the maximum height of woody vegetation in quadrats, and to the number of trees taller than 1.2 m per transect, indicating that woody plant encroachment was detrimental to the crayfishes. Results were consistent with several other studies from the eastern US, indicating that some primary burrowing crayfishes are habitat specialists adapted to open-canopy ecosystems.
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spelling doaj.art-e040a678edcb41e385866c231a6001f02023-11-22T02:55:19ZengMDPI AGWater2073-44412021-07-011313185410.3390/w13131854Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation TreatmentsSusan B. Adams0Scott G. Hereford1Chaz Hyseni2USDA Forest Service, Southern Research Station, Center for Bottomland Hardwoods Research, 1000 Front St., Oxford, MS 38655, USAUS Fish and Wildlife Service, Mississippi Sandhill Crane National Wildlife Refuge, 7200 Crane Lane, Gautier, MS 39553, USADepartment of Ecology and Genetics, Animal Ecology, Uppsala University, Norbyvägen 18D, SE-75236 Uppsala, SwedenFire suppression and other factors have drastically reduced wet prairie and pine savanna ecosystems on the Coastal Plain of the southeastern United States. Restoration of these open-canopy environments often targets one or several charismatic species, and semi-aquatic species such as burrowing crayfishes are often overlooked in these essentially terrestrial environments. We examined the relationship between primary burrowing crayfishes and three vegetation treatments implemented over at least the past two decades in the Mississippi Sandhill Crane National Wildlife Refuge. Vegetation in the 12 study sites had been frequently burned, frequently mechanically treated, or infrequently managed. <i>Creaserinus</i> spp., primarily <i>C. oryktes</i>, dominated the crayfish assemblage in every site. We counted crayfish burrow openings and coarsely categorized vegetation characteristics in 90, 0.56-m<sup>2</sup> quadrats evenly distributed among six transects per site. The number of active burrow openings was negatively, exponentially related to both the percent cover of woody vegetation and the maximum height of woody vegetation in quadrats, and to the number of trees taller than 1.2 m per transect, indicating that woody plant encroachment was detrimental to the crayfishes. Results were consistent with several other studies from the eastern US, indicating that some primary burrowing crayfishes are habitat specialists adapted to open-canopy ecosystems.https://www.mdpi.com/2073-4441/13/13/1854primary burrowing crayfishprescribed fireprairiewet pine savannahabitatvegetation management
spellingShingle Susan B. Adams
Scott G. Hereford
Chaz Hyseni
Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
Water
primary burrowing crayfish
prescribed fire
prairie
wet pine savanna
habitat
vegetation management
title Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
title_full Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
title_fullStr Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
title_full_unstemmed Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
title_short Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
title_sort burrow densities of primary burrowing crayfishes in relation to prescribed fire and mechanical vegetation treatments
topic primary burrowing crayfish
prescribed fire
prairie
wet pine savanna
habitat
vegetation management
url https://www.mdpi.com/2073-4441/13/13/1854
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