Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities

Abstract Despite their diversity and abundance, the importance of native, forest bee communities to pollination services and inherent biological diversity conservation is often overlooked. We studied forest bee communities in Delaware and Pennsylvania, USA, to better understand how forest bee commun...

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Main Authors: Andrew P. Landsman, Zachary S. Ladin, David Gardner, Jacob L. Bowman, Greg Shriver, Vince D'Amico, Deborah A. Delaney
Format: Article
Language:English
Published: Wiley 2019-10-01
Series:Ecosphere
Subjects:
Online Access:https://doi.org/10.1002/ecs2.2908
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author Andrew P. Landsman
Zachary S. Ladin
David Gardner
Jacob L. Bowman
Greg Shriver
Vince D'Amico
Deborah A. Delaney
author_facet Andrew P. Landsman
Zachary S. Ladin
David Gardner
Jacob L. Bowman
Greg Shriver
Vince D'Amico
Deborah A. Delaney
author_sort Andrew P. Landsman
collection DOAJ
description Abstract Despite their diversity and abundance, the importance of native, forest bee communities to pollination services and inherent biological diversity conservation is often overlooked. We studied forest bee communities in Delaware and Pennsylvania, USA, to better understand how forest bee community structure varies with changing land use and microhabitat quality among small, urban and suburban forest fragments in the mid‐Atlantic United States. Our hypotheses were that (1) microhabitat quality would affect relative abundance of bee taxa, (2) surrounding landscape composition would drive local patch colonization–extinction dynamics, and (3) forest patch size would not affect community structure and composition. We found a lack of spatial autocorrelation among forest patches, indicating the importance of individual fragments in the autonomous generation and/or maintenance of bee communities. Community analyses revealed the importance of both landscape context and microhabitat quality in defining forest bee communities. By partitioning beta diversity into its constituent components, we also found that landscape composition drove changes in the relative abundance of taxa, while both landscape and microhabitat characteristics significantly influenced species turnover. Neither landscape composition nor quality of the microhabitat influenced initial site occupancy or colonization–extinction dynamics. Bisected by highways, suburban neighborhoods, agricultural lands, and urban development, many urban and suburban forest patches in the eastern United States are similar in composition to our study sites. As many native forest bees have limited capacity for long‐range movement between forest patches, these remaining forest fragments are critical to the conservation of unique and speciose forest bee communities.
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spelling doaj.art-51d2ab641dd54dc29ccdf90e49f063682022-12-21T18:48:25ZengWileyEcosphere2150-89252019-10-011010n/an/a10.1002/ecs2.2908Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communitiesAndrew P. Landsman0Zachary S. Ladin1David Gardner2Jacob L. Bowman3Greg Shriver4Vince D'Amico5Deborah A. Delaney6Department of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USADepartment of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USADepartment of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USADepartment of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USADepartment of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USAUnited States Department of Agriculture Forest Service Newark Delaware 19716 USADepartment of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USAAbstract Despite their diversity and abundance, the importance of native, forest bee communities to pollination services and inherent biological diversity conservation is often overlooked. We studied forest bee communities in Delaware and Pennsylvania, USA, to better understand how forest bee community structure varies with changing land use and microhabitat quality among small, urban and suburban forest fragments in the mid‐Atlantic United States. Our hypotheses were that (1) microhabitat quality would affect relative abundance of bee taxa, (2) surrounding landscape composition would drive local patch colonization–extinction dynamics, and (3) forest patch size would not affect community structure and composition. We found a lack of spatial autocorrelation among forest patches, indicating the importance of individual fragments in the autonomous generation and/or maintenance of bee communities. Community analyses revealed the importance of both landscape context and microhabitat quality in defining forest bee communities. By partitioning beta diversity into its constituent components, we also found that landscape composition drove changes in the relative abundance of taxa, while both landscape and microhabitat characteristics significantly influenced species turnover. Neither landscape composition nor quality of the microhabitat influenced initial site occupancy or colonization–extinction dynamics. Bisected by highways, suburban neighborhoods, agricultural lands, and urban development, many urban and suburban forest patches in the eastern United States are similar in composition to our study sites. As many native forest bees have limited capacity for long‐range movement between forest patches, these remaining forest fragments are critical to the conservation of unique and speciose forest bee communities.https://doi.org/10.1002/ecs2.2908Anthophilabeesbeta diversitycommunityoccupancyurban ecosystem
spellingShingle Andrew P. Landsman
Zachary S. Ladin
David Gardner
Jacob L. Bowman
Greg Shriver
Vince D'Amico
Deborah A. Delaney
Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
Ecosphere
Anthophila
bees
beta diversity
community
occupancy
urban ecosystem
title Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
title_full Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
title_fullStr Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
title_full_unstemmed Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
title_short Local landscapes and microhabitat characteristics are important determinants of urban–suburban forest bee communities
title_sort local landscapes and microhabitat characteristics are important determinants of urban suburban forest bee communities
topic Anthophila
bees
beta diversity
community
occupancy
urban ecosystem
url https://doi.org/10.1002/ecs2.2908
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