Arid
DOI10.1016/j.landurbplan.2010.09.002
Flooding-induced landscape changes along dendritic stream networks and implications for wildlife habitat
Perotto-Baldivieso, Humberto L.1; Wu, X. Ben1; Peterson, Markus J.2; Smeins, Fred E.1; Silvy, Nova J.2; Schwertner, T. Wayne3
通讯作者Perotto-Baldivieso, Humberto L.
来源期刊LANDSCAPE AND URBAN PLANNING
ISSN0169-2046
出版年2011
卷号99期号:2页码:115-122
英文摘要

Severe low frequency natural disturbances along stream networks can substantially alter urban and rural landscapes and impact habitat and population dynamics of wildlife species. In 1978, severe flooding along the North Prong of the Medina River significantly altered the habitat for the Rio Grande wild turkey and may have contributed to the decreased abundance of this species observed during recent decades in the southeastern Edwards Plateau, TX, USA. The objective of our study was to examine the changes in landscape structure caused by this flooding event and their potential impact on wild turkey habitat. Aerial photography from 1972, 1984, and 1995 was used to quantify habitat changes in riparian zones and adjacent bottomlands along the Medina River. We documented substantial reductions in habitat suitability and connectivity caused by the flooding, followed by a partial recovery over 17 years. Analysis using patch-level metrics in conjunction with class-level metrics, provided insights to the pattern and possible mechanisms of the landscape changes. Habitat along higher-order streams was most affected, reducing not only the suitable habitat locally, but also the habitat connectivity throughout the riparian network. This loss of connectivity rendered numerous habitat patches along lower-order streams unavailable to Rio Grande wild turkeys as this species depends on riparian corridors for dispersal and movement among habitat patches. Our results illustrate the critical importance of multiple-scale analysis based on hierarchical dendritic structures of river networks when assessing habitat changes and their impact on populations of terrestrial wildlife species dependent on riparian habitats in semi-arid landscapes. (C) 2010 Elsevier B.V. All rights reserved.


英文关键词Dendritic network Flooding disturbance Habitat fragmentation Landscape change Meleagris gallopavo intermedia Semi-arid landscapes
类型Article
语种英语
国家USA
收录类别SCI-E ; SSCI
WOS记录号WOS:000286541400006
WOS关键词PATCH SIZE ; MELEAGRIS-GALLOPAVO ; ECOLOGICAL NETWORKS ; CENTRAL MISSISSIPPI ; BIRD COMMUNITIES ; SPATIAL-PATTERN ; EDWARDS PLATEAU ; TURKEYS ; CONNECTIVITY ; FOREST
WOS类目Ecology ; Environmental Studies ; Geography ; Geography, Physical ; Regional & Urban Planning ; Urban Studies
WOS研究方向Environmental Sciences & Ecology ; Geography ; Physical Geography ; Public Administration ; Urban Studies
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169560
作者单位1.Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX 77843 USA;
2.Texas A&M Univ, Dept Wildlife & Fisheries Sci, College Stn, TX 77843 USA;
3.Texas Parks & Wildlife Dept, Mason, TX 76856 USA
推荐引用方式
GB/T 7714
Perotto-Baldivieso, Humberto L.,Wu, X. Ben,Peterson, Markus J.,et al. Flooding-induced landscape changes along dendritic stream networks and implications for wildlife habitat[J],2011,99(2):115-122.
APA Perotto-Baldivieso, Humberto L.,Wu, X. Ben,Peterson, Markus J.,Smeins, Fred E.,Silvy, Nova J.,&Schwertner, T. Wayne.(2011).Flooding-induced landscape changes along dendritic stream networks and implications for wildlife habitat.LANDSCAPE AND URBAN PLANNING,99(2),115-122.
MLA Perotto-Baldivieso, Humberto L.,et al."Flooding-induced landscape changes along dendritic stream networks and implications for wildlife habitat".LANDSCAPE AND URBAN PLANNING 99.2(2011):115-122.
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