Arid
DOI10.1016/j.biocon.2006.09.022
Rethinking a rare-species conservation strategy in an urban landscape: The case of the valley elderberry longhorn beetle
Talley, Theresa Sinicrope; Fleishman, Erica; Holyoak, Marcel; Murphy, Dennis D.; Ballard, Adam
通讯作者Talley, Theresa Sinicrope
来源期刊BIOLOGICAL CONSERVATION
ISSN0006-3207
出版年2007
卷号135期号:1页码:21-32
英文摘要

Reflecting the lack of critical information for most protected species, recovery plans for organisms listed as threatened or endangered under the U.S. Endangered Species Act tend to oversimplify habitat descriptions. Here we present our approach for improving the definition of habitat for rare and patchily distributed listed species. The valley elderberry longhorn beetle (Desmocerus californicus dimorphus) occurs in riparian and scrub communities in California’s Central Valley. Habitat quality for the species currently is defined essentially exclusively in terms of presence and abundance of its larval host plant, elderberry (Sambucus spp.). Using detailed measures of physical and biological attributes at diverse sites occupied by the beetle, we characterized and defined habitat quality on the basis of not only host plants, but on an array of biotic and abiotic environmental characteristics. We identified four geornorphically distinct habitat associations: alluvial plain, narrow riparian corridor, upper riparian plain, and non-riparian scrub. Depending on habitat type, the environmental characteristics most strongly associated with beetle presence were host plant availability, topography and proximity to habitat edge. Increased local population size of beetles was associated with higher elderberry density and the presence of larger, more mature plants. Stochasticity in site occupancy over space and time confounds our ability to identify sites that are most able to contribute to long-term beetle survival, while underscoring the importance of unoccupied habitat to the beetle. Adopting a multivariate definition of habitat may facilitate more effective identification of locations critical to the recovery of the valley elderberry longhorn beetle, and prioritization of those management actions that can contribute effectively to meeting conservation goals for the species. (c) 2006 Elsevier Ltd. All rights reserved.


英文关键词Central Valley habitat quantity habitat quality hierarchical partitioning insect host plant interaction metapopulation riparian threatened species recovery valley elderberry longhorn beetle
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000244770000003
WOS关键词RECOVERY PLANS ; ROADSIDE VEGETATION ; FRAGMENTATION ; CALIFORNIA ; ACT ; DESERT ; MODEL
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153660
作者单位(1)Univ Calif Davis, Dept Environm Sci & Policy, Davis, CA 95616 USA;(2)Stanford Univ, Ctr Conservat Biol, Dept Biol Sci, Stanford, CA 94305 USA;(3)Univ Nevada, Dept Biol, Reno, NV 89557 USA;(4)ECORP Consulting Inc, Rocklin, CA 95677 USA
推荐引用方式
GB/T 7714
Talley, Theresa Sinicrope,Fleishman, Erica,Holyoak, Marcel,et al. Rethinking a rare-species conservation strategy in an urban landscape: The case of the valley elderberry longhorn beetle[J]. University of California, Davis,2007,135(1):21-32.
APA Talley, Theresa Sinicrope,Fleishman, Erica,Holyoak, Marcel,Murphy, Dennis D.,&Ballard, Adam.(2007).Rethinking a rare-species conservation strategy in an urban landscape: The case of the valley elderberry longhorn beetle.BIOLOGICAL CONSERVATION,135(1),21-32.
MLA Talley, Theresa Sinicrope,et al."Rethinking a rare-species conservation strategy in an urban landscape: The case of the valley elderberry longhorn beetle".BIOLOGICAL CONSERVATION 135.1(2007):21-32.
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