Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0006-3207 |
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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