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DOI10.1016/j.biocon.2011.06.001
Linking resource use with demography in a synanthropic population of common ravens
Webb, William C.1; Marzluff, John M.1; Hepinstall-Cymerman, Jeff2
通讯作者Webb, William C.
来源期刊BIOLOGICAL CONSERVATION
ISSN0006-3207
出版年2011
卷号144期号:9页码:2264-2273
英文摘要

A thorough understanding of a population’s ecology requires knowledge of the relationship between habitat use, resource use and demographic parameters. We undertook an empirical investigation of habitat use, resource use and demography in a population of common ravens (Corvus corax), a species widely distributed throughout the Northern Hemisphere. The abundance of ravens is increasing in many parts of western North America, which represents a conservation concern since predation by ravens is thought to contribute to the decline of several sensitive species. We defined resources as the suite of physical and biological components in the environment that led to occupancy of a particular place by ravens. The home ranges of breeding and nonbreeding ravens contained similar proportions of resources, but breeding ravens used more edges, roads, forest, clearcuts, and towns than nonbreeders. We detected no differences in survival between the sexes, but breeding ravens survived at higher rates than nonbreeders, due to exclusion by breeding ravens from those resources positively associated with survival. Raven use of mature forests and anthropogenic land use types was positively associated with survival. Breeding raven use of clearcuts and patchy areas contributed to increased reproduction, but the use of clearcuts along with the use of roads was negatively associated with survival due to illegal shooting. Greater insight into the demography of synanthropic species such as the common raven will enable managers to make informed decisions for protecting biodiversity. This study is the first to consider the demographic consequences of habitat use and resource use for both nonbreeding and breeding common ravens. (C) 2011 Elsevier Ltd. All rights reserved.


英文关键词Demography Habitat use Resource use Survival Reproduction Common raven
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000294030900017
WOS关键词HOME-RANGE ; REPRODUCTIVE EFFORT ; HABITAT SELECTION ; MARKED ANIMALS ; MOJAVE DESERT ; LANDSCAPE ; SURVIVAL ; ECOLOGY ; NICHE ; SEX
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167373
作者单位1.Univ Washington, Coll Environm, Seattle, WA 98195 USA;
2.Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA
推荐引用方式
GB/T 7714
Webb, William C.,Marzluff, John M.,Hepinstall-Cymerman, Jeff. Linking resource use with demography in a synanthropic population of common ravens[J],2011,144(9):2264-2273.
APA Webb, William C.,Marzluff, John M.,&Hepinstall-Cymerman, Jeff.(2011).Linking resource use with demography in a synanthropic population of common ravens.BIOLOGICAL CONSERVATION,144(9),2264-2273.
MLA Webb, William C.,et al."Linking resource use with demography in a synanthropic population of common ravens".BIOLOGICAL CONSERVATION 144.9(2011):2264-2273.
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