Arid
DOI10.3398/064.073.0217
CATCHING LARGE GROUPS OF RAVENS: A NOTE ON PROCEDURES USING ROCKET NETS
Camp, Richard J.1,4; Hagan, Mark2; Boarman, William I.3; Collis, Shannon J.3; Deal, Wanda S.2
通讯作者Camp, Richard J.
来源期刊WESTERN NORTH AMERICAN NATURALIST
ISSN1527-0904
EISSN1944-8341
出版年2013
卷号73期号:2页码:248-253
英文摘要

Capturing Common Ravens (Corvus corax) is very difficult. Several methods are currently used, but none effectively catch large numbers (>25 birds) of ravens at one time. Efficient capture of large numbers of ravens is needed for some autecology studies. We describe and evaluate the effectiveness of using a prebaited rocket net trapping method for simultaneously capturing large numbers of ravens. The study sites were within 2 landfills in California’s Mojave Desert, one at Edwards Air Force Base and the other at Fort Irwin National Training Center. We captured 283 ravens on 5 trapping occasions between 1995 and 1997, with an average of 57 birds per trapping occasion. We observed greater numbers of ravens at the bait sites with increasing bait duration, and these numbers appeared to level off after 25 to 30 days of baiting. Longer bait durations may habituate ravens to the resource and compensate for their wariness, which could increase capture success. More than half of the ravens captured (55%) were adults, and subadults composed the remaining age class (42%). Only 3% of the ravens captured were hatch-year birds, a result of trapping early in the breeding season. Using rocket nets is a safe and effective method to capture large numbers of ravens.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000339960300016
WOS关键词COMMON RAVEN ; DESERT TORTOISES ; POPULATION ; PREDATION
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构United States Geological Survey ; Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/180249
作者单位1.Colorado State Univ, Dept Fishery & Wildlife Biol, Ft Collins, CO 80523 USA;
2.Environm Management, Edwards AFB, CA 93524 USA;
3.USGS, Western Ecol Res Ctr, San Diego, CA 92123 USA;
4.Univ Hawaii Hilo, Hawaii Natl Pk, Hawaii Cooperat Studies Unit, Hilo, HI 96718 USA
推荐引用方式
GB/T 7714
Camp, Richard J.,Hagan, Mark,Boarman, William I.,et al. CATCHING LARGE GROUPS OF RAVENS: A NOTE ON PROCEDURES USING ROCKET NETS[J]. United States Geological Survey, Colorado State University,2013,73(2):248-253.
APA Camp, Richard J.,Hagan, Mark,Boarman, William I.,Collis, Shannon J.,&Deal, Wanda S..(2013).CATCHING LARGE GROUPS OF RAVENS: A NOTE ON PROCEDURES USING ROCKET NETS.WESTERN NORTH AMERICAN NATURALIST,73(2),248-253.
MLA Camp, Richard J.,et al."CATCHING LARGE GROUPS OF RAVENS: A NOTE ON PROCEDURES USING ROCKET NETS".WESTERN NORTH AMERICAN NATURALIST 73.2(2013):248-253.
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