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Predation patterns on artificial nests of ground nesting pheasants in the montane forest, Southwest China
Bu, Hongliang; Shen, Xiaoli1; Li, Sheng
2019
发表期刊ACTA ORNITHOLOGICA
ISSN0001-6454
卷号54期号:1页码:35-43
摘要Nest predation is a major cause leading to reproductive failure of many avian species. Identifying nest predators is crucial for understanding the ecological context of nest predation and habitat management. The mountains of Southwest China harbors numerous species in the Phasianidae family, many of them endemic or threatened, however, little is known on the nest predation pressure on these ground breeders. We placed 32 artificial nests (each containing two chicken eggs) in broadleaf montane forests with different vegetation structure, and monitored predators with infrared-triggered cameras. The artificial nests were resembling nests of Golden Pheasant Chrysolophus pictus, a representative of the threatened species inhabiting montane broadleaf forest. We analyzed how environmental factors impact survival of artificial nests using Cox proportional hazards regression. With a failure rate of 62.5%, we recorded 40 predations where eggs were preyed or moved away, 19 predation attempts where animals spotted and contacted with, but failed to prey on or move away the eggs, and 109 pass-by events. Corvids, especially Large-billed Crow Corvus macrorhynchos was the primary culprit, committing all but one predations on artificial nests. Other potential predators included Pere David's Rock Squirrel Sciurotamias davidianus, Eurasian Jay Garrulus glandarius, Red-billed Blue Magpie Ltrocissa erythrorhyncha, Chinese Porcupine Hystrix hodgsoni and muridaes. We found that understory cover and vertical openness were the determining factors on survival of artificial nests. Presence of understory cover and low vertical openness significantly increased survival time of artificial nests. We didn't detect significant effects from horizontal openness and distance to nearest patrol trail. Further studies with real nests are however required to examine these conclusions, and to explore reproduction strategies of ground nesting pheasants coping with threats from avian predators.
关键词artificial nest nest predation ground-nesting pheasant camera-trapping nesting success reproductive strategy
学科领域Ornithology
DOI10.3161/00016454AO2019.54.1.003
收录类别SCI
语种英语
WOS关键词SUCCESS ; FRAGMENTATION ; VEGETATION ; SURVIVAL ; RISK ; MANAGEMENT ; DIVERSITY ; DENSITY ; SITES ; BIRDS
WOS研究方向Zoology
WOS记录号WOS:000495363400003
出版者MUSEUM & INST ZOOLOGY
文献子类Article
出版地WARSAW
EISSN1734-8471
作者邮箱shengli@pku.edu.cn
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/19566
专题植被与环境变化国家重点实验室
作者单位1.Peking Univ, Sch Life Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100091, Peoples R China
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Bu, Hongliang,Shen, Xiaoli,Li, Sheng. Predation patterns on artificial nests of ground nesting pheasants in the montane forest, Southwest China[J]. ACTA ORNITHOLOGICA,2019,54(1):35-43.
APA Bu, Hongliang,Shen, Xiaoli,&Li, Sheng.(2019).Predation patterns on artificial nests of ground nesting pheasants in the montane forest, Southwest China.ACTA ORNITHOLOGICA,54(1),35-43.
MLA Bu, Hongliang,et al."Predation patterns on artificial nests of ground nesting pheasants in the montane forest, Southwest China".ACTA ORNITHOLOGICA 54.1(2019):35-43.
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