Chinese Birds最新文献_第7页

Status of and threats to the Black-winged Lovebird (Agapornis taranta) in Entoto Natural Park and Bole Sub-City, Addis Ababa, Ethiopia 埃塞俄比亚亚的斯亚贝巴恩托托自然公园和伯乐副城市黑翼情侣鸟的现状及威胁

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0029

W. Tekalign, A. Bekele

{"title":"Status of and threats to the Black-winged Lovebird (Agapornis taranta) in Entoto Natural Park and Bole Sub-City, Addis Ababa, Ethiopia","authors":"W. Tekalign, A. Bekele","doi":"10.5122/CBIRDS.2011.0029","DOIUrl":"https://doi.org/10.5122/CBIRDS.2011.0029","url":null,"abstract":"A study of the population status of and threats to the Black-winged Lovebird (Agapornis taran- ta) was carried out from September 2008 to February 2009 in Entoto Natural Park (ENP) and in Bole Sub- City, Addis Ababa, Ethiopia. A point transect count technique was employed to examine the status of the lovebirds. An average total of 58 birds was recorded of which 46 were counted in Bole Sub-City and 12 in Entoto Natural Park areas. The maximum number recorded during our census was 57 in the dry season and 15 in the wet season in Bole Sub-City and Entoto Natural Park, respectively. The ratio of adult males to adult females in Entoto Natural Park was 1:0.71 and 1:0.60, and 1:0.76 and 1:0.78 in Bole Sub-City dur- ing both wet and dry seasons, respectively. The seasonal variation and difference in sex ratios between males and females was not significant ( p > 0.05) at either of the study sites. The threat for the Black- winged Lovebird or other birds in Entoto Natural Park is due to the fragmentation of natural habitats, thus decreasing food sources, owing to the domination of eucalyptus (Eucalyptus globulus) trees in the area. Grazing by livestock, intensive farming practices and deforestation by the local community have contrib- uted greatly to the degradation of the land resulting in erosion, thus devastating the habitat of the Natural Park. The vegetation cover of Entoto Natural Park and urban gardens should be managed effectively for the survival of the avian fauna of the area.","PeriodicalId":227522,"journal":{"name":"Chinese Birds","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129869617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Power line strikes by Black-necked Cranes and Bar-headed Geese in Tibet Autonomous Region 西藏自治区黑颈鹤和斑头雁袭击输电线

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0028

Fengshan Li, M. Bishop, Tsamchu Drolma

引用次数: 9

Blue-eared Pheasant: a forest bird endemic to China 蓝耳雉:一种中国特有的森林鸟类

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0031

Yiqun Wu, Nai-fa Liu

引用次数: 1

An ethogram of Spot-billed Pelican (Pelecanus philippensis) 斑嘴鹈鹕(Pelecanus philippensis)族谱

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0030

V. Gokula

引用次数: 11

The White-eared Night Heron (Gorsachius magnificus): from behind the bamboo curtain to the front stage 白耳夜鹭(Gorsachius magnificus):从竹幕后面到舞台前面

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0025

F. He, Xiao-jun Yang, Xuejian Deng, K. Zhu, Li Li, Jian-sheng Lin, Hangdong Jiang, Lin Zhi

引用次数: 4

Latest evidence of the existence of the northern flock of the Chinese Crested Tern (Sterna bernsteini) 中国冠燕鸥(Sterna bernsteini)北方群存在的最新证据

Chinese Birds Pub Date : 2012-03-03 DOI: 10.5122/CBIRDS.2011.0026

Yu-jun Qin, Fenqi He

引用次数: 1

Avian orientation: multi-cue integration and calibration of compass systems 鸟类定向:罗盘系统的多线索集成和校准

Chinese Birds Pub Date : 2012-03-01 DOI: 10.5122/CBIRDS.2012.0001

Xiaofeng Liu, N. Chernetsov

引用次数: 21

Foraging behavior of the Eurasian Three-toed Woodpecker subspecies Picoides tridactylus funebris in southern Gansu, China 甘肃南部欧亚三趾啄木鸟亚种Picoides tridactylus funebris的觅食行为

Chinese Birds Pub Date : 2012-03-01 DOI: 10.5122/CBIRDS.2012.0002

Yongzhi Zhu, Nan Lü, P. Pechacek, Jinlin Li, Yue-Hua Sun

{"title":"Foraging behavior of the Eurasian Three-toed Woodpecker subspecies Picoides tridactylus funebris in southern Gansu, China","authors":"Yongzhi Zhu, Nan Lü, P. Pechacek, Jinlin Li, Yue-Hua Sun","doi":"10.5122/CBIRDS.2012.0002","DOIUrl":"https://doi.org/10.5122/CBIRDS.2012.0002","url":null,"abstract":"Freiburg, Germany Abstract The Three-toed Woodpecker subspecies Picoides tridactylus funebris is endemic to the Qinghai-Tibet plateau in China. No part of its life history was ever reported since its discovery in 1870. To close this gap, we observed foraging behavior of a pair between April and August 2007. A total of 117 observations (28 for male and 89 for female) were obtained by following the birds within their home-ranges using radio-tracking. P. t. funebris preferred foraging on live spruces and snags bigger than available with an average diameter of breast height (DBH) of 32.7 ± 9.2 cm. The most frequent foraging technique was pecking (39.8% of foraging time) and peeling (13.2%). Moreover, sap-sucking was observed more often in P. t. funebris than in P. t. alpinus , suggesting that P. t. funebris was more dependent on the tree sap than the other subspecies. We found distinct niche partitioning between the sexes with respect to use of three out of four investigated parameters of the foraging substrates. These differences were likely related to sexual dimorphism pronounced by slightly larger bill of the male. We concluded that the subspecies P. t. funebris displayed foraging behavior which was very similar to that of other subspecies of the","PeriodicalId":227522,"journal":{"name":"Chinese Birds","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121601682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Pheasants in sacred and other forests in western Sichuan: their cultural conservation 川西神山及其他林区野鸡的文化保护

Chinese Birds Pub Date : 2012-03-01 DOI: 10.5122/CBIRDS.2012.0003

Nan Wang, Guang-mei Zheng, P. McGowan

引用次数: 6

Nickel concentration in two bird species from Hara Biosphere Reserve of southern Iran 伊朗南部哈拉生物圈保护区两种鸟类的镍含量

Chinese Birds Pub Date : 2012-03-01 DOI: 10.5122/CBIRDS.2012.0007

B. Mansouri, E. Hoshyari

引用次数: 11