干旱区生态环境知识资源中心(Arid): Modelling climate influences on population dynamics and diurnal time budget of the Shelduck (Tadorna tadorna) wintering in Ramsar wetlands of Algeria

Arid

DOI	10.1177/1758155919835122
	Modelling climate influences on population dynamics and diurnal time budget of the Shelduck (Tadorna tadorna) wintering in Ramsar wetlands of Algeria
	Bezzalla, Adel 1,2; Houhamdi, Moussa 3; Maazi, Mohamed Cherif 2,4; Chenchouni, Haroun 5,6
通讯作者	Chenchouni, Haroun
来源期刊	AVIAN BIOLOGY RESEARCH
ISSN	1758-1559
EISSN	1758-1567
出版年	2019
卷号	12 期号:3 页码:77-95
英文摘要	Several North African wetlands are classified as wetlands of international importance (Ramsar sites and Important Bird Area) because thousands of Shelducks (Tadorna tadorna) winter in these habitats. However, Shelduck's patterns of habitat use in these protected wetlands during the wintering season are still hindered by lack of information in arid and semi-arid regions regarding population dynamics and the effects of climate variables. This ornithological survey aims to study population dynamics and temporal patterns of diurnal activities of the Shelduck at two Ramsar and Important Bird Area sites (Chott Tinsilt and Sebkhet Ezzemoul) with respect to the effect of climatic parameters of the habitat in order to deepen our understanding of wintering strategies and habitat use. Populations were weekly censused from 06:00 to 19:00 during the entire wintering season (September 2015-May 2016). Diurnal behavioural activities were monitored at the same rate, and then the variation of time budget was tested using generalized linear model to determine the effects of climate variables and conspecific density dependence. The Shelduck was observed at both sites from the end of November and remained there until the total desiccation of both lakes in early May. Trends of Shelduck's population dynamics differed between the two sites. Generalized linear models revealed the significant effects of temperature, wind speed and number of snowy days on population dynamics. Feeding was the main diurnal activity of the Shelduck at both sites with 80.2% of time budget at Chott Tinsilt (mainly feeding at lake shores) and 82% at Sebkhet Ezzemoul (mainly feeding in water). The generalized linear models showed that the variation of time budget allocated to different diurnal activities was not density-dependent, but rather it was negatively affected by the increase of air temperature. Significant effects of the interaction between population size and some climatic variables were found and discussed. During the whole wintering season, Chott Tinsilt and Sebkhet Ezzemoul play an important ecological role since they offer a wide-ranging diurnal forging habitat and a shelter for thousands of this waterfowl.
英文关键词	Chott Tinsilt Sebkhet Ezzemoul Shelduck Tadorna tadorna population dynamics wintering phenology diurnal activities time budget climatic drivers
类型	Article
语种	英语
国家	Algeria
收录类别	SCI-E
WOS记录号	WOS:000482727000001
WOS关键词	FLAMINGO PHOENICOPTERUS-ROSEUS ; DUCK OXYURA-LEUCOCEPHALA ; HABITAT USE ; CONSERVATION ; DIVERSITY ; WATERFOWL ; VICTORIA ; NUMBERS ; BIRDS ; DIET
WOS类目	Agriculture, Dairy & Animal Science ; Ornithology ; Zoology
WOS研究方向	Agriculture ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214576
作者单位	1.Univ Batna 2, Fac Nat & Life Sci, Dept Ecol & Environm, Fesdis, Algeria; 2.Univ Souk Ahras, Fac Nat Sci & Life, Dept Biol, Souk Ahras, Algeria; 3.Univ 8 May 1945, Fac SNV STU, LBEE, Guelma, Algeria; 4.Univ Souk Ahras, Fac Nat & Life Sci, Dept Biol, LEAT Lab, Souk Ahras, Algeria; 5.Univ Tebessa, Fac Exact Sci & Nat & Life Sci, Dept Nat & Life Sci, Tebessa 12002, Algeria; 6.Univ Oum El Bouaghi, Lab Nat Resources & Management Sensit Environm, Oum El Bouaghi, Algeria
推荐引用方式 GB/T 7714	Bezzalla, Adel,Houhamdi, Moussa,Maazi, Mohamed Cherif,et al. Modelling climate influences on population dynamics and diurnal time budget of the Shelduck (Tadorna tadorna) wintering in Ramsar wetlands of Algeria[J],2019,12(3):77-95.
APA	Bezzalla, Adel,Houhamdi, Moussa,Maazi, Mohamed Cherif,&Chenchouni, Haroun.(2019).Modelling climate influences on population dynamics and diurnal time budget of the Shelduck (Tadorna tadorna) wintering in Ramsar wetlands of Algeria.AVIAN BIOLOGY RESEARCH,12(3),77-95.
MLA	Bezzalla, Adel,et al."Modelling climate influences on population dynamics and diurnal time budget of the Shelduck (Tadorna tadorna) wintering in Ramsar wetlands of Algeria".AVIAN BIOLOGY RESEARCH 12.3(2019):77-95.