干旱区生态环境知识资源中心(Arid): Comparative foraging behavior of 3 heron species in small standing-water ecosystems in the arid zone of Oman

Arid

DOI	10.1093/cz/zoae011
	Comparative foraging behavior of 3 heron species in small standing-water ecosystems in the arid zone of Oman
	Kasprzykowski, Zbigniew; Golawski, Artur
通讯作者	Kasprzykowski, Z
来源期刊	CURRENT ZOOLOGY
ISSN	1674-5507
EISSN	2396-9814
出版年	2024
英文摘要	The composition of assemblages, diet and behavior of waterbird species with similar ecological features are important aspects in the functioning of aquatic ecosystems. Closely related animal species often share resources such as space and food in ways that reduce competition, but if the diets of different species strongly overlap, interspecific competition may intensify. This analysis examined behavioral data relating to Great Egret, Little Egret, and Squacco Heron to explore their foraging efficiencies in rich aquatic habitats in an arid zone during post-breeding movements. The fieldwork was carried out in small estuaries of a Wadi on the southern coast of Oman. The frequency of interactions was the highest in Squacco Heron and the lowest in Great Egret. However, the differences in the numbers of inter- and intra-specific interactions between the 3 species were significant. Activity indices calculated for a 5-min period, i.e., the number of interactions (interaction index) and times of flying and walking (movement index) differed among the 3 species. The number of successful attacks was the highest in Squacco Heron, while the foraging effectiveness of Great Egret and Little Egret was similar. GLM analysis showed that only the movement index was significant, as it had a positive impact on individual foraging success. Great Egret caught more fish than the other 2 heron species which, in turn, caught a greater number of smaller prey items, mostly invertebrates. This study shows that heron species in the same rich habitat employ different foraging tactics. In comparison to the other two heron species, the foraging tactics of Squacco Heron seem to be the most susceptible to competition. However, its greater mobility and using different foraging tactics, enhance its foraging success.
英文关键词	competition food niche foraging success hunting tactics interactions
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001201613800001
WOS关键词	EGRET EGRETTA-GARZETTA ; ARDEA-CINEREA ; HABITAT PREFERENCES ; GREY HERONS ; FOOD ; WETLAND ; SHRIKE ; AVAILABILITY ; CONSERVATION ; ECOLOGY
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403280
推荐引用方式 GB/T 7714	Kasprzykowski, Zbigniew,Golawski, Artur. Comparative foraging behavior of 3 heron species in small standing-water ecosystems in the arid zone of Oman[J],2024.
APA	Kasprzykowski, Zbigniew,&Golawski, Artur.(2024).Comparative foraging behavior of 3 heron species in small standing-water ecosystems in the arid zone of Oman.CURRENT ZOOLOGY.
MLA	Kasprzykowski, Zbigniew,et al."Comparative foraging behavior of 3 heron species in small standing-water ecosystems in the arid zone of Oman".CURRENT ZOOLOGY (2024).