气候变化领域集成服务门户(CCPortal): Balancing between predation risk and food by boreal breeding ducks

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DOI	10.1002/ece3.11011
	Balancing between predation risk and food by boreal breeding ducks
	Holopainen, Sari; Miettinen, Elmo; Vaananen, Veli-Matti; Nummi, Petri; Poysa, Hannu
发表日期	2024
ISSN	2045-7758
起始页码	14
结束页码	2
卷号	14 期号:2
英文摘要	Wetlands belong to the globally most threatened habitats, and organisms depending on them are of conservation concern. Wetland destruction and quality loss may affect negatively also boreal breeding ducks in which habitat selection often needs balancing between important determinants of habitat suitability. In Finland duck population trajectories are habitat-specific, while the reasons behind are poorly understood. In this research, we studied the balance of nest predation risk and invertebrate food abundance in boreal breeding ducks in Finland at 45 lakes and ponds in 2017 and 2018. We surveyed duck pairs and broods from these and 18 additional water bodies. We evaluated nest predation by monitoring artificial nests with camera traps over a 7-day exposure period and sampled invertebrates from water bodies using emergence and activity traps. Camera trap results indicate that predation risk was higher in the water bodies surrounded by agricultural land than in forestland. Ponds (seasonal, beaver, and man-made) had lower nest predation risk, and they were also more invertebrate-rich than permanent lakes. In addition, artificial nests further away from water bodies had higher survival than shoreline nests. Habitat use of duck pairs was not associated with invertebrate food, but duck broods preferred habitats rich in food. High nest predation pressure in shorelines of especially agricultural landscapes may contribute to the declining population trends of ducks in Finland. Controlling predators could be an important conservation action to improve duck breeding success. This research underlines the benefits of the availability of different water body types for breeding ducks. There is an urgent need to pay attention to protecting seasonal ponds, while the lack of flooded waters may be mitigated by favouring beavers or creating man-made ponds. We studied the effects of wetland quality on boreal breeding ducks from two important aspects: nest predation and food availability. Duck food availability is low and nest predation pressure is high at permanent lakes, while ponds (seasonal, beaver, man-made) were shown to be food-rich habitats with low nest predation pressure. Our results emphasize the benefits of different wetland types in the landscape for the breeding ducks.image
英文关键词	alien predator; camera trap; invertebrate; nest predation; waterbird; wetland
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001159863600001
来源期刊	ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305247
作者单位	University of Helsinki; University of Helsinki; University of Eastern Finland; University of Helsinki
推荐引用方式 GB/T 7714	Holopainen, Sari,Miettinen, Elmo,Vaananen, Veli-Matti,et al. Balancing between predation risk and food by boreal breeding ducks[J],2024,14(2).
APA	Holopainen, Sari,Miettinen, Elmo,Vaananen, Veli-Matti,Nummi, Petri,&Poysa, Hannu.(2024).Balancing between predation risk and food by boreal breeding ducks.ECOLOGY AND EVOLUTION,14(2).
MLA	Holopainen, Sari,et al."Balancing between predation risk and food by boreal breeding ducks".ECOLOGY AND EVOLUTION 14.2(2024).