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DOI	10.1111/gcb.17100
	Trophic niches of macrobenthos: Latitudinal variation indicates climate change impact on ecosystem functioning
	Silberberger, Marc J.; Koziorowska-Makuch, Katarzyna; Reiss, Henning; Kedra, Monika
发表日期	2024
ISSN	1354-1013
EISSN	1365-2486
起始页码	30
结束页码	1
卷号	30 期号:1
英文摘要	Benthic food-web structure and organic matter (OM) utilization are important for marine ecosystem functioning. In response to environmental changes related to the ongoing climate change, however, many benthic species are shifting their ranges to colder regions, which may lead to altered community composition, but it remains largely unknown how it will affect ecosystem functioning. Here, stable isotope analysis was used to study benthic OM utilization and food-web structure and to assess whether their spatial patterns reflect today's community differentiation among biogeographic regions and depth zones. Benthic fauna and OM mixtures were collected from two depth zones (100-150 m vs. 200-250 m) within a temperate, two sub-Arctic, and an Arctic fjord along a latitudinal gradient (59-78 degrees N) that was used as a space-for-time substitution to assess the impact of climate change. Our results showed that Arctic and temperate communities are functionally different. Arctic communities were characterized by a strong resource partitioning among different feeding types, irrespective of depth zone. In contrast, all feeding types in temperate communities seemed to rely on sedimentary OM. The sub-Arctic presented a transition zone. In the sub-Arctic, shallower communities resembled Arctic communities, suggesting a functional transition between temperate and sub-Arctic regions. Deeper sub-Arctic communities resembled temperate communities, suggesting a functional transition between the sub-Arctic and Arctic regions. This implies that the regions north of the current transitions (deep Arctic and shallow sub-Arctic) are most likely to experience functional changes related to an altered OM utilization in benthic food webs in response to climate change. Arctic benthic communities show a strong resource partitioning among different feeding types, while all feeding types in temperate communities rely on sedimentary organic matter. The sub-Arctic presents a transition zone, with shallower communities resembling Arctic communities and deeper sub-Arctic communities resembling temperate communities. This implies that the regions north of the current transitions (deep Arctic and shallow sub-Arctic) are most likely to experience functional changes related to an altered organic matter utilization in benthic food webs in response to climate change.image
英文关键词	benthic macrofauna; depth; isotopic niche; marine food webs; space-for-time substitution; stable isotope analysis
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001126863800001
来源期刊	GLOBAL CHANGE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/308735
作者单位	Polish Academy of Sciences; Institute of Oceanology of the Polish Academy of Sciences; National Marine Fisheries Research Institute; Nord University
推荐引用方式 GB/T 7714	Silberberger, Marc J.,Koziorowska-Makuch, Katarzyna,Reiss, Henning,et al. Trophic niches of macrobenthos: Latitudinal variation indicates climate change impact on ecosystem functioning[J],2024,30(1).
APA	Silberberger, Marc J.,Koziorowska-Makuch, Katarzyna,Reiss, Henning,&Kedra, Monika.(2024).Trophic niches of macrobenthos: Latitudinal variation indicates climate change impact on ecosystem functioning.GLOBAL CHANGE BIOLOGY,30(1).
MLA	Silberberger, Marc J.,et al."Trophic niches of macrobenthos: Latitudinal variation indicates climate change impact on ecosystem functioning".GLOBAL CHANGE BIOLOGY 30.1(2024).