Unravelling spatial scale effects on elevational diversity gradients: insights from montane small mammals in Kenya

	Unravelling spatial scale effects on elevational diversity gradients: insights from montane small mammals in Kenya
	Onditi, KO; de la Sancha, NU; Musila, S; Kioko, E; Jiang, XL
	2024
发表期刊	BMC ECOLOGY AND EVOLUTION
卷号	24 期号:1
摘要	BackgroundMontane ecosystems play crucial roles as global biodiversity hotspots. However, climatic changes and anthropogenic pressure increasingly threaten the stability of montane community dynamics, such as diversity-elevation interactions, creating a challenge in understanding species biogeography and community ecology dynamics in these crucial conservation areas. We examined how varying sampling spatial grains influence small mammal diversity patterns within Kenya's tallest montane ecosystems.MethodsEmploying a combination of multidimensional alpha diversity metrics and multisite beta diversity characteristics (species richness, phylogenetic and functional diversity and divergence, and multisite beta diversity) alongside spatial generalized additive multivariate regression analyses, we tested how spatial scaling influences elevational diversity gradient patterns and their associations with environmental and human activity variables.ResultsThe diversity-elevation associations were generally homogeneous across spatial grains; however, idiosyncratic patterns emerged across mountains. The total (taxonomic, phylogenetic, and functional) beta diversity, nestedness, and turnover resultant components monotonically increased or decreased with varying spatial grains. The associations between the diversity patterns and the environmental and human footprint variables increased with spatial grain size but also presented variations across mountains and indices. Species richness and phylogenetic and functional richness indices were more strongly influenced by spatial scale variations than were the divergence and community structure indices in both the diversity distribution patterns and their associations with the environmental and human variables.ConclusionsThe diversity-elevation and diversity-environment (including human activity pressure) relationships across spatial grains suggest that montane small mammal diversity patterns portray subtle but systematic sensitivity to sampling spatial grain variation and underscore the importance of geographical context in shaping these elevational diversity gradients. For improved effectiveness, conservation efforts should consider these spatial effects and the unique geographical background of individual montane ecosystems.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/14569
专题	科研部门_兽类生态与进化（蒋学龙）
推荐引用方式 GB/T 7714	Onditi, KO,de la Sancha, NU,Musila, S,et al. Unravelling spatial scale effects on elevational diversity gradients: insights from montane small mammals in Kenya[J]. BMC ECOLOGY AND EVOLUTION,2024,24(1).
APA	Onditi, KO,de la Sancha, NU,Musila, S,Kioko, E,&Jiang, XL.(2024).Unravelling spatial scale effects on elevational diversity gradients: insights from montane small mammals in Kenya.BMC ECOLOGY AND EVOLUTION,24(1).
MLA	Onditi, KO,et al."Unravelling spatial scale effects on elevational diversity gradients: insights from montane small mammals in Kenya".BMC ECOLOGY AND EVOLUTION 24.1(2024).

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