Neighbourhood landscape context shapes local species richness patterns across continents

被引:5
|
作者
Li, Lihe [1 ]
Teng, Shuqing N. [1 ]
Zhang, Yong [2 ]
Li, Yuxiang [1 ]
Wang, Haijun [3 ]
Santana, Joana [4 ,5 ,6 ]
Reino, Luis [4 ,5 ,6 ]
Abades, Sabastian [7 ]
Svenning, Jens-Christian [8 ,9 ]
Xu, Chi [1 ,10 ,11 ]
机构
[1] Nanjing Univ, Sch Life Sci, Nanjing 210023, Peoples R China
[2] Nanjing Forestry Univ, Coll Biol & Environm, Nanjing, Peoples R China
[3] Yunnan Univ, Inst Ecol Res & Pollut Control Plateau Lakes, Sch Ecol & Environm Sci, Kunming, Peoples R China
[4] Univ Porto, InBIO Lab Associado, Ctr Invest Biodiversidade & Recursos Genet, CIBIO, Campus Vairao, Vairao, Portugal
[5] Univ Lisbon, Inst Super Agron, InBIO Lab Associado, CIBIO,Ctr Invest Biodiversidade & Recursos Genet, Lisbon, Portugal
[6] CIBIO, BIOPOLIS Program Genom Biodivers & Land Planning, Campus Vairao, Vairao, Portugal
[7] Univ Mayor, Fac Sci Engn & Technol, GEMA Ctr Genom Ecol & Environm, Huechuraba, Chile
[8] Aarhus Univ, Ctr Ecol Dynam Novel Biosphere ECONOVO, Dept Biol, Aarhus C, Denmark
[9] Aarhus Univ, Ctr Biodivers Dynam Changing World BIOCHANGE, Dept Biol, Aarhus C, Denmark
[10] Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan, Peoples R China
[11] Ningxia Univ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Minist Educ, Yinchuan, Peoples R China
来源
GLOBAL ECOLOGY AND BIOGEOGRAPHY | 2023年 / 32卷 / 06期
基金
新加坡国家研究基金会; 中国国家自然科学基金;
关键词
biodiversity; cross-scale; land cover; landscape ecology; landscape pattern; macroecology; mammals; scale; scaling; LAND-COVER DATA; HABITAT QUALITY; PLANT DIVERSITY; GLOBAL PATTERNS; SCALE; BIODIVERSITY; DISTRIBUTIONS; FORESTS; MAMMALS; HETEROGENEITY;
D O I
10.1111/geb.13668
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Aim: Recent studies highlight the importance of linking landscape ecology and macroecology for a better understanding of broad-scale biodiversity patterns. The "landscape context effect" denotes that species responses and biodiversity in a focal area are shaped by neighbouring landscape composition and structure outside the focal area. Here, we test whether the landscape context effect could be pronounced at macroecological scales.Location: Sub-Saharan Africa and continental China.Time period: Late 20th to early 21st centuries.Taxa studied: Terrestrial mammals (>= 2 kg).Methods: We calculated species richness on the basis of grid cells of 50 km x 50 km and 100 km x 100 km. We used ordinary least square and random forest models to examine the relationships between species richness within grid cells and landscape context (defined as composition and structure of the neighbouring landscape outside the grid cells, with distances of 10-400 km to the boundary of a given grid cell). We used variation partitioning to quantify the independent and shared explanatory power of the landscape context variables, grouping species by body size and diet.Results: Landscape context alone explained <= 20% of the variation in species richness, even when controlling for correlations with macroenvironmental variables (climate, productivity and topography) and correlations with landscape attributes within the grid cells. Importantly, the explanatory power of landscape context at the scales of 100-400 km ofen outweighed grid-cell landscape attributes or macro-environmental variables. The independent explanatory power of landscape context was lowest for small-sized omnivores. Furthermore, we found higher independent explanatory power for large herbivores in sub-Saharan Africa than in continental China.Main conclusions: Landscape context plays a substantial role in shaping local biodiversity patterns at regional and continental scales, with its strength varying with organism diet and movement needs and possibilities. These findings support that conservation efforts should include effective management of landscape structure, with attention to differing space requirements among organism groups. Our work also illustrates the scope for testing landscape ecological hypotheses at macroecological scales.
引用
收藏
页码:867 / 880
页数:14
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