Multi-habitat landscapes are more diverse and stable with improved function

Talya D. Hackett (), Alix M. C. Sauve, Kate P. Maia, Daniel Montoya, Nancy Davies, Rose Archer, Simon G. Potts, Jason M. Tylianakis, Ian P. Vaughan and Jane Memmott ()
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Talya D. Hackett: University of Bristol
Alix M. C. Sauve: University of Bristol
Kate P. Maia: University of Bristol
Daniel Montoya: University of Bristol
Nancy Davies: University of Bristol
Rose Archer: University of Bristol
Simon G. Potts: University of Reading
Jason M. Tylianakis: University of Canterbury
Ian P. Vaughan: Cardiff University, Sir Martin Evans Building
Jane Memmott: University of Bristol

Nature, 2024, vol. 633, issue 8028, 114-119

Abstract: Abstract Conservation, restoration and land management are increasingly implemented at landscape scales1,2. However, because species interaction data are typically habitat- and/or guild-specific, exactly how those interactions connect habitats and affect the stability and function of communities at landscape scales remains poorly understood. We combine multi-guild species interaction data (plant–pollinator and three plant–herbivore–parasitoid communities, collected from landscapes with one, two or three habitats), a field experiment and a modelling approach to show that multi-habitat landscapes support higher species and interaction evenness, more complementary species interactions and more consistent robustness to species loss. These emergent network properties drive improved pollination success in landscapes with more habitats and are not explained by simply summing component habitat webs. Linking landscape composition, through community structure, to ecosystem function, highlights mechanisms by which several contiguous habitats can support landscape-scale ecosystem services.

Date: 2024
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DOI: 10.1038/s41586-024-07825-y

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