Abstract:
:Connectivity is fundamentally important for shaping the resilience of complex human and natural networks when systems are disturbed. Ecosystem resilience is, in part, shaped by the spatial arrangement of habitats, the permeability and fluxes between them, the stabilising functions performed by organisms, their dispersal traits, and the interactions between functions and stressor types. Controlled investigations of the relationships between these phenomena under multiple stressors are sparse, possibly due to logistic and ethical difficulties associated with applying and controlling stressors at landscape scales. Here we show that grazing performance, a key ecosystem function, is linked to connectivity by manipulating the spatial configuration of habitats in microcosms impacted by multiple stressors. Greater connectivity enhanced ecosystem function and reduced variability in grazing performance in unperturbed systems. Improved functional performance was observed in better connected systems stressed by harvesting pressure and temperature rise, but this effect was notably reversed by the spread of disease. Connectivity has complex effects on ecological functions and resilience, and the nuances should be recognised more fully in ecosystem conservation.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Pearson RM,Schlacher TA,Jinks KI,Olds AD,Brown CJ,Connolly RMdoi
10.1038/s41598-021-80987-1subject
Has Abstractpub_date
2021-01-13 00:00:00pages
1188issue
1issn
2045-2322pii
10.1038/s41598-021-80987-1journal_volume
11pub_type
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