Habitat loss is the leading cause of the global decline in biodiversity, but the influence of human pressure within the matrix surrounding habitat fragments remains poorly understood. Here, we measure the relationship between fragmentation (the degree of fragmentation and the degree of patch isolation), matrix condition (measured as the extent of high human footprint levels), and the change in extinction risk of 4,426 terrestrial mammals. We find that the degree of fragmentation is strongly associated with changes in extinction risk, with higher predictive importance than life-history traits and human pressure variables. Importantly, we discover that fragmentation and the matrix condition are stronger predictors of risk than habitat loss and habitat amount. Moreover, the importance of fragmentation increases with an increasing deterioration of the matrix condition. These findings suggest that restoration of the habitat matrix may be an important conservation action for mitigating the negative effects of fragmentation on biodiversity.

Matrix condition mediates the effects of habitat fragmentation on species extinction risk / Ramírez-Delgado, Juan Pablo; Di Marco, Moreno; Watson, James E. M.; Johnson, Chris J.; Rondinini, Carlo; Corredor Llano, Xavier; Arias, Miguel; Venter, Oscar. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 13:1(2022). [10.1038/s41467-022-28270-3]

Matrix condition mediates the effects of habitat fragmentation on species extinction risk

Di Marco, Moreno;Rondinini, Carlo;
2022

Abstract

Habitat loss is the leading cause of the global decline in biodiversity, but the influence of human pressure within the matrix surrounding habitat fragments remains poorly understood. Here, we measure the relationship between fragmentation (the degree of fragmentation and the degree of patch isolation), matrix condition (measured as the extent of high human footprint levels), and the change in extinction risk of 4,426 terrestrial mammals. We find that the degree of fragmentation is strongly associated with changes in extinction risk, with higher predictive importance than life-history traits and human pressure variables. Importantly, we discover that fragmentation and the matrix condition are stronger predictors of risk than habitat loss and habitat amount. Moreover, the importance of fragmentation increases with an increasing deterioration of the matrix condition. These findings suggest that restoration of the habitat matrix may be an important conservation action for mitigating the negative effects of fragmentation on biodiversity.
2022
Animals; Biodiversity; Ecosystem; Biological Extinction; Humans; Mammals
01 Pubblicazione su rivista::01a Articolo in rivista
Matrix condition mediates the effects of habitat fragmentation on species extinction risk / Ramírez-Delgado, Juan Pablo; Di Marco, Moreno; Watson, James E. M.; Johnson, Chris J.; Rondinini, Carlo; Corredor Llano, Xavier; Arias, Miguel; Venter, Oscar. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 13:1(2022). [10.1038/s41467-022-28270-3]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1618026
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