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Problems seeded in the past: lagged effects of historical land-use changes can cause an extinction debt in long-lived species due to movement limitation


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Título :
Problems seeded in the past: lagged effects of historical land-use changes can cause an extinction debt in long-lived species due to movement limitation
Autor :
Jiménez Franco, María Victoria  
gracia, eva  
Rodríguez-Caro, Roberto  
Anadón Herrera, José Daniel
Wiegand, Thorsten
Botella Robles, Francisco  
Giménez, Andrés
Editor :
Springer
Departamento:
Departamentos de la UMH::Biología Aplicada
Fecha de publicación:
2022-01
URI :
https://hdl.handle.net/11000/31058
Resumen :
Context Land-use change is one of the main threats to biodiversity on the global scale. Legacy effects of historical land-use changes may affect population dynamics of long-lived species, but they are difficult to evaluate through observational studies alone. We present here an interdisciplinary modelling approach as an alternative to address this problem in landscape ecology. Objectives Assess effects of agricultural abandonment and anthropisation on the population dynamics of long-lived species. Specifically, we evaluated: (a) how changes in movement patterns caused by land-use change might impact population dynamics; (b) time-lag responses of demographic variables in relation to land-use changes. Methods We applied an individual-based and spatial- explicit simulation model of the spur-tighed tortoise (Testudo graeca), an endangered species, to sequences of real-world landscape changes representing agricultural abandonment and anthropisation at the local scale. We analysed different demographic variables and compared an ‘‘impact scenario’’ (i.e., historical land-use changes) with a ‘‘control scenario’’ (no land-use changes). Results While agricultural abandonment did not lead to relevant changes in demographic variables, anthropisation negatively affected the reproductive rate, population density and the extinction probability with time-lag responses of 20, 30 and 130 years, respectively, and caused an extinction debt of 22%. Conclusions We provide an understanding of how changes in animal movement driven by land-use changes can translate into lagged impacts on demography and, ultimately, on population viability. Implementation of proactive mitigation management are needed to promote landscape connectivity, especially for long-lived species for which first signatures of an extinction debt may arise only after decades.
Palabras clave/Materias:
Agricultural abandonment
Individualbased model
Landscape scenarios
Population viability
Testudo graeca
Área de conocimiento :
CDU: Ciencias puras y naturales: Biología: Biología general y teórica
Tipo documento :
application/pdf
Derechos de acceso:
info:eu-repo/semantics/closedAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
DOI :
https://doi.org/10.1007/s10980-021-01388-3
Aparece en las colecciones:
Artículos Biología Aplicada



Creative Commons La licencia se describe como: Atribución-NonComercial-NoDerivada 4.0 Internacional.