2024-03-29T04:37:12Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1514182019-08-06T09:08:43Zcom_10261_77com_10261_8col_10261_330
DIGITAL.CSIC
author
Morán-López, Teresa
author
Fernández, Miguel
author
Alonso, César Luis
author
Flores-Rentería, Dulce
author
Valladares Ros, Fernando
author
Díaz Esteban, Mario
funder
Comunidad de Madrid
funder
Ministerio de Economía y Competitividad (España)
2017-06-14T08:16:00Z
2017-06-14T08:16:00Z
2015-11
Oikos - Oxford 124(11): 1482-1491 (2015)
0030-1299
http://hdl.handle.net/10261/151418
10.1111/oik.02061
1600-0706
http://dx.doi.org/10.13039/501100003329http://dx.doi.org/10.13039/100012818
Land-use changes are expected to affect plant–disperser conditional mutualisms through changes in animal behavior. We analyzed the oak–rodent conditional mutualism in Mediterranean fragmented forests at two climatically different locations. We quantified fragmentation effects on seed dispersal effectiveness and assessed if such effects were due to changes in habitat structure and intraspecific competition for acorns in fragmented areas. Fragmentation decreased cover from predators within mouse territories as well as intraspecific competition for acorns. This resulted in lower dispersal effectiveness in small forest fragments. Globally, habitat structure was the main driver in mouse foraging decisions. In small fragments, low shelter availability precluded mouse movements, leading to short mobilization distances and low caching rates. However, as the proportion of cover from predators increased, mice were able to modulate their foraging decisions depending on intraspecific competition for acorns, resulting in higher dispersal quality. In addition to fragmentation effects, delayed breeding in the southern locality caused lower number of rodents during the dispersal season, which reduced acorn mobilization rates. Our study shows that seed dispersal patterns in managed systems can be analyzed as the result of management effects on key environmental factors in dispersers’ foraging decisions.
eng
closedAccess
Effects of forest fragmentation on the oak–rodent mutualism
artículo
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URL
https://digital.csic.es/bitstream/10261/151418/1/accesoRestringido.pdf
File
MD5
42637ae8545636bc41605c1740a9a84e
15753
application/pdf
accesoRestringido.pdf