Integrating demographic and genetic effects of connections on the viability of an endangered plant in a highly fragmented habitat

摘要: abstract Classical ecological theories state that the viability of small metapopulations is critically related to: (1)the correlation local population dynamics, (2) possibility extinct patch re-colonisation, and(3) effects genetic deterioration. Recent works suggested these factors are not independentbecause dispersal might affect both re-colonisation and rescue processes because connectiv-ity between habitat patches may be to their environmental synchrony. Close exhibitboth high connectivity synchronisation environments.Here, we examined in endangered plant Ranunculus nodiflorus inhabits temporarywater puddles, where water corridors constitute vector (1) allowing seed throughout pud-dle networks leading synchrony factors. We utilised a demo-geneticmetapopulation model show how antagonistic lead com-plex interactions species’ biology network configuration. specifically demonstratedthat when an effective bank occurs, maximised either for systems numerous smallindependent (not connected synchronised), or one single large network, whileintermediate situations dramatic increase extinction risk; deterioration hasnotable negative on only environmentally driven buf-fered by presence configuration; (3) temporary connections amongnetworks reduction risk. The implementation such isan efficient management option species. 2012 Elsevier Ltd. All rights reserved.