Plant strategies and agricultural landscapes : survival in spatially and temporally fragmented habitat

摘要: In agricultural landscapes many plant species are limited to the network of landscape elements that not used for production. This habitat is fragmented in space and time due anthropogenic, biotic abiotic factors. Therefore, populations spatially sub-divided their persistence might be dependent on spatial dynamics local populations. Dispersal characteristics seed bank main determinants colonization ability which turn a key determinant metapopulation viability. We propose conceptual model relates population quality, configuration dynamics. this model, arranged as suitable unsuitable patches, distribution patches assumed dynamic time. Based dispersal four strategies distinguished: having either long (> 100 m) or short ( 5 yr) (< term persistent bank. expect with contrasting have different survival probabilities arrangement found few empirical studies testing hypotheses based model. Therefore relation between needs further explored, especially quantitative aspects. an iterative process modelling research determine define management options multifunctional farms biodiversity one land use aims.