High matrix vegetation decreases mean seed dispersal distance but increases long wind dispersal probability connecting local plant populations in agricultural landscapes
نویسندگان
چکیده
Seed dispersal plays an important role in population dynamics agricultural ecosystems, but the effects of surrounding vegetation height on seed and connectivity landscape scale have rarely been studied. Understanding will provide information for land-use management landscapes to prevent spread undesired weeds or enhance functional connectivity. We used two model species, Phragmites australis Typha latifolia, growing small natural ponds known as kettle holes, evaluate wind between holes. distance probability long-distance (LDD) were simulated with mechanistic WALD under three scenarios “low”, “dynamic” “high” height. Connectivity origin target holes was quantified a index adapted from Hanski Thomas (1994). Our results show that mean decreases matrix vegetation, increases This indicates vegetation-based trade-off LDD, which has impact Matrix negative effect positive LDD. its novel insights into level (meta-)population community — change by climatic changes could strongly affect wind-dispersed plants. The opposite LDD should therefore be considered analyses future climate effects. • Mean increasing Probability vegetation-induced impacts among Vegetation affects (meta-)
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ژورنال
عنوان ژورنال: Agriculture, Ecosystems & Environment
سال: 2021
ISSN: ['0167-8809', '1873-2305']
DOI: https://doi.org/10.1016/j.agee.2021.107678