Landscape Ecology, Год журнала: 2024, Номер 40(1)

Опубликована: Дек. 19, 2024

Urbanization affects landscape structure, functions and local environmental conditions, with major impacts on biodiversity. An evaluation of its effects biodiversity, including both taxonomic functional diversity, is thus compelling, a specific focus groups providing fundamental ecosystem services. Spiders are ideal biological models for urban ecology studies because they renowned bioindicators can be found abundantly along urbanization gradients. In this work, we aim at evaluating the filtering role exerted by scale foliage-dwelling spider communities level. We assessed response spiders to in Torino (NW-Italy), sampling their parks an gradient control area located nearby natural park. tested terms diversity density six metrics. Results statistical (GLMMs) were used predict values current biodiversity city under different future scenarios (i.e. 2040, 2050). Spider abundance species richness decreased compared gradient. Variation community composition was mostly due replacement (67%) within area, loss (62%). This pattern specialized foraging guilds, such as pollinator-feeding spiders. Functional dissimilarity among samples explained (69%), suggesting filter favoring preadapted conditions. By projecting measures two "greener city" scenarios, identified 8 priority areas where management actions should implemented. Our findings underscore shaping communities, generalist traits. The prediction proved useful identify increasing surface may contribute most effectively

Язык: Английский