1. In pine ecosystems, the role of the larval nests of the Mediterranean defoliator Thaumetopoea pityocampa as shelter of other arthropods, was studied for the first time. In Portugal, Pinus stands which differed in understorey plant diversity and level of attack by T. pityocampa were compared. 2. The arthropod fauna found sheltering inside the nests consisted of 60 species, representing 12 foraging types. Both...
Doutoramento em Engenharia Florestal - Instituto Superior de Agronomia ; The present work proposed to evaluate the effects of land use and fragmentation on spider diversity and community structure. In Portugal, Oak, Pine, Eucalyptus and Shrubland were sampled to study the effects of habitat complexity on diversity, while abundance and richness were analyzed across a Eucalyptus-Grassland ecotone. In England, as...
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