Assessing Spider Species Richness and Composition in Mediterranean Cork Oak Forests
acta oecologica 33 (2008) 114–127 available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/actoec Original article Assessing spider species richness and composition in Mediterranean cork oak forests Pedro Cardosoa,b,c,*, Clara Gasparc,d, Luis C. Pereirae, Israel Silvab, Se´rgio S. Henriquese, Ricardo R. da Silvae, Pedro Sousaf aNatural History Museum of Denmark, Zoological Museum and Centre for Macroecology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark bCentre of Environmental Biology, Faculty of Sciences, University of Lisbon, Rua Ernesto de Vasconcelos Ed. C2, Campo Grande, 1749-016 Lisboa, Portugal cAgricultural Sciences Department – CITA-A, University of Azores, Terra-Cha˜, 9701-851 Angra do Heroı´smo, Portugal dBiodiversity and Macroecology Group, Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK eDepartment of Biology, University of E´vora, Nu´cleo da Mitra, 7002-554 E´vora, Portugal fCIBIO, Research Centre on Biodiversity and Genetic Resources, University of Oporto, Campus Agra´rio de Vaira˜o, 4485-661 Vaira˜o, Portugal article info abstract Article history: Semi-quantitative sampling protocols have been proposed as the most cost-effective and Received 8 January 2007 comprehensive way of sampling spiders in many regions of the world. In the present study, Accepted 3 October 2007 a balanced sampling design with the same number of samples per day, time of day, collec- Published online 19 November 2007 tor and method, was used to assess the species richness and composition of a Quercus suber woodland in Central Portugal. A total of 475 samples, each corresponding to one hour of Keywords: effective fieldwork, were taken.
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