Vale do Guadiana Nature Park
Basic information
Sample name: Vale do Guadiana Nature Park
Reference: P. Cardoso, S. S. Henriques, C. Gaspar, L. C. Crespo, R. Carvalho, J. B. Schmidt, P. Sousa, and T. Szüts. 2009. Species richness and composition assessment of spiders in a Mediterranean scrubland. Journal of Insect Conservation 13:45-55 [ER 2896]
Geography
Country: Portugal
Coordinate: 37° 34' 30" N, 7° 32' 6" W
Basis of coordinate: stated in text
Geography comments: "in Pomarão, Vale do Guadiana Nature Park"
Climate and habitat
Habitat: temperate savanna
Protection: nature reserve
Substrate: ground surface
MAT: 17.0
MAP: 500.0
Habitat comments: "The site was dominated by a variety of sclerophilous plants, including rockrose (Cistus sp.), lavender (Lavandula sp.), gorse (Ulex sp.) and plants that remained from the former agricultural use of the site or from surrounding areas, mainly oat (Avena sativa L.)"
Methods
Life forms: spiders
Sites: 1
Site length: 100.000
Site width: 100.000
Sampling methods: quadrat, sweep nets, hand capture
Sample size: 3049
Years: 2006
Seasons: spring
Sampling comments: "a square sampling plot 100 m wide... Additional effort was made around the sampling plot, up to a distance of about 100 m and an overall sampling area of about 10 ha. Sampling was made from May 9 to 23 of 2006... 224 samples were taken. Each sample consisted of one person-hour of work... 128 samples were made inside the delimited plot over 4 days... by eight collectors... specimens were captured with hand, forceps, pooter or brush" at ground level and with "a round sweep net, with a diameter 40 cm"
counts are of adults only
counts are of adults only
Metadata
Sample: 3105
Contributor: John Alroy
Enterer: John Alroy
Created: 2018-09-19 21:46:52
Modified: 2018-09-19 21:46:52
Abundance distribution
115 species
33 singletons
total count 3049
standardised richness: not computable
Fisher's α: 23.623
geometric series k: 0.9451
Hurlbert's PIE: 0.9185
Shannon's H: 3.2827
Good's u: 0.9892
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