Koléa
Basic information
Sample name: Koléa
Reference: A. Guendouz-Benrima, B. Doumandji Mitiche, and D. Petit. 2011. Effects of weak climatic variations on assemblages and life cycles of Orthoptera in North Algeria. Journal of Arid Environments 75:416-423 [ER 2152]
Geography
Country: Algeria
State: West Algiers
Coordinate: 37° 38' N, 3° 46' E
Latlng basis: based on nearby landmark
Geography comments: "on waste lands in the plain of Mitidja (North of Algeria)... only 4 km from the sea, established on a plane area on the southern slope of the Sahel" (coordinate based on Koléa)
Environment
Habitat: desert/xeric shrubland
Altered habitat: cropland
Substrate: ground surface
WMT: 26.8
CMT: 10.1
MAP: 486.0
Habitat comments: "Mediterranean at the limit of sub-humid and semi-arid stages with a mild winter"; the "waste land resulted from the natural plant dynamics over 4-5 years following a crop composed of a mixture of Vicia sp. and Avena sativa"
Methods
Life forms: orthopterans
Sampling methods: quadrat, sweep nets, hand capture
Sample size: 1398 captures or sightings
Years: 1991, 1992
Net or trap nights: 0
Basal area status: not applicable
Sampling comments: "a monthly sampling of insects was undertaken... we delimited at random, open quadrates of 3 m 3 m (9 m2), separated from each other by a distance of at least 10 m... samplings were carried out very early in the morning... This operation was repeated five times in each station using a sweeping net to collect almost all insect individuals by quadrat... individuals were released elsewhere in the vicinity after counting, so as to avoid counting them twice... some individuals were put in plastic bags... for a later determination"
Metadata
Sample no: 2146
Contributor no: John Alroy
Enterer: John Alroy
Created: 2016-07-25 20:18:55
Modified: 2016-07-25 10:18:55
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
28 species
0 singleton
total count 1398
geometric series index: 29.9
Fisher's α: 4.96
geometric series k: 0.8672
Hurlbert's PIE: 0.9246
Shannon's H: 2.8776
Good's u: 1
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