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: 36° 38' N, 2° 46' E
Coordinate 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

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 number: 2146

Contributor: John Alroy

Enterer: John Alroy

Created: 2016-07-25 20:18:55

Modified: 2016-07-25 10:18:55

Abundance distribution
28 species
0 singletons
total count 1398
geometric series index: 29.9
Fisher's α: 4.960
geometric series k: 0.8383
Hurlbert's PIE: 0.9246
Shannon's H: 2.8776
Good's u: 1.0000
Each square represents a species. Square sizes are proportional to counts.
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