Cañaveroso stream
Basic information
Sample name: Cañaveroso stream
Sample aka: E1

Reference: M. Ferreras-Romero, J. Márquez-Rodríguez, and A. Ruiz-García. 2009. Implications of anthropogenic disturbance factors on the Odonata assemblage in a Mediterranean fluvial system. International Journal of Odonatology 12(2):413-428 [ER 1107]
Country: Spain

Coordinate: 37° 31' N, 6° 16' W
Basis of coordinate: based on nearby landmark
Geography comments: "in the catchment of the Guadiamar River" southwest of Aznalcollar (basis of coordinate)
Climate and habitat
Habitat: Mediterranean woodland
Altered habitat: pasture
Substrate: lake bottom/stream bed
Habitat comments: "originally covered by native perennial Mediterranean forest, in which Quercus ilex dominated" and the main land use is now apparently "forest exploitation (Pinus pinaster, P. pinea), and ranching of cattle, fight-bulls, and Iberian pigs"
Life forms: odonates
Sampling methods: no design, other nets
Sample size: 363
Years: 2004 - 2008
Days: 12
Sampling comments: larvae "collected with a kick net with an opening of 25 x 25 em and 250 pm mesh. Samples at each site were taken from all microhabitats, such as pool, riffle, stream bed, submerged and emerged vegetation"
Sample: 1623
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-05-31 20:48:48
Modified: 2015-05-31 20:48:48
Abundance distribution
12 species
3 singletons
total count 363
extrapolated richness: 16.4
Fisher's α: 2.385
geometric series k: 0.6326
Hurlbert's PIE: 0.7101
Shannon's H: 1.5195
Good's u: 0.9918
Each square represents a species. Square sizes are proportional to counts.