River Ray
Basic information
Sample name: River Ray

Reference: E. M. Raebel, T. Merckx, R. E. Feber, P. Riordan, D. W. Macdonald, and D. J. Thompson. 2011. Identifying high-quality pond habitats for Odonata in lowland England: implications for agri-environment schemes. Insect Conservation and Diversity 5(6):422-432 [ER 1094]
Country: United Kingdom

Coordinate: 51° 49' N, 1° 15' W
Basis of coordinate: based on nearby landmark
Geography comments: "29 farmland ponds (size range: 231452 m2)... within four dis- crete areas of the River Ray catchment (Buckinghamshire and Oxfordshire, UK)" (coordinate based on the River Ray)
Habitat: temperate broadleaf/mixed forest
Substrate: water edge
Life forms: odonates
Sites: 29
Sampling methods: no design, hand capture
Sample size: 11025
Years: 2006 - 2008
Sampling comments: "Exuviae were collected in each of 3 years: from May to September in 2006 and 2008 and from June to September in 2007... Each pond was visited at least four times in a 3-week rotation each year to allow for species turnover"
Sample: 1608
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-05-27 20:40:22
Modified: 2015-05-27 20:40:22
Abundance distribution
16 species
1 singleton
total count 11025
extrapolated richness: 16.9
Fisher's α: 1.839
geometric series k: 0.5731
Hurlbert's PIE: 0.7833
Shannon's H: 1.8649
Good's u: 0.9999
Each square represents a species. Square sizes are proportional to counts.