Basic information
Sample name: Patras

Reference: O. Tzortzakaki, V. Kati, M. Panitsa, E. Tzanatos, and S. Giokas. 2019. Butterfly diversity along the urbanization gradient in a densely-built Mediterranean city: Land cover is more decisive than resources in structuring communities. Landscape and Urban Planning 183:79-87 [ER 3047]
Country: Greece

Coordinate: 38° 14' N, 21° 44' E
Basis of coordinate: stated in text
Geography comments: "in the city of Patras... total area = 110 km2"
Habitat: Mediterranean woodland
Altered habitat: combined
Protection: unprotected
Substrate: ground surface
MAT: 17.9
MAP: 607.0
Habitat comments: "The climate is typical Mediterranean... the surrounding peri-urban area is covered by agricultural land, orchards (mostly olive groves), Mediterranean shrublands, and a few scattered small remnant patches of coniferous or deciduous forests and riparian vegetation"
Life forms: butterflies
Sites: 45
Sampling methods: line transect, butterfly nets
Sample size: 1805
Years: 2015
Seasons: spring
Sampling comments: "we defined three strata of decreasing urbanization. We overlaid a grid of 500 500 m cell size... We then stratified grid cells into the three strata based on their pro- portion of built cover" namely urban, suburban, and peri-urban, and then "defined 45 sampling sites, by randomly selecting 45 grid cells (15 cells within each zone; Fig. 1)... Butterflies were recorded along fixed transects of 300m length, walking at a constant pace, within 5 m to the side (2.5 m each side)... lasting 30 min on average. Each of the 45 sites was sampled three times between April and June 2015 at approximately monthly intervals... Individuals were captured with a hand aerial net and re- leased after identification"
Sample: 3304
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-03-30 16:41:04
Modified: 2020-01-14 16:40:46
Abundance distribution
41 species
4 singletons
total count 1805
extrapolated richness: 45.4
Fisher's α: 7.465
geometric series k: 0.8466
Hurlbert's PIE: 0.7868
Shannon's H: 2.3646
Good's u: 0.9978
Each square represents a species. Square sizes are proportional to counts.