Cevennes National Park (S2)
Basic information
Sample name: Cevennes National Park (S2)
Reference: J. Fonderflick, A. Besnard, A. Beuret, M. Dalmais, and B. Schatz. 2014. The impact of grazing management on Orthoptera abundance varies over the season in Mediterranean steppe-like grassland. Acta Oecologica 60:7-16 [ER 2151]
Geography
Country: France
Coordinate: 44° 17' N, 3° 31' E
Coordinate basis: stated in text
Geography comments: "on a high limestone plateau (Causse Mejean)" and specifically on "an experimental farm... managed by the Cevennes National Park"
altitude 950 to 1100 m
altitude 950 to 1100 m
Environment
Habitat: temperate savanna
Altered habitat: pasture
Protection: national/state park
Substrate: ground surface
WMT: 23.0
CMT: 3.0
MAP: 1000.0
Habitat comments: "steppe-like grasslands with some cultivated zones" with a "mixed continental and Mediterranean climate... This study was carried out in seven pasture areas, five of which had been grazed by sheep every year for at least 10 years, and two of which had not been grazed (ungrazed grassland) for at least six years and were used as control plots"
Methods
Life forms: orthopterans
Sites: 7
Sampling methods: line transect,hand capture,visual
Sample size: 1214 individuals
Years: 2010
Seasons: summer
Sampling comments: "We randomly placed 25 10-m2 plots in each of the seven pastures" and performed a sampling session "lasting 4-5 days" and specifically starting on 26 July; "we counted and identified Orthoptera (Ensifera and Califera) along a permanent 10-m2 line-transect (10 m in length 1 m in width, defined by two permanent wooden markers)"; most identifications were visual but "a local sample" was drawn to establish "a mean ratio of the two species" in each of three genera; the ratio apparently does not affect the actual reported counts
Metadata
Sample number: 2145
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-07-25 17:20:11
Modified: 2016-07-25 07:20:11
Abundance distribution
16 species
1 singleton
total count 1214
geometric series index: 19.0
Fisher's α: 2.603
geometric series k: 0.6573
Hurlbert's PIE: 0.7002
Shannon's H: 1.5861
Good's u: 0.9992
Each square represents a species. Square sizes are proportional to counts.
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