Barracäo Farm
Basic information
Sample name: Barracäo Farm
Reference: I. C. Fernandes Martins, F. J. Cividanes, S. Ide, and G. Quieroz Haddad. 2012. Diversity and habitat preferences of Carabidae and Staphylinidae (Coleoptera) in two agroecosystems. Bragantia 71(4):471-480 [ER 1178]
Geography
Country: Brazil
State: Säo Paulo
Coordinate: 20° 21' 18" S, 48° 14' 47" W
Coordinate basis: stated in text
Environment
Habitat: tropical/subtropical dry broadleaf forest
Altered habitat: fragment
Substrate: ground surface
Habitat comments: "a forest fragment adjacent to an agricultural crop (soybean, Glycine max L. and corn, Zea mays L.)... The plot was 88.6 ha and was subjected to no-tillage farm practices with soybean-corn rotation for 10 years prior to our study. There is a 48 ha- fragment of seasonal semideciduous forest adjacent to the plot"
Methods
Life forms: ground beetles,rove beetles
Sampling methods: line transect,pitfall traps
Sample size: 1003 individuals
Years: 2004 - 2007
Days: 308
Nets or traps: 48
Net or trap nights: 14784
Sampling comments: "two parallel transects of pitfall traps were installed. Transects were 10 m apart from one another. Each transect was 200 m in length, with 100 m in the crop and 100 m in the forest fragment. Four traps were 1 m apart from one another in the edge between the crop and the forest fragment and the other traps were each 10 m apart from one another. There were 48 traps in total... Sampling was done twice a month during the growing season and once a month in the off-season... for a total of 44 sampling dates... The traps were kept in the field for one week" per date
Metadata
Sample number: 1709
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-07-12 17:11:51
Modified: 2015-07-12 07:11:51
Abundance distribution
79 species
35 singletons
total count 1003
geometric series index: 186.2
Fisher's α: 20.103
geometric series k: 0.9376
Hurlbert's PIE: 0.9260
Shannon's H: 3.0864
Good's u: 0.9651
Each square represents a species. Square sizes are proportional to counts.
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