Agua Salud
Basic information
Sample name: Agua Salud
Reference: M. van Breugel, J. S. Hall, D. Craven, M. Bailon, A. Hernandez, M. Abbene, and P. van Breugel. 2013. Succession of ephemeral secondary forests and their limited role for the conservation of floristic diversity in a human-modified tropical landscape. PLoS ONE 8(e82433):1-13 [ER 2105]
Geography
Country: Panama
Coordinate: 9° 13' N, 79° 47' W
Coordinate basis: stated in text
Geography comments: "adjacent to Soberania National Park in the central part of the Panama Canal Watershed"
Environment
Habitat: tropical/subtropical moist broadleaf forest
Altered habitat: secondary forest
Substrate: ground surface
MAP: 2700.0
Habitat comments: "664 ha of land... of which ~530 ha is covered by fallow vegetation and forests of various ages" with the "age of sites included in the analyses [varying] from 2 to 32 years"
Methods
Life forms: trees
Sites: 45
Site area: 9.8
Sampling methods: quadrat
Sample size: 8805 individuals
Size min: 5
Sampling comments: "We chose 52 sites at random within the forested area" each "within a former agricultural field or cattle pasture" but some were unsuitable, so the authors "used a total of 45 secondary forest dynamic (SFD) sites and 98 SFD plots for analysis" (the first figure applies to sites = paired quadrats and the second figure applies to the quadrats per se)
"we established a 20 x 50 m plot on the upper portion and another plot on the lower portion of the same slope" across the sites, so the total sampled area is 98 x 20 x 50 m = 9.8 ha
entered counts are for the > 5 cm size class only because "In one half of each plot, all woody, non-climbing plants with 1–5 cm DBH" were also censused but in the other half this size class was not
total quadrat basal area is clearly known to the authors but not stated anywhere
"we established a 20 x 50 m plot on the upper portion and another plot on the lower portion of the same slope" across the sites, so the total sampled area is 98 x 20 x 50 m = 9.8 ha
entered counts are for the > 5 cm size class only because "In one half of each plot, all woody, non-climbing plants with 1–5 cm DBH" were also censused but in the other half this size class was not
total quadrat basal area is clearly known to the authors but not stated anywhere
Metadata
Sample number: 2055
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-06-12 17:06:39
Modified: 2016-06-12 07:06:39
Abundance distribution
257 species
63 singletons
total count 8805
geometric series index: 418.3
Fisher's α: 49.562
geometric series k: 0.9738
Hurlbert's PIE: 0.9632
Shannon's H: 4.0000
Good's u: 0.9928
Each square represents a species. Square sizes are proportional to counts.
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