Tower Clearing (dry season, weeks 2-14)
Basic information
Sample name: Tower Clearing (dry season, weeks 2-14)
Sample aka: Barro Colorado Island
Reference: J. D. Ackerman. 1983. Diversity and seasonality of male euglossine bees (Hymenoptera: Apidae) in central Panamá. Ecology 64(2):274-283 [ER 2447]
Geography
Country: Panama
Coordinate: 9° 9' N, -79° 51' W
Latlng basis: based on nearby landmark
Geography comments: "The Tower Clearing lies at the summit and approximate geographical center of BCI" (coordinate based on Barro Colorado Island)
Environment
Habitat: tropical/subtropical dry broadleaf forest
Substrate: ground surface
Habitat comments: " semievergreen tropical forest... or tropical moist forest... a tropical monsoon climate... annual rainfall ranges from 190 to 360 cm... The climate is distinctly seasonal with a dry period of 3-4 mo beginning near mid-December"
Methods
Life forms: orchid bees
Sites: 1
Sampling methods: no design, baited, hand capture, visual
Sample size: 6887 individuals
Years: 1979
Days: 13
Seasons: dry
Net or trap nights: 0
Basal area status: not applicable
Sampling comments: "16 chemical baits" were used, and "most are known constituents of floral fragrance... Each chemical was applied to separate 7 x 7 cm pads of clean herbarium blotter paper... From 0830 to 1230 I presented the chemical baits... At 15-min intervals I recorded all visitors to each of the compounds... Only vouchers and taxonomically difficult species were captured... Every week from mid-February 1979 to mid-March 1980, I baited for bees at the Tower Clearing. Thereafter, I baited once every 4 wk through June 1980" but these data are for weeks 2 through 14 only
Metadata
Sample no: 2706
Contributor no: John Alroy
Enterer: John Alroy
Created: 2017-04-16 18:00:11
Modified: 2017-04-16 08:00:11
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
33 species
2 singletons
total count 6887
geometric series index: 37.8
Fisher's α: 4.5
geometric series k: 0.7889
Hurlbert's PIE: 0.8458
Shannon's H: 2.2897
Good's u: 0.9997
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