Chandubi Tropical Forest (closed canopy forest)
Basic information
Sample name: Chandubi Tropical Forest (closed canopy forest)
Reference: S. K. Malabika. 2011. Impact of tropical forest degradation on nymphalid butterflies: A case study in Chandubi tropical forest, Assam, India. International Journal of Biodiversity and Conservation 31(2):650-669 [ER 1186]
Geography
Country: India
State: Assam
Coordinate: 26° 52' 30" N, 91° 25' 0" E
Coordinate basis: stated in text as range
Geography comments: "in Kamrup District"
coordinate is the midpoint of ranges stated in the text
altitude 40 to 200 m
coordinate is the midpoint of ranges stated in the text
altitude 40 to 200 m
Environment
Habitat: tropical/subtropical moist broadleaf forest
Protection: forest reserve
Substrate: ground surface
MAP: 3750.0
Habitat comments: "tropical wet evergreen, tropical semi-evergreen and tropical moist deciduous types with presence of occasional sub-tropical broad-leafed hill forest"
"mesothermal humid climate, gets heavy rainfall (300 to 450 cm)" with "four distinct seasons namely: pre-monsoon, monsoon, retreating monsoon and winter"
"mesothermal humid climate, gets heavy rainfall (300 to 450 cm)" with "four distinct seasons namely: pre-monsoon, monsoon, retreating monsoon and winter"
Methods
Life forms: butterflies
Sampling methods: line transect,butterfly nets,baited,other traps,visual
Sample size: 442 captures or sightings
Years: 2009 - 2011
Sampling comments: combination of trapping and Pollard walks: "eight randomly selected permanent line transects... were established 1.5 to 2.0 km apart from each other. The line transects were situated 500 m inside the forest from the edge to reduce β diversity and edge effects respectively. Four line transects were in logged or degraded forest (DF) and four were in unlogged or primary closed forests (CF)... 20 bait traps were hung at 200-m intervals along 4 km of transects at closed forest and degraded forest and sampled butterflies for 7 consecutive days on two occasions covering both winter and summer seasons... 280 trap days in total... In line transacts, the survey walked was performed along each transect at the speed of approximately 10 m per 10 min and recorded or collected all butterflies that were seen using butterfly swiping net in a belt of 10 m width in each side of the transect. All butterflies and habitats data were collected in point transects within 30 m radius"
Metadata
Sample number: 1719
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-07-23 17:08:24
Modified: 2018-06-30 11:16:02
Abundance distribution
73 species
7 singletons
total count 442
geometric series index: 105.1
Fisher's α: 24.906
geometric series k: 0.9592
Hurlbert's PIE: 0.9790
Shannon's H: 4.0416
Good's u: 0.9843
Each square represents a species. Square sizes are proportional to counts.
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