Mayaro
Basic information
Sample name: Mayaro

Reference: J. S. Beard. 1946. The Mora Forests of Trinidad, British West Indies. Journal of Ecology 33(2):173-192 [ER 4]
Geography
Country: Trinidad and Tobago

Coordinate: 10° 18' N, 61° 0' W
Latlng basis: based on nearby landmark

Geography comments: JA: coordinate based on Mayaro

Environment
Habitat: tropical/subtropical moist broadleaf forest

Substrate: ground surface

WMT: 27.4

CMT: 25.4

MAP: 1720.0

Dry months: 5

Habitat comments: The year is divided into a dry and a rainy season, January-May and June-December respectively. The dry season is never absolutely rainless, and there are frequently at least 5 cm. of rain a month while it is in progress.
JA: climate data based on station 78970 (Piarco International Airport)

Methods
Life forms: trees

Sites: 1

Site area: 40.469

Site length: 20116.801

Site width: 20.117

Sampling methods: belt transect

Sample size: 12552 individuals

Net or trap nights: 0

Size min: 12.0

Basal area status: not stated

Sampling comments: see table 1
counts are based on "1000 chains (20.1 km) of belt transect records" = 66, 000 feet = 20.1168 km (p. 174) and I believe the transect is 1 chain = 66 feet wide because an acre is 1 chain on each side and the total area is apparently 100 acres = 40.469 ha (see p. 179)

Metadata
Sample no: 20

Contributor no: John Alroy

Enterer: John Alroy

Created: 2013-01-23 14:52:37

Modified: 2014-07-15 05:43:29

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
84 species
13 singletons
total count 12552
geometric series index: 117.3
Fisher's α: 12.093
geometric series k: 0.8976
Hurlbert's PIE: 0.5988
Shannon's H: 1.776
Good's u: 0.999
Register
Mora excelsa 7801
Carapa guianensis 1219
Terminalia dichotoma 180
Pterocarpus rahrii 65
Spondias mombia 59
Pentaclethra macroloba 436
Pachira insignis 135
Clathrotropis brachypetala 121
Sterculia caribaea 118
Eschueilera subglandulosa 66
Symphonia globulifera 60
Hernandia sonora 56
Mouriri rhisophoraefolia 42
Guarea guara 33
Tree indet. \"Laurier canelle\"30
Inga spp. 28
Manilkara bidentata 25
Pauteria minutiflora 24
Dinspyros ierensis 23
Virola surinamensis 21
Andira inermis 19
Guazuma ulmifolia 11
Crudia glaberrima 10
Tree indet. \"Olivier\"8
Nertandra surinamensis 6
Pithecellobium jupunba 5
Pisonia salicifolia 4
Hieronyma caribaea 2
Sapium aucuparium 2
Pera arborea 2
Swaetzia pinnata 462
Rownea latifolia 413
Euterpe langloisii 228
Rudgea freemani 72
Hirtella raeemosa 38
Vismia spp. 30
Trichilia smithii 24
Rrosimum aubletii 24
Rheedia sp. 23
Daphnopsis caribaea 21
Cecropia peltata 18
Wartzewiezia coccinea 16
Hirtella triandra 15
Chrysophyllum argenteum 14
Myrtaceae indet.13
Casearia sp. 13
Coccoloba latifolia 12
Rubiaceae indet.10
Coccoloba fallax 10
Rollinia mucosa 9
Tabeburia rufescens 4
Lonchocarpus sericeus 3
Fagara trinitensis 3
Couroupita guianensis 2
Fieus tobagensis 2
Calophyllum lucidum 1
Ceiba occidentalis 1
Vitex divaricata 1
Sideroxylon quadriloculare 1
Hura crepitans 1
Playmiscium trinitatis 1
Mouriri marshallii 1
Sabal sp. 330
Maximiliana elegans 73
Swartzia simplex 7
Sw.
Calliandra guildingii 5
Guarea glabra 5
Toromita eggersii 4
Cordia spp. 3
Miconia spp. 3
Coccoloba venosa 3
Ochroma pyramidale 3
Laetia procera 3
Genipa americana 2
Ocotea oblonga 2
Cupania americana 2
Isertia parviflora 2
Lonchocarpus punctatus 2
Erythrina pallida 1
Roystonea oleracea 1
Trichilia trinitensis 1
Pisonia sp. 1
Tree indet. \"Courapara\"1
Engenia sp. 1