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filename: s3pt5_coralBiodiversity_41sites_1999_2023.csv
date: 2026-07-06 02:10:02.713262
description: Calculated species biodiversity indices at each site. Indices include the Inverse Simpson Diversity Index, Species Richness, Shannon Diversity Index, and Pielou's Evenness Index. The data also includes the absolute coral cover at each site.
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column names:
program year site period replicate coralcover coralcover_date S H J D inverse_simpson

column: program
description: monitoring program
Data Type: character
Unique Values: (showing all 2 entries)
   TCRMP
   VINPS

column: year
description: survey year
Data Type: integer
Mean: 2012.73632918246
Min: 1999
Max: 2023

column: site
description: survey site
Data Type: character
Unique Values: (showing all 41 entries)
   Buck Island STX
   Cane Bay
   Coculus Rock
   Eagle Ray
   Fish Bay
   Jacks Bay
   Lang Bank Red Hind FSA
   Magens Bay
   Salt River West
   Sprat Hole
   Botany Bay
   Brewers Bay
   Black Point
   Castle
   College Shoal East
   Flat Cay
   Grammanik Tiger FSA
   Great Pond
   Hind Bank East FSA
   Mutton Snapper FSA
   Savana
   Seahorse Cottage Shoal
   South Capella
   Buck Island STT
   Meri Shoal
   South Water
   St James
   Kings Corner
   Cane Bay Deep
   Lang Bank EEMP
   Salt River Deep
   Coral Bay
   Ginsburg Fringe
   Buck Island STX Deep
   VIIS-Newfound
   VIIS-Yawzi
   BUIS-Western Spur and Groove
   VIIS-Mennebeck
   BUIS-South Fore Reef
   VIIS-Haulover
   VIIS-Tektite

column: period
description: monitoring period
Data Type: character
Unique Values: (showing all 6 entries)
   Annual
   PeakBL
   WS
   SCTLD
   PostBL
   NA

column: replicate
description: replicate number/identifier
Data Type: integer
Mean: 6.3245804006497
Min: 1
Max: 20

column: coralcover
description: absolute coral cover (%)
Data Type: numeric
Mean: 11.9892561780735
Min: 0
Max: 74.23

column: coralcover_date
description: date that the survey was conducted
Data Type: character
Unique Values: (showing 10 most frequent of 598 entries)
   2016-09-01
   2023-10-17
   2020-07-14
   2013-10-23
   2020-02-04
   2023-10-23
   2008-09-02
   2003-03-10
   2003-09-29
   2004-05-10

column: S
description: species richness, or the number of unique coral species observed
Data Type: integer
Mean: 6.25237063126524
Min: 1
Max: 17

column: H
description: Shannon Diversity Index, or the diversity of coral species observed. this takes into account both species abundance and evenness. Higher values indicate greater diversity
Data Type: numeric
Mean: 1.30835714025017
Min: 0
Max: 2.57779369455486

column: J
description: Pielou's Evenness Index, which measures how evenly individuals are distributed among the species. Values range from 0 (uneven distribution) to 1 (complete evenness)
Data Type: numeric
Mean: 0.74951679688007
Min: 0.0463231166250455
Max: 1

column: D
description: Simpson's Index, which measures the probability that two individuals randomly selected will belong to the same species. Lower values mean higher diversity
Data Type: numeric
Mean: 0.372742231053897
Min: 0.0920283164050477
Max: 1

column: inverse_simpson
description: Inverse Simpson's Index, which is the reciprocal of the Simpson's Index. Higher values indicate greater diversity, emphasizing dominant species
Data Type: numeric
Mean: 3.43423179159266
Min: 1
Max: 10.866220735786