lakshadweep: Lakshadweep Archipelago coral fish community reassembly data...
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Lakshadweep Archipelago coral fish community reassembly data (expanded)
Description
A list with three data frames containing presence-absence data for the
reassembly proccess of coral fish communities in three atolls (Agatti, Kadmat
and Kavaratti) of the Lakshadweep Archipelago in India. These data contains a number of
replicates (transects) per sampling time. It is in this respect that expands
alonso community data (see island R package).
Format
A list with three dataframes from the 3 different atoll. The dataframe has in columns:
- Species
Name of the species found
- Atoll
Atoll surveyed
- Guild
Feeding strategy of the surveyed species
- Presence-absence data
Several columns corresponding to the year in which the surveys were done. Year repetition means repeated sampling of the same atoll at the same time. Presences are represented by 1 and true absencestrue or undetected presences by 0.
Details
Surveys were conducted from 2000 to 2013 in order to follow community reassembly after a coral mass mortality event in the relatively unfished Lakshadweep Archipelago. For most years, transects were taken in four locations per atoll. Although there might be some underlying heterogeneity, these transects are approximately taken as true replicates.
Note
Detectability per transect results to be of about 0.5, which means that the parameter 'Detectability' per atoll goes up to almost 0.94 if four transects per sampling time are taken (1-0.5^4).
Source
Alonso, D., Pinyol-Gallemi, A., Alcoverro T. and Arthur, R.. (2015) Fish community reassembly after a coral mass mortality: higher trophic groups are subject to increased rates of extinction. Ecology Letters, 18, 451–461.
