dietSummaryByPrey: Summarize the importance of a single prey item across bird...
In ahhurlbert/aviandietdb: Avian Diet Database Summary Functions

Description Usage Arguments Examples

View source: R/dietSummaryByPrey.r

This function provides a summary of quantitative diet data for a given prey type

dietSummaryByPrey(
  preyName,
  preyLevel,
  preyStage = "any",
  dietType = NULL,
  season = NULL,
  region = NULL,
  yearRange = c(1700, 2100),
  speciesMean = FALSE,
  db = NULL
)

`preyName`	scientific name of prey item to summarize, which may be at any taxonomic level denoted by preyLevel
`preyLevel`	taxonomic level of prey; possibile values include 'Kingdom', 'Phylum', 'Class', 'Order', 'Family', 'Genus', or 'Species'
`preyStage`	defaults to 'any'; one can alternatively specify 'adult', 'larva', or 'pupa' to narrow summary results to those that match these specific life stages
`dietType`	the way in which diet data were quantified; possible values include percent by 'Items', 'Wt_or_Vol' (weight or volume), or 'Occurrence'; defaults to NULL, in which case summaries will be provided for each Diet_Type for which data exist.
`season`	the season for which a diet summary should be conducted; possible values include 'spring', 'summer', 'fall', 'winter', or 'any'; defaults to 'any'.
`region`	the region for which a diet summary should be conducted; typically these are US or Mexican state or Canadian province names; by default all regions will be included.
`yearRange`	a vector specifying the minimum and maximum years over which a diet summary should be conducted; by default all years will be included.
`speciesMean`	logical value indicating whether to average across all regions, years and seasons to yield a single diet value per bird species-Diet_Type combination; default is FALSE in which case all diet analyses in which the prey taxon appears will be listed separately.
`db`	used to specify an alternative Diet Database object, mainly for testing; the default results in the main 'dietdb' data object being used.