BirdGuildSummary: BirdGuildSummary

In NCRN/NCRNbirds: Data analysis and visualization for NPS I&M bird monitoring.

BirdGuildSummary

Description

Calculates a summary of guild membership across point counts.

Usage

BirdGuildSummary(
  object,
  years = NA,
  points = NA,
  visits = NA,
  times = NA,
  output = "dataframe",
  ...
)

Arguments

object	An NCRNbirds object a list of such objects, or a data.frame like that produced by birdRichness().
years	A numeric vector. Indicates which years should be summarized.
points	A character vector of point names. Only these points will be used.
visits	A length 1 numeric vector, defaults to NA. Returns data only from the indicated visits.
times	A numeric vector of length 1. Returns only data from points where the number of years that a point has been vistied is greater or equal to the value of times. This is determined based on the data found in the Visits slot.
output	Either "dataframe" (the default) or "list". Note that this must be in quotes. Determines the type of output from the function.
...	Additional arguments passed to BCI

Details

This calculates a summary of the percent guild membership across point counts.

Value

Returns a data.frame of the mean and SD of percent guild membership.

References

O'Connell, TJ, LE Jackson and RP Brooks. 1998. The Bird Community Index: A Tool for Assessing Biotic Integrity in the Mid-Atlantic Highlands. Final Report prepared for U. S. Environmental Protection Agency, Region III.

O'Connell TJ, LE Jackson and RP Brooks. 2000. Bird guilds as indicators of ecological condition in the central Appalachians. Ecological Applications 10:1706-1721.

NCRN/NCRNbirds documentation built on Aug. 28, 2023, 12:12 p.m.