CompositeLong: Compile index estimates for Pacific Flyway data book in one...
In USFWS/AKaerial: Analysis of Alaska Region Aerial Survey Data

CompositeLong

R Documentation

Compile index estimates for Pacific Flyway data book in one long format

Description

CompositeLong compiles appropriate estimates from multiple surveys for Taverner's geese, Pacific whitefronts, mid-continent whitefronts, western tundra and Pacific coast trumpeter swans, and lesser Canada geese.

Usage

CompositeLong(
  tavs.year = c(1985:2024),
  pw.year = c(1985:2024),
  tusw.year = c(1985:2024),
  lesser.year = c(1964:2024),
  mcw.year = c(1964:2024),
  trsw.year = c(1964:2024),
  versioning = FALSE
)

Arguments

`tavs.year`	range of years for the Taverner's geese composite table, defaults to 1985-2023
`pw.year`	range of years for the Pacific white-fronted goose composite table, defaults to 1985-2023
`tusw.year`	range of years for the western tundra swan composite table, defaults to 1985-2023
`lesser.year`	range of years for the lesser Canada goose composite table, defaults to 1964-2023
`mcw.year`	range of years for the mid-continent white-fronted goose composite table, defaults to 1964-2023
`trsw.year`	range of years for the Pacific coast trumpeter swan composite table, defaults to 1964-2023

Details

USFWS-MBM-Alaska Region surveys are used in harvest management decisions by the Pacific Flyway. Although management plans generally use a single survey index to decide appropriate management actions, 6 species require a composite index across 2 or more Alaska Region surveys. These species and their composite indices are:

Taverner's geese (TAVS) - All strata from the Arctic Coastal Plain (ACPHistoric), CCGO in the "low" stratum or at latitudes > 63 on the Yukon-Kuskokwim Delta (YKGHistoric), strata 10, 11, and 99 (clipped section of 9) on the WBPHS (WBPHSHistoric)
Pacific white-fronted geese - GWFG on the Yukon-Kuskokwim Delta (YKGHistoric) or in strata 8 or 99 on the WBPHS (WBPHSHistoric)
Western tundra swans (TUSW) - TUSW or SWAN on the Yukon-Kuskokwim Delta (YKGHistoric) or in strata 8, 99, 10, or 11 on the WBPHS (WBPHSHistoric)
Lesser Canada geese - CCGO in strata 1, 2, 3, 4, or 12 on the WBPHS (WBPHSHistoric)
Mid-continent white-fronted geese - GWFG in strata 3, 4, 5, 6, 10, or 11 on the WBPHS (WBPHSHistoric) and all GWFG on the Arctic Coastal Plain (ACPHistoric)
Pacific coast trumpeter swans (TRSW) - TRSW or SWAN in strata 1, 2, 3, 4, 6, or 7 on the WBPHS (WBPHSHistoric)

Note that WBPHS stratum 9 is clipped and renamed 99 to avoid double counting birds in an area surveyed on the Yukon-Kuskokwim Delta surveys. The default range of years for each species is set to the earliest year in which all surveys that make up the index were conducted.