Published April 18, 2019 | Version v1
Dataset Open

Sea duck network analysis dataset

  • 1. University of Rhode Island

Description

This data file consists of habitat centroids used to construct network models for sea ducks in Eastern North America and is associated with the manuscript "Spatially-explicit network analysis reveals multi-species annual-cycle movement patterns of sea ducks" published in Ecological Applications. Columns are organized as follows:

id - unique identifier

species - species from which the centroid was obtained (BLSC = black scoter, COEI = common eider, LTDU = long-tailed duck, SUSC = surf scoter, WWSC = white-winged scoter)

stage - period of the annual cycle to which the centroid belongs (W = winter, B = breeding, S = spring staging, M = fall staging and molt, WM = winter migration, BM = breeding migration, MM = molt migration, SM = spring migration)

site - position of centroid within season (i.e., W1 = first site occupied during winter, W2 = second site occupied, etc.)

cycle - number of annual cycles following transmitter attachment (1 = first cycle after attachment, 2 = second cycle after attachment, etc.)

sex - sex of individual (M = male, F = female)

age - age of individual (HY = hatch year, SY = second year, TY = third year, ASY = after second year, ATY = after third year, AHY = after hatch year

capture_reg - general area where individual was captured

capture_subreg - specific region within capture region where individual was captured

lon - longitude of centroid

lat - latitude of centroid

duration - number of days spent at centroid

start - date of arrival at centroid

end - date of departure from centroid

jstart - Julian date of arrival at centroid

jend - Julian date of departure from centroid

season - season of annual cycle in which centroid occurred (W = winter, F = fall, B = breeding, S = spring)

year - calendar year in which centroid began

to - node in which centroid is grouped

from - node in which previous centroid is grouped (i.e., node in which indiviual was located before moving to present node)

to_sea - season of annual cycle in which centroid occurred

from_sea - season of annual cycle in which previous centroid occurred

type - movement type to centroid; the first letter represents the season (coded as in "season" column), and the second represents the nature of the movement (WD = dispersal within a season, M = migration among seasons)

type2 - same as "type", but with dispersal movements coded by the stage in which they occur (W = winter, B = breeding, SM = spring migration, WM = winter migration)

count_ind_sp - total number of tracked individuals of the species represented by centroid

weight - base centroid weight (all centroids equal, deployments excluded)

wt_sp - species-adjusted centroid weight: for centroid x in species i, weightx = (N centroidstotal) × (N centroidsi)-1

wt_dur - duration-adjusted centroid weight: for centroid x, weightx = (days at centroid location) × 365-1

wt_sp_sex - species-and-sex-adjusted centroid weight: for centroid x, species i, and sex s, weightx = (N centroidstotal) × (N individualsis)-1

wt_ind -  individual-adjusted centroid weight: for centroid x in individual j, weightx = (N centroidsj)-1

wt_ind_sp - individual-and-species-adjusted centroid weight: for centroid x, individual j, and species i, weightx = (N centroidsj)-1 × (N individualsi)-1

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all_centroids_w31.csv

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