Genetic Structure of California Gnatcatcher populations in southern California from 2012 through 2013

These data were collected to determine how genetic variation is arrayed across remaining populations of gnatcatchers, allowing inference about individual movement and gene flow patterns among those populations. The work focused on determining the extent to which gnatcatcher aggregations function as an interconnected metapopulation, with aggregations exchanging migrants across a fragmented landscape and freely capable of re-establishing in patches from which they have been previously extirpated. These data will be used in combination with habitat and corridor indices to determine whether genetic connectivity is facilitated by stepping stone arrays of suitable habitat, or whether birds are unable to move across unsuitable habitat regardless of distance. The genetic data will also provide information on distances that individual birds will disperse for breeding.
These data were used to support the following publication:

Data e Risorse

Campo Valore
accessLevel public
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identifier USGS:58953a18e4b0fa1e59b99e13
metadata_type geospatial
modified 20200830
old-spatial -118.93392, 32.54091, -116.79164, 34.26956
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
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spatial {"type": "Polygon", "coordinates": [[[-118.93392, 32.54091], [-118.93392, 34.26956], [ -116.79164, 34.26956], [ -116.79164, 32.54091], [-118.93392, 32.54091]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • 2012
  • 2013
  • amerigeo
  • amerigeoss
  • california-south
  • ckan
  • coastal-ecosystems
  • genetics
  • geo
  • geoss
  • los-angeles-county
  • national
  • north-america
  • orange-county
  • riverside-county
  • san-bernardino-county
  • san-diego-county
  • southern-california
  • united-states
  • usgs-58953a18e4b0fa1e59b99e13
  • ventura-county
isopen False
license_id notspecified
license_title License not specified
maintainer Barbara E Kus
maintainer_email barbara_kus@usgs.gov
metadata_created 2025-11-22T23:22:36.316411
metadata_modified 2025-11-22T23:22:36.316415
notes These data were collected to determine how genetic variation is arrayed across remaining populations of gnatcatchers, allowing inference about individual movement and gene flow patterns among those populations. The work focused on determining the extent to which gnatcatcher aggregations function as an interconnected metapopulation, with aggregations exchanging migrants across a fragmented landscape and freely capable of re-establishing in patches from which they have been previously extirpated. These data will be used in combination with habitat and corridor indices to determine whether genetic connectivity is facilitated by stepping stone arrays of suitable habitat, or whether birds are unable to move across unsuitable habitat regardless of distance. The genetic data will also provide information on distances that individual birds will disperse for breeding. These data were used to support the following publication:
num_resources 2
num_tags 21
title Genetic Structure of California Gnatcatcher populations in southern California from 2012 through 2013