Whooping Crane Winter Abundance Survey Protocol Aransas National Wildlife Refuge

Metadata Updated: January 29, 2016

This protocol is primarily designed to provide a mechanism for monitoring trends in whooping crane abundance on their wintering grounds along the Texas gulf coast. Secondarily, the protocol provides mechanisms for monitoring recruitment rates, the number of whooping crane pairs that recruited young into the winter flock, and whooping crane winter range expansion. Finally, this protocol is designed to augment planning and conservation efforts with information about the relationships among local whooping crane abundance and habitat or environmental characteristics.The survey methods provided in this protocol are a defensible, statistically rigorous means to estimate the annual abundance, and associated degree of confidence, of whooping cranes wintering within the sampling frame. Furthermore, the survey methods provide for defensible estimates of the number of whooping crane pairs and the number of pairs that recruited young into the winter flock, which are downlisting criteria identified by the International Recovery Plan for whooping cranes. Finally, the use of hierarchical distance sampling provides spatiallyexplicit maps of whooping crane abundance. The predictive models used to create these maps provide a better understanding of whooping crane resource use, which will guide whooping crane conservation efforts. They also inform management, identify potentially important future whooping crane habitat, and direct land conservation and development initiatives. This protocol has a digital object identifier. doi:10.7944W3159J

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date July 9, 2014
Metadata Updated Date January 29, 2016
Modified 2014-03-26T00:00:00Z

Metadata Source

Harvested from fwsjson

Additional Metadata

Resource Type Dataset
Metadata Created Date July 9, 2014
Metadata Updated Date January 29, 2016
Publisher U.S. Fish and Wildlife Service
Identifier FWS_ServCat_28073
Richard Easterbrook
Maintainer Email
Accesslevel public
Accesslevelcomment If a link exists, you may download the associated files. Otherwise, please contact the associated Point of Contact to determine the best means to access the information.
Bureaucode 010:18
Harvest Object Id f9ab0425-91a1-43a5-aa2b-cf003104b512
Harvest Source Id 269d76fb-fa7e-49d2-a6bb-3a9e3f1bee70
Harvest Source Title fwsjson
Modified 2014-03-26T00:00:00Z
Programcode 010:094, 010:028
Source Datajson Identifier True
Source Hash 178211101e559533200f526b0769f2ad00f2a060
Source Schema Version 1.0
Spatial Aransas National Wildlife Refuge

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