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Birds: Papers 1

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(ECP and CTSP grantees, reports, and other sites of interest for conservation geograpy, mapping and GIS. Grantees are coded by program and year of grant at the end of their name/state, i.e. e91 means ECP grant in 1991. c=cstp, cm=ctsp-mac, cs=ctsp-software)

papers and ESRI Conference Proceedings

Application of GIS to Home Range Analysis in the Island Scrub Jay . (Rodd Kelsey California State University 5331 The Toledo Long Beach, CA 90803 Telephone: 310-439-4025 Fax: E-mail: . The Island Scrub Jay (Aphelocoma insularis) is an endemic bird species on Santa Cruz Island, California. A significant amount of work has been accomplished over the last twenty years concerning the demography of this species. However, very little work has been completed on its home range and habitat utilization. The jay defends territories in a variety of habitats across the Island. I will determine home range size in different habitats across the Island. In addition, these home range sizes will be utilized to estimate Island population that can then be applied to minimum viable population analysis. This study will use GIS techniques to map territories and estimate total Island population size. Scanned aerial photos will be georectified and used for digitizing spots maps obtained in the field. The coordinates for these territories will then be exported to CALHOME, an external home range analysis program. Once home range sizes are determined, they will be combined with existing digital vegetation maps to estimate total population size.

Applying GIS and Remote Sensing to Avian Research: A Case Study on the Ouachita National Forest (1996 Paper, Robert C. Weih, Philip A. Tappe, Chris W. Bennett, Ronald E. Thill)...After collating the GIS layers, 524 bird census points were established along 72 miles of transect. The transects were positioned to sample many different combinations of vegetation spectral types and physical features of the landscape, as determined by the GIS analysis. All bird census points were then located in the field and their positions recorded with differentially corrected Global Positioning System (GPS) coordinates. Habitat information such as basal area, canopy height, canopy coverage, vegetation density, and vegetation vertical profiles were also measured at each bird census point....The spatial arrangement of these categories was used to examine previously over or under sampled areas and to modify bird census points for the 1996 sampling season. In addition, analyses of avian communities as they relate to stand and landscape level habitat parameters were initiated that incorporated the spatial modeling features of GIS.

Migration Maps for Some North American Neotropical Migrants, by Sam Droege and Charles Wetherill .(Patuxent Wildlife Research Center USGS/BRD 12100 Beech Forest Road Laurel, MD 20708 Work: 301-497-5840 Home: 410-798-6759 Email: ) ..."These maps were used as handout materials in the 1993 Migration Monitoring Workshop. Data were scavenged from a diverse set of bird banding sites and counting programs..."

Multi-scale analysis of bird species relationships by Anne Black, Point Reyes Bird Observatory "Nearly 20 years ago, The Nature Conservancy began restoring natural habitats and flooding regimes in its Cosumnes Nature Preserve....PRBO has been monitoring bird communities in these newly restored sites for the past 10 years. This summer, we will be initiating the first analysis of this data to answer the questions: how do bird communities respond to restoration, and which restoration techniques seem to provide the 'best' habitat most quickly?"

Sites with public conservation and GIS data for downloading

NBS Bird Banding Laboratory (BBL) :(National Biological Survey, 12100 Beech Forest Road, Laurel, MD 20708-4037, TEL 301-497-5790 FAX 301-497-5784 The North American Bird Banding Program is jointly administered by the United States Biological Resource Division and the Canadian Wildlife Service to study the movement, survival, and behavior of birds.

NBS North American Breeding Bird Survey : . (USGS Patuxent Wildlife Research Center, 12100 Beech Forest Road, Suite 4039, Laurel, Maryland 20708-4039 USA, Tel: 301-497-5500 Fax: 301-497-5505) A source of population trend and distribution information for most species of North American birds.


All text by the respective organizations, January 2, 1997

Compilation & web design: Charles Convis, ESRI Conservation Program, April 2, 1996


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