John R Sauer

The North American Breeding Bird Survey, Analysis Results 1966 - 2018

This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented for 548 species of birds in 4 spreadsheets containing trend estimates and annual indices for 2 time periods. Estimates are derived for each species using the 1 of 4 alternative models, and a cross-validation model selection procedure was used to select the best model for each species.

Categories: Data; Tags: Bird Annual Indices, Bird Lists, Bird Trend Estimates, Birds, Breeding Bird Density, All tags... Breeding Bird Survey, Breeding Bird Survey Analysis, Canada, Decision Science and Populations, North American Breeding Bird Survey, Population Estimation, Statistical Analysis, USGS Science Data Catalog (SDC), United States of America, Wildlife Biology, Fewer tags

The North American Breeding Bird Survey, Analysis Results 1966 - 2017

This data product consists of a database of population change and relative abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented in 6 separate spreadsheets for 2 methods of trend summary and 3 time periods for 548 species of birds. Metadata for the BBS data used to produce these estimates is available from a USGS ftp site (ftp://ftpext.usgs.gov/pub/er/md/laurel/BBS/DataFiles/). Metadata associated with this data product provides information specific to the analysis results.

Categories: Data; Tags: Bird Annual Indices, Bird Lists, Bird Trend Estimates, Birds, Breeding Bird Survey, All tags... Breeding Bird Survey Analysis, Canada, USGS Science Data Catalog (SDC), United States of America, Wildlife Biology, Fewer tags

This data product provides summary information, by species, of changes in relative visibility of birds (phenology effects) through the April - July time period in which the North American Breeding Bird Survey (BBS) is conducted. Data are presented for 408 species of birds. Seasonal phenology effects are presented for selected latitudes and years, documenting changes in visibility and a variety of statistics to allow users to assess the significance of those effects. Results are presented as csv files, stored in zip files by first letter of the species common name and a single zip file containing csv files for 408 species. Links are provided to Child Items containing additional information in species-specific R...

Tags: Bird Breeding Phenology, Bird Trend Estimates, Breeding Bird Survey, Breeding Bird Survey Analysis, Canada, All tags... Climate Change, USGS Science Data Catalog (SDC), United States of America, Wildlife Biology, Fewer tags

The North American Breeding Bird Survey, Analysis Results 1966 - 2019

This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented for 548 species of birds in 4 spreadsheets containing trend estimates and annual indices for 2 time periods. Estimates are derived for each species using the 1 of 4 alternative models, and a cross-validation model selection procedure was used to select the best model for each species. Metadata for the BBS data used to produce these estimates is available from a USGS ftp site (ftp://ftpext.usgs.gov/pub/er/md/laurel/BBS/DataFiles/). Metadata associated with this data product provides information specific to the analysis results.

Categories: Data; Tags: Bird Annual Indices, Bird Lists, Bird Trend Estimates, Birds, Breeding Bird Density, All tags... Breeding Bird Survey, Breeding Bird Survey Analysis, Canada, Ecology, Migratory Birds, North American Breeding Bird Survey, Population Estimation, Statistical Analysis, USGS Science Data Catalog (SDC), United States of America, Wildlife Biology, Fewer tags

Researchers from North Carolina State University and the USGS integrated models of urbanization and vegetation dynamics with the regional climate models to predict vegetation dynamics and assess how landscape change could impact priority species, including North American land birds. This integrated ensemble of models can be used to predict locations where responses to climate change are most likely to occur, expressing results in terms of species persistence to help resource managers understand the long-term sustainability of bird populations.

Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2011, Birds, Birds, CASC, Climate Change, All tags... Completed, LCC, Projects by Region, SERAP, Science Tools for Managers, Science Tools for Managers, South Atlantic LCC, South Atlantic Landscape Conservation Cooperative, South Atlantic Landscape Conservation Cooperative, Southeast, Southeast CASC, Wildlife and Plants, Wildlife and Plants, Fewer tags