| dc.contributor.author | Porter, David K. |
| dc.contributor.author | Ryder, Ronald A. |
| dc.contributor.institution | Colorado State University. Natural Resource Ecology Laboratory |
| dc.contributor.institution | U.S. International Biological Program. Grassland Biome |
| dc.coverage.spatial | Pawnee National Grassland (Colo.) |
| dc.date.accessioned | 2015-07-28T15:36:51Z |
| dc.date.available | 2015-07-28T15:36:51Z |
| dc.date.issued | 1974 |
| dc.description | March 1974. |
| dc.description | On cover: Grassland Biome, Ecosystem analysis studies, U.S. International Biological Program. |
| dc.description | Includes bibliographical references (pages 69-70). |
| dc.description.abstract | Accuracy of several avian census methods was investigated on ten 8.1-ha plots and along a 39.4-km roadside count. Methods included spot-mapping, flushing, total counts, ratios, and roadside and Emlen strip count procedures. Another index of breeding activities was obtained through live-trapping, banding, and color-marking. Data were gathered on nesting success, nesting phenology, nest site selectivity, and growth dates for nestlings. |
| dc.format.medium | born digital |
| dc.format.medium | technical reports |
| dc.identifier.uri | http://hdl.handle.net/10217/15970 |
| dc.language | English |
| dc.publisher | Colorado State University. Libraries |
| dc.publisher.original | Natural Resource Ecology Laboratory, Colorado State University, |
| dc.relation.ispartof | Technical Reports - International Biological Program (IBP) |
| dc.relation.ispartof | Technical report (U.S. International Biological Program Grassland Biome); no 252 |
| dc.subject.lcsh | Bird populations -- Colorado -- Pawnee National Grassland |
| dc.subject.lcsh | Birds -- Productivity -- Colorado -- Pawnee National Grassland |
| dc.subject.lcsh | Birds -- Colorado -- Pawnee National Grassland -- Statistics |
| dc.subject.lcsh | Bird surveys -- Colorado -- Pawnee National Grassland |
| dc.title | Avian density and productivity studies and analysis on the Pawnee Site in 1972 |
| dc.type | Text |
