Skip to Main Content
Nutrition and parturition date effects on elk: potential implications for research and management.Author(s): John G. Cook; Bruce K. Johnson; Rachel C. Cook; Robert A. Riggs; Tim DelCurto; Larry D. Bryant; Larry L. Irwin
Source: In: Transactions of the 69th North American Wildlife and Natural Resources Conference: 604-624
Publication Series: Scientific Journal (JRNL)
PDF: Download Publication (1.3 MB)
DescriptionUnderstanding and managing those mechanisms that affect population dynamics comprise, perhaps, the most fundamental aspect of wildlife management (Caughley 1977). Biologists generally categorize these mechanisms as either top-down (predator-driven) or bottom-up (habitat- or animal-density driven). Bottom-up influences involve imbalances between increasing animal density and key habitat resources. For large ungulates, abundance and nutritive value of forage are commonly thought to be the primary mediators of bottom-up regulation (Caughley 1979, McCullough 1984). Certainly, nutritional deficiencies can have extensive and often acute effects on reproduction, growth, development and survival (Verme and Ullrey 1984, Cook 2002).
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCook, John G.; Johnson, Bruce K.; Cook, Rachel C.; Riggs, Robert A.; DelCurto, Tim; Bryant, Larry D.; Irwin, Larry L. 2004. Nutrition and parturition date effects on elk: potential implications for research and management. In: Transactions of the 69th North American Wildlife and Natural Resources Conference: 604-624
- Modeling elk nutrition and habitat use in Western Oregon and Washington
- Investment in constitutive immune function by north American elk experimentally maintained at two different population densities
- Estimating carrying capacity with simultaneous nutritional constraints.
XML: View XML