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Adaptive Strategies and Population Ecology of Northern Grouse
Volume 1. Population Studies
Arthur T. Bergerud and Michael W. Gratson, Editors
University of Minnesota Press, 1988

Adaptive Strategies and Population Ecology of Northern Grouse was first published in 1988. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.

This book is at once a major reference to the species of grouse that inhabit North America and the Holarctic and a synthesis of all the available data on their ecology, sociobiology, population dynamics, and management. The book undertakes to answer two long-standing questions in population ecology: what actually regulates the numbers within a population, and what are the breeding and survival strategies evolved in this northern environment? For Volume I, editors Arthur T. Bergerud and Michael W. Gratson have drawn together their own work and that of colleagues in North America, Iceland, and Norway—in all, eleven research studies, averaging six years' duration, on eight species of grouse. These studies deal with the blue and ruffed grouse of the forest habitat; the sharp-tailed grouse, prairie chicken, and sage grouse of the prairie or steppe; and the white-tailed, rick, and willow ptarmigan found in alpine and arctic tundras. The authors describe the rich repertoire of behavior patterns developed by the hen and the cock to achieve their two primary objectives—first, to stay alive, and then to breed. Volume II, primarily the work of Bergerud, synthesizes the evidence in Volume I and in the grouse research literature from a theoretical perspective. Several potentially controversial sociobiological hypotheses are advanced to account for flocking behavior, migration, dispersal, roosting and feeding behavior, mate choice and mating systems. The demographic analysis provides new insights into cycles of abundance, the limitation of numbers, and the demographic factors that determine densities. The contributors, besides Bergerud and Gratson: R.C. Davies, A. Gardarson, J.E. Hartzler, R.A. Huempfner, D.A. Jenni, D.H. Mossop, S. Myrberget, R.E. Page, R.K. Schmidt, W.D. Svedarsky, and J.R. Tester.

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front cover of Population Ecology of Roosevelt Elk
Population Ecology of Roosevelt Elk
Conservation and Management in Redwood National and State Parks
Butch Weckerly
University of Nevada Press, 2017
The Roosevelt elk populate the parks along California’s north coast and comprise the largest land mammals in the parks, some weighing up to 1,200 pounds. They are a stable terrestrial land mammal population, a fixture in the parks, but still require ongoing stewardship and management.
 
In a study spanning more than twenty years, Weckerly made key observations and conducted various investigations under a multitude of ecological conditions. Few authors have dedicated this much time and effort into a single research area. It is a testament to perseverance that his groundbreaking study of the Roosevelt elk was so successful. He was able to document the independent dynamics of several herds of female elk, experience the extinction of one of their subpopulations, and record scientific conclusions in the context of resiliency and redundancy of the elk population.
 
This book will be of considerable interest to those who investigate the ecology of big game animals, including naturalists, hunters, and individuals with particular interest in Redwood State and National Parks. It is an important book that contributes substantially to the persistence and viability of Roosevelt elk in the parks and the surrounding area.
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