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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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Adaptive Strategies and Population of Northern Grouse
Volume II. Theory and Synthesis
Arthur T. Bergerud and Michael W. Gratson, Editors
University of Minnesota Press, 1988

Adaptive Strategies and Population 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.

The first volume contains eleven studies of eight grouse species; the second contains primarily the work of Bergerud, which utilizes the evidence in the first volume to advance theories of behavior and offer new demographic insights.

This second volume contains primarily the work of Bergerud, which utilizes the evidence in the first volume to advance theories of behavior and offer new demographic insights.

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front cover of Gone Again Ptarmigan
Gone Again Ptarmigan
Jonathan London
University of Alaska Press, 2013
Every winter, willow ptarmigan birds put on new feathery coats, softly white and perfect for hiding in snow. In the spring they take on a spotted brown more suited to nesting. This is just one of the captivating changes that take place in the Far North as animals adjust to the changing seasons. Gone Again Ptarmigan allows readers to be wilderness explorers. Following the course of a year, readers learn how the birds change their plumage, forage, and evade predators, crossing paths with many of the other creatures sharing their land. With lively acrylic illustrations and an author’s note at the end to extend learning, Gone Again Ptarmigan is a beautiful introduction to the adaptable animals of the wild North. 
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