Behavior And Energetics Of Greater White Fronted Geese In Winter
Download Behavior And Energetics Of Greater White Fronted Geese In Winter full books in PDF, epub, and Kindle. Read online free Behavior And Energetics Of Greater White Fronted Geese In Winter ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Energy Dynamics, Foraging Ecology, and Behavior of Prenesting Greater White-fronted Geese on the Yukon-Kuskokwim Delta, Alaska
Author | : David Budeau |
Publisher | : |
Total Pages | : 168 |
Release | : 1989 |
Genre | : Bird populations |
ISBN | : |
Habitat Suitability Index Models
Author | : Richard M. Kaminski |
Publisher | : |
Total Pages | : 28 |
Release | : 1986 |
Genre | : Habitat partitioning (Biology) |
ISBN | : |
The North American Geese
Author | : Paul Johnsgard |
Publisher | : Lulu.com |
Total Pages | : 161 |
Release | : 2016-08-23 |
Genre | : Nature |
ISBN | : 1609620941 |
The eight currently recognized species of North American geese are part of a familiar group of birds collectively called waterfowl, all of which are smaller than swans and generally larger than ducks. They include the most popular of our aquatic gamebirds, with several million shot each year by sport hunters. Our two most abundant waterfowl, the Canada goose and snow goose, have populations collectively totaling about 15 million individuals. Like swans, the lifelong pairbonding of geese, their familial care, and prolonged social attachment to their offspring are legendary. Their seasonal migratory flights sometimes span thousands of miles, and the sight of their long, wavering flight formations are as much the symbols of seasonal change as are the spring songs of cardinals or the appearance of autumnal leaf colors. This book describes each species' geographic range and subspecies, its identification traits, weights and measurements, and criteria for its age and sex determination. Ecological and behavioral information includes each species' breeding and wintering habitats, its foods and foraging behavior, its local and long distance movements, and its relationships with other species. Reproductive information includes each species' age of maturity, pair-bond pattern, pair-forming behaviors, usual clutch sizes and incubation periods, brooding behavior, and postbreeding behavior. Mortality sources and rates of egg, young, and adult losses are also summarized, and each species' past and current North American populations are estimated. In addition to a text of nearly 60,000 words, the book includes 8 maps, 21 line drawings, and 28 photographs by the author, as well as more than 700 literature citations.
The Social Life of Greylag Geese
Author | : Isabella B. R. Scheiber |
Publisher | : Cambridge University Press |
Total Pages | : 257 |
Release | : 2013-08-29 |
Genre | : Science |
ISBN | : 1107292182 |
The flock of greylag geese established by Konrad Lorenz in Austria in 1973 has become an influential model animal system and one of the few worldwide with complete life-history data spanning several decades. Based on the unique records of nearly 1000 free-living greylag geese, this is a synthesis of more than twenty years of behavioural research. It provides a comprehensive overview of a complex bird society, placing it in an evolutionary framework and drawing on a range of approaches, including behavioural (personality, aggression, pair bonding and clan formation), physiological, cognitive and genetic. With contributions from leading researchers, the chapters provide valuable insight into historic and recent research on the social behaviour of geese. All aspects of goose and bird sociality are discussed in the context of parallels with mammalian social organisation, making this a fascinating resource for anyone interested in integrative approaches to vertebrate social systems.
Ecological Effects of Water-level Fluctuations in Lakes
Author | : Karl M. Wantzen |
Publisher | : Springer Science & Business Media |
Total Pages | : 184 |
Release | : 2009-05-06 |
Genre | : Technology & Engineering |
ISBN | : 1402091923 |
Most aquatic ecosystems have variable water levels. These water-level fluctuations (WLF) have multiple effects on the organisms above and below the waterline. Natural WLF patterns in lakes guarantee both productivity and biodiversity, while untimely floods and droughts may have negative effects. Human impacts on WLF have led to a stabilization of the water levels of many lakes by hydraulic regulation, untimely drawdown due to water use, or floods due to water release from hydropower plants in the catchments. This book provides a first review in this field. It presents selected papers on the ecological effects of WLF in lakes, resulting from a workshop at the University of Konstanz in winter 2005. Issues addressed here include the extent of WLF, and analyses of their effects on different groups of biota from microorganisms to vertebrates. Applied issues include recommendations for the hydrological management of regulated lakes to reduce negative impacts, and a conceptual framework is delivered by an extension of the floodpulse concept for lakes. Current impacts on water use, including increasing demands on drinking and irrigation water, hydropower etc., and climate change effects on WLF make this book an essential resource for aquatic ecologists, engineers, and decision-makers dealing with the management of lake ecosystems and their catchments.
Waterfowl in Winter
Author | : Milton Webster Weller |
Publisher | : U of Minnesota Press |
Total Pages | : 647 |
Release | : 1988 |
Genre | : |
ISBN | : 1452908575 |