Download or read book Effects of Territory Boundary Disruption on Behavior Patterns of the Red winged Blackbird written by John Richard Miller and published by . This book was released on 1972 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Territorial and Mating Behavior of the Red winged Blackbird written by Robert W. Nero and published by . This book was released on 1955 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bird Species written by Dieter Thomas Tietze and published by Springer. This book was released on 2018-11-19 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.
Download or read book Current Ornithology Volume 17 written by Charles F. Thompson and published by Springer Science & Business Media. This book was released on 2010-09-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Download or read book Frightful s Mountain written by Jean Craighead George and published by Penguin. This book was released on 2001-05-22 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frightful, the pelegrine falcon, could not see. A falconer's hood covered her head and eyes. She remained quiet and clam, like all daytime birds in the dark. She would hear, however. She listened t the wind whistling through the pine needles. The wind-music conjured up images of a strange woods and unknown flowers. The sound was foreign. It was not the soft song of wind humming through the hemlock needles of home. Frightful was a long way from her familiar forest. Suddenly an all-invading passion filled her. She must go. She must find one mountain among thousands, one hemlock tree among millions,. And the one boy who called himself Sam Gribley. The one mountain was her territory, the one tree was Sam's house, the perch beside it, her place. And Sam Gribley was life.So begins the third book in the wilderness series that has lifted imaginations around the worlds. Readers last head from Sam Gribley a decade ago , when he kept the hardest resolution of his life and let his falcon partner go free. Now at last we pick up the sotry?but this time, the narrative continues through Frightful's keen-sighted eyes.Raised by Sam, Frightful is an imprinted bird. She has no idea how to migrate, mate, or be a mother. She can barely even feed herself, for although she is a skilled hunter, it was always Sam who signaled permission to partake of the kill. Sam, so patient and kind, will support her from afar, and so will bird activists Jon and Susan wood and conservationist Leon Longbridge. But despite a letter-writing campaign by local schoolchildren, other would despoil her Catskill home?designing fatal electrical wires and disturbing good nesting areas with jackhammers and paint trucks.With evolution and a proud natural intelligence on her side, Frightful may yet beat the odds of famine, winter, and human encroachment. But her terrible longing for that one mountain among thousands, her first home?a longing so noble and generous yet so dangerous?will govern her to either heartbreaking failure or hart-aching triumph, a triumph so right and so natural that readers will want to take to the skies in celebration.Jean Craighead George published My Side of the mountain in 1959, a Newbery Honor Book and coming-of-age story that has enthralled and entertained generations of would-be Sams. This third book in the series shares?in exquisite, elegantly flowing prose?Frightful's own passage into adulthood, taking readers on a journey into the mind and spirit of one of the wild's most magnificent creations and proving once again why the author is considered the most gifted nature writer of her time.
Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 2000 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Towns Ecology and the Land written by Richard T. T. Forman and published by Cambridge University Press. This book was released on 2019-02-07 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.
Download or read book Antarctic Ecosystems written by K.R. Kerry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antarctic Ecosystems comprises 55 papers presented at the Fifth Symposium on Antarctic Biology held under the auspices of the Scientific Committee on Antarctic Research (SCAR) in Hobart, Australia, 29 August - 3 September, 1988. Both short- and long-term changes in ecosystems and community structures caused by natural and human factors were discussed to help understand the ecological processes taking place in a changing environment. The variability of ecological factors must be known for the development of realistic monitoring strategies and sound conservation practices.
Download or read book The Zoological Record written by and published by . This book was released on 1969 with total page 1242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Dispersal written by N.C. Stenseth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Download or read book Some Adaptations of Marsh Nesting Blackbirds MPB 14 Volume 14 written by Gordon H. Orians and published by Princeton University Press. This book was released on 2020-03-31 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The variety of social systems among the New World blackbirds (Family Icteridae) and the structural simplicity of their foraging environment provide excellent opportunities for testing theorics about the adaptive significance of their behavior. Here Gordon Orians presents the results of his many years of research on how blackbirds utilize their marsh environments during the breeding season. These results stem from information he gathered on three species during ten breeding seasons in the Pacific Northwest, on Red-winged blackbirds during two breeding seasons in Costa Rica, and on three species during one breeding season in Argentina. The author uses models derived from Darwin's theory of natural selection to predict the behavior and morphology of individuals as well as the statistical properties of their populations. First he tests models that predict habitat selection, foraging behavior, territoriality, and mate selection. Then he considers some population patterns, especially range of use of environmental resources and overlap among species, that may result from those individual attributes. Professor Orianns concludes with an overview of the structure of bird communities in marshes of the world and the relation of these patterns to overall source availability in these simple but productive habitats.
Download or read book American Scientist written by and published by . This book was released on 1942 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of Transmission Lines on Birds in Flight written by Michael L. Avery and published by . This book was released on 1978 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Conservation of Forest Birds written by Grzegorz Mikusiński and published by Cambridge University Press. This book was released on 2018-03-29 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative review of the ecology of forest birds and their conservation issues throughout the Northern Hemisphere.
Download or read book The Neurobiology of Parental Behavior written by Michael Numan and published by Springer Science & Business Media. This book was released on 2006-05-17 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to filling a need within the field of parental behavior, this book contributes importantly to the growing area of emotional and motivational neuroscience. A major part of neuroscience research at the whole organism level has been focused on cognitive neuroscience, with an emphasis on the neurobiology of learning and memory, but there has been a recent upsurge in research which is attempting to define the neural basis of basic motivational and emotional systems which regulate such behaviors as food intake, aggression, reproduction, reward-seeking behaviors, and anxiety-related behaviors. In this book the emphasis is on the research findings obtained from rodents, sheep and primates. The authors' goal, of course, was to provide a foundation that may help us understand the neurobiology of human parental behavior. Indeed, the last chapter attempts to integrate the non-human research data with some human data in order to make some inroads toward an understanding of postpartum depression, child abuse, and child neglect. Clearly, motivational and emotional neuroscience has close ties to psychiatry, and this connection will be very evident in the final chapter. By understanding the neurobiology of parental behavior we are also delving into neurobiological factors which may have an impact on core human characteristics involved in sociality, social attachment, nurturing behavior, and love. In this very violent world, it is hard to conceive of a group of characteristics that are more worthy of study.
Download or read book Field Manual of Wildlife Diseases written by and published by Geological Survey (USGS). This book was released on 1999 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hormones and Animal Social Behavior written by Elizabeth Adkins-Regan and published by Princeton University Press. This book was released on 2005-08-07 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a graduate level guide to the intersection between animal social behaviour and behavioural endocrinology. The fascinating connections between steroids, peptides and social behaviour are explored through an integrative and comparative approach combining various methods.
