Download or read book Special Scientific Report wildlife written by and published by . This book was released on 1949 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Birds Imported Into the United States in 1971 written by Roger B. Clapp and published by . This book was released on 1973 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Birds imported into the United States 1971 are tabulated by species. Total numbers for the period 1968-1971 are given for the more commonly imported taxa. The number of birds imported in 1971 increased only slightly over that for 1970. In 1971, 750 species were imported, of which 194 had not been imported in the previous 3 years; since 1968, approximately 1,445 species have been imported. Parrots accounted for nearly 25% of all birds imported in 1971, compared to only 13.5% in 1970. Birds were imported from 63 foreign countries. The proportion of imported birds presumed to have been raised in captivity decreased in 1971.
Download or read book Novitates Zoologicae written by and published by . This book was released on 1911 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grassfinches in Australia written by Mark Shephard OAM and published by CSIRO PUBLISHING. This book was released on 2012-08-09 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is not surprising that Australian grassfinches are highly popular with ornithologists and aviculturists, for included among the species are one of the most beautiful of all birds – the Gouldian Finch Erythrura gouldiae – and one of the most familiar cagebirds – the Zebra Finch Taeniopygia guttata. Despite a scarcity in published works on finches, interest in the species is growing, leading to a dramatic advancement in our knowledge of many species. For example, we have gained new information from field observations carried out on little-known species, including the Blue-faced Parrot-Finch Erythrura trichroa and the Red-eared Firetail Stagonopleura oculata. Significant advances in taxonomic research, largely as a consequence of the development and refinement of biochemical analyses, often involving DNA-DNA hybridisation, have given us a new insight into relationships among species, with some unexpected alliances being determined. Additionally, dramatic changes have taken place in avicultural practices, and in virtually all countries aviculture has taken on a new professional approach, with the most notable results being increased productivity and success with a wider variety of species. After a lapse of almost half a century since publication of Klaus Immelmann’s eminent work on finches, based on extensive field studies, the time has come for a new examination of Australian grassfinches. In Grassfinches in Australia, Joseph Forshaw, Mark Shephard and Anthony Pridham have summarised our present knowledge of each species, and have given readers a visual appreciation of the birds in their natural habitats and in aviculture. The resulting combination of superb artwork and scientifically accurate text ensures that this volume will become the standard reference work on Australian grassfinches. In addition to enabling aviculturists to know more about these finches in the wild as a guide to their own husbandry techniques, detailed information on current management practices for all species in captivity is provided. The book also includes colour plates depicting some of the more common mutations held in Australian and overseas collections.
Download or read book Nests and Eggs of Birds Found Breeding in Australia and Tasmania written by Alfred John North and published by . This book was released on 1909 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterfowl Status Report 1972 written by and published by . This book was released on 1973 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature of Diversity written by Daniel R. Brooks and published by University of Chicago Press. This book was released on 2012-04-26 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: All living things on earth—from individual species to entire ecosystems—have evolved through time, and evolution is the acknowledged framework of modern biology. Yet many areas of biology have moved from a focus on evolution to much narrower perspectives. Daniel R. Brooks and Deborah A. McLennan argue that it is impossible to comprehend the nature of life on earth unless evolution—the history of organisms—is restored to a central position in research. They demonstrate how the phylogenetic approach can be integrated with ecological and behavioral studies to produce a richer and more complete picture of evolution. Clearly setting out the conceptual, methodological, and empirical foundations of their research program, Brooks and McLennan show how scientists can use it to unravel the evolutionary history of virtually any characteristic of any living thing, from behaviors to ecosystems. They illustrate and test their approach with examples drawn from a wide variety of species and habitats. The Nature of Diversity provides a powerful new tool for understanding, documenting, and preserving the world's biodiversity. It is an essential book for biologists working in evolution, ecology, behavior, conservation, and systematics. The argument in The Nature of Diversity greatly expands upon and refines the arguments made in the authors' previous book Phylogeny, Ecology, and Behavior.
Download or read book A List of the Birds of Australia written by Gregory Macalister Mathews and published by . This book was released on 1913 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Directory of Australian Birds Passerines written by R Schodde and published by CSIRO PUBLISHING. This book was released on 1999-10-01 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent classifications of Australian birds have been limited to lists of "species" which are inadequate as biodiversity indicators. The Directory of Australian Birds: Passerines fills a huge gap in ornithological knowledge by separating out and listing not only 340 species of song-birds but also the 720 distinct regional forms. Covering about half the national bird fauna, the Directory provides science and the community with baseline information about what bird it is and where it lives in an Australia-wide context. Identity is taken down to the level of distinct regional population. No other compendium on Australian birds does this.
Download or read book Mourning Dove Recoveries from Mexico written by Lytle Houston Blankenship and published by . This book was released on 1970 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of 37,000 reports of mourning dove band recoveries in the files of the Migratory Bird Populations Station on October 30, 1967, 1,120 came from Mexico, and half of those were from Jalisco and Michoacan, both in west-central Mexico; Jalisco alone accounted for nearly a third. Few recoveries were reported from the area between the U.S. border and mid-Mexico. Generally, lower proportions of total recoveries were reported from Mexico under the current pre-hunting season banding program for flying birds than were reported from the nestling dove banding program of the 1950's. Bandings in the northern U.S. States produced proportionally more recoveries than bandings in the southern U.S. States. Doves banded over diverse areas of the United States were harvested in common migration with wintering areas in Mexico. Possible explanations of the heterogeneous distribution of recoveries throughout Mexico are discussed. Of the banded birds for which "how obtained" was known, 83.5 percent were reported as shot (or killed) and only 3.2 percent reported as captured or trapped. Among 658 persons who gave their name and residence when they reported bands, 95.7 percent had typically Spanish surnames and were residents of Mexico. Depending upon actual banding reporting rates and the representativeness of the banding data analyzed, the Mexican dove harvest may equal or exceed harvests in leading U.S. States. Factors influencing band reporting rates must be resolved before Mexico's importance as a harvest area can be accurately determined.
Download or read book Nests and Eggs of Australian Birds written by Archibald James Campbell and published by . This book was released on 1901 with total page 1454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Abstracts written by and published by . This book was released on 1976 with total page 1344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics and the Origin of Species written by National Academy of Sciences and published by National Academies Press. This book was released on 2005-09-28 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: In December 2004, the National Academy of Sciences sponsored a colloquium on "Systematics and the Origin of Species" to celebrate Ernst Mayr's 100th anniversary and to explore current knowledge concerning the origin of species. In 1942, Ernst Mayr, one of the twentieth century's greatest scientists, published Systematics and the Origin of Species, a seminal book of the modern theory of evolution, where he advanced the significance of population variation in the understanding of evolutionary process and the origin of new species. Mayr formulated the transition from Linnaeus's static species concept to the dynamic species concept of the modern theory of evolution and emphasized the species as a community of populations, the role of reproductive isolation, and the ecological interactions between species. In addition to a preceding essay by Edward O. Wilson, this book includes the 16 papers presented by distinguished evolutionists at the colloquium. The papers are organized into sections covering the origins of species barriers, the processes of species divergence, the nature of species, the meaning of "species," and genomic approaches for understanding diversity and speciation.
Download or read book Journal written by New South Wales. Parliament. Legislative Council and published by . This book was released on 1901 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Votes Proceedings written by New South Wales. Parliament. Legislative Council and published by . This book was released on 1901 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
