Carrion and dung : the decomposition of animal wastes PDF Download
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Author: Roderick J. Putman
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 59
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Book Description
Author: Roderick J. Putman
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 59
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Book Description
Author: Rory Putman
Publisher: Hodder Education
ISBN:
Category : Animal carcasses
Languages : en
Pages : 72
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Book Description
Inleidend boekje over de biologische en microbiologische processen bij de afbraak van dierlijke mest
Author: M. Eric Benbow
Publisher: CRC Press
ISBN: 1466575476
Category : Science
Languages : en
Pages : 596
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Book Description
Shortlisted for the 2018 TWS Wildlife Publication Awards in the edited book categoryDecomposition and recycling of vertebrate remains have been understudied, hampered largely due to these processes being aesthetically challenging (e.g., smell and sight). Technological innovations have provided the means to explore new and historically understo
Author: H. Lieth
Publisher: Elsevier
ISBN: 0444596496
Category : Science
Languages : en
Pages : 733
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Book Description
After publication of the first volume of the Tropical Rain Forest, the International Journal of Mycology and Lichenology commented ``This is a welcome addition to the literature on the ecology of tropical rain forests. The book provides a wealth of data and stimulating discussions and is of great interest to ecologists interested in tropical areas.'' Whereas the first volume dealt with system-ecological aspects such as community organization and processes, the present volume concentrates on biogeographical aspects such as species composition, diversity, and geographical variation.Recent ecological research in the tropical rain forest has greatly extended our understanding of biogeographical patterns of variation in the various groups of organisms, and has revealed many of the ecological and evolutionary forces that led to the present patterns of variation. Many important systems of co-evolution between the tropical rain forest ecosystems have also come to light, and the loss of species and related damage is better understood in quantitative terms.This volume presents a comprehensive review of these and other features of the rain forest ecosystem structure, and the ecological processes operating that system. General chapters on abiotic and biotic factors are followed by specific chapters on all major groups of organisms. Prospects for the future are discussed and research needs clearly stated. Also the human exploitation of the system, its effects and its limits are discussed. The book is extensively illustrated by photographs, graphs, and tables, and comprehensive bibliographies follow each chapter. Author, systematic and subject indices complete the book.It is a must for all ecologists, agriculturists, foresters, agronomists, hydrologists, soil scientists, entomologists, human ecologists, nature conservationists, and planners dealing with tropical areas. Biologists and environmentalists will also find the volume of great interest.
Author: Ilkka Hanski
Publisher: Princeton University Press
ISBN: 1400862094
Category : Science
Languages : en
Pages : 514
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Book Description
In many ecosystems dung beetles play a crucial role--both ecologically and economically--in the decomposition of large herbivore dung. Their activities provide scientists with an excellent opportunity to explore biological community dynamics. This collection of essays offers a concise account of the population and community ecology of dung beetles worldwide, with an emphasis on comparisons between arctic, temperate, and tropical species assemblages. Useful insights arise from relating the vast differences in species' life histories to their population and community-level consequences. The authors also discuss changes in dung beetle faunas due to human-caused habitat alteration and examine the possible effects of introducing dung beetles to cattle-breeding areas that lack efficient native species. "With the expansion of cattle breeding areas, the ecology of dung beetles is a subject of great economic concern as well as one of intense theoretical interest. This excellent book represents an up-to-date ecological study covering important aspects of the dung beetle never before presented."--Gonzalo Halffter, Instituto de Ecologia, Mexico City Originally published in 1991. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Author: Rachel Stone
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 63
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Book Description
Necrophilous insects occupy a biologically interesting ecological niche because carrion is a highly desirable but ephemeral food source. Insects that feed on carrion are widely studied in forensic and entomological disciplines, but many taxa attracted to decomposition are often overlooked. Dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae and Aphodiinae) are frequently found at carrion, but very little is known about their attraction to this resource. Are dung beetles attracted to the carrion itself or are they attracted indirectly because the gastrointestinal contents of the animals are exposed? This research attempts to disentangle the association between dung beetles and carrion by examining the distribution of dung beetles on the head- and tail-end of rat carrion, delimiting a resource more attractive to necrophagous insects (head-end) and a resource more attractive to coprophagous insects (tail-end). Comparisons were made between dung beetle distributions on rat carrion with carrion beetle (Coleoptera: Silphidae) distributions, a model of distribution patterns for a taxon known to target carrion. A total of 25,081 dung beetle individuals from 21 species and 3,333 individual carrion beetles from 9 species were collected in our year-long study. Results indicate that dung beetles show higher attraction to the head-end of rat carrion than the tail-end. This distribution pattern is also found in carrion beetles, suggesting that similar resources are being targeted. When dung beetles are grouped by behavioral guilds, rollers and tunnellers also share this pattern of greater abundance at the head-end rather than the tail-end, but dwellers show no discernable difference between the head- and tail-end. This research indicates that dung beetle interactions with carrion that are more complex than previously understood. Our results suggest that scarabaeine dung beetles target carrion preferentially, challenging the long-held belief that, within temperate regions, dung beetle necrophagy is rare and unimportant to the decomposition of carrion.
Author: Samantha Paul
Publisher: Oxbow Books
ISBN: 1782979670
Category : Social Science
Languages : en
Pages : 174
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Book Description
The site at Mill Lane, Sawston, represents millennia of human activity within a dynamic and changing landscape setting. River valleys have been a focus for human activity since the early Holocene and, in addition to providing abundant archaeological evidence for this activity, the proximity to water also highlights the potential for the preservation of both archaeological remains and palaeoenvironmental source material. However, human activity within river valleys also commonly bridges areas of both wetland and dryland; ecological zones which are often approached using quite different archaeological methods and which present considerable differences in levels of archaeological visibility and preservation. The site at Mill Lane offered an uncommon opportunity to explore the interface between these two types of environment. Here we present the results of the study of a wetland/dryland interface on the edge of palaeochannels of the River Cam in Cambridgeshire. Through the integrated archaeological and palaeoenvironmental analysis of a site on the western edge of Sawston, a detailed picture of life on the edge of the floodplain from the late glacial to the post-medieval periods has been developed. At the heart of this is the relationship between people and their changing environment, which reveals a shifting pattern of ritual, occupation and more transitory activity as the riparian landscape in a wooded setting became a wetland within a more openly grazed environment. The presence of potential built structures dating to the early Neolithic, the early Bronze Age and the early Anglo-Saxon periods provides some sense of continuity, although the nature of these structures and the environmental context within which they were constructed was very different. The site at Mill Lane, Sawston, represents millennia of human activity within a dynamic and changing landscape setting. River valleys have been a focus for human activity since the early Holocene and, in addition to providing abundant archaeological evidence for this activity, the proximity to water also highlights the potential for the preservation of both archaeological remains and palaeoenvironmental source material. However, human activity within river valleys also commonly bridges areas of both wetland and dryland; ecological zones which are often approached using quite different archaeological methods and which present considerable differences in levels of archaeological visibility and preservation. The site at Mill Lane offered an uncommon opportunity to explore the interface between these two types of environment. Here we present the results of the study of a wetland/dryland interface on the edge of palaeochannels of the River Cam in Cambridgeshire. Through the integrated archaeological and palaeoenvironmental analysis of a site on the western edge of Sawston, a detailed picture of life on the edge of the floodplain from the late glacial to the post-medieval periods has been developed. At the heart of this is the relationship between people and their changing environment, which reveals a shifting pattern of ritual, occupation and more transitory activity as the riparian landscape in a wooded setting became a wetland within a more openly grazed environment. The presence of potential built structures dating to the early Neolithic, the early Bronze Age and the early Anglo-Saxon periods provides some sense of continuity, although the nature of these structures and the environmental context within which they were constructed was very different. The site at Mill Lane, Sawston, represents millennia of human activity within a dynamic and changing landscape setting. River valleys have been a focus for human activity since the early Holocene and, in addition to providing abundant archaeological evidence for this activity, the proximity to water also highlights the potential for the preservation of both archaeological remains and palaeoenvironmental source material. However, human activity within river valleys also commonly bridges areas of both wetland and dryland; ecological zones which are often approached using quite different archaeological methods and which present considerable differences in levels of archaeological visibility and preservation. The site at Mill Lane offered an uncommon opportunity to explore the interface between these two types of environment. Here we present the results of the study of a wetland/dryland interface on the edge of palaeochannels of the River Cam in Cambridgeshire. Through the integrated archaeological and palaeoenvironmental analysis of a site on the western edge of Sawston, a detailed picture of life on the edge of the floodplain from the late glacial to the post-medieval periods has been developed. At the heart of this is the relationship between people and their changing environment, which reveals a shifting pattern of ritual, occupation and more transitory activity as the riparian landscape in a wooded setting became a wetland within a more openly grazed environment. The presence of potential built structures dating to the early Neolithic, the early Bronze Age and the early Anglo-Saxon periods provides some sense of continuity, although the nature of these structures and the environmental context within which they were constructed was very different.
Author: Bernd Heinrich
Publisher: Houghton Mifflin Harcourt
ISBN: 0544002261
Category : Nature
Languages : en
Pages : 255
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Book Description
From beetles to bald eagles, ravens to wolves, Heinrich reveals the fascinating and mostly hidden post-death world that occurs around us constantly, while examining the ancient and important role we humans, too, play as scavengers, connecting death to life. --
Author: Steven D. Johnson
Publisher: Oxford University Press
ISBN: 0191047236
Category : Science
Languages : en
Pages : 197
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Book Description
Mimicry is a classic example of adaptation through natural selection. The traditional focus of mimicry research has been on defence in animals, but there is now also a highly-developed and rapidly-growing body of research on floral mimicry in plants. This has coincided with a revolution in genomic tools, making it possible to explore which genetic and developmental processes underlie the sometimes astonishing changes that give rise to floral mimicry. Being literally rooted to one spot, plants have to cajole animals into acting as couriers for their pollen. Floral mimicry encompasses a set of evolutionary strategies whereby plants imitate the food sources, oviposition sites, or mating partners of animals in order to exploit them as pollinators. This first definitive book on floral mimicry discusses the functions of visual, olfactory, and tactile signals, integrating them into a broader theory of organismal mimicry that will help guide future research in the field. It addresses the fundamental question of whether the evolutionary and ecological principles that were developed for protective mimicry in animals can also be applied to floral mimicry in plants. The book also deals with the functions of floral rewardlessness, a condition which often serves as a precursor to the evolution of mimicry in plant lineages. The authors pay particular attention to the increasing body of research on chemical cues: their molecular basis, their role in cognitive misclassification of flowers by pollinators, and their implications for plant speciation. Comprehensive in scope and conceptual in focus, Floral Mimicry is primarily aimed at senior undergraduates, graduate students, and researchers in plant science and evolutionary biology.
Author: Ross H. Arnett
Publisher: Simon and Schuster
ISBN: 0671250140
Category : Insects
Languages : en
Pages : 516
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Book Description
An ... field guide to 350 species, with more than 1000 ... full-color illustrations.
