Feeding Ecology of and Lead Exposure in a Top Predator PDF Download

Author: Mirjam Nadjafzadeh
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832529896
Category : Science
Languages : en
Pages : 142

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Book Description
Although the feeding ecology of raptors has attracted the attention of many scientists, aspects such as diet selection and foraging strategy are still poorly understood. This is particularly true for large species such as the white-tailed eagle. Representative assessments of the contribution of food sources containing toxins such as lead to raptor diets are scarce but are essential for optimising conservation efforts. This dissertation investigated the feeding ecology of white-tailed eagles to shed light on the interaction of such top predators with their environment and to improve the conservation management of this lead-exposed species. A use of complementary methods identified the most effective approach for dietary investigations on free-ranging raptors. The findings revealed that the foraging strategy of white-tailed eagles is influenced by both individual and environmental factors and corresponds to an efficient food intake in terms of optimal foraging theory. The main sources of lead fragments that induce fatal lead poisoning are shot mammalian carcasses which constitute important alternative diet components for white-tailed eagles during the hunting season. One approach to solve the lead poisoning problem can be the use of lead-free bullets by hunters that fragment into sufficiently large particles which would be avoided by scavenging eagles and birds with similar feeding behaviour.

Author: Michael O'Neal Campbell
Publisher: CRC Press
ISBN: 1315278081
Category : Nature
Languages : en
Pages : 648

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Book Description
This book examines the current literature and knowledge on the evolution and ecology of all the birds named as eagles, with particular emphasis on the larger species. It also examines the past and current relations between eagles and people, including habitat change and conservation issues. Eagle ecologies and conservation are currently seriously impacted by human activities such as industrialization, urbanization, pollution, deforestation and hunting. Some eagle species have consequently experienced extreme population changes. There are, however, some positive developments. Eagles have a strong, historic bond with human civilization, due to their status as the world’s most charismatic birds. Conservation policies have also been successful in repopulating some ecosystems with breeding eagles. Therefore, despite the complexity of this relationship, there may yet be hope for this unique species group, frequently rated as the kings of birds, and symbolic of human power, ambition, royalty, nationality, and even concepts of God. It is hoped that this book will contribute to the further understanding of these unique and fantastic birds.

Author: Rachel Ann Hauser-Davis
Publisher: CRC Press
ISBN: 100088709X
Category : Science
Languages : en
Pages : 251

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Book Description
This book presents an integrated and holistic discussion on cadmium, lead and mercury toxicity in aquatic environments, expanding general concepts on chemical speciation effects and exploring specific environmental toxicological issues, exposure routes, and bioanalytical approaches for their determination and assessments on their intracellular deleterious effects. It contains worldwide and regional aspects on cadmium, lead and mercury occurrence, fate, and toxicity, addressing key environmental exposure and health risk concerns to both humans and aquatic organisms. Our book is of interest to anyone conducting research in the broad fields of oceanography, geochemistry, ecotoxicology, and environmental and public health.

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: Dr. Rajendra S. Gaikwad
Publisher: Ashok Yakkaldevi
ISBN: 1387380729
Category : Art
Languages : en
Pages : 155

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Book Description
Every year, pollution in the environment rises, causing serious and irreparable harm to the world. There are many different kinds of pollution, including air, water, soil, noise, and light-weight pollution. The living system is harmed as a result of these. There has been a significant shift in how pollution affects public health, environmental medicine, and the environment. Environmental pollution was neither a medical or public health issue nor was it discussed in clinical settings until recent oil spills in the Yellowstone River, Alaska's tundra, and Enbridge (Wisconsin) demonstrate how pollution can affect man's health directly or indirectly. Environmental medicine has become more widely discussed since the 1950s as a result of increased awareness in public health and preventive medicine; despite the fact that occupational medicine is now the primary focus. However, environmental and occupational medicine are typically thought of as a combined field with an emphasis on industrial issues. As a result of the pollutant's low complexity, degradability (such as biodegradable organics), and lack of industrialization, pollution issues were, without a doubt, recognized in the distant past.

Author: Brian D. Fath
Publisher: Newnes
ISBN: 008091456X
Category : Science
Languages : en
Pages : 4292

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Book Description
The groundbreaking Encyclopedia of Ecology provides an authoritative and comprehensive coverage of the complete field of ecology, from general to applied. It includes over 500 detailed entries, structured to provide the user with complete coverage of the core knowledge, accessed as intuitively as possible, and heavily cross-referenced. Written by an international team of leading experts, this revolutionary encyclopedia will serve as a one-stop-shop to concise, stand-alone articles to be used as a point of entry for undergraduate students, or as a tool for active researchers looking for the latest information in the field. Entries cover a range of topics, including: Behavioral Ecology Ecological Processes Ecological Modeling Ecological Engineering Ecological Indicators Ecological Informatics Ecosystems Ecotoxicology Evolutionary Ecology General Ecology Global Ecology Human Ecology System Ecology The first reference work to cover all aspects of ecology, from basic to applied Over 500 concise, stand-alone articles are written by prominent leaders in the field Article text is supported by full-color photos, drawings, tables, and other visual material Fully indexed and cross referenced with detailed references for further study Writing level is suited to both the expert and non-expert Available electronically on ScienceDirect shortly upon publication

Author: Gary George Mittelbach
Publisher:
ISBN: 019883585X
Category : Science
Languages : en
Pages : 430

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Book Description
Community ecology has undergone a transformation in recent years, from a discipline largely focused on processes occurring within a local area to a discipline encompassing a much richer domain of study, including the linkages between communities separated in space (metacommunity dynamics), niche and neutral theory, the interplay between ecology and evolution (eco-evolutionary dynamics), and the influence of historical and regional processes in shaping patterns of biodiversity. To fully understand these new developments, however, students continue to need a strong foundation in the study of species interactions and how these interactions are assembled into food webs and other ecological networks. This new edition fulfils the book's original aims, both as a much-needed up-to-date and accessible introduction to modern community ecology, and in identifying the important questions that are yet to be answered. This research-driven textbook introduces state-of-the-art community ecology to a new generation of students, adopting reasoned and balanced perspectives on as-yet-unresolved issues. Community Ecology is suitable for advanced undergraduates, graduate students, and researchers seeking a broad, up-to-date coverage of ecological concepts at the community level.

Author: Atsushi Hagiwara
Publisher: Springer
ISBN: 9811056358
Category : Science
Languages : en
Pages : 184

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Book Description
This book highlights the latest advances in rotifer studies in various fields including aquaculture, ecology, gerontology and ecotoxicology. The genus Brachionus are an indispensable type of zooplankton, having served as an initial live food for marine larval rearing since the 1960s. Their mass culture techniques have been intensively studied, and some essential achievements have been made – regarding high density culture, employment of valuable dietary algae, automated culture systems, and effective production of resting eggs. These have in turn supported stable and efficient aquatic seedling production for numerous important marine fish species including flounder, sea bream, and bluefin tuna. Further, this group is considered to be a suitable model for studying various aspects in ecology. A series of aquaculture and basic science studies have significantly advanced our understanding of the life history evolution. The studies in these two fields are closely linked, and provide readers with comprehensive information on how rotifers are now being employed in biological investigations.

Author: David Newsome
Publisher: Channel View Publications
ISBN: 1845413849
Category : Business & Economics
Languages : en
Pages : 481

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Book Description
Natural Area Tourism provides a comprehensive description of tourism in natural areas allowing readers to understand the scope of, complexities arising from, and possibilities of undertaking successful tourism developments in natural areas. Furthermore, the second edition contains an overview of recent developments, such as mountain biking, adventure activities in protected areas and geotourism. There is new content and examples from the Asian region on managing the tourism industry and management effectiveness. The book also considers important new developments in monitoring, such as remote sensing and the use of GIS, as well as the use of electronic educational resources in delivering interpretation. Attention is given to the implications of climate change, inadequate protected area security and the ever-increasing influence of the landscape matrix. Moreover, the second edition includes a comprehensive review of the new literature that has emerged since the publication of the first edition more than a decade ago. Accordingly this book will remain an invaluable resource and account of natural area tourism for many years to come.

Author: Nitish Kumar
Publisher: Springer Nature
ISBN: 3031461460
Category : Science
Languages : en
Pages : 337

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Book Description
This edited book brings together a diverse group of researchers to address the challenges posed by global mass poisoning caused by lead contamination of soil and plants. Lead is among the elements that have been most extensively used by man over time. This has led to extensive pollution of surface soils on the local scale, mainly associated with mining and smelting of the metal and addition of organic lead compounds to petrol. Release of lead to the atmosphere from various high-temperature processes has led to surface contamination on the regional and even global scale. Lead is particularly strongly bound to humic matter in organic-rich soil and to iron oxides in mineral soil and is rather immobile in the soil unless present at very high concentrations. In addition, plants grown on lead-rich soils incorporate lead and thus the concentration of lead in crop plants may be increased. Lead enters in the food chain through consumption of plant material. A high concentration of lead has been found to be harmful to vegetation. As the lead concentration increases, it adversely affects several biological parameters and eventually renders the soil barren. The book sheds light on this global environmental issue and proposes solutions to contamination through multi-disciplinary approaches. This book contains three sections. First section describes the different sources and distribution of lead in soil and plant ecosystems. Second section explains the health risks linked to lead toxicity. Third section addresses sustainable lead toxicity mitigation strategies using the potential applications of recent biological technology. This book is a valuable resource to students, academics, researchers, and environmental professionals doing field work on contamination throughout the world.