This report addresses changes in population size in five species of diving ducks breeding and wintering in the Baltic Sea. Declines in breeding Greater Scaup, Eider and Velvet Scoters on the Baltic coast are verified. Long-tailed Ducks and Eiders have declined in winter. Breeding Eiders have declined in Norway. Monitoring programs in all Nordic countries are partly inadequate for detecting changes in numbers of birds both in winter and during breeding, but large-scale trends appear reliable. The reasons for the declines observed are largely unknown. For breeding Eiders in the northern part of the Baltic Sea a change in predation regimes on the breeding islands may be important. If the negative trends are to be stopped, a deeper understanding of the drivers involved and better knowledge about the ecological status of the Baltic Sea food webs utilized by the diving ducks are needed.

This is the first comprehensive science-based textbook on the biology and ecology of the Baltic Sea, one of the world’s largest brackish water bodies. The aim of this book is to provide students and other readers with knowledge about the conditions for life in brackish water, the functioning of the Baltic Sea ecosystem and its environmental problems and management. It highlights biological variation along the unique environmental gradients of the brackish Baltic Sea Area (the Baltic Sea, Belt Sea and Kattegat), especially those in salinity and climate. pt;font-family:"Arial","sans-serif"; color:#262626">The first part of the book presents the challenges for life processes and ecosystem dynamics that result from the Baltic Sea’s highly variable recent geological history and geographical isolation. The second part explains interactions between organisms and their environment, including biogeochemical cycles, patterns of biodiversity, genetic diversity and evolution, biological invasions and physiological adaptations. In the third part, the subsystems of the Baltic Sea ecosystem – the pelagic zone, the sea ice, the deep soft sea beds, the phytobenthic zone, the sandy coasts, and estuaries and coastal lagoons – are treated in detail with respect to the structure and function of communities and habitats and consequences of natural and anthropogenic constraints, such as climate change, discharges of nutrients and hazardous substances. Finally, the fourth part of the book discusses monitoring and ecosystem-based management to deal with contemporary and emerging threats to the ecosystem’s health.

Anthropogenic climate change is the defining environmental challenge of this century, posing an existential threat not only to humans but also to the vast array of plants and animals that inhabit our planet. Among these, insects reign as the largest and most diverse group of organisms, playing critical roles in nutrient cycling, pollination, seed dispersal, and population control of other species. Additionally, they serve as a vital food source for various taxa and act as vectors for numerous human diseases. This comprehensive but accessible text delves into the intricate world of these remarkable creatures, with a focus extending beyond economically or medically significant species to encompass non-model organisms. In so doing, it uncovers valuable insights into the implications posed by climate change on global insect populations. The book reviews the conceptual approaches and most significant advances in our current understanding of insect physiology, genetics, ecology, evolution, and conservation within the ongoing and rapidly developing context of global anthropogenic climate change. In addition to presenting historical information about climate change effects on insects, it synthesizes the available knowledge concerning the impact of climate change on insect populations, communities, and ecosystem processes. Furthermore, it identifies the most relevant topics and promising methodological approaches for further research in this crucial field. Effects of Climate Change on Insects has been written to engage a diverse audience, catering to the curiosity of both students and researchers seeking knowledge on the critical subject of insect responses to climate change. As the field continues to grow in importance, it will be an indispensable resource for anyone seeking to comprehend the intricate interplay between these fascinating creatures and our ever-changing world.

Sturkie's Avian Physiology, Seventh Edition is the classic comprehensive single volume on the physiology of domestic as well as wild birds. This latest edition is thoroughly revised and updated and features several new chapters with entirely new content on such topics as vision, sensory taste, pain reception, evolution, and domestication. Chapters throughout have been greatly expanded due to the many recent advances in the field. This book is written by international experts in different aspects of avian physiology. For easy reading and searches, this book is structured under a series of themes, beginning with genomic studies, sensory biology and nervous systems, and major organs. The chapters then move on to investigate metabolism, endocrine physiology, reproduction, and finally cross-cutting themes such as stress and rhythms. New chapters on feathers and skin are featured as well. Sturkie's Avian Physiology, Seventh Edition is an important resource for ornithologists, poultry scientists, and other researchers in avian studies. It is also useful for students in avian or poultry physiology, as well as avian veterinarians. - Stands out as the only single volume devoted to bird physiology - Features updates, revisions, or additions to each chapter - Written and edited by international leaders in avian studies

This second, completely revised edition of “Paleogene fossil birds” gives a comprehensive, updated overview of the avian fossil record from a geological period that lasted from the end-Cretaceous mass extinction event (66 million years ago) to the end of the Oligocene epoch (23 mya). Paleogene avifaunas are highly diversified and not only feature unusual archaic groups without close living relatives but also offer unique insights into the evolution and biogeographic history of extant birds. The main body of the book constitutes an in-depth survey of the known diversity of Paleogene avifaunas. The reader is introduced into basic skeletal features of extinct avian taxa, with these fossil forms being placed into a phylogenetic context in the light of current hypotheses on the interrelationships of extant birds. The geographical and temporal occurrences of the various fossil groups are outlined and their evolutionary significance is discussed. Concluding sections inform more general aspects of Paleogene avifaunas, such as possible causes of major faunal changes. In addition to being a reference work for the early evolution of modern birds from a paleornithological perspective, the present work also enables researchers in other fields of vertebrate paleontology to gain an improved understanding of Paleogene ecosystems. Numerous color photos of representative specimens furthermore make the new edition attractive to a wider audience interested in the avian fossil record.

Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

An illustrated narrative that interweaves the shifting seasons of the Northwest Coast with the experiences of a conservation biologist surveying thousands of kilometres of open ocean in order to uncover the complex relationships between humans, marine birds and the realities of contemporary biodiversity. At Sea with the Marine Birds of the Raincoast combines the natural and human histories of Pacific Northwest marine birds with Caroline Fox's personal story of her life as a conservation scientist. Accompanied by vivid images, drawings and both archival and modern photography, the narrative follows the author as she sails the coast, documenting marine bird diversity and seasonal shifts in community assemblages. This unique story captures the natural splendour and rich variety of marine birds feeding, breeding and undertaking spectacular, often trans-equatorial migrations along the Northwest Coast. Introducing some of the most fascinating yet poorly understood species, including albatrosses, puffins and cranes, this compelling read calls attention to the urgent conservation challenges faced by marine birds and their ecosystems, as well as their historically complex relationship with human society.

The fascinating biology and evolutionary history of these odd, flightless birds. Flightless, iconic birds made even more famous by the 2005 film March of the Penguins, penguins conjure up images of caring parents, devoted couples, and tough survivors. In Penguins: The Animal Answer Guide, Gerald L. Kooyman and Wayne Lynch inform readers about all seventeen species, including the emperor penguin featured in the film. Do you know why penguins live only in the Southern Hemisphere? Or that they can be ferocious predators? Why are penguins black and white? Do they play? This book answers these questions and many more, illuminating the fascinating biology and evolutionary history of these odd birds. Kooyman has studied penguins for decades, and Lynch’s photographs of penguins in the wild are the best ever captured. The result of their combined effort is a book that answers every penguin question you've ever had. Whether you hope to travel to the Southern Hemisphere or simply want to learn more about wildlife, Penguins: The Animal Answer Guide deserves a spot on your bookshelf.