CANADIAN JOURNAL OF ZOOLOGY

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The Natural History Of Canadian Mammals

Author : Donna Naughton
ISBN : 9781442644830
Genre : Nature
File Size : 87.46 MB
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"The selection of species to include in this book was based on two principles: 1. Those that in recent times had a viable, naturally occurring wild population in Canada, its continental islands, or in the marine waters of its continental shelf ... [and] 2. Species introduced into Canada by humans"--P. xiv.
Category: Nature

Aquatic Invertebrates Of Alberta

Author : Hugh F. Clifford
ISBN : 0888642342
Genre : Science
File Size : 88.80 MB
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A great diversity of invertebrate life lives beneath the surface of Alberta's lakes and streams. Aquatic Invertebrates of Alberta complements existing field guides to organisms in Alberta, covering all major groups of aquatic invertebrates. Colour photographs, pictorial keys, and 114 whole-specimen drawings complement the text. This book is only available through the University of Alberta Bookstore (print-on-demand).
Category: Science

Parasitic Diseases Of Wild Birds

Author : Carter T. Atkinson
ISBN : 9780813804576
Genre : Medical
File Size : 51.60 MB
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Parasitic Diseases of Wild Birds provides thorough coverage of major parasite groups affecting wild bird species. Broken into four sections covering protozoa, helminths, leeches, and arthropod parasites, this volume provides reviews of the history, disease, epizootiology, pathology, and population impacts caused by parasitic disease. Taking a unique approach that focuses on the effects of the parasites on the host, Parasitic Diseases of Wild Birds fills a unique niche in animal health literature.
Category: Medical

A Functional Biology Of Parasitism

Author : G.W. Esch
ISBN : 9789401123525
Genre : Science
File Size : 68.61 MB
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Series Editor: Peter Calow, Department of Zoology, University of Sheffield, England The main aim of this series will be to illustrate and to explain the way organisms 'make a living' in nature. At the heart of this - their functional biology - is the way organisms acquire and then make use of resources in metabolism, movement, growth, reproduction, and so on. These processes will form the fundamental framework of all the books in the series. Each book will concentrate on a particular taxon (species, family, class or even phylum) and will bring together information on the form, physiology, ecology and evolutionary biology of the group. The aim will be not only to describe how organisms work, but also to consider why they have come to work in that way. By concentration on taxa which are well known, it is hoped that the series will not only illustrate the success of selection, but also show the constraints imposed upon it by the physiological, morphological and developmental limitations of the groups. Another important feature of the series will be its organismic orientation. Each book will emphasize the importance of functional integration in the day to-day lives and the evolution of organisms. This is crucial since, though it may be true that organisms can be considered as collections of gene determined traits, they nevertheless interact with their environment as integrated wholes and it is in this context that individual traits have been subjected to natural selection and have evolved.
Category: Science

Birds Of Ontario Habitat Requirements Limiting Factors And Status

Author : Al Sandilands
ISBN : 9780774843744
Genre : Nature
File Size : 48.51 MB
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The volumes in the Birds of Ontario series summarize life history requirements of bird species that are normally part of the ecology of Ontario. The first volume dealt with waterfowl through cranes; this volume deals with shorebirds through woodpeckers and completes the treatment of the nonpasserines. Information on habitat, limiting factors, and status are dealt with for the three main bird seasons: breeding, migration, and winter. It is an essential reference for biologists, planners, environmental consultants, and other resource professionals involved in environmental issues and management pertaining to birds. It is also a valuable reference for serious birders.
Category: Nature

The Beaver

Author : Dietland Müller-Schwarze
ISBN : 080144098X
Genre : Nature
File Size : 78.79 MB
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Beavers can and do dramatically change the landscape. The beaver is a keystone species—their skills as foresters and engineers create and maintain ponds and wetlands that increase biodiversity, purify water, and prevent large-scale flooding. Biologists have long studied their daily and seasonal routines, family structures, and dispersal patterns. As human development encroaches into formerly wild areas, property owners and government authorities need new, nonlethal strategies for dealing with so-called nuisance beavers. At the same time, the complex behavior of beavers intrigues visitors at parks and other wildlife viewing sites because it is relatively easy to observe.In an up-to-date, exhaustively illustrated, and comprehensive book on beaver biology and management, Dietland Müller-Schwarze and Lixing Sun gather a wealth of scientific knowledge about both the North American and Eurasian beaver species. The Beaver is designed to satisfy the curiosity and answer the questions of anyone with an interest in these animals, from students who enjoy watching beaver ponds at nature centers to homeowners who hope to protect their landscaping. Photographs taken by the authors document every aspect of beaver behavior and biology, the variety of their constructions, and the habitats that depend on their presence. Beaver facts:•Just as individual beavers shape their immediate surroundings, so did the distribution of beavers across North America influence the paths of English and French explorers and traders. As a result of the fur trade, beavers were wiped out across large areas of the United States. Reintroduction efforts led to the widespread establishment of these resilient animals, and now they are found throughout North America, Europe, and parts of the southern hemisphere.•Beaver meadows provided early settlers with level, fertile pastures and hayfields.•Based on the fossil record, the smallest extinct beaver species were the size of a muskrat, and the largest may have reached the size of a black bear (five to six times as large as today's North American beavers). Beaver-gnawed wood has been found alongside the skeleton of a mastodon.•Some beavers remain in the home lodge for an extra year to assist their parents in raising younger siblings. They feed, groom, and guard the newborn kits.•In 1600, beaver ponds covered eleven percent of the upper Mississippi and Missouri Rivers' watershed above Thebes, Illinois. Restoring only 3 percent of the original wetlands might suffice to prevent catastrophic floods such as those in the early 1990s.
Category: Nature

The Behaviour Of Teleost Fishes

Author : Tony J. Pitcher
ISBN : 9781468482614
Genre : Juvenile Nonfiction
File Size : 55.62 MB
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This book is about the behaviour of teleosts, a well-defined, highly successful, taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are weH over 22000 living species of teleosts, including nearly all those of importance in com mercial fisheries and aquaculture. Teleosts are represented injust about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour is the primary interface between these effective survival machines and their environment: behavioural plasticity is one of the keys to their success. The study of animal behaviour has undergone revolutionary changes in the past decade under the dual impact of behavioural ecology and sociobiology. The modern body of theory provides quantitatively testable and experi mentaHy accessible hypotheses. Much current work in animal behaviour has concentrated on birds and mammals, animals with ostensibly more complex structure, physiology and behavioural capacity, but there is a growing body of information about the behaviour of fishes. There is now increasing awareness that the same ecological and evolutionary rules govern teleost fish, and that their behaviour is not just a simplified version of that seen in birds and mammals. The details of fish behaviour intimately reflect unique and efficient adaptations to their three-dimensional aquatic environment.
Category: Juvenile Nonfiction

Bobcat

Author : Kevin Hansen
ISBN : 9780199884728
Genre : Nature
File Size : 28.49 MB
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Bobcat: Master of Survival tells the story of the most adaptable and resilient wild feline in the world. While half the wild cat species worldwide are in danger, the bobcat is thriving, even expanding its range in North America. Why are bobcats flourishing when so many other wild felines are advancing towards extinction? The book explains how scientists apply the latest in wildlife research technology to probe this diminutive predator's habits and behavior. The reader is invited inside the bobcat's world to see how they hunt, kill prey, raise their young, coexist with humans, and deftly navigate the endless obstacles to survival. The bobcat is both the most studied and the most exploited wild feline in the world. Millions have been killed for the fur trade. They were the focus of major controversy in the 1970s that transformed international conservation of wild felines. The book discusses how economics and politics play a far greater role in bobcat management and conservation than does science. Bobcat is the most comprehensive and up-to-date book on the natural history and management of bobcats to appear in 40 years.
Category: Nature