Effects of Weather and Parasitic Insects on Summer Ecology of Caribou of the Delta Herd

Effects of Weather and Parasitic Insects on Summer Ecology of Caribou of the Delta Herd PDF Author: Frank Matthias Mörschel
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 160

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Effects of Weather and Parasitic Insects on Summer Ecology of Caribou of the Delta Herd

Effects of Weather and Parasitic Insects on Summer Ecology of Caribou of the Delta Herd PDF Author: Frank Matthias Mörschel
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 160

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Investigation of Regulating and Limiting Factors in the Delta Caribou Herd

Investigation of Regulating and Limiting Factors in the Delta Caribou Herd PDF Author:
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 54

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Canadian Journal of Zoology

Canadian Journal of Zoology PDF Author:
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 520

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Weather-based Indices of Parasitic Fly Activity and Abundance for the Bathurst Caribou Post-calving and Summer Range

Weather-based Indices of Parasitic Fly Activity and Abundance for the Bathurst Caribou Post-calving and Summer Range PDF Author: Leslie Witter
Publisher:
ISBN:
Category : Barren ground caribou
Languages : en
Pages : 37

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"The effects of climate change are occurring at an accelerated rate in the Arctic, with a warming of 4-7°C predicted over the coming century (ACIA 2004). Insect harassment is thought to be one of the most important causal links between warm summer temperatures and reduced body condition in caribou and reindeer (Rangifer tarandus) (Weladji et al. 2003); however, there is a paucity of information describing regional variation and the effects of changing environmental conditions on the activity and abundance of parasitic insects in the central Arctic. To gain a better understanding of insect-weather relationships on the post-calving/summer range of the Bathurst barren-ground caribou (Rangifer tarandus groenlandicus) herd, we recorded weather conditions and used carbon dioxide baited traps to monitor insect activity during 2007-2009. We used these data to generate indices representative of the activity levels of mosquitoes, black flies, and oestrid flies. Here, we describe the data requirements and calculations for generating the indices, as well as some perspective on the interpretation and application of the model predictions for future use. A full accounting of the methods and interpretation of the indices can be found in Witter (2010). This guidance is intended for biologists interested in monitoring current trends or predicting future levels of insect activity on the post-calving/summer range of the Bathurst caribou herd"--Page ii.

Animals' Influence on the Landscape and Ecological Importance

Animals' Influence on the Landscape and Ecological Importance PDF Author: Friedrich-Karl Holtmeier
Publisher: Springer
ISBN: 9401792941
Category : Science
Languages : en
Pages : 547

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In its first English-language edition, this book introduces the many-faceted interactions of animal populations with their habitats. From soil fauna, ants and termites to small and large herbivores, burrowing mammals and birds, the author presents a comprehensive analysis of animals and ecosystems that is as broad and varied as all nature. Chapter 2 addresses the functional role of animals in landscape ecosystems, emphasizing fluxes of energy and matter within and between ecosystems, and the effects of animals on qualitative and structural habitat change. Discussion includes chapters on the role of animal population density and the impacts of native herbivores on vegetation and habitats from the tropics to the polar regions. Cyclic mass outbreaks of species such as the larch bud moth in Switzerland, the mountain pine beetle and the African red-billed weaver bird are described and analyzed. Other chapters discuss Zoochory – the dispersal of seeds by ants, mammals and birds – and the influence of burrowing animals on soil development and geomorphology. Consideration extends to the impact of feral domestic animals. Chapter 5 focuses on problems resulting from introduction of alien animals and from re-introduction of animal species to their original habitats, discusses the effects on ecosystems of burrowing, digging and trampling by animals. The author also addresses keystone species such as kangaroo rats, termites and beavers. Chapter 6 addresses the role of animals in landscape management and nature conservation, with chapters on the impact of newcomer species such as animals introduced into Australia, New Zealand and Europe, and the consequences of reintroduction of species to original habitat. It also discusses the carrying capacity of natural habit, public attitudes toward conversation and more. The final section ponders the effects of climate on interactions between animals and their habitats.

Advances in Ungulate Ecology

Advances in Ungulate Ecology PDF Author: R. Terry Bowyer
Publisher: Frontiers Media SA
ISBN: 2889669106
Category : Science
Languages : en
Pages : 308

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Climate and Caribou

Climate and Caribou PDF Author: Elizabeth A. Lenart
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 152

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Escaping From Predators

Escaping From Predators PDF Author: William E. Cooper, Jr
Publisher: Cambridge University Press
ISBN: 1316368483
Category : Medical
Languages : en
Pages : 459

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Book Description
When a predator attacks, prey are faced with a series of 'if', 'when' and 'how' escape decisions – these critical questions are the foci of this book. Cooper and Blumstein bring together a balance of theory and empirical research to summarise over fifty years of scattered research and benchmark current thinking in the rapidly expanding literature on the behavioural ecology of escaping. The book consolidates current and new behaviour models with taxonomically divided empirical chapters that demonstrate the application of escape theory to different groups. The chapters integrate behaviour with physiology, genetics and evolution to lead the reader through the complex decisions faced by prey during a predator attack, examining how these decisions interact with life history and individual variation. The chapter on best practice field methodology and the ideas for future research presented throughout, ensure this volume is practical as well as informative.

Effects of Weather on Caribou Forage Productivity and Nutrition Within the Range of the Chisana Herd

Effects of Weather on Caribou Forage Productivity and Nutrition Within the Range of the Chisana Herd PDF Author: Elizabeth A. Lenart
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 80

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Entomology Abstracts

Entomology Abstracts PDF Author:
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 1012

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