The Return of Caribou to Ungava

Name: The Return of Caribou to Ungava
Brand: McGill-Queen's University Press
Price: 50.99 EUR
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A. T. Bergerud Stuart N. Luttich Lodewijk Camps(Autor*in)

McGill-Queen's University Press

1. Auflage

Erschienen am 22. Juni 2014

657 Seiten

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Inhalt

Cover
Contents
Donors
Acknowledgments
List of Tables
List of Figures
Preface
Plates
1 Setting and Background
The Eruption of the George River Caribou Herd
Ungava
Boundaries of Vegetative Zones
Plant Species Composition of Vegetative Zones
Forest Fires
Mammalian Fauna
Those Other Animals
Native Inhabitants
2 Taxonomy, Ecotypes, Herds, and Morphology
Ecotypes
Migratory Herds
Morphology
3 The Return of Caribou to Ungava after the Last Ice Age
Postglacial Dispersal and Ecotypes
Recolonization
4 The Abundance and Distribution of Sedentary Caribou
Distribution
Population Dynamics Background
Population Dynamics of the Major Herds
Population Regulation and Management
5 Past Population Fluctuations
Postglacial Distribution of Ungava Caribou
Historical Distribution
Past Fluctuation of Numbers
At Home in the Wilderness: The Mushuau Innu and Caribou
6 Causal Factors in Historical Fluctuations
Early Explanations
A Recent Hypothesis: Increased Snow Cover
Shortage of Green Forage and Cold Springs
7 Forage and Range
Range Survey, 1988-89
Food Preferences
The Condition of Winter Pastures
The Condition of Summer Pastures
Activity and Energy Budgets
Range Trends
A Look Ahead
8 Body and Antler Growth
The Measurement of Growth and Body Size
Body Size
Fetal Growth
Birth Mass of Calves
Growth of Calves and Yearlings
Retarded Growth and Compensation
Adult Body Mass
Antler Size
Growth and Demography
9 Physical Condition
Antler and Calving Indexes
Antler Condition Index
Female Antler Casting
Chewing of Antlers
Calving Chronology
Nutrition and Antler Casting
Liver Weights
Fat Cycle
Energy Expenditure during Migration
Migration/Habitat Strategies and Fat Deposition
Fat Deposition Strategies
Trends in Condition Indices
10 Recruitment, Mortality, and Population Growth
Basic Indices
Pregnancy/Parous Rates
Calf Mortality Statistics
Adult Mortality
Population Growth
The Decline Phase, 1988-93
11 Limiting Factors
Starvation
Accidents
Hunting Mortality
Weather Factors
Disease and Parasite
Predation
Differential Mortality of Males and Females
12 The Use of Space
Aerial Surveys and Radio Monitoring
The Centre of Habitation
Range Expansion
Range Contraction
Range Predictability
Calving, Rutting, and Winter Distributions
Movement Routes
Releasing/Expansion Densities
The "Social Stimulus" Concept
Density-Dependent Changes in the Use of Space
13 Environmental Factors in Distribution and Movement
Basic Quantification Methods
Seasonal Changes in Mobility
Annual Dispersion and Fidelity in Distributions
Environmental Influences on Seasonal Distributions
14 Optimal Foraging and Predation Risk in the Winter and Growing Season
Distribution Strategy in Winter
Spacing Strategy in the Growing Season
Competitive Interference at High Densities
Global Warming and Optimal Foraging/Predation Risk
15 Spacing Theory of Calving and Migration
Migration Hypotheses
Nutrition Destination Hypothesis
Predation Displacement Hypothesis
The Location and Shifting of Calving Grounds
Females Shifted to Reduce Predation Risk
Snow Cover on Calving Grounds
Calving Grounds at Maximum Distance from Tree Line
Density Dependence of Calving Ground Location
Timing of Births
Synchrony of Births
Homing and Navigation
Experimental Evidence of True Navigation
Birth Site Fidelity
Homing of Yearlings
16 Population Regulation
Parturition Rates
Summer Calf Mortality
Winter Mortality of Calves
Adult Mortality
The Foraging Carrying Capacity
Winter Starvation
Range Fecundity and Calf Survival
Population Model
A Shortage of Summer Foods
Final Comments
Appendix: Summer Energy Budgets for Lactating Females
Bibliography
Index
A
B
C
D
E
F
G
H
I
J
L
M
N
O
P
R
S
T
U
V
W

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