NPWRC Online Biological Resources
Species Accounts/Descriptions
By Type | By Taxon | By Geography |
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- Waterfowl
- Are Mallards Declining in North America?
- Assessment of a Mallard Model in Minnesota's Prairie Coteau
- Behaviour Patterns of Mallard (Anas Platyrhynchos) Pairs and Broods in Minnesota and North Dakota
- Birds of the St. Croix River Valley: Minnesota and Wisconsin
- Bufflehead Brood in Northeastern South Dakota
- Determinants of Breeding Distributions of Ducks
- Determinants of Mallard and Gadwall Nesting on Constructed Islands in North Dakota
- Diet of Canvasbacks During Breeding
- Differential Effects of Coyotes and Red Foxes on Duck Nest Success
- Duck Nest Success in the Prairie Pothole Region
- Duck Nesting in the Northern Great Plains
- Early Nesting Record of Hooded Merganser in North Dakota
- Effects of Harness Transmitters on Behavior and Reproduction of Wild Mallards
- Effects of Predator Exclosure Design on Duck Brood Movements
- Effects of Water Conditions on Clutch Size, Egg Volume, and Hatchling Mass of Mallards and Gadwalls in the Prairie Pothole Region
- Effects of Weather on Breeding Ducks in North Dakota
- Endangered and Threatened Species Recovery Program
- Environmental Characteristics Associated with the Occurrence of Avian Botulism in Wetlands of a Northern California Refuge
- Factors Associated with Autumn Rearing of Duck Broods in Temperate North America
- Factors Associated with Duck Nest Success in the Prairie Pothole Region of Canada
- Factors Influencing Summer Breeding in Prairie Ducks
- Factors Limiting Mallard Brood Survival in Prairie Pothole Landscapes
- Fall and Winter Foods of Northern Pintails in the Sacramento Valley, California
- Feeding Ecology of Northern Pintails and Green-winged Teal Wintering in California
- Food Habits of Diving Ducks in the Great Lakes After the Zebra Mussel Invasion
- Giant Canada Goose Flocks in the United States
- Habitat Use and Movements of Canvasback Broods in Southwestern Manitoba
- Homing and Reproductive Habits of Mallards, Gadwalls, and Blue-winged Teal
- Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards
- Importance of Individual Species of Predators on Nesting Success of Ducks in the Canadian Prairie Pothole Region
- Influence of Age and Selected Environmental Factors on Reproductive Performance of Canvasbacks
- Long-term Declines in Nest Success of Prairie Ducks
- Mallard Recruitment in the Agricultural Environment of North Dakota
- Mate Loss in Winter Affects Reproduction of Mallards
- Nesting Waterfowl and Water Birds on Natural Islands in the Dakotas and Montana
- Patterns of Variation in Clutch Sizes in a Guild of Temperate-Nesting Dabbling Ducks
- Population Energetics of Northern Pintails Wintering in the Sacramento Valley, California
- Potential Effects of Anthropogenic Greenhouse Gases on Avian Habitats and Populations in the Northern Great Plains
- Prairie Duck Populations and Predation Management
- Predictable Interregional Movements by Female Northern Pintails During Winter
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Red Fox Predation on Breeding Ducks in Midcontinent North America
- Relationships of Habitat Patch Size to Predator Community and Survival of Duck Nests
- A Review of the Problem of Lead Poisoning in Waterfowl
- Snow Goose Population Problem: Part I, II, III
- Spring-staging Ecology of Midcontient Greater White-fronted Geese
- Survival of Adult Female Northern Pintails in Sacramento Valley, California
- Survival of Postfledging Mallards in Northcentral Minnesota
- Survival of Radiomarked Canvasback Ducklings in Northwestern Minnesota
- Temporal Flexibility of Reproduction in Temperate-breeding Dabbling Ducks
- Tundra Swan Habitat Preferences During Migration in North Dakota
- Variation in Body Mass of Wild Canvasback and Redhead Ducklings
- Waterfowl Communities in the Northern Plains
- Weights of Wild Mallard Anas platyrynchos, Gadwall A. strepera, and Blue-winged Teal A. discors During the Breeding Season
- Wetland Preferences of Prairie-nesting Mallards: Implications to Settling Patterns and Population Trends
- Wetland Use, Settling Patterns, and Recruitment in Mallards
- Wood Duck (Aix sponsa)
- Non-waterfowl Birds
- American Bittern Depredates Sora
- Area Requirements of Grassland Birds: A Regional Perspective
- Attracting Bluebirds and Other Cavity Nesting Songbirds in North Dakota
- Avifauna of an Early Successional Habitat Along the Middle Missouri River
- The Bald Eagle in Oklahoma
- Birds of the St. Croix River Valley: Minnesota and Wisconsin
- Brown-headed Cowbirds in Grasslands: Their Habitats, Hosts, and Response to Management
- A Closer Look Series from North Dakota Outdoors
- Communal Roosting and Foraging Behavior of Staging Sandhill Cranes
- A Comprehensive Review of Observational and Site Evaluation Data of Migrant Whooping Cranes in the United States, 1943-99
- Conditioning of Sandhill Cranes During Fall Migration
- Cowbird Parasitism in Grassland and Cropland in the Northern Great Plains
- The Cranes: Status Survey and Conservation Action Plan
- Density and Fledging Success of Grassland Birds in Conservation Reserve Program Fields in North Dakota and West-central Minnesota
- Eastern Bluebird (Sialia sialis)
- Effects of Management Practices on Grassland Birds
- Effects of Management Practices on Wetland Birds
- Endangered and Threatened Species Recovery Program
- Eskimo Curlew: A vanishing species?
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 1998
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 1999
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 2000
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 2001
- Evidence for Edge Effects on the Multiple Levels in Tallgrass Prairie
- Fat Dynamics of Arctic-nesting Sandpipers during Spring in Mid-continental North America
- Forest and Rangeland Birds of the United States
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- Frequency of Egg and Nestling Destruction by Female Brown-headed Cowbirds at Grassland Nests
- Habitat Associations of Migrating and Overwintering Grassland Birds in Southern Texas
- Habitat Distribution and Territoriality in the Dickcissel and Red-Winged Blackbird
- Habitat Use and Reproductive Success of Western Snowy Plovers at New Nesting Areas Created for California Least Terns
- Hawks, Eagles, and Falcons of North Dakota
- Le Conte's Sparrow: Ephemeral Jewel of the Northern Great Plains
- Le Conte's Sparrows Breeding in Conservation Reserve Program Fields: Precipitation and Patterns of Population Change
- Marshbirds and Shorebirds of North Dakota
- Native Plants and Shorebirds of the Chaplin Lake Area
- North Dakota's Endangered and Threatened Species
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- Oklahoma's Summer Jewels Ruby-throated Hummingbirds
- Oklahoma's Tropical Ambassador The Scissor-tailed Flycatcher
- The Owls of North Dakota
- Patch Size and Landscape Effects on Density and Nesting Success of Grassland Birds
- Piping Plovers and Least Terns of the Great Plains and Nearby: A Draft Protocol for Assessing Piping Plover Reproductive Success on Great Plains Alkali Lakes
- Promise for Plovers
- Proximate and Landscape Factors Influence Grassland Bird Distributions
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Reproductive Success of Belding's Savannah Sparrows in a Highly Fragmented Landscape
- The Ring-necked Pheasant in North Dakota
- Ruby-Throated Hummingbird in North Dakota
- Sandhill Cranes and the Platte River
- Songbirds of North Dakota
- Sparrows of North Dakota
- Time-specific Variation in Passerine Nest Survival: New Insights Into Old Questions
- Variability in Vegetation Effects on Density and Nesting Success of Grassland Birds
- White-tailed Deer (Odocoileus virginianus) Predation on Grassland Songbird Nestlings
- Mammals
- Age-Related Reproduction in Striped Skunks (Mephitis mephitis) in the Upper Midwest
- Alpha Status, Dominance, and Division of Labor in Wolf Packs
- Alpha1-Antitrypsin Polymorphism and Systematics of Eastern North American Wolves
- Breeding Season of Wolves, Canis lupus, in Relation to Latitude
- The Challenge and Opportunity of Recovering Wolf Populations
- Coyote, Canis latrans, Use of Commercial Sunflower, Helianthus spp., Seeds as a Food Source in Western Kansas
- Daily Departure and Return Patterns of Wolves, Canis lupus, from a Den at 80°N Latitude
- Death of a Wild Wolf from Canine Parvoviral Enteritis
- Demographic Response of Black Bears at Cold Lake, Alberta, to the Removal of Adult Males
- Denning Behavior of Non-gravid Wolves
- Details of Extensive Movements by Minnesota Wolves (Canis lupus)
- Differential Effects of Coyotes and Red Foxes on Duck Nest Success
- Differential Use of a Wolf, Canis lupus, Pack Territory Edge and Core
- Dispersal Patterns of Red Foxes Relative to Population Density
- Endangered and Threatened Species Recovery Program
- Estimated Areal Extent of Colonies of Black-tailed Prairie Dogs in the Northern Great Plains
- Estimated Costs of Maintaining a Recovered Wolf Population in Agricultural Regions of Minnesota
- An Example of Endurance in an Old Wolf, Canis lupus
- First Record of Coccidiosis in Wolves, Canis lupus
- Foods and Foraging of Prairie Striped Skunks During the Avian Nesting Season
- Foods of American Badgers in West-central Minnesota and Southeastern North Dakota During the Duck Nesting Season
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- House Bat Management
- Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards
- Importance of Individual Species of Predators on Nesting Success of Ducks in the Canadian Prairie Pothole Region
- Incidence of Mink, Mustela vison, and River Otter, Lutra canadensis, in a Highly Urbanized Area
- Is Incest Common in Gray Wolf Packs?
- Killing of a Muskox, Ovibos moschatus, by Two Wolves, Canis lupus, and Subsequent Caching
- Lack of Reproduction in Muskoxen and Arctic Hares Caused by Early Winter?
- Leadership Behavior in Relation to Dominance and Reproductive Status in Gray Wolves, Canis lupus
- Leadership in Wolf, Canis lupus, Packs
- Lions and Bears in North Dakota?
- Markov Chain Monte Carlo Estimation of Species Distributions: a Case Study of the Swift Fox in Western Kansas
- Movements and Habitat Use of Franklin's Ground Squirrels in Duck-Nesting Habitat
- North Dakota's Endangered and Threatened Species
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- Observed Interactions Between Coyotes and Red Foxes
- Oklahoma Bats...Coming Out of the Dark
- Patterns of Prey Selection by Wolves in Denali National Park, Alaska
- Population and Movement Characteristics of Radio-Collared Striped Skunks in North Dakota During an Epizootic of Rabies
- Prairie Duck Populations and Predation Management
- Prevalence of Giant Kidney Worm (Dioctophyma renale) in Wild Mink (Mustela vison) in Minnesota
- Prolonged Winter Undernutrition and the Interpretation of Urinary Allantoin:Creatinine Ratios in White-tailed Deer
- Proximity of White-tailed Deer, Odocoileus virginianus, Ranges to Wolf, Canis lupus, Pack Homesites
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- A Record Large Wolf, Canis lupus, Pack in Minnesota
- Recovery Program: Endangered and Threatened Species, 1994
- Red Fox Predation on Breeding Ducks in Midcontinent North America
- Regurgitative Food Transfer Among Wild Wolves
- Relationships of Habitat Patch Size to Predator Community and Survival of Duck Nests
- Seasonal Food Habits of Swift Fox (Vulpes velox) in Cropland and Rangeland Landscapes in Western Kansas
- Small Mammals of North Dakota
- Standing Over and Hugging in Wild Wolves, Canis lupus
- Summer Movements and Behavior of an Arctic Wolf, Canis Lupus, Pack without Pups
- A Ten-year History of the Demography and Productivity of an Arctic Wolf Pack
- Tolerance by Denning Wolves, Canis lupus, to Human Disturbance
- Twenty-year Home-range Dynamics of a White-tailed Deer Matriline
- The Usefulness of GPS Telemetry to Study Wolf Circadian and Social Activity
- White-tailed Deer (Odocoileus virginianus) Predation on Grassland Songbird Nestlings
- Winter Severity and Wolf Predation on a Formerly Wolf-free Elk Herd
- Wolf Pack Size and Food Acquisition
- Wolf-Bison Interactions in Yellowstone National Park
- Amphibians & Reptiles
- Endangered and Threatened Species Recovery Program
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Reptiles and Amphibians of North Dakota
- A Survey of the Herpetofauna of the Comanche National Grasslands in Southeastern Colorado
- Surveys of Calling Amphibians in North Dakota
- Fish
- Endangered and Threatened Species Recovery Program
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- The Missouri River System's Other Fish
- North Dakota's Endangered and Threatened Species
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Insects/Invertebrates
- Aquatic Invertebrate Ecology During a Simulated Botulism Epizootic in a Sacramento Valley Wetland
- Butterflies of Glacier National Park, Montana
- Butterfly Surveys at Selected Sites in North Dakota
- Caterpillars of Eastern Forests
- Caterpillars of Pacific Northwest Forests and Woodlands
- The Clamor Over Clams
- A Closer Look Series from North Dakota Outdoors
- Endangered and Threatened Species Recovery Program
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- An Introduction to Ants (Formicidae) of the Tallgrass Prairie
- Macromoths of Northwest Forests and Woodlands
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Species Composition and Trophic Structure of Insect Communities in Texas Prairies
- Plants
- Aquatic and Wetland Vascular Plants of the Northern Great Plains
- An Assessment of Exotic Plant Species of Rocky Mountain National Park
- Avian Use of Purple Loosestrife Dominated Habitat Relative to Other Vegetation Types in a Lake Huron Wetland Complex
- Biological Control of Leafy Spurge
- Cattail Management Symposium
- Dynamics of Green Ash Woodlands in Theodore Roosevelt National Park
- Endangered and Threatened Species Recovery Program
- First Flowering Dates and Flowering Periods of Prairie Plants at Woodworth, North Dakota
- Native Plants and Shorebirds of the Chaplin Lake Area
- Native Wildflowers of the North Dakota Grasslands
- North Dakota's Endangered and Threatened Species
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- Plant Community Patterns on Upland Prairie in the Eastern Nebraska Sandhills
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Species Abstracts of Highly Disruptive Exotic Plants
- Spread, Impact, and Control of Purple Loosestrife (Lythrum salicaria) in North American Wetlands
- Wetland Plants and Plant Communities of Minnesota and Wisconsin
- Wetland Resources of Eastern South Dakota
- Wyoming Rare Plant Field Guide
- Endangered/Threatened Species
- The Cranes: Status Survey and Conservation Action Plan
- Endangered and Threatened Species Recovery Program
- Eskimo Curlew: A vanishing species?
- Fragile Legacy Endangered, Threatened and Rare Species of South Dakota
- North Dakota's Endangered and Threatened Species
- North Dakota's Federally Listed Endangered, Threatened and Candidate Species 1995
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Wyoming Rare Plant Field Guide
- Habitats
- Aquatic and Wetland Vascular Plants of the Northern Great Plains
- Assessment of a Mallard Model in Minnesota's Prairie Coteau
- Avian Use of Purple Loosestrife Dominated Habitat Relative to Other Vegetation Types in a Lake Huron Wetland Complex
- Determinants of Mallard and Gadwall Nesting on Constructed Islands in North Dakota
- Dynamics of Green Ash Woodlands in Theodore Roosevelt National Park
- Eastern Bluebird (Sialia sialis)
- Effects of Climate on Numbers of Northern Prairie Wetlands
- Environmental Characteristics Associated with the Occurrence of Avian Botulism in Wetlands of a Northern California Refuge
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 1998
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 1999
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 2000
- Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 2001
- Habitat Distribution and Territoriality in the Dickcissel and Red-Winged Blackbird
- An Introduction to Ants (Formicidae) of the Tallgrass Prairie
- Le Conte's Sparrow: Ephemeral Jewel of the Northern Great Plains
- Patch Size and Landscape Effects on Density and Nesting Success of Grassland Birds
- Potential Effects of Anthropogenic Greenhouse Gases on Avian Habitats and Populations in the Northern Great Plains
- Proximate and Landscape Factors Influence Grassland Bird Distributions
- Reproductive Success of Belding's Savannah Sparrows in a Highly Fragmented Landscape
- Spread, Impact, and Control of Purple Loosestrife (Lythrum salicaria) in North American Wetlands
- A Survey of the Herpetofauna of the Comanche National Grasslands in Southeastern Colorado
- Survival of Postfledging Mallards in Northcentral Minnesota
- Variability in Vegetation Effects on Density and Nesting Success of Grassland Birds
- Water-level Fluctuation in Wetlands as a Function of Landscape Condition in the Prairie Pothole Region
- Wetland Plants and Plant Communities of Minnesota and Wisconsin
- Wetland Resources of Eastern South Dakota
- Wetlands of the Prairie Pothole Region: Invertebrate Species Composition, Ecology, and Management
- Wood Duck (Aix sponsa)
- Other/Unclassified