Statements (101)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:bird
|
| gptkbp:adaptations |
adapted to cold climates
|
| gptkbp:adult_plumage |
distinctive head pattern
distinctive male and female plumage similar to females more camouflaged |
| gptkbp:behavior |
often seen swimming
|
| gptkbp:breeding_behavior |
low
estimated in thousands monogamous during breeding season depends on habitat quality |
| gptkbp:breeding_range |
gptkb:North_America
Arctic regions |
| gptkbp:breeding_season |
spring to summer
|
| gptkbp:call |
varied vocalizations
|
| gptkbp:climate_impact |
affected by changing weather patterns
|
| gptkbp:clutch_size |
5 to 7 eggs
|
| gptkbp:coloration |
black and white
dark brown and white in males mottled brown in females |
| gptkbp:conservation_efforts |
gptkb:Bird_Life_International
gptkb:U._S._Fish_and_Wildlife_Service gptkb:National_Audubon_Society pollution community involvement habitat protection public awareness campaigns fishing activities increased awareness oil spills habitat restoration efforts population monitoring human disturbance |
| gptkbp:conservation_status |
Near Threatened
vulnerable listed by IUCN |
| gptkbp:cultural_significance |
gptkb:Native_American_culture
traditional hunting important in indigenous cultures |
| gptkbp:diet |
aquatic invertebrates
|
| gptkbp:egg_color |
pale green
|
| gptkbp:environmental_concerns |
gptkb:Migratory_Bird_Treaty_Act
gptkb:Endangered_Species_Act |
| gptkbp:family |
gptkb:Anatidae
|
| gptkbp:fledging_period |
about 60 days
50 to 60 days |
| gptkbp:foraging_behavior |
shallow waters
diving for food |
| gptkbp:genus |
Polysticta
|
| gptkbp:habitat |
gptkb:Alaska
wetlands coastal areas |
| gptkbp:habitat_preference |
requires clean water
prefers undisturbed areas. |
| https://www.w3.org/2000/01/rdf-schema#label |
Steller's eider
|
| gptkbp:incubation_period |
28–30 days
|
| gptkbp:length |
50–60 cm
|
| gptkbp:lifespan |
10 years
|
| gptkbp:mating_system |
display flights
elaborate displays |
| gptkbp:migration |
autumn and spring
up to 2000 miles long-distance migrator migratory bird up to 3,000 km timed with food availability specific migratory pathways |
| gptkbp:migration_studies |
tracked using satellite technology
|
| gptkbp:nest_location |
near water
|
| gptkbp:nesting |
varies by location
ground-nesting ground nester affected by predation |
| gptkbp:nesting_site |
vegetation near water
|
| gptkbp:population_trend |
declining
declining in some areas |
| gptkbp:predators |
foxes
birds of prey |
| gptkbp:range |
North America and Eurasia
|
| gptkbp:research |
population genetics
behavioral ecology habitat use conducted in breeding grounds |
| gptkbp:research_interest |
studied for conservation purposes
|
| gptkbp:seasonal_activities |
varies seasonally
|
| gptkbp:size |
medium-sized duck
|
| gptkbp:social_behavior |
gregarious during non-breeding season
|
| gptkbp:social_structure |
flocks
often found in flocks |
| gptkbp:species |
gptkb:Polysticta_stelleri
|
| gptkbp:status |
vulnerable to habitat loss
|
| gptkbp:subspecies |
two recognized subspecies
|
| gptkbp:threats |
climate change
habitat loss |
| gptkbp:vocalization |
quacking sounds
|
| gptkbp:weight |
1.2–1.5 kg
|
| gptkbp:wildlife |
due to development and pollution
|
| gptkbp:wintering_range |
coastal waters
coastal waters of Asia |
| gptkbp:bfsParent |
gptkb:Georg_Wilhelm_Steller
|
| gptkbp:bfsLayer |
5
|