18 Questions
What is the effect of evergreen shrubs on warming and carbon release?
They reduce warming and carbon release
What happens to rare plant species in the arctic due to climate change?
They become more rare
What is the effect of caribou on permafrost?
They can increase permafrost thaw at high densities
What is the impact of lemming population fluctuations on the ecosystem?
It increases grazing pressure on shrubs
What is the result of herbivore exclusion on rare plant species?
It increases the population of rare species
What is the effect of caribou migration on the ecosystem?
It increases permafrost formation
What is the result of snow geese overgrazing vegetation?
Reduction in arthropod communities
What is the effect of grizzly bears digging on the ecosystem?
Increase in ecosystem heterogeneity
What is the relationship between flower colour and pollinators in glaciated regions?
High abundance of white and yellow flowers are pollinated by flies
What is the effect of arctic foxes on vegetation?
Increase in soil nutrients
What is the result of carnivores and arctic plants interacting through biopedturbation?
Increase in ecosystem heterogeneity
What is the impact of higher snow on den sites of arctic foxes?
Higher insulation
What is one of the consequences of shrub encroachment onto tundra?
Reduced biodiversity
What is a characteristic of plant-animal interactions in the Arctic?
Low diversity of species
What is the impact of caribou on deciduous shrubs in the Arctic?
Reduction in shrub density
What is a consequence of grazing pressure on rare species?
Extinction
What is a factor influencing permafrost formation and caribou migration?
Soil temperature
What is a characteristic of herbivory in the Arctic?
Low plant defense
Explore the intricate relationships between Microtine, shrubs, and the Arctic ecosystem. Learn how voles and lemmings affect dwarf shrubs, and how this impacts permafrost and rare plant species. Test your knowledge of the delicate balance of this unique ecosystem.
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