14. Climate and Other Niche Axes Flashcards
Terms & definitions
A species’ place in the world - the combination of physiological tolerances and resource requirements of a species
The ecological niche
Heated air cools as it rises, water vapour condenses and falls as rain near the equator, repeat cycle (strongest atmospheric cell)
Hadley cells
A narrow zone near the equator where the 2 Hadley cells converge, typically producing rain clouds across the pacific
Intertropical Convergence Zone
The Earth’s rotation deflects winds (ex. Hurricanes in the US follow an arc-like pattern)
Coriolis effect
Strong westerly winds found in the Southern Hemisphere, generally between the latitudes of 40 and 50 degrees - there is more land in North to break wind
The Roaring Forties
Air forced up mountainsides undergoes cooling, precipitates on upper windward slopes
Orographic precipitation
Uses data from a species’ present distribution to predict where a species can live - usually relies on climate data
Ecological niche modelling
A region (n-dimensional hypervolume) in a multi-dimensional space of environmental factors that affect the welfare of a species
Hutchinsonian niche
Natural oscillations in temperature have caused shifts in the geographic location of species habitat and range
Range shifts