Polar Ecosystems
What are polar ecosystems food webs based on?
Ocean * aquatic * organisms
The permanently frozen layer that prevents plant roots from growing too deep in Artic Tundras’ is called :
Permafrost
T or F:
The most impactful limiting factor in Tundras is precipitation
False.
Temperature
Examples of Negative Effects of Climate Change
Coral Bleaching
More intense hurricanes
change in temperature and precipitation
insects live longer
human health impacts
ocean acidification
increased sea levels
melting land + sea levels
What in an Polar Ecosystem receives high levels of Albedo
white ice ( snow)
common producers found in polar ecosystems are_________ & ______
Phytoplankton and algae
Common adaption found in Artic Tundras
camouflage
which is colder; artic or alpine?
artic
how does climate change affect the habitat of polar bears?
it melts sea caps, which takes away their natural habitat, making them search for food and shelter elsewhere.
all 5 trophic levels:
primary producer
primary consumer
secondary consumer
tertiary consumer
quaternary consumer
what types of organisms are found at the top of polar ecos oceans , and how can the water be described at the bottom of the ocean and why?
top- producers like algae and plankton
bottom- saltwater is found at the bottom of the ocean, being that is its dense, it sinks to the bottom of the surface.
describe an artic tundra
cold, treeless short growing season, with a land based food web.
True or False Alpine tundras are found at very high latitudes where large trees cannot grow.
False.
High ALTITUDES, not Latitudes.
More polar bears are seen in Alaskan and Siberian villages than had been observed in the past.
Does this mean polar bear populations are increasing?
No, because of melting sea ice, polar bears have issues finding habitats and food so they're travelling to villages.
The main difference between polar ecosystems and artic/alpine tundras are:
A. Temperature
B.Precipitation
C. Food web
D. Humidity
C. Food Web
Polar Ecosystems overlaps with _____ and ________ Tundras.
Artic and Antarctic Tundra
T or F
The land is too cold and dry to support vegetation in an Antarctic Tundra.
True
What’s the definition of a tree line
The edge of the habitat where trees can’t grow, because of hgh a
latitude or altitude.
why is low albedo so bad for environments with open oceans or dark colored land?
These environments absorb the heat rather than reflecting it, which can increase water temperatures, and cause sea ice to melt.
What’s formed when the top part of soil gets soaked from rain or melting snow?
bogs and marshes
What can be considered an apex predator in a Polar Ecosystem?
Polar bears
Whales
What is the average summer temperature of an Artic Tundra? the lowest and highest temperature it can reach in °C.
3-12°C
Name atleast 2 places the Artic Tundra encircles.
* 2 places considered Artic Tundras that we’ve discussed*
Northern Canada, Nothern Alaska, Greenland, Russia
What negative affect has climate change had on permafrost?
Permafrost which is meant to be permanently frozen, is melting at a rapid pace, causing destruction of roads, decomposition of animals rising to surface which affects the greenhouse gases in the air,etc.
Describe the weather In the southern hemispheres during summer
Summers would be considered cold and dark, being that the weather in southern hemispheres are opposite than northern.