By 1. Physical and Chemical environment. 2. Depth. 3. Amount of nutrients.
How much of the earth do oceans cover?
How does marine life influence the worlds oxygen and carbondioxide?
The supply a large part of oxygen and use up a lot of CO2
What is the Photic Zone?
The Zone of an aquatic biome at the surface of the body of water where there is sufficient light for photosynthesis.
the zone in an aqutic biome that lies beneth the photic zone where little light penetrates, hindering photosynthetic activity.
the photic zone and aphotic zone.
the bottom of the ocean floor
The bottom part of all aquatic biomes, deep or shallow, that is composed of sand and organic and inorganic sediments.
Communities of organisms found in the benthic zone.
Dead organic matter that comes from the photic zone to feeds organisms in the benthic zones.
In aquatic biomes the narrow layer of abrupt temperature change that separates the more uniformly warm upper layer from the more uniform cold deeper waters
Explain the semiannual mixing of waters of temperate lakes
During the winter and summer months cold water is separated from warm water due to the difference in density of water differing in temperatures. During Spring and Fall the temperature of the lake becomes uniform and winds cause the mixing of lake water and with it the mixing of organic material and oxygen.
True or False, Species distributions are a consequence of both ecological and evolutionary interactions through time.
The movement of individuals or gametes away from their area of origin or from centers of high population density.
What can be done to determine if dispersal is a key limiting the distribution of a species?
observations can be made from the result of intentional of accidental transplants of the species to areas where it was previously absent. If it survives than it can be concluded that its potential range is larger than its actual range.
How can habitat selection behavior affect distribution of a species?
The distribution is limited when a species will select only a certain environment, even though it could survive in others.
What are some biotic factors that affect distribution?
Negative interaction with preditors or herbivores, lack or presence of pollinators, food resources, parasites, pathogens, and competition.
How is temperature a factor in animal dispersal?
Because of temperatures effect on biological processes it has a great effect on dispersal of an organism. (freezing cells, denatured proteins, stress on maintaining internal temperatures,
What is waters effect on animal dispersal
The distribution of animals reflect their ability to obtain and conserve water. Also, in aquatic environments water affects oxygen availibility.
True or False, Salinity has little to no effect on dispersion.
False, most aquatic organisms are restricted to either fresh or salwater by their limited ability to osmoregulate.
How does sunlight affect distribution?
Plants may not grow if they have insufficient sunlight
aquatic environments absorb light every meter of depth (photosynthesis occurs near surface)
Too much light can increase temperature of organisms that cannot move to cool
high elevation leads to more exposure to UV damage (Tree lines)..................
How does Rocks and Soil effect dispersion?
The pH, mineral composition, and physical structure of rocks and soil limit the distribution of plants and thus the animals that feed on them.
What are some abiotic factors that affect dispersion?
Temperature, Water and Oxygen, Salinity, Sunlight, Rocks and Soil.
Other things to study. Zonation on pg. 1157. Aquatic Biomes on 1159-1162. Flow chart of factors limitin geographic distribution, pg. 164.
The shallow region of the ocean overlying the continental shelf.
The regions of the open sea that lie beyond in between the continental shelves
well-lit shallow waters near the shore of a lake; contain rooted and floating aquatic plants
region of lake with no rooted vegetation
Want to see the other 28 Flashcards in 52.3-52.4?JOIN TODAY FOR FREE!