Unit 6 Study Guide Flashcards
Order of hierarchal nature of ecology
organismal, population, community, ecosystem, landscape, biosphere
first level of the hierarchal structure for ecology, focuses on morphology (bodily structure), behavior, and distribution of organisms
organismal
second level of the hierarchal structure for ecology, focuses on abundance within an area (same time and showing signs of reproduction)
population
third level of the hierarchal structure for ecology, focuses on species interaction (predation, competition, symbiosis)
community
fourth level of the hierarchal structure for ecology, focuses on biotic factors interacting with abiotic factors (E flow and cycling of nutrients)
ecosystem
fifth level of the hierarchal structure for ecology, focuses on the arrangement of ecosystem in an area (mountainscapes and seascapes)
landscape
sixth level of the hierarchal structure for ecology, focuses on global interactions between biotic and abiotic factors
biosphere
model that says at the equator there is mostly water on a global perspective. Because of the heat, the water evaporates, rises, and begins to move towards the poles. As it does this, the water vapor cools and condenses into rain. The rain mainly falls before reaching the Tropics (Tropic of Cancer and Tropic of Capricorn), which is why most of the rainforests are between the equator and the Tropics. Deserts are along Tropic lines because of this loss of most of the rain before reaching the Tropics. In deserts (because of the heat), water is evaporated and mixes with water vapor from the oceans to rise into the atmosphere. As it moves towards the poles, it condenses and rains or snows below the polar circles (causing a lot of vegetation in this area). Because all the moisture is gone by the time the wind reaches the poles, they are considered deserts because of the small amount of rain received.
Hadley Cell Model
23.5 degrees latitude, North
Tropic of Cancer
23.5 degrees latitude, South
Tropic of Capricorn
0 degrees
equator
90 degrees
Poles
66.6 degrees
Arctic or Antarctic Circle
this effect is created by mountains and cause deserts on the backside. As winds come off the water, they have a lot of moisture. When they run into mountains, the air is forced upward resulting in the moisture cooling and condensing. This results in a lot of rain on the front side and little to no rain on the backside creating a desert.
Rain Shadow Effect
upper region of the ocean with light penetration
photic zone
lower region of the ocean without light penetration
aphotic zone
bottom of the ocean
benthic zone
communities of bottom dwelling, detritus feeding organisms
Benthos
deepest parts of the oceans (typically deep sea trenches)
Abyss
very harsh environment because of tides crashing and receding and rich in biodiversity (because of light for photosynthesis)
Intertidal Zone
rich in biodiversity (“Rainforests of the Oceans”), endangered and protected by laws, and found in warm water climates
Coral Reef
type of lake that is nutrient poor, very deep, and very cold. Appear clear because of lack of phytoplankton and nutrients at surface. Very few plants and animals because nutrients are at bottom and thermocline is hard to occur.
Oligiotrophic
type of lake that is nutrient rich, fairly shallow, and warm. Appear murky because of abundance of phytoplankton and dissolved nutrients in the water. Tend to have lots of plants and animals because of abundance of nutrients in reach.
eutrophic
type of lake with in between conditions. Moderate plants and animals present; mostly around the edges.
mesotrophic
Temperature gradients that occur within a body of water as it heats or cools.
Thermocline
located in mountains, waters are cold, clear, fast, narrow, nutrient poor, high dissolved O2 affects animals and plants that live here so most of them are hight oxygen demanding organisms such as trout. (comparable to oligiotrophic conditions)
headwaters