ECOSYSTEMS Flashcards
Is broadly described as anything that affects an organism in its lifetime
Environment
Branch of biology that studies the interactions between organisms and their environment
Ecology
Composed of the organism in an area that are interacting with both biotic and abiotic
Ecosystem
Organization of ecological system
Individual, population, community, ecosystem, biome
The smallest unit of an ecosystem. Made up of smaller components of atoms and molecules arranged in an organized and hierarchical manner.
Organism
Group of organisms of the same species form
Population
Various species constitute different population of species and form a
Community
It includes the living organisms ( all the population) in an area and the non living aspects of the environment
Ecosystem
A geographic area on earth that J’s classified based on the plant and animal species that live in it
Biome
Made up of the parts of the earth where life exists
Biosphere
despite being tagged as one of 17 countries in the world to be “megadiverse” The Philippines suffers from the
Rapid loss of diversity
IUCN
International Union for conservation of nature
Is a linear sequence of organisms through which energy and nutrients pass as one organism feed on another organism
Food chain
Is the network of interconnected food chain
Food web
Two major types of ecosystem
Natural and artificial
More diverse in terms of species than artificial ecosystem, which have limited, usually targeted species
Natural ecosystems
It results the interaction between organisms and their environment. Composed of biotic and abiotic
Natural ecosystems
Two types of natural ecosystems
Terrestrial or aquatic
Are land based interactions of biotic and abiotic factors in a given geographic area
Terrestrial
Are water based and they can be classified as freshwater or marine ecosystems
Aquatic
Interaction between living and non living components
Ecosystem
Is a specific geographic area notable for the species that live here
Biome
Species diversity is lower than a biome
Ecosystem
Greatly affected by climactic factors such as ice, rainfall and snow
Biome
-140-450cm of annual rainfall.
-richest ecosystem on land, which experience high temperature and highprecipitation
-2 000 000 plant and animals
Tropical rainforest
-50-125cm rainfall
-tropical or subtropical grassland with seasonal rainfall and widely spaced trees or shrubs
-transitional ecosystem
Savanna
20-40cm rainfall
-scarce and unpredictable rain
-sparse vegetation and very limited animals that can survive by having inactive stages
Desert
-found halfway between the equator and the poles. Also called prairies
-soils are deep and fertile, often highly productive when converted into agricultural areas
Grassland
-mild but seasonal climates, plentiful rainfalls
- eastern United States
- deer, bears and raccoons
Temperate deciduous forest
-found along coastline with temperate climates
-common vegetation includes spruce, pines, and redwoods
Temperate evergreen forest
One of the largest biomes on earth
- prolonged and severe winters with very limited precipitation
Deer, wolves, bears
Taiga
Above taiga, little rain or snow
Few trees grow, permafrost (soil ice)
Tundra
Fresh water ecosystem can be categorized as
Stationary or running
Large bodies of freshwater that are relatively still or stationary
Lakes
Also stationary but smaller in sixe
Pond
Shallow part of the lake have variety of flowering plants such as cattails
Littoral zone
Part of lake with ni rooted vegetation
Limnetic zone
These are intermediate habitats between freshwater and terrestrial environment
Freshwater wetlands
Shallow wetlands found along river
Marshes
Look very much like flooded forest
Swamps
It makes up to 71% of Earth’s surface
Marine ecosystems
Photosynthetic activity is limited to the well lit, uppermost layer referred to as
Photic zone
Permanently dark because sunlight cannot reach it
Aphotic zone
It do not use sunlight to manufacture their own food
Chemoautotrophs
Ocean meets land
Intertidal zone
It goes farther from the land, which constitute the open ocean
Pelagic zone
