ecosystem relationships
DESCRIPTION
Ecosystem Relationships. Abiotic. Abiotic Factors: those non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems Soil, water, air, temperature, sunlight. Biotic. Biotic Factors: any living thing that helps shape an ecosystem - PowerPoint PPT PresentationTRANSCRIPT
Ecosystem Relationships
Abiotic
Abiotic Factors: those non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems
Soil, water, air, temperature, sunlight
Biotic
Biotic Factors: any living thing that helps shape an ecosystem
5 kinds of interactions between biotic factors Competition
Predation
Mutualism
Commensalism
Parasitism
Competition A contest between organisms
for a resource
Examples: Food
Water
Sunlight
Space
Reproductive mate
Competition Fitness of one organism is lowered by the presence of another
Interspecific Competition Competition between members of different species
Intraspecific Competition Competition between members of the same species
Predation
A biological interaction where one organism preys on another
Beneficial for one organism (the predator) and detrimental for the other (the prey)
Mutualism
Two organisms of different species exist in a relationship in which each individual benefits from the activity of the other
Symbiosis: a close and often long-term interaction between two or more different biological species
Commensalism
Relationship between two organisms where one benefits without affecting the other
Symbiosis
Parasitism
Relationship between species, where one (the parasite) benefits at the expense of the other (the host)
Symbiosis
Conservation Status
Indicates whether a group still exists and how likely the group is to become extinct
Conservation Status
Extinction: the end of a species
Conservation Status
Extirpated: condition of a species that ceases to exist in a certain geographic area Also called local extinction
Conservation Status
Endangered: a species that is at serious risk of extinction
Conservation Status
Threatened: any species that are vulnerable to endangerment in the near future, if current conditions do not change
Special Concern: any species that may become threatened or endangered due to a combination of factors
Invasive Species
Invasive Species: an organism that is not native to a specific location Also called an introduced species
Often have a tendency to spread, which is believed to cause damage to the environment, human economy and/or human health
Asian long-horned beetle Pest!
Cause death of elm, maple, poplar, and willow trees