2.6 Flashcards
(36 cards)
abiotic
Physical non living factors of an environment e.g.. temperature
adaptation
The action or processes of adapting (changing) to suit a changing or changed environment.
Age structure
Features of the age of the population.
Biotic
Living factors of an environment e.g.. moss
Carnivore
An animal or plant (particularly insect- and invertebrate-eating plants) that requires a staple diet consisting mainly or exclusively of animal tissue through predation or scavenging.
community
An ecological unit composed of a group of organisms or a population of different species occupying a particular area, usually interacting with each other and their environment.
competition
A symbiotic relationship between or among living things for resources, such as food, space, shelter, mate, ecological status, etc.
consumer
An organism that generally obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food from inorganic sources; a heterotroph.
Decomposer
An organism whose ecological function involves the recycling of nutrients by performing the natural process of decomposition as it feeds on dead or decaying organisms.
Density
compactness
Distribution
The specific location or arrangement of continuing or successive objects or events in space or time.
Ecosystem
A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit.
habitat
Place where an organism or a biological population normally lives or occurs.
Herbivore
.Animals that consume plant material as a source of obtaining [[energy.
Kite Diagram
Kite diagrams: help to illustrate zonation by showing how the amount of different vegetation types and amount of bare ground change as one moves along the transect.
Limiting factor
A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem.
Mark and recapture
system used to estimate the population of an animal
Microclimate
The climate of a very small or restricted area.
Mortality
The death rate. The ratio of the total number of deaths to the total population. The ratio of deaths in an area to the population of that area; expressed per 1000 per year.
Mutualism
Mutualism is the way two organisms biologically interact where each individual derives a fitness benefit
Natality
The birthrate, which is the ratio of total live births to total population in a particular area over a specified period of time; expressed as childbirths per 1000 people (or population) per year
Niche
(1) The specific area where an organism inhabits.
(2) The role or function of an organism or species in an ecosystem.
(3) The interrelationship of a species with all the biotic and abiotic factors affecting it.
Omnivore
Omnivore: An animal that feeds on both plants and animals to survive. Humans are an example
Parasitism
A form of symbiosis in which one organism (called parasite) benefits at the expense of another organism usually of different species (called host). The association may also lead to the injury of the host.