Apes 6

Front 1

intraspecific competition

Back 1

Two or more organisms of a single species trying to use the same limited resources in an ecosystem

Front 2

pioneer species

Back 2

First hardy species, often microbes, mosses, and lichens, which begin colonizing a site as the first stage of ecological succession.-

Front 3

secondary succession

Back 3

Sequential development of communities in an area in which natural vegetation has been removed or destroyed but the soil is not destroyed

Front 4

biodiversity where is it found?

Back 4

coral reef and rain forest

Front 5

symbiotic realationship

Back 5

Species interaction in which two kinds of organisms live together in an intimate association. Members of the participating species may be harmed by, benefit from, or be unaffected by the interaction

Front 6

ecological succession

Back 6

Process in which communities of plant and animal species in a particular area are replaced over time by a series of different and often more complex communities

Front 7

inertia

Back 7

Ability of a living system to resist being disturbed or altered

Front 8

native species

Back 8

Species that normally live and thrive in a particular ecosystem

Front 9

disturbance

Back 9

A discrete event that disrupts an ecosystem or community. Examples of natural disturbances include fires, hurricanes, tornadoes, droughts, and floods. Examples of human-caused disturbances include deforestation, overgrazing, and plowing

Front 10

midsuccessional plant species

Back 10

Grasses and low shrubs that are less hardy than early successional plant species

Front 11

theory of island biogeography

Back 11

The number of species found on an island is determined by a balance between two factors: the (1) immigration rate (of species new to the island) from other inhabited areas and (2) extinction rate (of species established on the island). The model predicts that at some point the rates of immigration and extinction will reach an equilibrium point that determines the islandUs average number of different species (species diversity).--

Front 12

keystone species

Back 12

Species that play roles affecting many other organisms in an ecosystem

Front 13

precautionary principle

Back 13

When there is scientific uncertainty about potentially serious harm from chemicals or technologies, decision-makers should act to prevent harm to humans and the environment

Front 14

predation

Back 14

Situation in which an organism of one species (the predator) captures and feeds on parts or all of an organism of another species (the prey

Front 15

edge effect

Back 15

The existence of a greater number of species and a higher population density in an ecotone than in either adjacent ecosystem

Front 16

parasitism

Back 16

Interaction between species in which one organism, called the parasite, preys on another organism, called the host, by living on or in the host

Front 17

constancy

Back 17

Ability of a living system, such as a population, to maintain a certain size

Front 18

stability

Back 18

Ability of a living system to withstand or recover from externally imposed changes or stresses

Front 19

mutualism

Back 19

Type of species interaction in which both participating species generally benefit

Front 20

parasite

Back 20

: Consumer organism that lives on or in and feeds on a living plant or animal, known as the host, over an extended period of time. The parasite draws nourishment from and gradually weakens its host; it may or may not kill the host

Front 21

predator- prey relationship

Back 21

Interaction between two organisms of different species in which one organism, called the predator, captures and feeds on parts or all of another organism, called the prey.

Front 22

nonnative species

Back 22

Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans

Front 23

resilince

Back 23

Ability of a living system to restore itself to original condition after being exposed to an outside disturbance that is not too drastic

Front 24

exploitation competition

Back 24

Situation in which two competing species have equal access to a specific resource but differ in how quickly or efficiently they exploit it

Front 25

competitive exclusion

Back 25

No two species can occupy exactly the same fundamental niche indefinitely in a habitat where there is not enough of a particular resource to meet the needs of both species

Front 26

commenlism

Back 26

An interaction between organisms of different species in which one type of organism benefits and the other type is neither helped nor harmed to any great degree

Front 27

late successional plant species

Back 27

Mostly trees that can tolerate shade and form a fairly stable complex forest community

Front 28

interspecific competition

Back 28

Members of two or more species trying to use the same limited resources in an ecosystem.

Front 29

resource partioning

Back 29

Process of dividing up resources in an ecosystem so that species with similar needs (overlapping ecological niches) use the same scarce resources at different times, in different ways, or in different places

Front 30

early successional planet species

Back 30

Plant species found in the early stages of succession that (1) grow close to the ground, (2) can establish large populations quickly under harsh conditions, and (3) have short lives

Front 31

host

Back 31

Plant or animal on which a parasite feeds

Front 32

indicator species

Back 32

Species that serve as early warnings that a community or ecosystem is being degraded

Front 33

primary succession

Back 33

Sequential development of communities in a bare area that has never been occupied by a community of organisms

Front 34

symbiosis

Back 34

Any intimate relationship or association between members of two or more species