mod 7 Flashcards
(22 cards)
interconnected set of elements that is coherently organized to achieve a certain function/purpose
system
Assemblage of populations that occupy a given area, interacting either directly/indirectly
community
- there is diversity at every genetic level
- some form of integration (how they are interconnected)
Ecosphere
- unit including all the organisms interacting with each other (biotic community) in a given area interacting with the physical environment
- first unit in the ecological hierarchy that is complete
ecosystem
3 subcategory of species that make up the ecosystem
Hypothetical food web, keystone species, ecosystem engineers
influence interactions among species
keystone species
modify the environment by modifying materials from one form to another
allogenic engineers
modify the environment by modifying themselves
autogenic engineers
heterogeneous are composed of several ecosystems
landscape
landscape structure and processes
landscape ecology
- the primary cover type in the landscape
- greater control over the flora and fauna
landscape matrix
homogenous area that differs from the surrounding matrix
landscape patch
a strip of environment connecting 2 or more landscape patches of similar habitat
landscape corridor
differs from other analytical approaches in that it is based upon a conceptual model in which entities exist in a hierarchy of interrelated organizational levels
complexity theory
distribution defines the spatial extent of a population/system (e.g. vegetation patterns and space distribution)
spatial
the time series of different variables describing the dynamics of a system (e.g. changes in the population, effects of changes in climate and weather, extinction rate, invasion rate, succession, predator-prey cycles)
temporal
relationships within the ecosystem (food web).
structural
are nodes representing individual organisms situated in a habitat patch; lines are edges representing the relations between two nodes.
black dots
number of elements in different levels to the hierarchy within our system
numerosity
interactions and feedback loops over time
non-linearity
networks
connectivity
enables self-organization and the process of evolution that shapes complex systems on macro scale (ecological memory)
autonomy and adaptation
