Terms : Hide Images
| 770672837 | Biological Community | is an assemblage of populations of various species living close enough for potential interaction | |
| 770672929 | interspecific interactions | relationships between species | |
| 770672940 | competition interaction | The interaction can be detrimental to each species | |
| 770673041 | Predation, Herbivory, Parasitism, Disease Interaction | The interaction is beneficial to one species and detrimental to each other | |
| 770673055 | Mutualism Interaction | The interaction is beneficial to each species | |
| 770673111 | Communalism Interaction | One species benefits from the interaction, and the other organism is unaffected by it | |
| 770673131 | Interspecific competition | species compete for a limited resource | |
| 770673149 | competitive exclusion principle | two species competing for the same limiting resources cannot coexist | |
| 770673200 | Ecological niche | the total of a species' use of biotic and abiotic resources | |
| 770673264 | Resource partitioning | is differentiation of ecological niches, enabling similar species to coexist in a community | |
| 770673281 | Character displacement | characteristics are more divergent in sympatric populations of two species than in allopatric populations of the same two species | |
| 770673312 | Predation | An interaction where the predator, kills and eats the prey end A. Feeding adaptions of predators include claws, teeth, fangs, stingers, and poison | |
| 770673347 | Herbivory | Herbivory refers to an interaction in which an herbivore eats parts of a plant or alga. It has led to evolution of plant mechanical and chemical defenses and adaptations by herbivores | |
| 770673362 | Parasitism | In parasitism, the parasite derives nourishment from its host, which is harmed in the process | |
| 770673385 | Disease | Effects of disease on populations and communities are similar to those of parasites. Pathogens, disease-causing agents, are typically bacteria, viruses, or protists | |
| 770673409 | Mutualism | Mutualistic symbiosis, or mutualism, is an interspecific interaction that benefits both species | |
| 770673493 | commensalism | In commensalism, one species benefits and the other is apparently unaffected | |
| 770673526 | Coevolution | is reciprocal evolutionary adaptations of two interacting species | |
| 770673562 | Species diversity of a community | is the variety of organisms that make up the community | |
| 770673582 | species richness | the total number of different species in the community | |
| 770673639 | relative abundance | the proportion each species represents of the total individuals in the community | |
| 770673656 | Even Species Abundance | is considered more diverse than one in which one or two species are abundant and the remainder are rare | |
| 770673699 | Evapotranspiration | is evaporation of water from soil plus transpiration of water from plants | |
| 770673714 | species-area curve | all other factors being equal, a larger geographic area has more species | |
| 770673736 | Trophic structure | is the feeding relationships between organisms in a community | |
| 770673759 | A food web | is a branching food chain with complex trophic interactions | |
| 770673778 | Food Chain Length: The energetic hypothesis | Length is limited by inefficient energy transfer (more on this later) | |
| 770673793 | Food Chain Length: The dynamic stability hypothesis | Long food chains are less stable than short ones | |
| 770673817 | Dominant species | are those that are most abundant or have the highest biomass | |
| 770673867 | Keystone species | are not necessarily abundant in a community. They exert strong control on a community by their ecological roles, or niches | |
| 770673886 | Ecosystem "Engineers" (Foundation Species) | exert influence by causing physical changes in the environment that affect community structure | |
| 770673913 | The top-down model | proposes that control comes from the trophic level above | |
| 770674009 | Bottom up model | control comes from producers | |
| 770674043 | nonequilibrium model- | communities constantly changing after being buffeted by disturbances | |
| 770674059 | Intermediate disturbance hypothesis | moderate levels of disturbance can foster higher diversity than low levels of disturbance | |
| 770674111 | Ecological succession | is the sequence of community and ecosystem changes after a disturbance | |
| 770674134 | Primary succession | occurs where no soil exists when succession begins | |
| 770674154 | Secondary succession | begins in an area where soil remains after a disturbance | |
| 770674224 | An ecosystem | consists of all the organisms living in a community, as well as the abiotic factors with which they interact | |
| 770674373 | Energy flows | through an ecosystem, entering as light and exiting as heat | |
| 770674390 | Nutrients cycle | within an ecosystem | |
| 770674451 | Primary production | the amount of light energy converted to chemical energy by autotrophs during a given time period |
