Association (ecology)

Argument terminology used in logic

Association is a type of ecological community with a predictable species composition and consistent physiognomy which occurs in a particular habitat type.

- Association (ecology)

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Phytosociology

Study of groups of species of plant that are usually found together.

Argument terminology used in logic

The basic unit of syntaxonomy, the organisation and nomenclature of phytosociological relationships, is the "association", defined by its characteristic combination of plant taxa.

Community (ecology)

A bear with a salmon. Interspecific interactions such as predation are a key aspect of community ecology.
a) A trophic pyramid showing the different trophic levels in a community. b) A food web of the same community
A simple trophic cascade diagram. On the right shows when wolves are absent, showing an increase in elks and reduction in vegetation growth. The left one shows when wolves are present and controlling the elk population.
Table visualising size-symmetric competition, using fish as consumers and crabs as resources.
A generalised graph of a predator-prey population density cycle

In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage.

Frederic Clements

American plant ecologist and pioneer in the study of plant ecology and vegetation succession.

A tropical plant community on Diego Garcia

He observed that some groups of species, which he called "formations", were repeatedly associated together.

Henry A. Gleason

American ecologist, botanist, and taxonomist.

Henry Allan Gleason

In his early research, Gleason interpreted the vegetation of Illinois using Clementsian concepts like associations, climax states, pioneer species, and dominant species.

Chisos Mountains

The Chisos Mountains, also known as the Chisos, are a mountain range located in the Big Bend area of the Trans-Pecos region of Texas, United States.

View from the South Rim.
Geology of Chisos Basin
Map of Big Bend

Birds of the Chisos Mountains include 81 total known species that live within six different plant associations. The six plant associations along with the number of known species within them include: the Arroyo-Mesquite-Acacia Association (31 species), the Lechuguilla-Creosotebush-Cactus Association (13 species), the Sotol-Grass Association (32 species), the Deciduous Woodland Association (42 species), the Pinyon-Juniper-Oak Association (32 Species), and the Cypress-Pine-Oak Association (24 species).

Lake Engure Nature Park

Protected park in Latvia covering 197.62 km2, named for Lake Engure.

A Park in Victoria, Australia

Typical mire communities are represented by associations of rare specimens such as ' and '.

Polyscias racemosa

Species of flowering plant in the family Araliaceae.

Flowers
Inflorescence
Leaves
New Leaves

Associated plant species include papala kepau (Pisonia umbellifera), āwikiwiki (Canavalia galeata), ilima (Sida fallax), ōlulu (Brighamia insignis), alahee (Psydrax odorata), kōpiko (Psychotria spp.), olopua (Nestegis sandwicensis), ahakea (Bobea timonioides), hala pepe (Pleomele aurea), and ālaa (Pouteria sandwicensis).

Patera clarki nantahala

Subspecies of Patera clarki, a land snail in the family Polygyridae.

Patera clarki nantahala
Map of North Carolina with Swain County marked in red

The rich, moist calcareous soils, and the mature forest community are likely to account for the unusually wide variety of snails which inhabit the area; Patera clarki nantahala being found in association with 29 other snail species.

Atriplex lentiformis

Species of saltbush.

Atriplex lentiformis grows in the Mesquite Bosque vegetative association with the native Arrowweed - Pluchea sericea, Velvet mesquite - Prosopis velutina, and others in the Lower Colorado River Valley and Gila River valleys of southwestern Arizona, southeastern California, and northwestern Mexico.

Mesquite Bosque

Mesquite Bosque south of Tucson, Arizona.
Looking North Into The Mesquite Bosque at the DNR
Looking west into the Mesquite Bosque at the DNR
1920s Cabin Built of Railroad Ties in The Mesquite Bosque at the DNR
Northwest Looking View of the DNR Mesquite Bosque
Bosque Interface With Sage
Westward look of the Mesquite Bosque at the DNR
Branches of the Honey Mesquite in the Mesquite Bosque
Honey Mesquite Flowers in the DBR's Mesquite Bosque

Mesquite Bosque is a vegetative association within the Southwestern United States, under the Kuchler scheme of plant association categories.