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21-588: The Pipeline Coastal Park is an area of coastal vegetation in Amanzimtoti , Durban , South Africa . It is an elongated strip of land bordering the Indian Ocean . Plants found here include the Mimusops afra , Strelitzia nicolai and Brachylaena discolor . 30°01′59″S 30°54′26″E  /  30.03306°S 30.90722°E  / -30.03306; 30.90722 This KwaZulu-Natal location article

42-425: A community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms (vegetation and flora) were used indiscriminately, and still are in some contexts. Augustin de Candolle (1820) also made a similar distinction but he used the terms "station" ( habitat type) and "habitation" ( botanical region ). Later, the concept of vegetation would influence

63-527: A regular and recurring part of the long-term system dynamic. Fire and wind disturbances are prevalent throughout many vegetation types worldwide. Fire is particularly potent because of its ability to destroy not only living plants but also the seeds, spores, and living meristems representing the potential next generation, and because of fire's impact on fauna populations, soil characteristics and other ecosystem elements and processes (for further discussion of this topic see fire ecology ). Temporal change at

84-507: A slower pace is ubiquitous; it comprises the ecological succession field. Succession is the relatively gradual structure and taxonomic composition change that arises as the vegetation modifies various environmental variables over time, including light, water, and nutrient levels. These modifications change the suite of species most adapted to grow, survive, and reproduce in an area, causing floristic changes. These floristic changes contribute to structural changes inherent in plant growth even in

105-638: A species develops a disease or there is a drastic change of habitat or local climate, or it is removed to a different region, then the normal habits may change. Such changes may be either pathological , or adaptive . In botany , habit is the general appearance, growth form, or architecture . For example: Plants may be woody or herbaceous . The main types of woody plants are trees , shrubs and lianas . Climbing plants ( vines ) can be woody (lianas) or herbaceous (nonwoody vines). Plants can also be categorized in terms of their habit as subshrubs (dwarf shrub, bush), cushion plants and succulents . There

126-843: A specific behavior pattern, either adopted, learned , pathological, innate , or directly related to physiology . For example: Mode of life (or lifestyle , modus vivendi ) is a concept related to habit , and it is sometimes referred to as the habit of an animal. It may refer to the locomotor capabilities, as in "( motile habit ", sessile , errant, sedentary), feeding behaviour and mechanisms, nutrition mode (free-living, parasitic , holozoic , saprotrophic , trophic type ), type of habitat ( terrestrial , arboreal , aquatic , marine , freshwater, seawater, benthic , pelagic , nektonic , planktonic , etc.), period of activity ( diurnal , nocturnal ), types of ecological interaction , etc. The habits of plants and animals often change responding to changes in their environment . For example: if

147-523: Is a stub . You can help Misplaced Pages by expanding it . Vegetation The vegetation type is defined by characteristic dominant species, or a common aspect of the assemblage, such as an elevation range or environmental commonality. The contemporary use of vegetation approximates that of ecologist Frederic Clements' term earth cover , an expression still used by the Bureau of Land Management . The distinction between vegetation (the general appearance of

168-477: Is some overlap between the classifications of plants according to their habit and their life-form . Other terms in biology refer similarly to various taxa ; for example: Since the distinction between the concepts – mode of behavior and morphological form – are significant in zoology, the term habitus (from which the word habit derives) is used to describe form as distinct from behaviour ( habit ). The term habitus also occurs in botanical texts, but there it

189-692: The Federal Geographic Data Committee (FGDC), and originally developed by UNESCO and The Nature Conservancy ), the classification is hierarchical and incorporates the non-floristic criteria into the upper (most general) five levels and limited floristic criteria only into the lower (most specific) two levels. In Europe, classification often relies much more heavily, sometimes entirely, on floristic (species) composition alone, without explicit reference to climate, phenology or growth forms. It often emphasizes indicator or diagnostic species which may distinguish one classification from another. In

210-666: The phytosociological approach in the study of vegetation relies upon a fundamental unit, the plant association , which is defined upon flora. An influential, clear and simple classification scheme for types of vegetation was produced by Wagner & von Sydow (1888). Other important works with a physiognomic approach includes Grisebach (1872), Warming (1895, 1909), Schimper (1898), Tansley and Chipp (1926), Rübel (1930), Burtt Davy (1938), Beard (1944, 1955), André Aubréville (1956, 1957), Trochain (1955, 1957), Küchler (1967), Ellenberg and Mueller-Dombois (1967) (see vegetation classification ). There are many approaches for

231-470: The FGDC standard, the hierarchy levels, from most general to most specific, are: system, class, subclass, group, formation, alliance, and association . The lowest level, or association, is thus the most precisely defined, and incorporates the names of the dominant one to three (usually two) species of a type. An example of a vegetation type defined at the level of class might be " Forest, canopy cover > 60% "; at

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252-428: The absence of species changes (especially where plants have a large maximum size, i.e., trees), causing slow and broadly predictable changes in the vegetation. Succession can be interrupted at any time by disturbance, setting the system back to a previous state or off on another trajectory altogether. Because of this, successional processes may or may not lead to some static, final state . Moreover, accurately predicting

273-460: The characteristics of such a state, even if it does arise, is not always possible. In short, vegetative communities are subject to many variables that set limits on future conditions' predictability. Generally, the larger an area under consideration, the more likely the vegetation will be heterogeneous. Two main factors are at work. First, the temporal dynamics of disturbance and succession are increasingly unlikely to be in synchrony across any area as

294-436: The classification of vegetation (physiognomy, flora, ecology, etc.). Much of the work on vegetation classification comes from European and North American ecologists, and they have fundamentally different approaches. In North America, vegetation types are based on a combination of the following criteria: climate pattern, plant habit , phenology and/or growth form, and dominant species. In the current US standard (adopted by

315-459: The level of a formation as " Winter-rain, broad-leaved, evergreen, sclerophyllous, closed-canopy forest "; at the level of alliance as " Arbutus menziesii forest"; and at the level of association as " Arbutus menziesii-Lithocarpus dense flora forest", referring to Pacific madrone-tanoak forests which occur in California and Oregon, US. In practice, the levels of the alliance and/or an association are

336-506: The most often used, particularly in vegetation mapping, just as the Latin binomial is most often used in discussing particular species in taxonomy and in general communication. Like all biological systems, plant communities are temporally and spatially dynamic; they change at all possible scales. Dynamism in vegetation is defined primarily as changes in species composition and structure. Temporally, many processes or events can cause change, but for

357-636: The sake of simplicity, they can be categorized roughly as abrupt or gradual. Abrupt changes are generally referred to as disturbances ; these include things like wildfires , high winds , landslides , floods , avalanches and the like. Their causes are usually external ( exogenous ) to the community—they are natural processes occurring (mostly) independently of the natural processes of the community (such as germination, growth, death, etc.). Such events can change vegetation structure and composition very quickly and for long periods, and they can do so over large areas. Very few ecosystems are without some disturbance as

378-405: The size of that area increases. Different areas will be at various developmental stages due to other local histories, particularly their times since the last significant disturbance. This fact interacts with inherent environmental variability (e.g., in soils, climate, topography, etc.), also a function of area. Environmental variability constrains the suite of species that can occupy a given area, and

399-405: The study of vegetation is common among biogeographers working on vegetation on a world scale, or when there is a lack of taxonomic knowledge of someplace (e.g., in the tropics, where biodiversity is commonly high). The concept of " vegetation type " is more ambiguous. The definition of a specific vegetation type may include not only physiognomy but also floristic and habitat aspects. Furthermore,

420-547: The two factors interact to create a mosaic of vegetation conditions across the landscape. Only in agricultural or horticultural systems does vegetation ever approach perfect uniformity. There is always heterogeneity in natural systems, although its scale and intensity will vary widely. Plant habit Habit , equivalent to habitus in some applications in biology , refers variously to aspects of behaviour or structure, as follows: In zoology , habit (not to be confused with habitus as described below) usually refers to

441-490: The usage of the term biome with the inclusion of the animal element. Other concepts similar to vegetation are " physiognomy of vegetation" ( Humboldt , 1805, 1807) and "formation" ( Grisebach , 1838, derived from " Vegetationsform ", Martius , 1824). Departing from Linnean taxonomy , Humboldt established a new science, dividing plant geography between taxonomists who studied plants as taxa and geographers who studied plants as vegetation. The physiognomic approach in

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