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Ruderal Species
A ruderal species is a plant species that is first to colonize disturbed lands. The disturbance may be natural for example, wildfires or avalanchesor the consequences of human activities, such as construction ( of roads, of buildings, mining, etc.) or agriculture (abandoned fields, irrigation, etc.). The term '' ruderal'' originates from the Latin word '' rudus'', meaning " rubble". Ruderal species typically dominate the disturbed area for a few years, gradually losing the competition to other native species. However, in extreme disturbance circumstances, such as when the natural topsoil is covered with a foreign substance, a single-species ruderal community may become permanently established. In addition, some ruderal invasive species may have such a competitive advantage over the native species that they, too, may permanently prevent a disturbed area from returning to its original state despite natural topsoil. Features Features contributing to a species' success as rudera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruderal Community Dittrichia Viscosa On Gravel01
A ruderal species is a plant species that is first to colonize disturbed lands. The disturbance may be natural for example, wildfires or avalanchesor the consequences of human activities, such as construction ( of roads, of buildings, mining, etc.) or agriculture (abandoned fields, irrigation, etc.). The term ''ruderal'' originates from the Latin word ''rudus'', meaning "rubble". Ruderal species typically dominate the disturbed area for a few years, gradually losing the competition to other native species. However, in extreme disturbance circumstances, such as when the natural topsoil is covered with a foreign substance, a single-species ruderal community may become permanently established. In addition, some ruderal invasive species may have such a competitive advantage over the native species that they, too, may permanently prevent a disturbed area from returning to its original state despite natural topsoil. Features Features contributing to a species' success as ruderal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycorrhizae
A mycorrhiza (from Greek μύκης ', "fungus", and ῥίζα ', "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its root system. Mycorrhizae play important roles in plant nutrition, soil biology, and soil chemistry. In a mycorrhizal association, the fungus colonizes the host plant's root tissues, either intracellularly as in arbuscular mycorrhizal fungi (AMF or AM), or extracellularly as in ectomycorrhizal fungi. The association is sometimes mutualistic. In particular species or in particular circumstances, mycorrhizae may have a parasitic association with host plants. Definition A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicotiana Glauca
''Nicotiana glauca'' is a species of flowering plant in the tobacco genus Nicotiana of the nightshade family Solanaceae. It is known by the common name tree tobacco. Its leaves are attached to the stalk by Petiole (botany), petioles (many other ''Nicotiana'' species have sessile leaves), and its leaves and stems are neither wikt:pubescent, pubescent nor sticky like ''Nicotiana tabacum''. It resembles ''Cestrum parqui'' but differs in the form of leaves and fusion of the outer floral parts. It grows to heights of more than two meters. Tree tobacco is native to South America but it is now widespread as an introduced species on other continents. It is a common roadside weed in the southwestern United States, and an Invasive species, invasive plant species in California California native plants, native plant habitats. Description ''Nicotiana glauca'' is a small tree or shrub with many branches that normally grows to over 2 m, but can reach as high as 7 m. Its leaves are thick and rub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dittrichia Viscosa
''Dittrichia viscosa'', also known as false yellowhead, woody fleabane, sticky fleabane and yellow fleabane, is a flowering plant in the daisy family. ''Dittrichia viscosa'' is a highly branching perennial common throughout the Mediterranean Basin. It has long, narrow leaves that are pointed at both ends and have teeth along the edges and glandular hairs on the surfaces. One plant can produce many yellow flower heads each with as many as 16 ray florets and 44 disc florets. Originally, the species was found mainly in dry riverbeds and abandoned fields up to a 1500 m (5000 feet) elevation. Nowadays it is quite common in roadsides and ruderal habitats, even in urban areas. It is considered an invasive species in Australia. The false yellowhead is a tough plant, very resistant to adverse conditions and degraded environments. It is important as food for the caterpillars of certain butterflies and moths, like '' Iolana iolas''. The galls of the plants also are habitat for ''Myopites st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conyza Bonariensis
''Erigeron bonariensis'' is a species of ''Erigeron'', found throughout the tropics and subtropics as a pioneer plant; its precise origin is unknown, but most likely it stems from Central America or South America. It has become naturalized in many other regions, including North America, Europe and Australia. Names Common names include flax-leaf fleabane, wavy-leaf fleabane, Argentine fleabane, hairy horseweed, asthma weed and hairy fleabane. Description ''Erigeron bonariensis'' grows up to in height and its leaves are covered with stiff hairs, including long hairs near the apex of the bracts. Its flower heads have white ray florets and yellow disc florets. It can easily be confused with ''Erigeron canadensis'', which grows taller, and '' E. sumatrensis''. It flowers in August and continues fruiting until the first frosts. It is instantly recognisable by its blue-green foliage, very narrow, undulate stem-leaves, and purple-tipped involucral bracts. It reproduces only by see ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannabaceae
Cannabaceae is a small family (biology), family of flowering plants, known as the hemp family. As now Circumscription (taxonomy), circumscribed, the family includes about 170 species grouped in about 11 genera, including ''Cannabis'' (hemp), ''Humulus'' (hops) and ''Celtis'' (hackberries). ''Celtis'' is by far the largest genus, containing about 100 species.Stevens, P.F. (2001 onwards"Cannabaceae" ''Angiosperm Phylogeny Website'', retrieved 2014-02-25 Cannabaceae is a member of the Rosales. Members of the family are erect or climbing plants with petalless flowers and dry, one-seeded fruits. Hemp (''Cannabis'') and hop (''Humulus'') are the most economically important species. Other than a shared evolutionary origin, members of the family have few common characteristics; some are trees (e.g. ''Celtis''), others are herbaceous plants (e.g. ''Cannabis''). Description Members of this family can be trees (e.g. ''Celtis''), erect herbs (e.g. ''Cannabis''), or twining herbs (e.g. ''Hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannabis Ruderalis
''Cannabis ruderalis'' is a variety, subspecies, or species of ''Cannabis'' native to Central and Eastern Europe and Russia. It contains a relatively low quantity of psychoactive compound tetrahydrocannabinol (THC) Some scholars accept ''C. ruderalis'' as its own species due to its unique traits and phenotypes which distinguish it from '' C. indica'' and '' C. sativa''; others debate whether ''ruderalis'' is a subdivision under ''C. sativa''. The consensus among plant taxonomical databases, as of 2022, is to consider it ''Cannabis sativa'' var. ''ruderalis''. Description ''Cannabis ruderalis'' is smaller than other species of ''Cannabis'', rarely growing over in height. According to one source, the plants have "thin, slightly fibrous stems" with little branching. The foliage is typically open with large leaves. ''C. ruderalis'' reaches maturity much quicker than other species of ''Cannabis,'' typically 5–7 weeks after being planted from seed. Unli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supertramp (ecology)
In ecology, a supertramp species is any type of animal which follows the "supertramp" strategy of high dispersion among many different habitats, towards none of which it is particularly specialized. Supertramp species are typically the first to arrive in newly available habitats, such as volcanic islands and freshly deforested land; they can have profoundly negative effects on more highly specialized flora and fauna, both directly through predation and indirectly through competition for resources. The name was coined by Jared Diamond in 1974, as an allusion to both the itinerant lifestyle of the tramp, and the then-popular band Supertramp. Although Diamond originally applied the term only to birds, the term has since been applied to insects and reptiles as well, among others; ''any'' species which can migrate can be a supertramp. In an evolutionary context, the supertramp may represent the first stage of the taxon cycle.Pepke, M. L., Irestedt, M., Fjeldså, J., Rahbek, C., & Jøns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Restoration Ecology
Restoration ecology is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human interruption and action. Effective restoration requires an explicit goal or policy, preferably an unambiguous one that is articulated, accepted, and codified. Restoration goals reflect societal choices from among competing policy priorities, but extracting such goals is typically contentious and politically challenging. Natural ecosystems provide ecosystem services in the form of resources such as food, fuel, and timber; the purification of air and water; the detoxification and decomposition of wastes; the regulation of climate; the regeneration of soil fertility; and the pollination of crops. These ecosystem processes have been estimated to be worth trillions of dollars annually. There is consensus in the scientific community that the current envi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneer Species
Pioneer species are hardy species that are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by wildfire. Pioneer flora Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants.LICHEN BIOLOGY AND THE ENVIRONMENT, LICHENS OF NORTH AMERICA, Sylvia and Stephen Sharnoff/ref> Since some uninhabited land may have thin, poor quality soils with few nutrients, pioneer species are often hardy plants with adaptations such as long roots, root nodes containing Diazotroph, nitrogen-fixing bacteria, and leaves that employ transpiration. Note that they are often photosynthetic plants, as no other source of energy (such as other species) except light energy is often available in the early stages of succession, thus making it less likely for a pioneer species to be non-photosynthetic. The plants that are often pioneer species also tend to be wind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemeroby
Hemeroby, or hemerochora is a term used in botanical and ecological sciences. It is often associated to naturalness as the complementary term, with a high degree of hemeroby equating to a high human influence on a natural environment. However, the two terms are not inversely related. Etymology The term is derived from the Greek ''hémeros'' and ''bíos''. The word hemero-, hemer- means tame, cultivated. Bios is life. Hemeroby literally means "tamed life". Quantification Various scales for quantifying hemeroby have been devised. See also *Human impact on the environment *Rewilding *Ruderal species A ruderal species is a plant species that is first to colonize disturbed lands. The disturbance may be natural for example, wildfires or avalanchesor the consequences of human activities, such as construction ( of roads, of buildings, mining, et ... References Ecology terminology {{botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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