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Undergrowth

About: Undergrowth is a research topic. Over the lifetime, 795 publications have been published within this topic receiving 11911 citations. The topic is also known as: understorey & underbrush.


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Journal ArticleDOI
TL;DR: The questions thus arise: does the subtropical member of the genus differ greatly in its ecology and behavior although it differs little morphologically; and what factors restrict the species to the Western Andes?
Abstract: The Crested Ant-Tanager (Habia cristata) lives in a narrow subtropical band in the Western Andes of Colombia (fig. 1), not in the tropical lowlands as do the four other species of the genus. The lowland species resemble each other in ecology and behavior (Willis, 1960a, 1960b, 1960c, 1961, MS). Where adverse factors such as poor soil, low rainfall, periodic floods, and previous clearing of the forest for agricultural uses hold development of the tropical forest at an immature stage, these AntTanagers inhabit the leafy undergrowth that is shaded out in more mature forests. Red-crowned Ant-Tanagers (Habia rubica) and Black-cheeked Ant-Tanagers (Habia atrimaxillaris) forage higher in the undergrowth and consequently often use more mature forests than do Red-throated Ant-Tanagers (Habia fuscicauda) and Sooty Ant-Tanagers (Habia gutturalis). But none of the lowland species is successful in the open undergrowth of fully mature forest. The questions thus arise: does the subtropical member of the genus differ greatly in its ecology and behavior although it differs little morphologically; and what factors restrict the species to the Western Andes?

7 citations

Journal Article
TL;DR: In this article, the authors studied species composition, species diversity and potency of undergrowth vegetation to be used as cover crop in ex-limestone mining land and ex-silica mining land.
Abstract: Open pit mining causes damage on ground cover vegetation, increase of erosion rate, decrease of land productivity, and decrease of soil fertility. Revegetation activity needs long period of time, so there is a need for planting of cover crops . The objective of cover crop planting is protecting soil from erosion. The objectives of this research were learning species composition, species diversity and potency of undergrowth vegetation to be utilized as cover crop . Composition of undergrowth vegetation in ex-limestone mining land was higher as compared with that in ex-silica mining land. Species diversity (H’) in each research location was categorized as moderate. Species evenness (E) in the two research locations were categorized as high. Species richness (R 1 ) in the two research locations were categorized as high. Dominance index (C) in the two research locations were categorized as low. Soil properties in each location were categorized as not so fertile. Nutrient elements occurring in the two research locations were categorized as low.

6 citations

Journal ArticleDOI
TL;DR: It is shown that in determining biological age of the plant, researchers should consider the xylorhizome formation, one of the structural–functional adaptations for the ontogeny protection, allowing fir undergrowth a long time exist in pessimal conditions under the forest canopy.
Abstract: Fir undergrowth under forest canopy forms the xylorhizome, which allows a long time to exist in pessimal conditions and to compete with nemoral species. This work is devoted to studying features of Siberian fir (Abies sibirica Ledeb.) in the first stages of ontogeny in different forest conditions. We have shown that in determining biological (exact) age of the plant, researchers should consider the xylorhizome formation. While studying the growth dynamics of the shoot, we identified three periods of accelerated growth, which correspond to increased competition from different layers of grassy vegetation. The change in fir growth rates was associated with the growth of the lateral and pseudo-whorl shoots, leading to the increased assimilating surface of the needles. These regularities of growth and development of fir in the first stages of ontogeny reflect specific adaptations of fir that allow this species to compete with understory nemoral species. The xylorhizome formation is one of the structural–functional adaptations for the ontogeny protection, allowing to fir undergrowth a long time exist in pessimal conditions under the forest canopy.

6 citations

Journal Article
TL;DR: In this article, the physicochemical properties of soils belonging to great group of Haplustali/Hapiustoli and developed from Gondwana land stone in similar physiographic and environmental conditions were studied under three forest covers Viz., miscellaneous cover, teak plantation and Eucalyptus cover in Kotma and Ghunghuti ranges of South Shahdol and North Shahdoli Divisionl of M.P.
Abstract: Physico-chemical properties of soils belonging to great group of Haplustali/Hapiustoli and developed from Gondwana land stone in similar physiographic and environmental conditions were studied under three forest covers Viz., miscellaneous cover, teak plantation and Eucalyptus cover in Kotma and Ghunghuti ranges of South Shahdol and North Shahdol Divisionl of M.P. respectively. Weathering processes seem to be quite active in soils under followed by Eucalyptus cover. Ratios of clay to non clay fractionl, thickness of 'A' horizon, per cent organic matter, cation exchange capacity, exchangeable Ca and Mg were more under teak cover than that of Eucalyptus . Soil pH lowered down more under Eucalyptus plantation than in teak plantation. Soluble salts were more under Eucalytus cover. Performance of Eucalyptus was better on Ghunghuti range where as teak was better on Kotma rangue Eucalyptus supports undergrowth of different tree species.

6 citations

Journal ArticleDOI
06 Oct 2011-Castanea
TL;DR: Native old-field pineland with hardwood undergrowth was replaced 42 years later by alien hardwood forest dominated by invasive species at Goodwood forest in Tallahassee, Florida.
Abstract: Native old-field pineland with hardwood undergrowth was replaced 42 years later by alien hardwood forest dominated by invasive species at Goodwood forest in Tallahassee, Florida. Cinnamomum camphora dominated the overstory and Ardisia crenata the undergrowth. Succession theory would have anticipated development to native southern mixed hardwood forest or a subset called magnolia-beech forest. The initial native old-field forest community, prior to alien colonization, was characterized mostly by Pinus taeda, Quercus nigra, Liquidambar styraciflua and other lowland trees that were not likely to persist indefinitely on uplands. These trees colonized abandoned fields on account of a dearth of seed sources for oak-hickory forest trees which occupied these well drained uplands in the 18th century. Oak-hickory forest had been removed in the 19th century to allow the cultivation of cotton, and there was no evidence that it would recover at Goodwood forest.

6 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202337
202293
202133
202030
201934
201836