نتایج جستجو برای: tropical evergreen forest
تعداد نتایج: 167876 فیلتر نتایج به سال:
The diversity of litter ant assemblages in evergreen, deciduous and Shola evergreen (Shola) forest vegetation types of the Wayanad region of the Western Ghats was assessed employing conventional and taxonomic diversity indices. Non-dependence on quantitative data and the ability to relate the phylogenetic structure of assemblages with ecological conditions of the habitat, and to ascertain prior...
BACKGROUND Understanding the factors that shape the distribution of tropical tree species at large scales is a central issue in ecology, conservation and forest management. The aims of this study were to (i) assess the importance of environmental factors relative to historical factors for tree species distributions in the semi-evergreen forests of the northern Congo basin; and to (ii) identify ...
The diversity of litter ant assemblages in evergreen, deciduous and Shola evergreen (Shola) forest vegetation types of the Wayanad region of the Western Ghats was assessed employing conventional and taxonomic diversity indices. Non-dependence on quantitative data and the ability to relate the phylogenetic structure of assemblages with ecological conditions of the habitat, and to ascertain prior...
Diurnal and seasonal patterns of leaf gas exchange and water relations were examined in tree species of contrasting leaf phenology growing in a seasonally dry tropical rain forest in north-eastern Australia. Two drought-deciduous species, Brachychiton australis (Schott and Endl.) A. Terracc. and Cochlospermum gillivraei Benth., and two evergreen species, Alphitonia excelsa (Fenzal) Benth. and A...
Results Differences in responses to water deficits between tropical and temperate species appear to reflect differences in climate regimes. In particular, species native to ever-wet rainfall regimes in New Guinea, where water deficits are generally likely to be short-lived, were effective at conserving water by reduced stomatal conductance. In contrast, high-latitude evergreen species on averag...
Dynamic global vegetation models are used to predict the response of vegetation to climate change. They are essential for planning ecosystem management, understanding carbon cycle–climate feedbacks, and evaluating the potential impacts of climate change on global ecosystems. JULES (the Joint UK Land Environment Simulator) represents terrestrial processes in the UK Hadley Centre family of models...
BACKGROUND AND AIMS Growth in trunk height in canopy openings is important for saplings. How saplings increase height growth in canopy openings may relate to crown architectural constraints. Responses of crown development to canopy openings in relation to trunk height growth were studied for saplings (0.2-2.5 m tall) of eight tropical submontane forest tree species in Indonesia. The results of ...
Litter decomposition is an ecosystem process that allows energy and nutrients transfer from dead plant matter into detrital food webs. Several studies revealed leaf litter rates differ across biomes, but the reasons for these differences are not yet clear. Here, we test role of several physical chemical characteristics as predictors whether life forms (evergreen vs. deciduous) in rates. Leaves ...
The milkweed, Calotropis gigantea (L.) W.T. Aiton (Gentianales: Asclepiadaceae) locally known as Akond, is an evergreen, perennial shrub, and is widely distributed in sub-tropical and tropical countries. It has been reported that latices of the milkweeds including C. gigantea contain cardiac glycosides that vary in amount and type between species, between various plant parts of the same species...
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