Results 21 to 30 of about 171,692 (302)

Pollen-based biome reconstructions for Latin America at 0, 6000 and 18 000 radiocarbon years ago [PDF]

open access: yesClimate of the Past, 2009
The biomisation method is used to reconstruct Latin American vegetation at 6000&plusmn;500 and 18 000&plusmn;1000 radiocarbon years before present (<sup>14</sup>C yr BP) from pollen data.
R. Marchant   +39 more
doaj  

Rain-induced changes in soil CO2 flux and microbial community composition in a tropical forest of China

open access: yesScientific Reports, 2017
Rain-induced soil CO2 pulse, a rapid excitation in soil CO2 flux after rain, is ubiquitously observed in terrestrial ecosystems, yet the underlying mechanisms in tropical forests are still not clear.
Qi Deng   +4 more
doaj   +1 more source

Horizontal stratification of the sand fly fauna (Diptera: Psychodidae) in a transitional vegetation between caatinga and tropical rain forest, state of Bahia, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2003
A study about the horizontal stratification of the sand fly fauna in two distinct ecosystems, caatinga area, endemic for visceral leishmaniasis, and the tropical rain forest area, endemic for cutaneous leishmaniasis, was performed in the state of Bahia ...
Artur Gomes Dias-Lima   +2 more
doaj   +1 more source

Altitude distribution pattern of species diversity in tropical natural forest in Diaoluo Mountain

open access: yesGuangxi Zhiwu, 2023
Altitude is the key factor affecting species diversity pattern. In order to explore the altitude distribution pattern of species diversity in tropical natural forest in Diaoluo Mountain, vegetation survey was conducted in six tropical natural forest ...
Chendi LI   +3 more
doaj   +1 more source

Rainfall but not selective logging affect changes in abundance of tropical forest butterfly in Sabah, Borneo [PDF]

open access: yes, 2003
We investigated the effects of rainfall on the distribution and abundance of the satyrine butterfly Ragadia makuta in selectively logged and unlogged forest on Borneo. In 1997-98, there was a severe El Nino-Southern Oscillation (ENSO) drought, and annual
Chey, V K   +4 more
core   +1 more source

Vegetation and pollen rain relationship from the tropical Atlantic rain forest in Southern Brazil

open access: yesBrazilian Archives of Biology and Technology, 2006
The relationship between the southern Brazilian tropical Atlantic lowland rain forest and modern pollen rain was studied by pollen traps. The study was carried out on a one hectare plot undisturbed rain forest of the reserve Volta Velha and two secondary
Hermann Behling, Raquel R. B. Negrelle
doaj   +1 more source

Edaphic Specialization in Tropical Trees: Physiological Correlates and Responses to Reciprocal Transplantation [PDF]

open access: yes, 2005
Recent research has documented the importance of edaphic factors in determining the habitat associations of tree species in many tropical rain forests, but the underlying mechanisms for edaphic associations are unclear.
Baltzer, Jennifer L.   +3 more
core   +2 more sources

Spatial variations of nitrogen trace gas emissions from tropical mountain forests in Nyungwe, Rwanda [Discussion paper] [PDF]

open access: yes, 2011
Globally, tropical forest soils represent the second largest source of N2O and NO. However, there is still considerable uncertainty on the spatial variability and soil properties controlling N trace gas emission. To investigate how soil properties affect
Boeckx, Pascal   +7 more
core   +5 more sources

CONSCIENTIOUS MANAGEMENT OF SOIL HUMUS AND WATER: A MAJOR CONDITION FOR PURPOSEFUL MECHANISATION OF FIELD CROP HUSBANDRY IN TROPICAL RAIN FOREST OF NIGERIA [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2016
Machinery and implements used in agricultural product/on work in media of lives - the soil, livestock and crops. Certain features of these media determine the possibility and extent of mechanization of works relating to them.
Paul O. SIMEON   +2 more
doaj  

Ecology of the forest elephant in Tai National Park, Ivory Coast

open access: yesPachyderm, 1984
Also published in Swara vol 7 no 5, 1984. Research on the ecology of the forest elephant is of recent development due to its habitat, the tropical rain forest. Methods used in Tai National Park were based on indirect observation.
Gunter Merz
doaj   +1 more source

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