Results 111 to 120 of about 19,419 (296)

Seasonality in CO2 and H2O flux at an Eastern Amazonian Rain Forest [PDF]

open access: yes, 2002
Previous studies of CO2 fluxes in Amazonia have suggested seasonal variation in net ecosystem exchange. We find little evidence of this seasonality at a new site in eastern Amazonia, despite the expectation that this site would be particularly sensitive ...
Palheta, P.   +10 more
core   +1 more source

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

open access: yesNordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes   +4 more
wiley   +1 more source

The relative roles of local climate adaptation and phylogeny in determining leaf-out timing of temperate tree species

open access: yesForest Ecosystems, 2017
Background Leaf out times of temperate forest trees are a prominent determinant of global carbon dynamics throughout the year. Abiotic cues of leaf emergence are well studied but investigation of the relative roles of shared evolutionary history ...
Elsa Desnoues   +3 more
doaj   +1 more source

Variation in performance of beech saplings of 7 European provenances under shade and full light conditions

open access: yes, 2001
The use of beech seedlings from South-East European and North-West (NW) provenances for underplanting in coniferous forests in North-West Europe was investigated by means of experimental shading.
Hees, A.F.M., van   +2 more
core  

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

open access: yesNordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa   +4 more
wiley   +1 more source

Spatial distribution of tree species governs the spatio-temporal interaction of leaf area index and soil moisture across a forested landscape.

open access: yesPLoS ONE, 2013
Quantifying coupled spatio-temporal dynamics of phenology and hydrology and understanding underlying processes is a fundamental challenge in ecohydrology.
Kusum J Naithani   +4 more
doaj   +1 more source

Taxonomic novelties in subgenus Euphorbia (Euphorbiaceae) from South India

open access: yesNordic Journal of Botany, EarlyView.
Extensive floristic explorations throughout southern India have uncovered some noteworthy taxonomic additions within the subgenus Euphorbia (Euphorbiaceae). Three distinct taxa of Euphorbia are described and illustrated herein as E. sankarensis, E. bahalita and E. tortilis var. mysorensis.
Sarojini Devi Naidu   +1 more
wiley   +1 more source

A Study of the Leaf Phenology and Thermonastic Leaf Movement of Daphniphyllum macropodum [PDF]

open access: yesJournal of the Faculty of Agriculture, Kyushu University, 2017
Park, Seok–Gon, Matsumoto, Masaru
openaire   +1 more source

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