Results 61 to 70 of about 3,632 (195)

Bisnorneolignano de la madera de ocotea simulans [PDF]

open access: yes, 1996
Del extracto etanólico de la madera de Ocotea simulans además de eugenol y P-sitosterol, un nuevo compuesto rel-(7S,8S)-4-hidrox¡-7'-oxo- 8.3',7,0.4'-8',9'-bisnorneolignano fue aislado.
Puentes de Díaz, A. M.
core  

Identification of Vegetation Communities Using Segmentation of Aerial Images

open access: yesApplied Vegetation Science, Volume 29, Issue 2, April/June 2026.
This work develops a scalable, segmentation‐based framework for assisting the generation of vegetation maps from aerial imagery. Several state‐of‐the‐art deep learning models are assessed to determine their suitability for identifying vegetation communities.
José Salas‐Cáceres   +4 more
wiley   +1 more source

Ocotea foveolata Kosterm.

open access: yes, 2013
Published as part of Werff, Henk Van Der, 2013, A revision of the genus Ocotea Aubl. (Lauraceae) in Madagascar and the Comoro Islands, pp. 235-279 in Adansonia (3) (3) 35 (2) on pages 250-251, DOI: 10.5252/a2013n2a5, http://zenodo.org/record ...
openaire   +2 more sources

A note on Nectandra (Lauraceae), with the description of a new species [PDF]

open access: yesActa Amazonica, 1981
The author describes a new species of Lauraceae from Amazonia, Nectandra spumea Kubitzki sp. n., and gives critical comments on the possible distinctions among the genera Ocotea, Nectandra and Pleurothyrium, especially between the first two.
Klaus Kubitzki
doaj   +1 more source

Lightning‐caused disturbance frequency and severity varies with topography in an Afromontane forest

open access: yesJournal of Ecology, Volume 114, Issue 3, March 2026.
The results indicate that lightning disturbance severity differs within and among sites, potentially mediated by differences in lightning tolerance among tree species, and provide preliminary support for the hypothesis that disturbance severity declines with disturbance frequency. Abstract Lightning is an important agent of tropical tree mortality, but
Evan M. Gora   +11 more
wiley   +1 more source

Ocotea involuta Kosterm.

open access: yes, 2013
17. Ocotea involuta Kosterm. (Fig. 5) Communication (Pengumuman) of the Forest Research Institute, Indonesia 60: 16 (1957). TYPUS.— Madagascar. Ambatolampy. 12.XII.1949, fls, Service Forestier 1051 (holo-, P [P00541627]!; iso-, TAN, TEF). SELECTED SPECIMENS SEEN. — Mahajanga. Mangindrano, petit plateau dans la forêt dense humide de montagne. Callmander
openaire   +2 more sources

Bright and Long: Day Length Modulates the Phenology of Two Myrtaceae Species in Upper Montane Mixed Ombrophilous Forest

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT The Upper Montane Mixed Ombrophilous Forest is a humid montane ecosystem characterised by cold winters and a rich Myrtaceae flora. We investigated the vegetative and reproductive phenology of Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D.
Bruno Jan Schramm Corrêa   +5 more
wiley   +1 more source

SOMATIC EMBRYOGENESIS AND MORPHOANATOMY OF Ocotea porosa SOMATIC EMBRYOS

open access: yesCiência Florestal, 2013
http://dx.doi.org/10.5902/1980509812343Ocotea porosa seeds have strong tegument dormancy, recalcitrant behavior, low and irregular germinationand that makes its natural propagation difficult.
Luciana Luiza Pelegrini   +3 more
doaj   +3 more sources

Small understory trees increase growth following sustained drought in the Amazon

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2787-2799, March 2026.
Summary Droughts pose a major threat to the Amazon rainforest, yet the mechanisms enabling trees to maintain growth under prolonged drought remain poorly understood, particularly in the understory layer. We leveraged a 22‐yr Throughfall Exclusion (TFE) in a 1‐ha plot in eastern Amazonia, paired with a Control plot, to test whether small understory ...
Mateus C. Silva   +16 more
wiley   +1 more source

Ocotea catharinensis Mez

open access: yes, 2018
Published as part of Bernardi, Luciano, 2018, Novedades taxonómicas en Nectandra Rottb. y Ocotea Aubl. (Lauraceae) de la Flora del Paraguay, pp.
openaire   +2 more sources

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