Results 61 to 70 of about 18,364 (291)

Caracterización estructural de dos oligosacáridos y del núcleo del polisacárido de la goma de Cedrela odorata [PDF]

, 2008
Se caracterizaron dos oligosacáridos y el núcleo del polisacáridode la goma de Cedrela odorata. Las gomas degradadas A y B, se prepararon sucesivamente, a partir de la goma original, mediante hidrólisis ácida parcial y degradación de Smith.
Bozo de González, María Isabel, Bravo, Adriana, Herrera, Julio, Igartuburu, José, León de Pinto, Gladys, Martínez Carrizoa, Maritza, Sanabria, Lilian   +6 more
core  

Consequências genéticas da regeneração natural de espécies arbóreas em área antrópica, AC, Brasil. [PDF]

, 2019
O cedro (Cedrela odorata L.) e o ipê-amarelo (Tabebuia serratifolia Nichols.) são espécies arbóreas tropicais economicamente valiosas e que têm sido ameaçadas pela exploração madeireira predatória e pela fragmentação florestal. Ambas apresentam dispersão
MARTINS, K., MORENO, M. A., RIBAS, L. A., WADT, P. G. S.   +3 more
core   +1 more source

Biomass production of tropical trees across space and time: The shifting roles of diameter growth and wood density

Journal of Ecology, Volume 113, Issue 11, Page 3141-3158, November 2025.
Diameter growth is an important and good indicator of forest carbon production. However, size‐related changes in wood density, which are usually neglected, are critical for accurate short‐ and long‐term carbon assessments, especially in tropical humid sites.
Bruna Hornink, Pieter A. Zuidema, Peter van der Sleen, Amy E. Zanne, Gabriel Assis‐Pereira, Daigard Ricardo Ortega Rodriguez, Claudia Fontana, Leif Armando Portal‐Cahuana, Edilson Jimmy Requena‐Rojas, Ana Carolina Maioli Campos Barbosa, Daniela Granato‐Souza, Lucas Guimarães Pereira, Claudio Sergio Lisi, Itallo Romany Nunes Menezes, Alejandro Venegas‐Gonzalez, Nelson Jaén‐Barrios, Fidel A. Roig, Mario Tomazello‐Filho, Peter Groenendijk   +18 more
wiley   +1 more source

Biogeographic Distribution of Cedrela spp. Genus in Peru Using MaxEnt Modeling: A Conservation and Restoration Approach

Diversity, 2021
The increasing demand for tropical timber from natural forests has reduced the population sizes of native species such as Cedrela spp. because of their high economic value.
Alexander Cotrina Sánchez, Nilton B. Rojas Briceño, Subhajit Bandopadhyay, Subhasis Ghosh, Cristóbal Torres Guzmán, Manuel Oliva, Betty K. Guzman, Rolando Salas López   +7 more
doaj   +1 more source

Do multipurpose companion trees affect high value timber trees in a silvopastoral plantation system? [PDF]

, 2018
Establishment of native timber trees on deforested land may contribute to the livelihood of farmers, to improved ecosystem services and to increased greenhouse gas uptake. Here, we present a new silvopastoral planting design to assess species performance
Dorn, Silvia, Mody, Karsten, Plath, Mirco, Potvin, Catherine   +3 more
core  

Strong ENSO Forcing of Wet Season Rainfall Extremes in the Eastern Amazon

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Recent years have seen strong droughts and floods in the Amazon basin, the largest center of atmospheric convection on land. To assess to what degree these events are extreme in a historical perspective requires accurate and long‐term climate data, which are generally lacking for this part of the world.
L. Guimarães‐Pereira, A. C. Barbosa, D. W. Stahle, M. C. A. Torbenson, D. Granato‐Souza, C. L. Farrapo, E. Gloor, R. Brienen, A. Boom   +8 more
wiley   +1 more source

Interrelationship between tree-ring width and supra-annual reproductive behaviour of Cedrela odorata: an alert for dendrochronological research

Journal of Plant Ecology
Allocating resources for reproduction involves ecological and evolutionary factors and can reduce vegetative growth in plants. This interrelationship is not easily observed in nature, as there are many parameters that can limit the production of ...
M. S. Costa, T. J. de Vasconcellos, C. Lisi, A. F. Brandes, Mário Tomazello-Filho, C. Callado   +5 more
semanticscholar   +1 more source

Oxygen Isotopes as a Key Proxy of Equatorial Pacific SST Variability in a Multiparametric Tree‐Ring Approach in the Low‐Latitude Andes

Paleoceanography and Paleoclimatology, Volume 40, Issue 9, September 2025.
Abstract Sea surface temperature (SST) variability in the equatorial Pacific plays a crucial role in shaping global climate patterns. As El Niño–Southern Oscillation (ENSO)‐related extremes intensify, understanding SST fluctuations and their connection to ENSO becomes increasingly important.
C. Rodríguez‐Morata, E. J. Requena‐Rojas, G. Ticse‐Otarola, M. S. Morales, R. D’Arrigo, D. B. Crispín‐DelaCruz, L. Andreu‐Hayles   +6 more
wiley   +1 more source

The impact of the invasive tree Cedrela odorota on the Electric Blue Gecko (Lygodactylus williamsi) and its habitat (Pandanus rabaiensis) in Kimboza Forest Reserve, Tanzania

Global Ecology and Conservation, 2022
Non-native plants are a major cause of habitat loss and fragmentation that lead to biodiversity loss. Geckos are particularly vulnerable to habitat alterations due to their small range and their restricted and specific terrestrial habits.
Charles Joseph Kilawe, Hadija Ahmad Mchelu, Cosmas John Emily   +2 more
doaj   +1 more source

Psilídeos no Brasil: 8 - Mastigimas anjosi (Hemiptera, Psylloidea), nova praga da Toona ciliata no Brasil. [PDF]

, 2013
bitstream/item/82815/1/CT-313-Dalva-final ...
ANJOS, N. dos, BURCKHARDT, D., QUEIROZ, D. L. de   +2 more
core