Results 61 to 70 of about 1,791 (170)

Effects of Temperature Peaks and Water Stress on Tropical Seed Germination: Experimental Trials With Species From Brazil's Northeastern Coastal Zone

open access: yesBiotropica, Volume 58, Issue 5, September 2026.
ABSTRACT Understanding the effects of high temperatures and water deficit on germination provides valuable insights into seed stress tolerance, guiding the use of native seeds in ecological restoration. This study aimed to evaluate the effects of (1) temperature peaks and (2) water stress treatments and post‐stress recovery on the germination of some ...
Hipolyana Simone de Oliveira   +5 more
wiley   +1 more source

Response of frugivorous primates to changes in fruit supply in a northern Amazonian forest [PDF]

open access: yesBrazilian Journal of Biology, 2014
Few attempts have been made to understand how spatiotemporal changes in fruit supply influence frugivores in tropical forests. The marked spatiotemporal variation in fruit supply can affect frugivore abundance and distribution, but studies addressing the effects of this variation on primates are scarce.
openaire   +5 more sources

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 30, August 10, 2026.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva   +5 more
wiley   +1 more source

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1851-1862, August 2026.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Erosive potential of juices of amazonian fruits

open access: yes, 2020
La erosión dental es la pérdida irreversible de la superficie del esmalte o dentina, debido a exposición frecuente de ácidos de origen no bacteriano. A pesar de que ciertos jugos de frutas presentan potencial erosivo in vitro, no existe una evidencia conclusiva al respecto.
Acuña Flores, Shareen Melannie   +3 more
openaire   +1 more source

The role of precipitation and host assemblage composition in shaping bat–bat fly network structure

open access: yesEcosphere, Volume 17, Issue 8, August 2026.
Abstract Climatic seasonality plays an important role in shaping ecological interactions, including those between bats and their ectoparasitic bat flies. Although previous studies have acknowledged the influence of climate on the structure of bat–bat fly interaction networks, the existence of biogeographical patterns driven by climatic seasonality ...
Paulo Mejia   +3 more
wiley   +1 more source

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

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
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

Agronomic performance and nutritional profiling of Theobroma grandiflorum (cupuassu) clones under colombian amazon conditions

open access: yesRevista de Ciencias Agrícolas
Theobroma grandiflorum (cupuassu) is an Amazonian fruit tree of increasing importance for agro-industrial development in Colombia due to its nutritional value and multiple commercial applications.
Pedro Alexander Velasquez-Vasconez   +4 more
doaj   +1 more source

Sustainability of Amazonian fruit trees plots in Loreto, Peru

open access: yes, 2022
La investigación tuvo por objetivos: a) Determinar los indicadores de diversidad en vegetación de los frutales amazónicos y diversidad de artrópodos del suelo en las parcelas de agricultores que fueron instalados por el INIA e IIAP en el área de influencia de la carretera Iquitos – Nauta, Loreto.
Guerra-Teixeira, Aldi Alida   +2 more
openaire   +1 more source

Vitex oreadica and V. umbellata (Lamiaceae): two new species from Cerrado and Atlantic forest of Brazil

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
Vitex L. is a pantropical genus of Lamiaceae comprising 209 taxa. Brazil harbors 35 species, representing nearly 50% of the genus richness in the Neotropics, with the Amazon showing the highest richness, followed by the Atlantic Forest and Cerrado domains. Nevertheless, most taxonomic studies of the genus have been conducted in Africa and Asia.
Thaís Teixeira Conegiro   +2 more
wiley   +1 more source

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