Results 51 to 60 of about 13,740 (205)

Patterns of Tree Species Abundance and Diversity on Urban Sidewalks in Macapá, Amapá, Brazil

open access: yesEcological Research, Volume 41, Issue 2, March 2026.
This study presents the first systematic inventory of street trees in Macapá, Northeastern Brazilian Amazon. Results reveal a dominance of exotic and fruit‐bearing species, low tree density, and a replacement of large canopy trees by smaller ones, indicating potential losses in ecosystem services and the need for more biodiversity‐focused afforestation
Lorena Antunes Jimenez   +8 more
wiley   +1 more source

Flora da Paraíba, Brasil: Combretaceae [PDF]

open access: yesActa Botanica Brasilica, 2009
Apresenta-se o tratamento taxonômico da família Combretaceae como parte do projeto "Flora da Paraíba", que vem sendo realizado com o objetivo de identificar e catalogar as espécies da flora local. As identificações, descrições e ilustrações botânicas foram efetuadas pela análise morfológica de amostras frescas e espécimes herborizados, com o auxílio da
Loiola, Maria Iracema Bezerra   +3 more
openaire   +3 more sources

Preference and In Vitro Digestibility of Leaves of Woody Plants by Sheep in the Northern Sudanian Zone

open access: yesJournal of Animal Physiology and Animal Nutrition, Volume 110, Issue 2, Page 200-212, March 2026.
ABSTRACT In West Africa, trees and shrubs are important for feeding ruminant livestock during the dry season. This study aimed to determine the in vitro digestibility of organic matter from eight woody species using a gas test with and without the addition of polyethylene glycol (PEG), and evaluate their preference by sheep using a cafeteria test ...
Linda C. Gabriella Traore   +5 more
wiley   +1 more source

Look at the trees: synopsis of Terminalia s.s. in the Brazilian Amazon with conservation and distribution implications

open access: yesAnais da Academia Brasileira de Ciências, 2022
Terminalia L. has a pantropical distribution, almost exclusively constituting tropical Combretaceae. In this work, a comprehensive synopsis of all the native species of Terminalia s.s. in the Brazilian Amazon is presented, including diagnostic characters,
RAYANE T. M. RIBEIRO   +2 more
doaj   +1 more source

Relative pollen productivity estimates from India: A step towards quantitative reconstruction of past plant abundance

open access: yesEcosphere, Volume 17, Issue 2, February 2026.
Abstract Pollen records and models of pollen–vegetation relationships are required to reconstruct past plant abundances during the Holocene to answer specific questions on climate history, human impact, biodiversity, and their interactions. An important parameter for model applications is pollen productivity, estimated as relative pollen productivity ...
R. Navya   +5 more
wiley   +1 more source

INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]

open access: yes, 2016
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core   +1 more source

Acetylcholinesterase inhibitors from Conocarpus lancifolius Engl. (Combretaceae)

open access: yesNatural Product Research, 2022
Conocarpus lancifolius Engl. (Combretaceae) has several potential health-promoting effects, such as antidiabetic, antimicrobial, antioxidant, and cytotoxic effects. Phytochemical study of the ethyl acetate fraction of the leaf extract of this plant led to the isolation and identification of eight compounds viz., gallic acid (1), dihydromyricetin (2 ...
Fatma M. Abdel Bar   +3 more
openaire   +2 more sources

Floristic Diversity of Riparian and Associated Vegetation Along the Amnay River (The Philippines)

open access: yesPlant-Environment Interactions, Volume 7, Issue 1, February 2026.
ABSTRACT Riparian vegetation plays a critical role in maintaining ecological integrity along river corridors, yet it is highly sensitive to changes in hydrological and geomorphic conditions, particularly in sediment‐influenced tropical river systems.
Enrico L. Replan
wiley   +1 more source

Report of new invasive scale insects (Hemiptera: Coccoidea), Crypticerya multicicatrices Kondo and Unruh (Monophlebidae) and Maconellicoccus hirsutus (Green) (Pseudococcidae), on the islands of San Andres and Providencia, Colombia, with an updated taxonomic key to iceryine scale insects of South America [PDF]

open access: yes, 2012
The multicicatrices fluted scale, Crypticerya multicicatrices Kondo and Unruh (Hemiptera: Coccoidea: Monophlebidae) is reported from the islands of San Andres and Providencia, Colombia, as a recent invasive species.
Gullan, Penny   +2 more
core   +2 more sources

Phytochemical Constituents of Combretum Loefl. (Combretaceae) [PDF]

open access: yesPharmaceutical Crops, 2013
Combretum is the largest and most widespread genus of Combretaceae. The genus comprises approximately 250 species distributed throughout the tropical regions mainly in Africa and Asia. With increasing chemical and pharmacological investigations, Combretum has shown its potential as a source of various secondary metabolites.
Dawe, Amadou   +3 more
openaire   +2 more sources

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