Results 41 to 50 of about 7,879 (150)

Angiosperm pollen grains from the Cuayuca Formation (Late Eocene to Early Oligocene), Puebla, Mexico [PDF]

open access: yes, 2015
Systematic descriptions and illustrations of the best preserved angiosperm pollen grains (Monocotyledonae or Liliopsida: n= 7 and Dicotyledonae or Magnoliopsida: n= 41) recovered from Cuayuca Formation (late Eocene-early Oligocene), Puebla State ...
Martínez Hernández, Enrique   +2 more
core   +1 more source

Data integration advances reproductive phenology research across temporal, spatial and taxonomic scales

open access: yesEcography, Volume 2026, Issue 4, April 2026.
Climate change is altering plant reproductive phenology; however, a scarcity of long‐term, systematic monitoring hinders our ability to quantify and predict these responses in many parts of the world. We addressed this gap by demonstrating how data integration can be used to produce a synthesised record of reproductive phenology observations (flowering
Ella Cathcart‐van Weeren   +14 more
wiley   +1 more source

Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]

open access: yes, 2019
The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core   +2 more sources

Composition of tree species in Onigambari Forest Reserve, Oyo State, Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2020
The tree composition of Onigambari Forest Reserve in Oyo State was evaluated by laying out a plot size of 50 x 50 m2 resulting to four plots per hectare. 104 and 93 stems per hectare were recorded.
N.O. Haastrup   +8 more
doaj   +1 more source

The Role of Participatory Forest Management on Forest Composition, Diversity, and Regeneration: A Study of Guangua Elala Forest, Northwestern Ethiopia

open access: yesInternational Journal of Forestry Research, Volume 2026, Issue 1, 2026.
Participatory forest management (PFM) is increasingly recognized as an effective approach for forest conservation and sustainable resource use in Ethiopia, yet empirical evidence of its ecological outcomes remains limited. This study assessed the effects of PFM on forest composition, diversity, and regeneration in the Guangua Elala Forest, Northwestern
Sintayehu Getie   +4 more
wiley   +1 more source

DNA Barcoding Reveals Cryptic Diversity and Informs Conservation Priorities in Chinese Firmiana Species (Malvaceae) Using Genome Skimming Data DNA条形码揭示中国梧桐属 (锦葵科) 隐存多样性及保护优先级:来自基因组浅层测序数据的证据

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 569-583, December 2025.
Accurate species identification is critical for conserving endangered Firmiana trees in China. However, morphological similarities among closely related Firmiana species complicate its taxonomic identification. We conducted genome skimming on 62 samples representing all 10 Chinese species and discovered nrITS as the optimal DNA barcode, achieving 100 ...
Li‐Jun Yan   +8 more
wiley   +1 more source

Uma nova Sterculia L. (Sterculiaceae) para a Amazônia [PDF]

open access: yesActa Amazonica, 2001
Descoberta na Reserva A. Ducke, Manaus, Amazonas, Sterculia duckei Taylor ex J. A. C. Silva et Μ. F. Silva, nov. sp., mostra afinidade com S. pruriens, diferindo dela, principalmente, por apresentar em suas flores pêlos estrelados e glândulas ...
José Augusto Coelho da SILVA   +1 more
doaj   +1 more source

Shedding Light on Shining Leaf Chafers: Rutelinae MacLeay, 1819 (Coleoptera, Scarabaeoidea, Scarabaeidae) as a Neglected Group of Pollinators

open access: yesJournal of Applied Entomology, Volume 149, Issue 10, Page 1584-1599, December 2025.
ABSTRACT The interactions between insects and angiosperms date back to millions of years ago. Among the groups of pollinating animals, it is estimated that insects are responsible for pollinating more than 70% of angiosperms. Coleoptera is one of the most studied insect groups for pollination.
André da Silva Ferreira   +6 more
wiley   +1 more source

Kakaobaum - Theobroma cacao (Sterculiaceae) [PDF]

open access: yes, 2008
Pflanzenporträt
Höggemeier, Annette
core  

Preparation, Structure, and Bioactivities of Medicinal and Edible Homologous Plant Polysaccharides: A Review

open access: yesFood Science &Nutrition, Volume 13, Issue 8, August 2025.
This article reviews the research progress of medicinal and edible homologous plant polysaccharides (MEHPPs). It introduces their extraction and purification methods, expounds on structural characterization techniques, and elaborates on various biological activities and their mechanisms, providing a basis for the development of drugs and health ...
Mengnan Chen   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy