Results 51 to 60 of about 1,183 (182)

Foraging of Scaptotrigona aff. depilis (Hymenoptera, Apidae) in an Urbanized Area: Seasonality in Resource Availability and Visited Plants

open access: yesPsyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012
The floral sources used by bees can be identified by analyzing pollen grains obtained from their bodies, feces, brood cells, or storage pots in the nests. In addition to data on resource availability, this information enables the investigation on the selection of food resource by bees. We assessed the foraging patterns of Scaptotrigona aff.
Letícia Biral de Faria   +5 more
wiley   +1 more source

Tree Species Richness and Diversity Among Selected Urban Forest Types in Lilongwe City, Malawi

open access: yesInternational Journal of Forestry Research, Volume 2025, Issue 1, 2025.
Urban vegetation plays a crucial role in achieving Sustainable Development Goal (SDG) 11 by providing ecosystem services in cities. In support of this goal, this study aimed at determining the present urban tree species richness and diversity in Lilongwe City, Malawi, across six forest types: cemeteries, institutional lands, parks and recreation ...
Masautso Chikuwi   +3 more
wiley   +1 more source

Neutral Sterols of Cephalic Glands of Stingless Bees and Their Correlation with Sterols from Pollen

open access: yesPsyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012
Sterols are essential molecules in the membrane lipid composition and precursors of important sterol hormones that regulate many developmental processes. Insects are unable to synthesize sterols de novo and, thus, all phytophagous insects depend on an exogenous source of sterols for growth, development, and reproduction.
Maria Juliana Ferreira-Caliman   +5 more
wiley   +1 more source

Silage from heart-of-palm waste produced from Alexander palm tree

open access: yesRevista Colombiana de Ciencias Pecuarias, 2019
Background: Production of heart-of-palm from Alexander palm tree generates a waste that could be used as silage for feeding ruminants. Objective: To evaluate the chemical composition, fermentation parameters, and quality of silage made from waste of ...
Geraldo F. V. Bayão   +9 more
doaj   +1 more source

Manejo fitossanitário em viveiros de palmeiras para palmito. [PDF]

open access: yes, 2014
bitstream/CNPF-2009-09/42637/1/Circular146 ...
SANTANA, D. L. Q.   +3 more
core   +1 more source

Flood resilience: Response of an Australian sub‐tropical riparian rainforest to catastrophic flooding

open access: yesAustral Ecology, Volume 49, Issue 8, August 2024.
Responding to historically significant major flooding, this research assessed the flood‐resilience of a sub‐tropical riparian rainforest. Pre‐ and post‐flood (3, 6, and 12 months) floristic data were tested for significant changes. Additionally, persistence (taxa flood response via resprouting, recruitment, or both) was included in the assessment ...
Léandra Martiniello   +3 more
wiley   +1 more source

Germinação das sementes e análise citogenética em duas espécies de palmeiras

open access: yesOrnamental Horticulture, 2012
Euterpe edulis e Archontophoenix alexandrae são palmeiras usadas para ornamentação e extração do palmito. Foram avaliados a germinação e o IVG das sementes, o comportamento dos cromossomos mitóticos e meióticos e a quantificação de pólen viável.
Alice Battistin   +6 more
doaj   +1 more source

Estimativa da variabilidade genética do dendezeiro (Elaeis guineensis Jacq.) por marcadores RAPD em área de ocorrência da doença amarelecimento fatal. [PDF]

open access: yes, 2014
O dendezeiro (Elaeis guineensis Jacq.) é uma espécie vegetal de extrema importância econômica no Estado do Pará, sendo indispensáveis estudos que viabilizem a sua caracterização genética, a fim de direcionar programas de melhoramento nesta espécie e o ...
BOARI, A. de J.   +3 more
core  

Nutritional Composition and Acute Toxicity Potentials of Archontophoenix tukeri and Adonidia merrilli Kernels

open access: yesPharmaceutical and Biosciences Journal, 2017
Archontophoenix tukeri and Adonidia merrilli are exotic species widely grown in Nigeria as ornamental palms. In this study, the kernels of A. tukeri and A. merrilli were subjected to amino acids, fatty acids, proximate, anti-nutrients and mineral element analyses, in addition to acute toxicity evaluation.
null Bassey S. Antia   +2 more
openaire   +1 more source

Time since first naturalization is key to explaining non‐native plant invasions on islands

open access: yesJournal of Biogeography, Volume 51, Issue 8, Page 1340-1350, August 2024.
Abstract Aim Investigating the extent of insular invasions by non‐native species (i.e., the number of islands they occupy) is central to island conservation. However, interrelationships among plant life history traits, naturalization histories, and island characteristics in determining island occupancy by non‐native plant species are poorly understood.
Fabio Mologni   +3 more
wiley   +1 more source

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