Results 31 to 40 of about 522 (130)

Tropical Bee Assemblage Diversity Decreases With Elevation While Body Size Increases

open access: yesBiotropica, Volume 58, Issue 4, July 2026.
Photos of bee specimens collected in the Colombian Andes across a nearly 3000 m elevational cline. They are arranged to illustrate both the decline in richness with elevation and the increase in community average body size with elevation. ABSTRACT Elevation gradients are powerful drivers of changes in species composition, richness, and functional ...
Nash E. Turley   +6 more
wiley   +1 more source

Diversity of Resilin Incidence in the Insect Leg

open access: yesJournal of Morphology, Volume 287, Issue 6, June 2026.
Resilin incidences in the insect cuticle are commonly detected by fluorescence microscopy using the property of Resilin protein matrices to emit blue light after excitation with UV light. This indirect method produces significant background signal.
Steven Lerch, Bernard Moussian
wiley   +1 more source

Community composition mediates interannual shifts in pollinators' roles within networks

open access: yesNordic Journal of Botany, Volume 2026, Issue 6, June 2026.
Plant–pollinator networks are complex structures that describe interactions between plants and pollinators within ecological communities. Understanding how these networks are organized is crucial for the preservation of populations, communities, and ecosystem services, because network structure is linked to the function and resilience of communities ...
Io Kazantzidou   +3 more
wiley   +1 more source

Biologia floral e polinização de pimenta malagueta (Capsicum frutescens L., Solanaceae): um estudo de caso - DOI: 10.4025/actascibiolsci.v29i4.877

open access: yesActa Scientiarum: Biological Sciences, 2008
A antese, a deiscência das anteras, a receptividade do estigma, o padrão de crescimento do tubo polínico e o percentual de vingamento dos frutos de Capsicum frutescens L.
Darci de Oliveira Cruz   +1 more
doaj   +1 more source

Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives

open access: yesInsect Science, Volume 33, Issue 2, Page 599-617, April 2026.
The genetic basis of sex determination in Lepidoptera was discovered in 2014 in the silkworm Bombyx mori. In this model species, the W chromosome‐derived small piRNA called Fem piRNA downregulates the expression of a Z‐linked gene, Masculinizer (Masc), which leads to the default female‐specific splicing of the doublesex gene (dsxF) and thus to female ...
František Marec   +2 more
wiley   +1 more source

Answering key bumble bee conservation questions by studying discovered wild nests: A Bombus affinis case study

open access: yesInsect Conservation and Diversity, Volume 18, Issue 3, Page 303-318, May 2025.
The information learned from discovered wild bumble bee nests can be of great conservation value if studied in situ and post‐season excavation in a standardised way. We provide standardised guidance to follow when nest discoveries arise, including key conservation questions and methodological guidelines to study behaviour, floral use, genetics, body ...
Tamara A. Smith   +12 more
wiley   +1 more source

Caracterização físico-química de méis de abelhas africanizadas (Apis mellifera L.) comercializado no município de Russas-CE, Brasil

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2013
Este trabalho teve como objetivo caracterizar físico-quimicamente méis de abelhas africanizadas (Apis melífera L.) comercializados no município de Russas-CE, Brasil, em mercados e feiras durante o mês de junho de 2010. Para isto, foram coletadas amostras
Júlio César Pontes Martins   +4 more
doaj   +2 more sources

Pollinator functional group abundance and floral heterogeneity in an agroecological context affect mating patterns in a self‐incompatible wild plant

open access: yesAmerican Journal of Botany, Volume 111, Issue 12, December 2024.
Using a farm‐scale experiment, we investigated how the mating outcomes (expected heterozygosity and paternity correlation) of Cyanus segetum in agroecological infrastructures (herbaceous field margins) are affected by the interplay between pollinator functional group abundance and, respectively, the relative maternal plant attractiveness and the local ...
Audrey Labonté   +12 more
wiley   +1 more source

From Egg to Adult: A Developmental Table of the Ant Monomorium pharaonis

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 342, Issue 8, Page 557-585, December 2024.
Ants are an emerging model for eco–evo–devo studies. Here, we present the first complete developmental table––from embryo to metamorphosis––for the ant Monomorium pharaonis. While doing so, we discovered embryos with two different patterns of localization of germ cells that will develop either into fertile (queen) embryos or into sterile (worker ...
Arjuna Rajakumar   +8 more
wiley   +1 more source

Análisis palinológico de mieles y cargas de polen de Apis mellifera (Apidae) de la región Centro y Norte del estado de Guerrero, México

open access: yesBotan‪ical Sciences, 2016
El presente trabajo es una contribución al conocimiento del contenido polínico de seis muestras de miel y seis muestras de cargas de polen de Apis mellifera para conocer el origen botánico y geográfico, procedentes de las regiones Centro y Norte de ...
Elia Ramírez Arriaga   +3 more
doaj   +1 more source

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