Results 31 to 40 of about 3,183 (121)

Speciation with gene flow

PLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1476-1499, September 2026.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

<b>CARACTERIZAÇÃO DO POTENCIAL ANTIMICROBIANO DOS EXTRATOS DE PÓLEN APÃCOLA DA REGIÃO SUL DO BRASIL</b>

Alimentos e Nutrição, 2009
<p align="justify"> A descoberta de que certos alimentos podem prevenir doenças iniciou uma revolução nas áreas de nutrição, farmácia, medicina e ciência de alimentos. Dentro deste contexto, o pólen apícola é considerado uma excelente fonte nutricional benéfi ca a saúde, principalmente pela presença de compostos fenólicos com ...
SOLANGE TERESINHA CARPES, INGRIDY SIMONE RIBEIRO CABRAL, PEDRO LUIZ ROSALEN, SEVERINO MATIAS DE ALENCAR, MARIA LúCIA MASSON   +4 more
openaire   +1 more source

Palinologia de espécies de Gesneriaceae Rich. & Juss. ocorrentes no Estado do Rio de Janeiro, Brasil Palynology of Gesneriaceae Rich. & Juss. species from Rio de Janeiro State, Brazil

Acta Botânica Brasílica, 2010
Foi realizado um estudo palinológico de 21 espécies da família Gesneriaceae reunidas em seis gêneros e três tribos: tribo Beslerieae -Besleria L. (4 spp.); tribo Episcieae - Codonanthe (Mart.) Hanst. (3 spp.), Nematanthus Schrad.
Ana Carolina da Silva Fourny, Cláudia Barbieri Ferreira Mendonça, Thereza Cristina Costa Lopes, Vania Gonçalves-Esteves   +3 more
doaj   +1 more source

The potential effect of megafaunal extinctions on modern conservation of horse chestnut Aesculus hippocastanum

PLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1563-1566, September 2026.
Many plant species worldwide are struggling to regenerate due to the ongoing effects of climate change. These effects appear to be further exacerbated by the loss of keystone megafauna, which were important seed dispersers. By identifying the traits commonly seen in seeds spread by modern elephants, it is possible to predict which species likely ...
Andrew J. Tighe
wiley   +1 more source

Coleta de pólen e produção de mel e própolis em colônias de abelhas africanizadas (Apis mellifera L.)

Boletim de Indústria Animal, 2013
Foi estudada, na região de Botucatu, SP, 110 período de agosto a dezembro de 1996, a coleta de pólen por abelhas africanizadas e sua influência na produção de mel e própolis. A coleta de pólen, por colmeia, foi de 1,47± 0,88kg. As produções de mel nas colmeias sem e com coletor de pólen foram de 17,0±7,5 kg e de 12,3±3,4 kg ...
Sílvia Regina Cunha Funari, Hélio Carlos Rocha, José Maurício Sforcin, Paulo Roberto Curi, José Matheus Y. Perosa   +4 more
openaire   +5 more sources

EVALUATION OF FLORAL CHARACTERISTICS OF MELON HYBRIDS (Cucumis melo L.) IN POLLINATOR ATTRACTIVENESS

Revista Brasileira de Fruticultura, 2016
Floral morphology and biology are important characteristics for plant-pollinator interactions and may influence the behavior of these agents. This study aimed to determine which floral attributes of different melon hybrids influence this interaction and,
LÚCIA HELENA PIEDADE KIILL, EDSÂNGELA DE ARAÚJO FEITOZA, KÁTIA MARIA MEDEIROS DE SIQUEIRA, MÁRCIA DE FÁTIMA RIBEIRO, EVA MÔNICA SARMENTO DA SILVA   +4 more
doaj   +1 more source

Road air pollution harms the reproductive success of a bee‐pollinated wildflower: A dusty threat to biodiversity

PLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1567-1571, September 2026.
Dust, a common form of air pollution, is particularly problematic on roadsides, which are important habitats for plants and pollinators. We investigated whether and how road dust affects plant sexual reproduction using Primula chungensis in a biodiversity hotspot. Our study provides compelling evidence that road dust can harm plant reproductive success
Yong‐Peng Cha, Yin‐Mei Ma, David W. Inouye, Zhao‐Li Tong, Zhi‐Qiang Zhang   +4 more
wiley   +1 more source

Image Databases for Pollen Grain Classification: Availability, Quality, and Challenges

WIREs Data Mining and Knowledge Discovery, Volume 16, Issue 3, September 2026.
Overview of the study process, from identifying gaps in pollen image databases to a systematic search across six libraries, resulting in 73 final studies, 18 datasets (10 public), and a seven‐point standardization framework proposed under FAIR principles.
Heloise Acco Tives Bedin, Simone de Ramos, André Roberto Ortoncelli, Paula Fernandes Montanher, Patricia A. Jaques   +4 more
wiley   +1 more source

Last millennium environmental changes and climate inferences in the Southeastern Atlantic forest, Brazil

Anais da Academia Brasileira de Ciências, 2010
This study presents paleoenvironmental data based on pollen, elemental and isotopic compositions of organic matter (TOC, N, d13C and d15N) and 14C dating of 170 cm lake sediment record.
Luiz C.R. Pessenda, Soraya E.M.G. Saia, Susy E.M. Gouveia, Marie-Pierre Ledru, Abdelfettah Sifeddine, Paula G.C. Amaral, José A. Bendassolli   +6 more
doaj   +1 more source

Small‐scale adaptation to geothermal soil heating in a perennial herb revealed by combining crosses and transplantations

New Phytologist, Volume 251, Issue 5, Page 3008-3020, September 2026.
Path diagrams showing the results of piecewise structural equation models examining how fitness (total number of seeds in flowering individuals) of Cerastium fontanum depended on temperature at planting site, temperature difference, mating type, and flowering time (FFD, first flowering date) in each of the two study years.
Alicia Valdés, Vigdís F. Helmutsdóttir, Bryndís Marteinsdóttir, Johan Ehrlén   +3 more
wiley   +1 more source