Results 81 to 90 of about 369,684 (247)
Background Synchronopatric plant species, coexisting and flowering simultaneously, often engage in intense competition for pollen deposition on shared pollinators.
Cristina Adriane de Souza Pontes +2 more
doaj +1 more source
RESUMO O gênero Cordiera (Rubiaceae) possui aproximadamente 25 espécies e ampla distribuição no Brasil. Seus representantes são árvores ou arbustos dioicos, com flores funcionalmente unissexuadas. Este estudo foi realizado em dois fragmentos de Floresta
Simone Santos de Oliveira Cobra +4 more
doaj +1 more source
What climate adaptation can learn from evolutionary adaptation
Abstract Evolutionary and climate adaptation both describe how complex systems respond to environmental change, either via natural selection or deliberate human choices. Although adaptation in both contexts is expected to produce favorable outcomes, it can also result in maladaptation—ineffective, unintended, or harmful outcomes. As an emerging area of
Amy Waananen +2 more
wiley +1 more source
MORFOLOGÍA Y MORFOMETRÍA DE DOS ESPECIES DE BANDERITAS (ORCHIDACEAE: MASDEVALLIA) EN COLOMBIA
Masdevallia coccinea y Masdevallia ignea (Orchidaceae) son orquídeas ornamentales y muy apreciadas por cultivadores aficionados y coleccionistas (Leathers, 2007).
MONICA ADRIANA CUERVO MARTÍNEZ +2 more
doaj
Floração e morfologia floral de variedades de melancieira em Juazeiro-BA
A melancieira apresenta comumente flores masculinas e femininas na mesma planta, necessitando assim dos serviços de polinização para a transferência dos grãos de pólen e consequente produção de frutos. A atratividade aos polinizadores está na dependência
P. M. Duarte +4 more
doaj +1 more source
Impact of climate on the migration phenology of the endangered Little Bustard in Spain
The phenology of animals is closely tied to seasonal climatic patterns so, by altering temperature and precipitation regimes, climate change disrupts the phenological cycles of species. More specifically, the influence of rising temperatures on the phenology of bird migration has been long studied.
Irene Hernández‐Téllez +6 more
wiley +1 more source
Different reproductive traits are compared among wild a 1d cultivated populations of Phaseolus coccineus L., growing along an altitudinal gradient (2 200-3 000 m) and under different environmental conditions.
Alberto Búrquez, J. Sarukhán
semanticscholar +1 more source
Climate‐only models predict severe habitat contractions by 2100, especially in the Amazon, Cerrado and Caatinga, while southern and coastal Atlantic Forest areas remain refugial. Including artificial light at night increased projected stability and apparent suitability gains, especially in central and eastern South America.
Janderson Batista Rodrigues Alencar +3 more
wiley +1 more source
Is the pollination efficiency of long-lived orchid flowers affected by age?
The long-lived flowers of orchids increase the chances of pollination and thus the reproductive success of the species. However, a question arises: does the efficiency of pollination, expressed by fruit set, vary with the flower age?
Rúbia Santos Fonseca +2 more
doaj +1 more source

