Results 61 to 70 of about 2,162 (200)

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker   +6 more
wiley   +1 more source

Biologia floral e polinização por abelhas em siratro (Macroptilium atropurpureum Urb.)

open access: yesActa Scientiarum: Animal Sciences, 2008
Cette recherche a été réalisée pour évaluer la pollinisation chez le siratro en étudiant la période d'anthèse, la viabilité des grains de pollen et la production de graines. Deux traitements ont été utilisés, l'un couvert et l'autre découvert. La période d'anthèse était de 2,48 jours et de 3,56 jours (p = 0,0001) et la production était de 8,62 et 11,15
Renata Eunice Vieira   +8 more
openaire   +2 more sources

The collective application of shorebird tracking data to conservation

open access: yesConservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison   +71 more
wiley   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Polinização de Lantana fucata Lindley (Verbenaceae) por Parides ascanius Cramer (Lepidoptera: Papilionidae) na Restinga de Grumari, Rio de Janeiro, RJ

open access: yesEntomoBrasilis, 2011
Este estudo teve como objetivo investigar a dinâmica da polinização de Lantana fucata Lindley por Parides ascanius Cramer na restinga da Área de Proteção Ambiental de Grumari, localizada na região oeste do município do Rio de Janeiro.
Fábio Castro Verçoza   +1 more
doaj   +2 more sources

Biologia floral de Cleistes macrantha (Barb. Rodr.) Schltr. (Orchidaceae: Vanilloideae: Pogoniinae) [PDF]

open access: yesRevista Brasileira de Botânica, 2003
Cleistes macrantha (Barb. Rodr.) Schltr. is widely distributed in Atlantic rain forests in south and southeastern Brazil, occurring in anthropogenic disturbed areas and in "restinga" vegetation. Aspects of the floral biology of C. macrantha were investigated in the Intervales nature reserve, in the interior of Sao Paulo state.
openaire   +3 more sources

Evaluating the protection status and exposure to warming of Caribbean reefs with high functional potential

open access: yesConservation Biology, EarlyView.
Abstract Over the past decades, climate change has emerged as a major threat to global biodiversity, negatively affecting the integrity and functioning of ecosystems and the benefits they provide to people. To mitigate these impacts, it is essential to identify climate refugia that support the persistence of the structure and function of reef ...
Sara M. Melo‐Merino   +4 more
wiley   +1 more source

FUNCTIONAL DIOECY AND MOTH POLLINATION IN CABRALEA CANJERANA SUBSP. CANJERANA (MELIACEAE)

open access: yesDarwiniana, 2015
Cabralea canjerana subsp . canjerana es una especie común en la Mata Atlántica del sudeste de Bra - sil ; sin embargo, poco se sabe acerca de sus estrategias reproductivas .
Edivani V. Franceschinelli   +3 more
doaj  

Aspectos reproductivos de Schinus areira L. (Anacardiaceae) en Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica, 2018
Schinus areira L. es un árbol naturalizado en el noroeste y oeste de Argentina y extensamente cultivado en el país. Nuestros objetivos fueron (1) determinar la biología floral y reproductiva de S.
María A. Zapater   +7 more
doaj   +1 more source

Biologia floral de Solanum seaforthianum Andr. (Solanaceae)

open access: yesCONTRIBUCIONES A LAS CIENCIAS SOCIALES
Solanum L. trata-se do gênero mais robusto de Solanaceae e embora uma quantidade representativa de seus membros seja considerada invasora, muitos de seus representantes permanecem incompreendidos do ponto de vista reprodutivo. Estudos da biologia floral são importantes para a compreensão dos aspectos ecológicos e funcionais, assim como dos eventos que ...
openaire   +1 more source

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