Results 91 to 100 of about 29,316 (287)

Area‐restricted search under realistic constraints

Oikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source

Efecto de factores ambientales en la actividad de la abeja y en el rendimiento de semilla de cebolla (Allium cepa L.) [PDF]

, 2019
Los polinizadores son necesarios para producir semillas de cebolla. Esta especie es uno de los principales cultivos hortícolas. Dos tipos de variedades de cebolla se cultivan principalmente en todo el mundo: híbridos y cultivares de polinización abierta (
Caselles, Cristian, Galmarini, Claudio Romulo, Soto Vargas, Verónica Carolina   +2 more
core  

Draft genome of Rosenbergiella nectarea strain 8N4T provides insights into the potential role of this species in its plant host. [PDF]

, 2020
Background:Rosenbergiella nectarea strain 8N4T, the type species of the genus Rosenbergiella, was isolated from Amygdalus communis (almond) floral nectar. Other strains of this species were isolated from the floral nectar of Citrus paradisi (grapefruit),
Halpern, Malka, Izhaki, Ido, Kyrpides, Nikos C, Laviad-Shitrit, Sivan, Shapiro, Nicole, Whitman, William B, Woyke, Tanja   +6 more
core  

Características palinológicas y fisicoquímicas de tres tipos de mieles uniflorales del centro de Argentina [PDF]

, 2006
Se estudiaron las características de 59 mieles monoflorales de Condalia microphylla Cav. (“piquillín”), Centaurea solstitialis L. (“abrepuño amarillo”) y Prosopis spp., provenientes de La Pampa, Argentina. Se determinaron caracteres polínicos (abundancia
Naab, O.A., Tamame, Maria Angelica, Caccavari, Marta Alicia   +2 more
core   +2 more sources

Pollinator adaptation and the evolution of floral nectar sugar composition [PDF]

Journal of Evolutionary Biology, 2016
AbstractA long‐standing debate concerns whether nectar sugar composition evolves as an adaptation to pollinator dietary requirements or whether it is ‘phylogenetically constrained’. Here, we use a modelling approach to evaluate the hypothesis that nectar sucrose proportion (NSP) is an adaptation to pollinators.
Abrahamczyk, Stefan, Kessler, Michael, Hanley, Daniel, Karger, Dirk Nikolaus, Müller, Matthias P J, Knauer, Anina C, Keller, Felix, Schwerdtfeger, Michael, Humphreys, Aelys M   +8 more
openaire   +4 more sources

Flowering out of sync: Climate change alters the reproductive phenology of Terminalia paniculata in the Western Ghats of India

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how climate change impacts the plant life cycle is critical for maintaining biodiversity and ecosystem services. Our findings suggest that Terminalia paniculata Roth, a common tropical deciduous tree species in the Western Ghats, is now flowering and fruiting at more scattered times than it used to in the past.
Ananthapadmanaban Karthikeyan, Venkatraman Karthik, Sivagnanam Chandrasekaran   +2 more
wiley   +1 more source

The effect of within-crop habitat manipulations on the conservation biological control of aphids in field-grown lettuce [PDF]

, 2011
Within-crop habitat manipulations have the potential to increase the biological control of pests in horticultural field crops. Wildflower strips have been shown to increase the abundance of natural enemies, but there is little evidence to date of an ...
Kravar-Garde, L. (Lidija), Mead, A. (Andrew), Reynolds, K., Skirvin, David J., Wright, C.   +4 more
core   +1 more source

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

PLANTS, PEOPLE, PLANET, EarlyView.
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

Economic aspects of the bee industry / [PDF]

, 1933
B55
Galbraith, John Kenneth, 1908-2006, Todd, Frank E. (Frank Edward), 1895-, Voorhies, Edwin C. (Edwin Coblentz), 1891-1967   +2 more
core   +2 more sources

The co-optimization of floral display and nectar reward

Journal of Biosciences, 2009
In most insect-pollinated flowers, pollinators cannot detect the presence of nectar without entering the flower. Therefore, flowers may cheat by not producing nectar and may still get pollinated. Earlier studies supported this 'cheater flower' hypothesis and suggested that the cost saving by cheater flowers could be the most predominant selective force
Prajakta V, Belsare, Balasubramanian, Sriram, Milind G, Watve   +2 more
openaire   +2 more sources