Results 21 to 30 of about 8,376 (222)

Ecophysiological aspects of nectar reabsorption

open access: yesActa Agrobotanica, 2012
A number of approaches, both direct and indirect, have shown that nectar is reabsorbed by numerous plant species, irrespective of the age or sex of the flower.
Małgorzata Stpiczyńska, Massimo Nepi
doaj   +1 more source

Nectar and oleiferous trichomes as floral attractants in Bulbophyllum saltatorium Lindl. (Orchidaceae) [PDF]

open access: yes, 2017
Although many Orchidaceae have deceit flowers that produce no reward, the most common reward, when present, is nectar. Bulbophyllum, however, is unusual in that the labellar secretions of most species investigated to date lack sugars, and, therefore ...
Davies, Kevin L.   +2 more
core   +1 more source

Anatomy of the floral nectaries of 9 species from subf. Pomoideae (Rosaceae)

open access: yesActa Agrobotanica, 2013
The nectaries anatomical features of nine species of Pomoideae subfamily Aronia melanocarpa Ell., Cotoneaster horizontalis Decne, C. praecox Vilm.-Andr., C. lucida Schlecht., Crataegus monogyna Jacq., C. coccinea L., C. crus-galli L., Sorbus aucuparia L.,
Elżbieta Weryszko-Chmielewska   +1 more
doaj   +1 more source

Numerical cognition in bees and other insects [PDF]

open access: yes, 2016
The ability to perceive the number of objects has been known to exist in vertebrates for a few decades, but recent behavioral investigations have demonstrated that several invertebrate species can also be placed on the continuum of numerical abilities ...
Pahl, Mario, Si, Aung, Zhang, Shaowu
core   +1 more source

Nectary structure is not related to pollination system in Trichocereeae cactus from Northwest Argentina

open access: yesAnais da Academia Brasileira de Ciências, 2021
Floral nectaries are essential for plant reproduction but little is known about the relationship between these secretory structures and pollination system in cacti.
VALERIA V. GONZÁLEZ   +4 more
doaj   +1 more source

Entomological and functional role of floral strips in an organic apple orchard: Hymenopteran parasitoids as a case study [PDF]

open access: yes, 2012
Habitat manipulation techniques improve the availability of resources required by natural enemies to increase their effectiveness. This study focused on the effects of floral strips on Hymenopteran parasitoid presence.
Dib, Hazem   +2 more
core   +1 more source

The Influence of Extrafloral Nectaries on Arboreal Ant Species Richness in Tree Communities

open access: yesSociobiology, 2018
Studies investigating the role of resource availability in the species richness patterns can elucidate ecological processes and contribute to conservation strategies.
Marcelo Silva Madureira   +2 more
doaj   +1 more source

Functional Ecology of External Secretory Structures in Rivea ornata (Roxb.) Choisy (Convolvulaceae)

open access: yesPlants, 2022
Plants have evolved numerous secretory structures that fulfill diverse roles and shape their interactions with other organisms. Rivea ornata (Roxb.) Choisy (Convolvulaceae) is one species that possesses various external secretory organs hypothesized to ...
Natthaphong Chitchak   +2 more
doaj   +1 more source

Characteristics of the surface of the epidermis in floral nectaries and the receptacle of mountain ash (Sorbus aucuparia L.)

open access: yesActa Agrobotanica, 2012
The structure of receptacular surfaces of floral nectaries at two flowering stages and the structure of the outer surface of the receptacle of Sorbus aucuparia were investigated using scanning electron microscopy.
Agata Konarska
doaj   +1 more source

Iran supports a great share of biodiversity and floristic endemism for Fritillaria spp. (Liliaceae): A review. [PDF]

open access: yes, 2017
Iran supports a great share of exotic and/or endemic plant genera and species. The genus Fritillaria (Liliaceae) is a precious part of this botanical richness with 19 species, of which 10 are endemic to the country.
Asgari, Davoud   +10 more
core   +2 more sources

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