Results 81 to 90 of about 57,060 (303)

The Use of an Anthrone Reagent to Detect Sugar Meals and Their Persistence in the Mosquito \u3ci\u3eAedes Triseriatus\u3c/i\u3e (Diptera: Culicidae) [PDF]

open access: yes, 2017
Adults of Aedes triseriatus were fed water, blood, and 10% pure and mixed solutions of glucose, fructose and sucrose. Adults were tested for fructose by the cold-anthrone test 0, 1, 4, 12, and 24 h after feeding. Water-fed males and females and blood-fed
Kurtz, Richard M, Smith, Stephen M
core   +2 more sources

Nectar bacteria, but not yeast, weaken a plant–pollinator mutualism [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2013
Mutualistic interactions are often subject to exploitation by species that are not directly involved in the mutualism. Understanding which organisms act as such ‘third-party’ species and how they do so is a major challenge in the current study of mutualistic interactions. Here, we show that even species that appear ecologically similar can
Rachel L, Vannette   +2 more
openaire   +2 more sources

Longitudinal Videofluorographic Dysphagia Measures in Progressive Supranuclear Palsy

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Dysphagia can lead to fatal aspiration pneumonia in progressive supranuclear palsy (PSP). Little is known about the longitudinal progression of dysphagia or whether it differs across PSP clinical variants. Objectives To characterize longitudinal changes in dysphagia across PSP variants and determine relationships with disease ...
Anna Chiara Cattani   +8 more
wiley   +1 more source

Diurnal nectar secretion dynamics in Roscoea cautleoides (Zingiberaceae) reveal the role of non-sugar chemicals in plant–pollinator interaction

open access: yesCurrent Plant Biology
Floral nectar is essential for plant-pollinator interactions, directly influencing plant reproduction. Although the composition of nectar has been widely studied, the daily dynamics of non-sugar components in the nectar remain unknown.
Wen-Jing Wang   +5 more
doaj   +1 more source

Generalist‐pollinated Arabis alpina exhibits floral scent variation at multiple scales

open access: yesNordic Journal of Botany, EarlyView.
Plants that depend on animals for reproduction often use complex floral traits to attract pollinators. Floral scent is recognized as part of the pollinator attraction module and can be shaped by plant‐pollinator interactions. In recent decades, research has started to reveal the dynamic properties of floral scent, identifying patterns of spatial and ...
Hanna Thosteman   +5 more
wiley   +1 more source

Metabolomic Profiling of Nicotiana Spp. Nectars Indicate That Pollinator Feeding Preference Is a Stronger Determinant Than Plant Phylogenetics in Shaping Nectar Diversity

open access: yesMetabolites, 2020
Floral nectar is a rich secretion produced by the nectary gland and is offered as reward to attract pollinators leading to improved seed set. Nectars are composed of a complex mixture of sugars, amino acids, proteins, vitamins, lipids, organic and ...
Fredy A. Silva   +7 more
doaj   +1 more source

Suitability of leguminous cover crop pollens as food source for the green lacewing Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae). [PDF]

open access: yes, 2006
Diversification of crops with species that provide suitable pollen for predators may reduce pest population on crops by enhancing predator effectiveness.
Euzébio, Denise E.   +4 more
core   +2 more sources

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

open access: yesNordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe   +3 more
wiley   +1 more source

Companion biota associated with Leptospermum scoparium (mānuka; Myrtaceae) : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Ecology at Massey University, Manawatū, New Zealand [PDF]

open access: yes, 2018
Leptospermum scoparium (mānuka; Myrtaceae) is involved in three crucial ecological interactions that might affect nectar production, and the New Zealand honey industry.
Bohórquez Rodríguez de Medina, Julia
core  

Arthropods Utilizing Sticky Inflorescences of \u3ci\u3eCirsium Discolor\u3c/i\u3e and \u3ci\u3ePenstemon Digitalis\u3c/i\u3e [PDF]

open access: yes, 2018
Cirsium discolor (Muhl) Spreng (Asteraceae) and Penstemon digitalis Nutt. (Scrophulariaceae) produce sticky material only in their inflorescences. While there is a wealth of printed information concerning such sticky traps occurring in other parts of ...
Thomas, Patricia A
core   +2 more sources

Home - About - Disclaimer - Privacy