Results 71 to 80 of about 8,491 (231)

Nectar Secretion of Floral Buds of Tococa guianensis Mediates Interactions With Generalist Ants That Reduce Florivory

open access: yesFrontiers in Plant Science, 2020
The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants.
José Neiva Mesquita-Neto   +4 more
doaj   +1 more source

Colonization and spatiotemporal distribution of bruchid pests in lentil and faba bean fields

open access: yesPest Management Science, EarlyView.
This study of 104 fields identifies Bruchus signaticornis in lentils and B. rufimanus in faba beans as the sole grain‐damaging species. Their uniform distribution within fields and the strong effect of regulatory factors on larvae and egg survival emphasize the need for species‐specific, phenology‐based and spatially informed integrated pest management
Anastasia Chery‐Lagrange   +7 more
wiley   +1 more source

Nectar and pollen in Acer trees can contribute to improvement of food resources for pollinators

open access: yesScientific Reports
In the present study, we quantified floral resources (nectar and pollen production) and their quality (nectar sugar composition, pollen protein content, pollen amino acid composition) in five Acer species (f.
Ewelina Chrzanowska   +5 more
doaj   +1 more source

Expanding Possibilities for the Use of Writing Genres in Early Elementary Science: Investigating First‐Graders’ Multimodal Sequential Explanations

open access: yesScience Education, EarlyView.
ABSTRACT This study investigates the outcomes of the implementation of a first grade unit incorporating multiple modes of representation and genre‐based pedagogy to support writing instruction in the genre of sequential explanations. At the end of a 6‐day unit investigating the structure and functions of carnivorous plants, 47 first graders completed a
Rachel E. Wilson, Leslie U. Bradbury
wiley   +1 more source

Epistemic Objects and Tools on the School Grounds: Addressing Plant Blindness and Knowledge Construction

open access: yesScience Education, EarlyView.
ABSTRACT Plants mediate the supply of energy and matter for all animals, including human beings yet we are faced with “plant blindness” whereby we pay limited attention to and accord little value to plants. Plant blindness is evident in school curricula whereby students have limited opportunities to learn about plants.
Maurice M. W. Cheng, Bronwen Cowie
wiley   +1 more source

Phylogenetic constraints vs. ecology in the nectar composition of Acanthaceae

open access: yesFlora - Morphology, Distribution, Functional Ecology of Plants, 2007
Abstract Nectar composition and concentration were analyzed for 75 samples of 70 species of Acanthaceae representing all major intrafamiliar groups. Analyses of variance were conducted to test for significant differences between pollination syndromes and between taxonomical or phylogenetic groups (∼genera).
Schmidt-Lebuhn, Alexander N.   +3 more
openaire   +2 more sources

Concrete jungle to urban oasis: evaluating scale, vegetation cover, and aggregation of urban greenspaces on wildlife

open access: yesWildlife Biology, EarlyView.
Urban greenspaces are a haven for wildlife in densely populated cities. Wildlife use greenspaces for resource acquisition, shelter, and travel across urbanized landscapes. Greenspace metrics such as herbaceous or woody landcover, size, patchiness, and human land use influence species richness.
Adrianna J. Elihu, Janel L. Ortiz
wiley   +1 more source

Hummingbird interaction niche packing is influenced by species richness and resource availability in the southern tropical Andes

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Niche partitioning is often considered an important mechanism promoting species co‐occurrence in species‐rich communities. As species richness increases, niche partitioning may lead to different niche structures, including increased packing of species niches when the ...
Bryan G. Rojas   +3 more
wiley   +1 more source

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