Results 51 to 60 of about 19,455 (205)

Factors shaping community assemblages and species co-occurrence of different trophic levels [PDF]

open access: yes, 2017
Species assemblages are the results of various processes, including dispersion and habitat filtering. Disentangling the effects of these different processes is challenging for statistical analysis, especially when biotic interactions should be considered.
Balseiro, Diego   +6 more
core   +1 more source

Elucidating R‐gene‐mediated resistance to wheat dwarf virus in Triticum aestivum genotypes

open access: yesAnnals of Applied Biology, EarlyView.
This study investigates R‐gene‐mediated resistance to wheat dwarf virus (WDV) among different wheat genotypes. Following inoculation with Psammotettix alienus (leafhoppers) and the subsequent appearance of characteristic symptoms such as yellowing and dwarfing, phenotypic responses were evaluated alongside molecular analyses, including quantification ...
Priyanka Krishnamurthy   +3 more
wiley   +1 more source

Heirloom Dry Bean Variety Trial [PDF]

open access: yes, 2016
Dry beans (Phaseolus vulgaris), a high-protein pulse crop, have been grown in the Northeast since the 1800’s. As the local food movement continues to diversify and expand, consumers are asking stores to carry more and more locally-produced foods, and dry
Darby, Heather
core   +1 more source

1164. Echinacea simulata McGregor

open access: yesCurtis's Botanical Magazine, EarlyView.
Summary Echinacea simulata McGregor (Compositae: Heliantheae: Zinniinae) is described and illustrated. Notes are provided for the species' cultivation, propagation, likely pests and diseases, and availability. A full synonymy is given, along with type citations and known presence of type material, together with relevant notes. Statements of the species'
Nicholas Hind, Deborah Lambkin
wiley   +1 more source

Transmission of Chickpea chlorotic dwarf virus in Chickpea by the leafhopper Orosius albicinctus (Distant) in Pakistan - Short communication

open access: yesPlant Protection Science, 2011
Chickpea chlorotic dwarf virus (CpCDV, genus Mastervirus, family Geminiviridae) is the most common viral disease of chickpea in Pakistan. Two aphid [Aphis craccivora Koch, Myzus persicae (Sulzer)], two leafhopper [Empoasca devastans Distant, Orosius ...
Khalid Pervaiz AKHTAR   +3 more
doaj   +1 more source

The Complete Mitochondrial Genome of Four Hylicinae (Hemiptera: Cicadellidae): Structural Features and Phylogenetic Implications

open access: yesInsects, 2020
To reveal mtgenome characterizations and reconstruct phylogenetic relationships of Hylicinae, the complete mtgenomes of four hylicine species, including Nacolus tuberculatus, Hylica paradoxa, Balala fujiana, and Kalasha nativa, were sequenced and ...
Jiu Tang, Weijian Huang, Yalin Zhang
doaj   +1 more source

Spectral Characterization of the Life Stages and Physiological Responses of Diatraea saccharalis Fabricius (Lepidoptera: Crambidae) Larvae Parasitized by Cotesia flavipes Cameron (Hymenoptera: Braconidae)

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Hyperspectral proximal sensing was used to characterize the life stages and physiological responses of Diatraea saccharalis and to detect parasitism by Cotesia flavipes. Distinct spectral signatures differentiated eggs, larval instars, pupae, and adults, as well as live, dead, and parasitized larvae.
Souradji I. Bachirou   +3 more
wiley   +1 more source

Host plant richness and abundance drive populations of a super‐generalist xylem‐feeding insect

open access: yesEcological Entomology, EarlyView.
Philaenus spumarius abundance was assessed across 93 sites and four habitat types (olive groves, vineyards, meadows, and field margins) within eight heterogeneous agricultural landscapes over the year. In spring, nymph abundance was positively associated with herbaceous plant species richness and vegetation cover, highlighting that even super ...
Francesco Sanna   +3 more
wiley   +1 more source

A New Host Record for the Egg Parasitoid Anagrus nigriventris (Hymenoptera: Mymaridae) of the Corn Leafhopper, Dalbulus maidis (Hemiptera: Cicadellidae) [PDF]

open access: yes, 2006
A survey of the eggs parasitoids of the corn leafhopper, Dalbulus maidis (DeLong & Wolcott) was carried out in Tucumán Province, Argentina. Samples were collected during the summer of 2004-2005 with sentinel eggs.
Luft Albarracin, Erica Beatriz   +2 more
core   +1 more source

Arthropod niche differentiation linked to grazing‐induced sward islets in intensively managed agricultural pasture

open access: yesInsect Conservation and Diversity, EarlyView.
In a given number of samples, grassland sward islets contain more species of arthropods than the surrounding sward. When corrected for abundance, there is no difference in species richness, suggesting that the effect of islets might purely be to concentrate arthropods. The community structure differences indicated by non‐metric multidimensional scaling
Alvin J. Helden   +2 more
wiley   +1 more source

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