Results 31 to 40 of about 227,788 (286)

Measurement of insect mass based on ellipsoid scattering model

open access: yesThe Journal of Engineering, 2019
Insect migration influences population dynamics, provides ecosystem services, causes heavy crop damages and spreads diseases. The identification of insect migrants is critically important for the study of insect migration.
Shaoyang Kong   +3 more
doaj   +1 more source

The ‘migratory connectivity’ concept, and its applicability to insect migrants

open access: yesMovement Ecology, 2020
Migratory connectivity describes the degree of linkage between different parts of an animal’s migratory range due to the movement trajectories of individuals.
Boya Gao   +5 more
doaj   +1 more source

Insights Into Insect Vector Transmission and Epidemiology of Plant-Infecting Fijiviruses

open access: yesFrontiers in Microbiology, 2021
Viruses in genus Fijivirus (family Reoviridae) have caused serious damage to rice, maize and sugarcane in American, Asian, European and Oceanian countries, where seven plant-infecting and two insect-specific viruses have been reported.
Lu Zhang   +3 more
doaj   +1 more source

Possible source and migration pathway for early-summer immigrants of the oriental armyworm, Mythimna separata, arriving in northern Japan

open access: yesJournal of Integrative Agriculture, 2023
The first generation of the oriental armyworm, Mythimna separata (Walker), arrives every year in northern Japan in mainly late May to early June. Analyses of weather maps suggested that this moth's immigration source could be eastern China, but the ...
Akira OTUKA   +2 more
doaj   +1 more source

Detecting Invasive Insects with Unmanned Aerial Vehicles

open access: yes, 2019
A key aspect to controlling and reducing the effects invasive insect species have on agriculture is to obtain knowledge about the migration patterns of these species.
Leskey, Tracy   +6 more
core   +1 more source

Pathogenicity of indigenous entomopathogenic nematodes from Benin against mango fruit fly (Bactrocera dorsalis) under laboratory conditions [PDF]

open access: yes, 2018
Bactrocera dorsalis fruit fly is the economically most significant tephritid pest species on Mango, Mangifera indica L., in Benin, and entomopathogenic nematodes (EPNs) represent good candidates for its control in the soil.
Afouda, Leonard   +4 more
core   +2 more sources

Russian wheat aphids (Diuraphis noxia) in China: Native range expansion or recent introduction? [PDF]

open access: yes, 2012
In this study, we explore the population genetics of the Russian wheat aphid (RWA) (Diuraphis noxia), one of the world’s most invasive agricultural pests, in north-western China.
Abbot   +85 more
core   +3 more sources

Tracking butterfly flight in the field from an unmanned aerial vehicle (UAV): a methodological proof of principle

open access: yesPeer Community Journal
Tracking and understanding the movements of animals in the wild is a fast-growing area of research, known as movement ecology. However, tracking small animals such as flying insects, which cannot easily carry an electronic tag, remains challenging as ...
de Margerie, Emmanuel, Monmasson, Kyra
doaj   +1 more source

Causal Analysis of a Migration of the Snout Butterfly, Libytheana bachmanii Iarvata (Strecker) (Libytheidae) [PDF]

open access: yes, 1983
Observation of a massive migration of the snout butterfly, Libytheana bachmanii larvata (Strecker), in central Texas in 1971 is described. An association of peak migration periods and periodic precipitation episodes is believed to be causal in nature ...
Neck, Raymond W.
core   +1 more source

Seasonal Trends in Movement Patterns of Birds and Insects Aloft Simultaneously Recorded by Radar

open access: yesRemote Sensing, 2021
Airspace is a key but not well-understood habitat for many animal species. Enormous amounts of insects and birds use the airspace to forage, disperse, and migrate.
Xu Shi   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy