scholarly journals Migratory flight behaviour of the pollen beetleMeligethes aeneus

2017 ◽  
Vol 73 (6) ◽  
pp. 1076-1082 ◽  
Author(s):  
Alice L Mauchline ◽  
Samantha M Cook ◽  
Wilf Powell ◽  
Jason W Chapman ◽  
Juliet L Osborne
Keyword(s):  
Flight Behaviour ◽  
Migratory Flight

Comparative flight behaviour of migrating hawks studied with tracking radar during autumn in central New York

1985 ◽  
Vol 63 (4) ◽  
pp. 755-761 ◽  
Author(s):  
Paul Kerlinger ◽  
Verner P. Bingman ◽  
Kenneth P. Able
Keyword(s):  
New York ◽  
Wind Direction ◽  
Flight Path ◽  
Autumn Migration ◽  
Falco Sparverius ◽  
Flight Behaviour ◽  
Migratory Flight ◽  
Central New York ◽  
Accipiter Striatus ◽  
Tracking Radar

Tracking radar with simultaneous visual observations was employed to study the flight behaviour of nine species of hawks during autumn migration, 1978–1979, in central New York. The predominant mode of flight for all species was thermal soaring and interthermal gliding. Although most species were seen in small flocks at some time, only Broad-winged Hawks (Buteo platypterus) could be considered flocking migrants, with most migrating in flocks < 40 individuals. Altitude of flight increased through the day as convective depth developed, with approximately 85% of all individuals flying below 1000 m. Climb rates of individuals soaring in thermals averaged 3 ms−1 and were greater than previously reported for larger soaring species. Short- to medium-distance migrants (Accipiter striatus, Falco sparverius) tended to fly at lower altitudes than longer distance migrants. The direction realized during thermal soaring was positively related to wind direction and was oriented to the southeast, a function of the prevailing northwest winds. Orientation strategy was considered to be a compromise between drift and complete compensation, resulting in an elliptical migratory flight path, probably shaped by prevailing northwest winds. Such a compromise promotes a faster and more energetically efficient migration.

The migration of Nilaparvata lugens (stål) (delphacidae) and other hemiptera associated with rice during the dry season in the Philippines: a study using radar, visual observations, aerial netting and ground trapping

1987 ◽  
Vol 77 (1) ◽  
pp. 145-169 ◽  
Author(s):  
J. R. Riley ◽  
D. R. Reynolds ◽  
R. A. Farrow
Keyword(s):  
Abundant Species ◽  
Nilaparvata Lugens ◽  
The Philippines ◽  
Dry Season ◽  
Flight Behaviour ◽  
Irrigated Rice ◽  
Migratory Flight ◽  
X Band ◽  
Nilaparvata Lugens Stål ◽  
Visual Observations

AbstractThe migratory flight behaviour of Nilaparvata lugens (Stål), other delphacid and cicadellid pests of rice and some of their heteropteran predators was investigated during the dry-season crop in an irrigated rice-growing area of the Philippines. A combination of radar (including an X-band and a newly-developed Q-band system (8 mm wavelength)), aerial netting, ground trapping and visual observations was used to determine diel changes in aerial density and composition of arthropods in flight over the study site. The most abundant migrant caught in the aerial nets was Cyrtorhinus lividipennis Reuter (a mirid predator of N. lugens), with Nephotettix spp. and Nilaparvata lugens the next most abundant species. Flight activity in all migrants was found to be very largely confined to periods of about 30 min at dusk and dawn, with minimal activity at other times of the day and night. Migration distance in the dusk flight was generally limited to 6–30 km, depending on wind speed, and the dawn migration covered shorter distances due to the lighter winds. Small numbers of rice cicadellids and delphacids including N. lugens were occasionally detected later in the night, and these may have had the potential to migrate longer distances.

scholarly journals Higher flight activity in the offspring of migrants compared to residents in a migratory insect

2018 ◽  
Vol 285 (1881) ◽  
pp. 20172829 ◽  
Author(s):  
Laura J. Dällenbach ◽  
Alexandra Glauser ◽  
Ka S. Lim ◽  
Jason W. Chapman ◽  
Myles H. M. Menz
Keyword(s):  
Genetic Factors ◽  
Partial Migration ◽  
Flight Behaviour ◽  
Episyrphus Balteatus ◽  
Flight Duration ◽  
Migratory Flight ◽  
Tethered Flight ◽  
Flight Mills ◽  
Energy Conserving ◽  
Underlying Mechanisms

Migration has evolved among many animal taxa and migratory species are found across all major lineages. Insects are the most abundant and diverse terrestrial migrants, with trillions of animals migrating annually. Partial migration, where populations consist of resident and migratory individuals, is ubiquitous among many taxa. However, the underlying mechanisms are relatively poorly understood and may be driven by physiological, behavioural or genetic variation within populations. We investigated the differences in migratory tendency between migratory and resident phenotypes of the hoverfly, Episyrphus balteatus , using tethered flight mills. Further, to test whether migratory flight behaviour is heritable and to disentangle the effects of environment during development, we compared the flight behaviour of laboratory-reared offspring of migrating, overwintering and summer animals. Offspring of migrants initiated more flights than those of resident individuals. Interestingly, there were no differences among wild-caught phenotypes with regard to number of flights or total flight duration. Low activity in field-collected migrants might be explained by an energy-conserving state that migrants enter into when under laboratory conditions, or a lack of suitable environmental cues for triggering migration. Our results strongly suggest that flight behaviour is heritable and that genetic factors influence migratory tendency in E. balteatus . These findings support the growing evidence that genetic factors play a role in partial migration and warrant careful further investigation.

scholarly journals A minimal 3D model of mosquito flight behaviour around the human baited bed net

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Jeff Jones ◽  
Gregory P D Murray ◽  
Philip J McCall
Keyword(s):  
Spatial Scales ◽  
Video Tracking ◽  
Sub Saharan Africa ◽  
Bed Nets ◽  
State Transitions ◽  
Bed Net ◽  
Flight Behaviour ◽  
Individual Agent ◽  
Host Seeking ◽  
Mosquito Behaviour

Abstract Background Advances in digitized video-tracking and behavioural analysis have enabled accurate recording and quantification of mosquito flight and host-seeking behaviours, facilitating development of individual (agent) based models at much finer spatial scales than previously possible. Methods Quantified behavioural parameters were used to create a novel virtual testing model, capable of accurately simulating indoor flight behaviour by a virtual population of host-seeking mosquitoes as they interact with and respond to simulated stimuli from a human-occupied bed net. The model is described, including base mosquito behaviour, state transitions, environmental representation and host stimulus representation. Results In the absence of a bed net and human host bait, flight distribution of the model population was relatively uniform throughout the arena. Introducing an unbaited untreated bed net induced a change in distribution with an increase in landing events on the net surface, predominantly on the sides of the net. Adding the presence of a simulated human bait dramatically impacted flight distribution patterns, exploratory foraging and, the number and distribution of landing positions on the net, which were determined largely by the orientation of the human within. The model replicates experimental results with free-flying living mosquitoes at human-occupied bed nets, where contact occurs predominantly on the top surface of the net. This accuracy is important as it quantifies exposure to the lethal insecticide residues that may be unique to the net roof (or theoretically any other surface). Number of net contacts and height of contacts decreased with increasing attractant dispersal noise. Conclusions Results generated by the model are an accurate representation of actual mosquito behaviour recorded at and around a human-occupied bed net in untreated and insecticide-treated nets. This fine-grained model is highly flexible and has significant potential for in silico screening of novel bed net designs, potentially reducing time and cost and accelerating the deployment of new and more effective tools for protecting against malaria in sub-Saharan Africa.

scholarly journals Natural barriers: waterfall transit by small flying animals

2020 ◽  
Vol 7 (8) ◽  
pp. 201185
Author(s):  
Victor M. Ortega-Jimenez ◽  
Eva C. Herbst ◽  
Michelle S. Leung ◽  
Robert Dudley
Keyword(s):  
Complex Dynamics ◽  
Sister Group ◽  
The Body ◽  
Heterogeneous Structure ◽  
Flight Behaviour ◽  
Physical Constraints ◽  
Physical Barriers ◽  
Translational Speed ◽  
Geomorphological Features ◽  
Stroke Amplitude

Waterfalls are conspicuous geomorphological features with heterogeneous structure, complex dynamics and multiphase flows. Swifts, dippers and starlings are well-known to nest behind waterfalls, and have been reported to fly through them. For smaller fliers, by contrast, waterfalls seem to represent impenetrable barriers, but associated physical constraints and the kinematic responses of volant animals during transit are unknown. Here, we describe the flight behaviour of hummingbirds (the sister group to the swifts) and of various insect taxa as they fly through an artificial sheet waterfall. We additionally launched plastic balls at different speeds at the waterfall so as to assess the inertial dependence of sheet penetration. Hummingbirds were able to penetrate the waterfall with reductions in both their translational speed, and stroke amplitude. The body tilted more vertically and exhibited greater rotations in roll, pitch and yaw, along with increases in tail spread and pitch. The much smaller plastic balls and some flies moving at speeds greater than 2.3 m s −1 and 1.6 m s −1 , respectively, also overcame effects of surface tension and water momentum and passed through the waterfall; objects with lower momentum, by contrast, entered the sheet but then fell along with the moving water. Waterfalls can thus represent impenetrable physical barriers for small and slow animal fliers, and may also serve to exclude both predators and parasites from nests of some avian taxa.

scholarly journals Genomewide transcriptional signatures of migratory flight activity in a globally invasive insect pest

2015 ◽  
Vol 24 (19) ◽  
pp. 4901-4911 ◽  
Author(s):  
Christopher M. Jones ◽  
Alexie Papanicolaou ◽  
George K. Mironidis ◽  
John Vontas ◽  
Yihua Yang ◽  
...  
Keyword(s):  
Insect Pest ◽  
Flight Activity ◽  
Invasive Insect ◽  
Migratory Flight
Sign in / Sign up

Export Citation Format

Share Document