Results 41 to 50 of about 95,061 (143)

Aseasonal, undirected migration in insects: 'Invisible' but common

open access: yesiScience
Summary: Many insect pests are long-distance migrants, moving from lower latitudes where they overwinter to higher latitudes in spring to exploit superabundant, but seasonally ephemeral, host crops.
Thomas W. Sappington
doaj   +1 more source

Determinants of natal dispersal distances in North American birds

open access: yesEcology and Evolution, 2023
Natal dispersal—the movement from birth site to first breeding site—determines demographic and population genetic dynamics and has important consequences for ecological and evolutionary processes.
Jonathan J. Chu, Santiago Claramunt
doaj   +1 more source

The challenge of measuring mosquito flight performance: going beyond sterile insect technique and into transgenic and gene drive-based approaches

open access: yesOpen Biology
Invasive insects inflict global costs of more than 70 billion USD annually by destroying crops and spreading disease-causing pathogens. Sterile insect technique (SIT), an insect population control method, involves the irradiation or chemical ...
Paola Najera   +4 more
doaj   +1 more source

Effects of climate variation on bird escape distances modulate community responses to global change

open access: yesScientific Reports, 2021
Climate and land use are rapidly changing environmental conditions. Behavioral responses to such global perturbations can be used to incorporate interspecific interactions into predictive models of population responses to global change. Flight initiation
M. Díaz   +9 more
doaj   +1 more source

Laterality and flight: concurrent tests of side-bias and optimality in flying tree swallows. [PDF]

open access: yesPLoS ONE, 2008
Behavioural side-bias occurs in many vertebrates, including birds as a result of hemispheric specialization and can be advantageous by improving response times to sudden stimuli and efficiency in multi-tasking.
James T Mandel   +3 more
doaj   +1 more source

Direction of approach by predators and flight initiation distance of urban and rural populations of birds [PDF]

open access: yesBehavioral Ecology, 2014
Significant fitness costs of predation have resulted in the evolution of flight, which may be costly because not all attacks are successful. Some perceived attacks may not actually be attacks, resulting in physiological and behavioral costs of monitoring.
Anders Pape Møller, Piotr Tryjanowski
openaire   +2 more sources

A Two-Stage Co-Evolution Multi-Objective Evolutionary Algorithm for UAV Trajectory Planning

open access: yesApplied Sciences
With the increasing complexity of unmanned aerial vehicle (UAV) missions, single-objective optimization for UAV trajectory planning proves inadequate in handling multiple conflicting objectives.
Gang Huang   +4 more
doaj   +1 more source

Migratory flight of insect pests within a year-round distribution: European corn borer as a case study

open access: yesJournal of Integrative Agriculture, 2018
Insect migratory flight differs fundamentally from most other kinds of flight behavior, in that it is non-appetitive. The adult is not searching for anything, and migratory flight is not terminated by encounters with potential resources.
Thomas W. Sappington
doaj   +1 more source

Heavy rainfall triggers increased nocturnal flight in desert populations of the Pacific black duck (Anas superciliosa) [PDF]

open access: yesScientific Reports, 2017
AbstractUnderstanding of avian nocturnal flight comes mainly from northern hemisphere species in seasonal temperate ecosystems where nocturnal flight is often precisely timed and entrained by annual photoperiod. Here we investigate patterns of nocturnal flight in waterbirds of Australian desert ecosystems that fly considerable distances to find ...
J. F. McEvoy   +3 more
openaire   +4 more sources

Flight initiation distance is repeatable and geographically flexible in greylag geese Anser anser

open access: yesJournal of Avian Biology
The decision to flee from an approaching threat represents a trade‐off between the costs and benefits of flight. In research to date, particular interest has been given to the effects of urbanisation on predator escape behaviour.
Andrew C. Katsis   +7 more
doaj   +1 more source

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