Results 31 to 40 of about 539,123 (325)
Rangifer, 2002 The highly efficient endectocide ivermectin is used to reduce the burden of parasites in many semidomestic reindeer herds in northern Fennoscandia. In the autumn of 1995 and 1996 all reindeer on the island of Silda (42 km2) were treated with ivermectin ...
Arne C. Nilssen +2 more
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Effects of Increased Flight on the Energetics and Life History of the Butterfly Speyeria mormonia. [PDF]
PLoS ONE, 2015 Movement uses resources that may otherwise be allocated to somatic maintenance or reproduction. How does increased energy expenditure affect resource allocation?
Kristjan Niitepõld, Carol L Boggs
doaj +1 more source
European Journal of Entomology, 2019 Movements are involved in several routine processes and may scale up to important ecological processes such as dispersal. However, movement is affected by a wealth of factors including flight capacity and behavioural traits. Both frequently differ in the
Elisabeth REIM +2 more
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Avian Research, 2020 Background Unlike resident birds, migratory birds are generally believed to have evolved to enhance flight efficiency; however, direct evidence is still scarce due to the difficulty of measuring the flight speed and mechanical power.
Yang Wang +8 more
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Oxidative stress in endurance flight: an unconsidered factor in bird migration [PDF]
, 2014 Migrating birds perform extraordinary endurance flights, up to 200 h non-stop, at a very high metabolic rate and while fasting. Such an intense and prolonged physical activity is normally associated with an increased production of reactive oxygen and ...
Costantini, David +3 more
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Flapping before Flight: High Resolution, Three-Dimensional Skeletal Kinematics of Wings and Legs during Avian Development. [PDF]
PLoS ONE, 2016 Some of the greatest transformations in vertebrate history involve developmental and evolutionary origins of avian flight. Flight is the most power-demanding mode of locomotion, and volant adult birds have many anatomical features that presumably help ...
Ashley M Heers +3 more
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Neuromuscular control of aerodynamic forces and moments in the blowfly, Calliphora vicina [PDF]
, 2004 Flies are among the most agile of flying insects, a capacity that ultimately results from their nervous system's control over steering muscles and aerodynamic forces during flight.
Balint, Claire N., Dickinson, Michael H.
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Journal of Integrative Agriculture, 2019 The flight capacity of different ages and sexes of the sycamore lace bug, Corythucha ciliata, was studied at different temperatures using a flight mill system.
Shao-hui LU +4 more
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Comparison of Reproductive and Flight Capacity of Loxostege sticticalis (Lepidoptera: Pyralidae), Developing From Diapause and Non-Diapause Larvae [PDF]
, 2012 The beet webworm, Loxostege sticticalis (L.) (Lepidoptera: Pyralidae), uses both diapause and migration as life history strategies. To determine the role of diapause plays in the population dynamics of L.
Jiang, Xingfu +5 more
core +3 more sources
Identification of genes and gene expression associated with dispersal capacity in the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae) [PDF]
PeerJ, 2021 Dispersal flights by the mountain pine beetle have allowed range expansion and major damage to pine stands in western Canada. We asked what the genetic and transcriptional basis of mountain pine beetle dispersal capacity is.
Victor A. Shegelski +3 more
doaj +2 more sources