Results 21 to 30 of about 81,279 (303)
Reptilian Physiology and the Flight Capacity of Archaeopteryx [PDF]
Evolution, 1991 Current scenarios frequently interpret the Late Jurassic bird Archaeopteryx as having had an avian-type physiology and as having been capable of flapping flight, but only from "the trees downward." It putatively lacked capacity for takeoff and powered flight from the ground upward.
openaire +2 more sources
Mechanisms and Consequences of Partial Migration in Insects
Frontiers in Ecology and Evolution, 2019 Partial migration, where a proportion of a population migrates, while other individuals remain resident, is widespread across most migratory lineages.
Myles H. M. Menz +12 more
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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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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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, 2020 Mountain pine beetle (Dendroctonus ponderosae Coleoptera: Curculionidae: Scolytinae) is a major pest of pine (Pinaceae) in western North America. Mountain pine beetle has an obligatory dispersal phase during which beetles fly in search of new hosts to ...
Wijeranthna, Asha, Evenden, Maya
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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
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Flexibility in strategic flight planning [PDF]
, 2021 A deterministic model that indicates flexibility of flights at the strategic level (up to 6 months ahead) taking into account changing airspace configurations and capacity is formulated. Flexibility is quantified by means of time windows (TWs).
Corolli, L. +3 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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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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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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