Results 251 to 260 of about 140,711 (289)
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Insect migration and conservation
2022Understanding which species migrate and why is critical to elucidating their ecology and planning for their conservation yet studying migration in insects is complicated by their small size and the difficulty of tracking individuals over long distances.
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Scientific American, 2017
The article focuses on a 10-year study which found that more than 3.3 trillion insects migrate high above southern Great Britain from 2000-2009 especially in spring and fall. Topics covered include the net movement of bugs by tons of biomass that travel overhead at heights greater than about 500 feet, the overall direction of insect flight, and the ...
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The article focuses on a 10-year study which found that more than 3.3 trillion insects migrate high above southern Great Britain from 2000-2009 especially in spring and fall. Topics covered include the net movement of bugs by tons of biomass that travel overhead at heights greater than about 500 feet, the overall direction of insect flight, and the ...
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How and Why Do Insects Migrate?
Science, 2006Countless numbers of insects migrate within and between continents every year, and yet we know very little about the ultimate reasons and proximate mechanisms that would explain these mass movements. Here we suggest that perhaps the most important reason for insects to migrate is to hedge their reproductive bets.
Holland, Richard +2 more
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1964
The enormous literature written on the subject of insect migrations has already been reviewed in a number of excellent monographs, the most complete — for its day — being the one by FRaenkel (1932), and the most recent, the one by WIlliams (1958).
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The enormous literature written on the subject of insect migrations has already been reviewed in a number of excellent monographs, the most complete — for its day — being the one by FRaenkel (1932), and the most recent, the one by WIlliams (1958).
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Migration Strategies of Insects
Science, 1972Physiological and ecological results from a variety of species are consistent with what seem to be valid general statements concerning insect migration. These are as follows: (i) During migration locomotory functions are enhanced and vegetative functions such as feeding and reproduction are suppressed.
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Migration in Insects: Cost and Strategies
The Journal of Animal Ecology, 19931. An optimal energy partitioning model is used to predict the optimum adult sizes of the soma, gonads and flight apparatus in insects. A comparison of the investment in gonads and lipoidal reserves in winged and unwinged individuals in species from three families of aphids is used to test the predictions and define the cost of developing a flight ...
A.F.G. Dixon, S. Horth, P. Kindlmann
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1995
Migration is a key process in the population dynamics of many insects, including some of the most damaging pests. Multidisciplinary research into the importance of migration, in recent decades, has produced many new insights. This book reviews current understanding of the ecological, behavioural, physiological and genetic bases of insect migration. The
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Migration is a key process in the population dynamics of many insects, including some of the most damaging pests. Multidisciplinary research into the importance of migration, in recent decades, has produced many new insights. This book reviews current understanding of the ecological, behavioural, physiological and genetic bases of insect migration. The
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Active muscle migration during insect metamorphosis
Tissue and Cell, 1984The R1 abdominal retractor muscles of the insect Tenebrio molitor change position during the course of metamorphosis. These muscles detach from the epidermal tendon cells at their anterior ends, and migrate in a posterior direction, parallel to the body axis, to form completely new attachments shortly before adult emergence. Movement is preceded by the
G J, Williams, R R, Shivers, S, Caveney
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Marathon migration: Insects with altitude
New Scientist, 2010Moths and butterflies can live for only weeks, so how do they complete their long migrations?
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NUMERICAL SIMULATION OF THE PATHWAYS OF MIGRATING INSECTS
Insect Science, 1999Abstract Based on boundary layer meteorology and behavioural ecology of insect migration, a numerical TRA model was established. The spatial and temporal resolutions of the standard meteorological data are far insufficient for insect migration studies; so, a one dimension TKE closure scheme (E‐ε scheme) was adopted to simulate the wind and temperature
Baoping Zhai, Xiaoxi Zhang
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