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IB Seminar - Jason Chapman; AgroEcology Department, Rothamsted Research, UK
Thursday, March 31, 2016, 02:00pm - 03:00pm
This repeat is an exception to the normal repeat pattern
Contact ibfrontdesk@austin.utexas.edu

Chasing the High Fliers: Radar Studies of Migration in Moths

 

Dr Jason Chapman, AgroEcology Department, Rothamsted Research, UK

Billions of insects migrate between winter and summer ranges to take advantage of seasonally-available breeding resources. To travel the distances required (100s km), many insects rely on wind assistance, which they achieve by climbing high above the ground to migrate in fast-moving airstreams. Given their small size and flying height, studying insect migrants is extremely challenging and thus until recently we knew little about their in-flight behaviours and migration patterns. To shed light on these mysteries, I have studied the high-altitude migration of moths with specialized entomological radars. Radar observations demonstrate that migrating moths select the fastest and most favourably-directed winds, resulting in them achieving the same travel speeds and directions as songbirds capable of flying three times faster. The migration strategies employed by these species explain how small, short-lived and relatively slow-flying organisms are able to migrate great distances in seasonally-beneficial directions, and demonstrate that these migrations are highly adaptive.

Relevant Publications:

Chapman et al (2010). Flight orientation behaviors promote optimal migration trajectories in high-flying insects. Science 327: 682-685.

Chapman, Drake and Reynolds (2011). Recent insights from radar studies of insect flight. Annual Review of Entomology 56: 337-356.

Chapman et al (2011). Animal orientation strategies for movement in flows. Current Biology 21: R861-870.

Chapman et al (2012). Seasonal migration to high latitudes results in major reproductive benefits in an insect. PNAS 109: 14924-14929.

Chapman, Reynolds, Wilson (2015) Long-range seasonal migration in insects: mechanisms, evolutionary drivers and ecological consequences. Ecology Letters 18: 287-302.

Chapman et al (2015) Flow detection mechanisms in nocturnally-migrating insects and songbirds. Current Biology 25: R733-R752.

Chapman et al (2016) Adaptive strategies in nocturnally migrating insects and songbirds: contrasting responses to wind. Journal of Animal Ecology 85: 115-124.

Location: NHB 1.720
SEMINAR TITLE: "Chasing the High Fliers: Radar Studies of Migration in Moths " HOST: Jha

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