Sun Compass Integration of Skylight Cues in Migratory Monarch Butterflies

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Sun Compass Integration of Skylight Cues in Migratory Monarch Butterflies

Migrating monarch butterflies (Danaus plexippus) use a time-compensated sun compass to navigate from eastern North America to their overwintering grounds in central Mexico. Here we describe the neuronal layout of those aspects of the butterfly's central complex likely to establish part of the internal sun compass and find them highly homologous to those of the desert locust. Intracellular recor...

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Do monarch butterflies use polarized skylight for migratory orientation?

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Discordant timing between antennae disrupts sun compass orientation in migratory monarch butterflies

To navigate during their long-distance migration, monarch butterflies (Danaus plexippus) use a time-compensated sun compass. The sun compass timing elements reside in light-entrained circadian clocks in the antennae. Here we show that either antenna is sufficient for proper time compensation. However, migrants with either antenna painted black (to block light entrainment) and the other painted ...

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Antennal circadian clocks coordinate sun compass orientation in migratory monarch butterflies.

During their fall migration, Eastern North American monarch butterflies (Danaus plexippus) use a time-compensated Sun compass to aid navigation to their overwintering grounds in central Mexico. It has been assumed that the circadian clock that provides time compensation resides in the brain, although this assumption has never been examined directly. Here, we show that the antennae are necessary...

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Neural Integration Underlying a Time-Compensated Sun Compass in the Migratory Monarch Butterfly.

Migrating eastern North American monarch butterflies use a time-compensated sun compass to adjust their flight to the southwest direction. Although the antennal genetic circadian clock and the azimuth of the sun are instrumental for proper function of the compass, it is unclear how these signals are represented on a neuronal level and how they are integrated to produce flight control. To addres...

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ژورنال

عنوان ژورنال: Neuron

سال: 2011

ISSN: 0896-6273

DOI: 10.1016/j.neuron.2010.12.025