Juvenile hormone regulation of longevity in the migratory monarch butterfly
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چکیده
منابع مشابه
Tracking climate impacts on the migratory monarch butterfly.
Understanding the impacts of climate on migratory species is complicated by the fact that these species travel through several climates that may be changing in diverse ways throughout their complete migratory cycle. Most studies are not designed to tease out the direct and indirect effects of climate at various stages along the migration route. We assess the impacts of spring and summer climate...
متن کاملLinking the continental migratory cycle of the monarch butterfly to understand its population decline
Threats to several of the world’s great animal migrations necessitate a research agenda focused on identifying drivers of their population dynamics. The monarch butterfly is an iconic species whose continental migratory population in eastern North America has been declining precipitously. Recent analyses have linked the monarch decline to reduced abundance of milkweed host plants in the USA cau...
متن کاملNeural 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...
متن کاملNeural integration underlying a time - compensated sun compass in the migratory monarch butterfly Supplementary Material
This function resembles a potential, such that any point on the potential (particular choice of !!and !) will evolve to the minimum point. The function is nonnegative and thus has a minimum at 0, when !! = !!. Showing that the balanced state !!" is a unique fixed point, in the interval !! ∈ (135,315) for each !! ∈ ! [0,12], is equivalent to showing that the function ! vanishes on ! = !!" and po...
متن کاملNeurobiology of Monarch Butterfly Migration.
Studies of the migration of the eastern North American monarch butterfly (Danaus plexippus) have revealed mechanisms behind its navigation. The main orientation mechanism uses a time-compensated sun compass during both the migration south and the remigration north. Daylight cues, such as the sun itself and polarized light, are processed through both eyes and integrated through intricate circuit...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2001
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2001.1765