Tag

Heliconius

All articles tagged with #heliconius

science1 month ago•2 min saved

Tropical butterflies age slowly, revealing clues to longevity

Researchers studying tropical Heliconius butterflies found some species live much longer and age more slowly than close relatives. Heliconius hewitsoni can live up to about 348 days, while Dione juno may only reach 14 days, demonstrating dramatic lifespan differences among near relatives. Grip-strength tests showed older Heliconius retain function like younger ones, unlike Dryas iulia, which ages normally. Although pollen feeding was suspected to drive longevity, removing pollen from Heliconius hecale's diet did not erase the longevity advantage, suggesting intrinsic biological factors also govern aging. The findings offer a rare natural comparison to understand aging biology in insects.

via BBC Wildlife Magazine|

#aging #butterflies #heliconius

science2 months ago•6 min saved

Long-Lived Heliconius Butterflies Reveal Hidden Longevity Tricks

Some tropical Heliconius butterflies live up to 348 days, far longer than relatives, with pollen-rich diets contributing to longer lifespans but not fully explaining the longevity. The researchers found evidence of evolved anti-aging mechanisms in these butterflies, suggesting they could serve as model organisms for human aging research; even without pollen, several species remain long-lived. The study used a grip-strength test called The Pullinator to assess age-related decline, highlighting nutrition and intrinsic longevity adaptations across the genus.

via CNN|

#aging #heliconius #longevity

science2 months ago•4 min saved

Pollen-Powered Lifespans: Butterflies Reveal Hidden Longevity Secrets

Researchers mapped maximum lifespans across Heliconiini butterflies and found remarkable variation, with pollen-fed species such as Heliconius living longer (up to about 348 days) than non-pollen eaters; Myscelia cyaniris records the longest at 380 days. The study suggests heritable factors and pollen-derived nutrients may boost aging resistance and energy, though diet interacts with genetics and sample size; results published in Nature Communications and highlight the complex biology of aging in closely related butterflies.

via ScienceAlert|

#aging #butterflies #heliconius

biology3 years ago•3 min saved

Unveiling the Colorful World of Butterflies: Biologists' Discovery

Biologists at the University of California, Irvine have discovered that sexually dimorphic vision in butterflies, where females perceive ultraviolet color while males see light and dark, is caused by a vision gene's jump onto a sex chromosome. This finding, observed in the Heliconius butterfly genus, is the first known instance of this genetic change causing sexually dimorphic vision. The study highlights the complexities of genetic sequencing and the importance of manual validation. The vision difference may explain why females and males of some butterfly species feed on different types of flowers.

via Phys.org|

#biology #butterfly #genetics

science3 years ago•5 min saved

"Fluttering Minds: How Butterflies Master Spatial Learning"

Researchers have discovered that Heliconius butterflies exhibit spatial learning, providing the first experimental evidence of such abilities in any butterfly or moth species. These butterflies can learn and memorize spatial information on large scales, which is important for their foraging behavior known as traplining. The study suggests that complex learning skills, including the use of spatial information, may be more common in insects than previously recognized. The findings highlight the possibility of widespread cognitive abilities in insects and open up avenues for further research on the mechanisms of navigation in butterflies.

via Neuroscience News|

#butterflies #heliconius #insects

science3 years ago•3 min saved

Butterflies' Remarkable Spatial Memory Unveiled

A new study has found that Heliconius butterflies are capable of spatial learning, providing the first experimental evidence of this ability in any butterfly or moth species. The research suggests that complex learning skills, such as the use of spatial information, may be more common in insects than previously thought. The study conducted spatial learning experiments at different scales and plans to further investigate the cognitive abilities and navigation mechanisms of Heliconius butterflies.

via Phys.org|

#butterflies #heliconius #insects