Results 1 to 10 of about 99,754 (297)

Aphid infestations reduce monarch butterfly colonization, herbivory, and growth on ornamental milkweed. [PDF]

open access: yesPLoS ONE, 2023
Anthropogenic disturbance is driving global biodiversity loss, including the monarch butterfly (Danaus plexippus), a dietary specialist of milkweed. In response, ornamental milkweed plantings are increasingly common in urbanized landscapes, and recent ...
Bernadette M Mach   +3 more
doaj   +3 more sources

Power Benefits of High-Altitude Flapping Wing Flight at the Monarch Butterfly Scale. [PDF]

open access: yesBiomimetics (Basel), 2023
The long-range migration of monarch butterflies, extended over 4000 km, is not well understood. Monarchs experience varying density conditions during migration, ranging as high as 3000 m, where the air density is much lower than at sea level.
Kang CK   +5 more
europepmc   +2 more sources

The influence of stimulus history on directional coding in the monarch butterfly brain. [PDF]

open access: yesJ Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2023
The central complex is a brain region in the insect brain that houses a neural network specialized to encode directional information. Directional coding has traditionally been investigated with compass cues that revolve in full rotations and at constant ...
Beetz MJ, El Jundi B.
europepmc   +2 more sources

How the monarch got its spots: Long-distance migration selects for larger white spots on monarch butterfly wings. [PDF]

open access: yesPLoS One, 2023
Elucidating the adaptations that promote flight in animals can aid the understanding of evolution and species divergence, and/or provide inspiration for aerospace engineering and the design of better aerial vehicles.
Davis AK   +4 more
europepmc   +2 more sources

Monarch Butterfly Ecology, Behavior, and Vulnerabilities in North Central United States Agricultural Landscapes. [PDF]

open access: yesBioscience, 2022
The North American monarch butterfly (Danaus plexippus) is a candidate species for listing under the Endangered Species Act. Multiple factors are associated with the decline in the eastern population, including the loss of breeding and foraging habitat ...
Grant TJ   +10 more
europepmc   +2 more sources

History of colonisation and updated distribution of the Monarch butterfly Danaus plexippus (Linnaeus, 1758) and its hostplants in mainland Portugal, Azores and Madeira [PDF]

open access: yesNota Lepidopterologica, 2023
The first observations of the Monarch butterfly (Danaus plexippus) in Iberia date from 1886, although breeding records emerged almost a century later: 1960 in Spain, 1980s–1990s in Madeira and Azores, and 2003 in mainland Portugal.
Luís Palma   +3 more
doaj   +4 more sources

Weighting of Celestial and Terrestrial Cues in the Monarch Butterfly Central Complex. [PDF]

open access: yesFront Neural Circuits, 2022
Monarch butterflies rely on external cues for orientation during their annual long-distance migration from Northern US and Canada to Central Mexico. These external cues can be celestial cues, such as the sun or polarized light, which are processed in the
Nguyen TAT   +4 more
europepmc   +2 more sources

TRITHORAX-dependent arginine methylation of HSP68 mediates circadian repression by PERIOD in the monarch butterfly. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Significance Circadian repression drives the transcriptional feedback loops that keep circadian (∼24-h) time and synchronize an animal’s physiology and behavior to the daily environmental changes.
Zhang Y   +4 more
europepmc   +2 more sources

Effects on Monarch Butterfly Larvae (Lepidoptera: Danaidae) After Continuous Exposure to Cry1Ab-Expressing Corn During Anthesis [PDF]

open access: green, 2004
Effects on monarch butterfly, Danaus plexippus L., after continuous exposure of larvae to natural deposits of Bacillus thuringiensis (Bt) and non-Bt pollen on milkweed, were measured in five studies.
Anderson, Patricia   +8 more
core   +4 more sources

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