Results 1 to 10 of about 17,379 (258)

Monarch butterfly conservation through male germplasm cryopreservation [PDF]

open access: yesScientific Reports
Monarch butterfly (Danaus plexippus L.) populations have declined in North America. The International Union for Conservation of Nature (IUCN) recently classified the species as endangered, sparking public concern and conservation efforts. Our approach to
Courtney C. Grula   +2 more
doaj   +4 more sources

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   +2 more sources

Cloudlet Scheduling by Hybridized Monarch Butterfly Optimization Algorithm [PDF]

open access: goldJournal of Sensor and Actuator Networks, 2019
Cloud computing technology enables efficient utilization of available physical resources through the virtualization where different clients share the same underlying physical hardware infrastructure. By utilizing the cloud computing concept, distributed,
Ivana Strumberger   +3 more
doaj   +2 more sources

Uptake and toxicity of clothianidin to monarch butterflies from milkweed consumption [PDF]

open access: goldPeerJ, 2020
Recent concern for the adverse effects from neonicotinoid insecticides has centered on risk for insect pollinators in general and bees specifically. However, natural resource managers are also concerned about the risk of neonicotinoids to conservation ...
Timothy A. Bargar   +2 more
doaj   +3 more sources

A Novel Monarch Butterfly Optimization with Global Position Updating Operator for Large-Scale 0-1 Knapsack Problems [PDF]

open access: goldMathematics, 2019
As a significant subset of the family of discrete optimization problems, the 0-1 knapsack problem (0-1 KP) has received considerable attention among the relevant researchers.
Yanhong Feng, Xu Yu, Gai-Ge Wang
doaj   +2 more sources

Stimulus-dependent orientation strategies in monarch butterflies [PDF]

open access: goldJournal of Experimental Biology, 2021
ABSTRACT Insects are well known for their ability to keep track of their heading direction based on a combination of skylight cues and visual landmarks. This allows them to navigate back to their nest, disperse throughout unfamiliar environments, as well as migrate over large distances between their breeding and non-breeding habitats.
Myriam Franzke   +5 more
  +8 more sources

Larval pesticide exposure impacts monarch butterfly performance. [PDF]

open access: yesSci Rep, 2020
AbstractThe long-term decline of monarch butterflies has been attributed to loss of their milkweed (Asclepias sp.) host-plants after the introduction of herbicide-tolerant crops. However, recent studies report pesticide residues on milkweed leaves that could act as a contributing factor when ingested as part of their larval diet.
Olaya-Arenas P   +3 more
europepmc   +4 more sources

Characterizing New Wintering Sites for Monarch Butterfly Colonies in Sierra Nevada, Mexico [PDF]

open access: yesInsects, 2020
Every year, Danaus plexippus (Linnaeus, 1758) travels to hibernate in oyamel fir forests located between the limits of the states of Michoacán and Mexico in Mexico.
Ramiro Pérez-Miranda   +2 more
doaj   +2 more sources

Evaluating an Alleged Mimic of the Monarch Butterfly: Neophasia (Lepidoptera: Pieridae) Butterflies are Palatable to Avian Predators [PDF]

open access: yesInsects, 2018
Some taxa have adopted the strategy of mimicry to protect themselves from predation. Butterflies are some of the best representatives used to study mimicry, with the monarch butterfly, Danaus plexippus (Lepidoptera: Nymphalidae) a well-known model.
Dale A. Halbritter   +4 more
doaj   +2 more sources

Impact of climate change on the habitat range of monarch butterfly (Danaus plexippus) [PDF]

open access: yesScientific Reports
Danaus plexippus L. (Linnaeus, 1758) (Lepidoptera: Nymphalidae) is well-known and captivating migratory insect that cannot overwinter in temperate climates.
Sanad H. Ragab   +2 more
doaj   +2 more sources

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