Articles with "monarch butterfly" as a keyword



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Denoising Brain Images with the Aid of Discrete Wavelet Transform and Monarch Butterfly Optimization with Different Noises

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Published in 2018 at "Journal of Medical Systems"

DOI: 10.1007/s10916-018-1069-4

Abstract: The aim of this paper is to denoise the high noise density image proficiently with minimal computation cost using various techniques. This paper proposes an approach for image denoising based on Discrete Wavelet Transform (DWT)… read more here.

Keywords: wavelet transform; butterfly optimization; optimization; monarch butterfly ... See more keywords
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Solving 0–1 knapsack problems by chaotic monarch butterfly optimization algorithm with Gaussian mutation

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Published in 2018 at "Memetic Computing"

DOI: 10.1007/s12293-016-0211-4

Abstract: Recently, inspired by the migration behavior of monarch butterflies in nature, a metaheuristic optimization algorithm, called monarch butterfly optimization (MBO), was proposed. In the present study, a novel chaotic MBO algorithm (CMBO) is proposed, in… read more here.

Keywords: monarch; butterfly optimization; monarch butterfly; optimization ... See more keywords
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Improving monarch butterfly optimization through simulated annealing strategy

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Published in 2020 at "Journal of Ambient Intelligence and Humanized Computing"

DOI: 10.1007/s12652-020-01702-y

Abstract: Currently, a novel of meta-heuristic algorithm called monarch butterfly optimization (MBO) is presented for solving machine learning and continuous optimization problems. It has been proved experimentally that MBO is superior to artificial bee colony algorithm… read more here.

Keywords: algorithm; butterfly optimization; monarch butterfly; optimization ... See more keywords
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Multiobjective hybrid monarch butterfly optimization for imbalanced disease classification problem

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Published in 2020 at "International Journal of Machine Learning and Cybernetics"

DOI: 10.1007/s13042-019-01047-9

Abstract: Datasets obtained from the real world are far from balanced, particularly for disease datasets, since such datasets are usually highly skewed having a few minority classes apart from one or more prominent majority classes. In… read more here.

Keywords: disease datasets; butterfly optimization; monarch butterfly; multiobjective hybrid ... See more keywords
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Attractiveness to highly informative flowers and absence of conditioning in the southern monarch butterfly

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Published in 2020 at "Behavioural Processes"

DOI: 10.1016/j.beproc.2020.104120

Abstract: Flower cues serve as information that improves foraging by flower visitors. These cues may act in a synergic, redundant or complementary way. We examined how the integration of visual cues affects foraging in the southern… read more here.

Keywords: highly informative; southern monarch; less informative; monarch butterfly ... See more keywords
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Grassland disturbance increases monarch butterfly oviposition and decreases arthropod predator abundance

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Published in 2019 at "Biological Conservation"

DOI: 10.1016/j.biocon.2019.03.007

Abstract: Abstract Many species of conservation concern depend on disturbance to create or maintain suitable habitat. We evaluated effects of disturbance on the eastern migratory monarch butterfly (Danaus plexippus L.), which has declined markedly in recent… read more here.

Keywords: predator abundance; grassland disturbance; disturbance; monarch butterfly ... See more keywords
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TRITHORAX-dependent arginine methylation of HSP68 mediates circadian repression by PERIOD in the monarch butterfly

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Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2115711119

Abstract: 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. Although PERIOD (PER) is known to initiate transcriptional repression by… read more here.

Keywords: methylation; monarch butterfly; circadian repression; repression ... See more keywords
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Monarch Butterfly Ecology, Behavior, and Vulnerabilities in North Central United States Agricultural Landscapes

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Published in 2022 at "Bioscience"

DOI: 10.1093/biosci/biac094

Abstract: Abstract 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… read more here.

Keywords: ecology; monarch butterfly; pesticide; united states ... See more keywords
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Ommochrome Wing Pigments in the Monarch Butterfly Danaus plexippus (Lepidoptera: Nymphalidae)

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Published in 2022 at "Journal of Insect Science"

DOI: 10.1093/jisesa/ieac076

Abstract: Abstract Monarch butterflies (Danaus plexippus) use bright orange coloration to warn off predators as well as for sexual selection. Surprisingly the underlying pigment compounds have not been previously characterized. We used LCMS and fragmentation MS… read more here.

Keywords: wing pigments; pigments monarch; monarch butterfly; danaus plexippus ... See more keywords
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Milkweed restoration in the Midwest for monarch butterfly recovery: estimates of milkweeds lost, milkweeds remaining and milkweeds that must be added to increase the monarch population

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Published in 2017 at "Insect Conservation and Diversity"

DOI: 10.1111/icad.12198

Abstract: The loss of milkweeds in corn and soybean fields in the Midwest due to herbicide use has been implicated in the decline of the monarch butterfly population. In order to gauge the magnitude of the… read more here.

Keywords: milkweeds lost; monarch; monarch butterfly; milkweed restoration ... See more keywords
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Distance Diminishes the Effect of Deltamethrin Exposure on the Monarch Butterfly, Danaus plexippus.

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Published in 2020 at "Journal of the American Mosquito Control Association"

DOI: 10.2987/20-6927.1

Abstract: The monarch butterfly, Danaus plexippus (Lepidoptera: Nymphalidae), is threatened by substantial loss of habitat, extreme weather events linked to global climate change, and nontarget impacts of broad-spectrum insecticides. To investigate the impact of chronic ingestion… read more here.

Keywords: plexippus; danaus plexippus; monarch; butterfly danaus ... See more keywords