Results 21 to 30 of about 4,463 (201)

A Numerical Analysis of Dynamic Flight Stability of Hawkmoth Hovering

open access: yesJournal of Biomechanical Science and Engineering, 2009
A numerical analysis of dynamic flight stability of a hovering hawkmoth is presented. A computational fluid dynamic (CFD) method is used to simulate the unsteady flow about a realistic hawkmoth model and to compute the aerodynamic derivatives of the ...
Na GAO, Hikaru AONO, Hao LIU
doaj   +1 more source

Achromatic Cues Are Important for Flower Visibility to Hawkmoths and Other Insects

open access: yesFrontiers in Ecology and Evolution, 2022
Studies on animal colour vision typically focus on the chromatic aspect of colour, which is related to the spectral distribution, and disregard the achromatic aspect, which is related to the intensity (“brightness”) of a stimulus.
Casper J. van der Kooi, Almut Kelber
doaj   +1 more source

A new Ypsilopus (Orchidaceae, Angraecinae) from Zimbabwe and notes on the parallel evolution of extreme column exsertion in African angraecoids [PDF]

open access: yesPlant Ecology and Evolution, 2023
Background and aims – A preliminary review of hawkmoth-pollinated angraecoids from Africa unveiled a remarkable case of parallel evolution of extreme column exsertion between the two species formerly classified in in the defunct genus Barombia.
João Farminhão, Phillip J. Cribb
doaj   +3 more sources

Discovering useful parts for pose estimation in sparsely annotated datasets [PDF]

open access: yes, 2016
Our work introduces a novel way to increase pose estimation accuracy by discovering parts from unannotated regions of training images. Discovered parts are used to generate more accurate appearance likelihoods for traditional part-based models like ...
Betke, Margrit   +3 more
core   +2 more sources

Schlieren photography on freely flying hawkmoth [PDF]

open access: yesBiology Letters, 2018
The aerodynamic force on flying insects results from the vortical flow structures that vary both spatially and temporally throughout flight. Due to these complexities and the inherent difficulties in studying flying insects in a natural setting, a complete picture of the vortical flow has been difficult to obtain experimentally.
Yun Liu   +3 more
openaire   +2 more sources

Hawkmoths (Lepidoptera: Sphingidae) Collected in Grand Traverse and Adjacent Counties, Michigan [PDF]

open access: yes, 2018
Thirty-two (32) species of hawkmoths (Sphingidae) are reported from Grand Traverse and adjacent counties, Michigan, based on collecting carried out in 1979-1997 and an inventory of museum ...
Douglass, Andrew W   +2 more
core   +2 more sources

Tomato Hornworm Manduca quinquemaculata (Haworth) (Insecta: Lepidoptera: Sphingidae)

open access: yesEDIS, 2018
The tomato hornworm, Manduca quinquemaculata (Haworth), is a common garden pest that feeds on plants in the Solanaceae (nightshade) family including tomato, peppers, eggplant, and potato.
Morgan A. Byron   +1 more
doaj   +5 more sources

Sex- and tissue-specific expression of chemosensory receptor genes in a hawkmoth

open access: yesFrontiers in Ecology and Evolution, 2022
For the nocturnal hawkmoth Manduca sexta, olfactory and gustatory cues are essential for finding partners, food, and oviposition sites. Three chemosensory receptor families, odorant receptors (ORs), ionotropic receptors (IRs), and gustatory receptors ...
Megha Treesa Tom   +4 more
doaj   +1 more source

Evolution and loss of long-fringed petals [PDF]

open access: yes, 2012
Background: The Cucurbitaceae genus Trichosanthes comprises 90–100 species that occur from India to Japan and southeast to Australia and Fiji. Most species have large white or pale yellow petals with conspicuously fringed margins, the fringes sometimes ...
de Boer, Hugo J.   +3 more
core   +1 more source

Potential pollinator of Vanda falcata (Orchidaceae): Theretra (Lepidoptera: Sphingidae) hawkmoths are visitors of long spurred orchid

open access: yesEuropean Journal of Entomology, 2015
Vanda falcata is a species of orchid native to China, Korea and Japan. While it is arguably one of the most celebrated orchids in Japan there is no information on its pollinators. Although most species of the subtribe Aeridinae, to which V.
Kenji SUETSUGU   +3 more
doaj   +1 more source

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