Geckos
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Helmintos parasitas de lagartos Phyllodactylidae e Gekkonidae em estação ecológica na Caatinga, nordeste do Brasil
Resumo Nós investigamos os parasitas de cinco espécies de lagartos pertencentes às famílias Phyllodactylidae (Phyllopezus pollicaris e Gymnodactylus geckoides) e Gekkonidae (Hemidactylus agrius, Lygodactylus klugei e Hemidactylus brasilianus) em região semiárida do Brasil. Seis espécies de nematoides foram encontrados: Parapharyngodon alvarengai e Spa
Biota Neotrop.. Publicado em: 26/10/2017
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2. Pentastomídeos infectando um lagarto invasor, Hemidactylus mabouia (Gekkonidae), na região nordeste do Brasil
De janeiro a abril de 2006 foram coletados 37 espécimes de Hemidactylus mabouia em domicílios no município de Barbalha (7° 20' S e 39° 18' W), Estado do Ceará, Nordeste do Brasil. Entre os indivíduos capturados, 17 estavam infectados com pentastomídeos, totalizando uma prevalência de 45,9%, sem diferenças significantes entre os sexos. O tamanho dos
Brazilian Journal of Biology. Publicado em: 2008-08
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3. Tropical House Gecko (Hemidactylus mabouia) predation on brown spiders (Loxosceles intermedia)
Brown spiders (Loxosceles spp.) are venomous arachnids, successfully adapted to urban habitats in Brazil. Loxoscelism became a serious public health problem in Paraná State, especially at the capital Curitiba, where the most abundant species is Loxosceles intermedia. Hemidactylus mabouia (Gekkonidae) lizards are synanthropic predators of arthropods. In this
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2004
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4. Evolutionary Dynamics of Mitochondrial DNA Duplications in Parthenogenetic Geckos, Heteronotia Binoei
Mitochondrial DNA (mtDNA) from triploid parthenogenetic geckos of the Heteronotia binoei complex varies in size from 17.2 to 27.6 kilobases (kb). Comparisons of long vs. short genomes using restriction endonucleases revealed a series of tandem direct duplications ranging in size from 1.2 to 10.4 kb. This interpretation was supported by transfer-hybridization
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5. Evidence for self-cleaning in gecko setae
A tokay gecko can cling to virtually any surface and support its body mass with a single toe by using the millions of keratinous setae on its toe pads. Each seta branches into hundreds of 200-nm spatulae that make intimate contact with a variety of surface profiles. We showed previously that the combined surface area of billions of spatulae maximizes van der
National Academy of Sciences.
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6. From micro to nano contacts in biological attachment devices
Animals with widely varying body weight, such as flies, spiders, and geckos, can adhere to and move along vertical walls and even ceilings. This ability is caused by very efficient attachment mechanisms in which patterned surface structures interact with the profile of the substrate. An extensive microscopic study has shown a strong inverse scaling effect in
National Academy of Sciences.
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7. Evidence for van der Waals adhesion in gecko setae
Geckos have evolved one of the most versatile and effective adhesives known. The mechanism of dry adhesion in the millions of setae on the toes of geckos has been the focus of scientific study for over a century. We provide the first direct experimental evidence for dry adhesion of gecko setae by van der Waals forces, and reject the use of mechanisms relying
National Academy of Sciences.
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8. Pre-tension generates strongly reversible adhesion of a spatula pad on substrate
Motivated by recent studies on reversible adhesion mechanisms of geckos and insects, we investigate the effect of pre-tension on the orientation-dependent adhesion strength of an elastic tape adhering on a substrate. Our analysis shows that the pre-tension can significantly increase the peel-off force at small peeling angles while decreasing it at large peel
The Royal Society.
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9. Gecko ι-crystallin: How cellular retinol-binding protein became an eye lens ultraviolet filter
Eye lenses of various diurnal geckos contain up to 12% ι-crystallin. This protein is related to cellular retinol-binding protein type I (CRBP I) but has 3,4-didehydroretinol, rather than retinol, as a ligand. The 3,4-didehydroretinol gives the lens a yellow color, thus protecting the retina by absorbing short-wave radiation. ι-Crystallin could be either th
The National Academy of Sciences.