TITLE

Real-world challenges to, and capabilities of, the gekkotan adhesive system: contrasting the rough and the smooth

AUTHOR(S)
Russell, A.P.; Johnson, M.K.
PUB. DATE
December 2007
SOURCE
Canadian Journal of Zoology;Dec2007, Vol. 85 Issue 12, p1228
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Many species of gekkotan lizards possess adhesive subdigital pads that allow them to adhere to, and move easily on, a wide variety of surfaces. However, although the mechanism of adhesion and the potential adhesive capacity of this system have been extensively studied, the adaptive value of these structures and their deployment in natural situations have rarely been examined. The maximal adhesive capacity of gekkotan setal fields has been shown to greatly exceed the force needed to support the body. This high adhesive potential is likely an adaptation for movement on the natural surfaces that these lizards encounter in their environment. Natural surfaces may be rough, undulant, and unpredictable, and provide only limited, patchy areas with which adhesive structures can make contact. Here we examine the microtopography of rock surfaces used by a southern African species of gecko of the genus Rhoptropus Peters, 1869, and compare this to the form, configuration, compliance, and functional morphology of the setal fields of this species. Our results demonstrate that the structure and topology of natural surfaces are important factors in understanding the design of subdigital pads, and provide insight into the evolution of the adhesive system of gekkonid lizards and its adaptive value on topographically unpredictable surfaces.
ACCESSION #
28648203

 

Related Articles

  • HEUANTHEMUM PUGAE (CISTACEAE), UNA ESPECIE NUEVA DEL CENTRO DE MEXICO. Calderon De Rzedowski, Graciela // Acta Botanica Mexicana;dic1991, Issue 16, p89 

    Helianthemum pugae Calderón, sp. nov., is based on collections made in northern Guanajuato and southwestern San Luis Potosi. It is similar to H. patens Hemsl., species of wider distribution in central Mexico, which was found to grow sympatrically with H. pugae.

  • Revision of the Genus Cnemaspis Strauch, 1887 (Sauria: Gekkonidae), from the Mentawai and Adjacent Archipelagos off Western Sumatra, Indonesia, with the Description of Four New Species. Das, Indraneil // Journal of Herpetology;Jun2005, Vol. 39 Issue 2, p233 

    Four new species of Cnemaspis are described from the Mentawai and adjacent archipelagos along the northwest to the southwest coast of Sumatra, Republic of Indonesia, and one each from Simeulue, Nias, Siberut, and Enggano. These populations were allocated by earlier workers to Cnemaspis kandiana...

  • Intergeneric Relations of the Angular-Toed Geckos of Circum Western Himalayas (Sauna: Gekkonidae). Khan, Muhammad Sharif // Pakistan Journal of Zoology;Feb2009, Vol. 41 Issue 1, p29 

    The article presents the intergeneric relations of the angular-toed geckos in the Western Himalayas. It states that Altigekko is the most primitive genus based on the morphological data used in the analysis. Moreover, monophyletic generic lineage also exists between kinds of Cyrtopodion,...

  • Monkeys Galore. Dorfman, Andrea; Lemonick, Michael D. // Time International (South Pacific Edition);7/1/2002, Issue 25, p57 

    Reports on the discovery of two species of monkeys in the Brazilian Amazon. Large percentage of monkey species found in Brazil; Names of the species, Callicebus bernhardi and C. stephennashi; Expected discovery of more new species in Brazil.

  • Astragalus unalii (Fabaceae), a new species from Turkey. ÇEÇEN, Ömer; AYTAÇ, Zeki; MISIRDALI, Hüseyin // Turkish Journal of Botany;2016, Vol. 40 Issue 1, p81 

    Astragalus unalii Çeçen, Aytaç and Mısırdalı, sp. nov. (Fabaceae, sect. Malacothrix Bunge) is described as a new species from Karadağ (Karaman Province) in southern Anatolia and compared with its relatives growing in steppe vegetation. The new species is close to A....

  • speciation.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Formation and development of species.

  • STICKY FINGERS.  // Joe Weider's Muscle & Fitness;Oct2003, Vol. 64 Issue 10, p34 

    Reveals that British scientists have devised an adhesive based on the feet of geckos, according to the journal "Nature Materials." Description of setae, microscopic hairs that allow geckos to climb glass ceilings and perch on smooth walls; Obstacles facing the research.

  • Systematics of Diplodactylus (Squamata: Diplodactylidae) from the south-western Australian biodiversity hotspot: redefinition of D. polyophthalmus and the description of two new species. Doughty, Paul; Oliver, Paul M. // Records of the Western Australian Museum;2013, Vol. 28 Issue 1, p44 

    The Australian gecko genus Diplodactylus is characterised by morphologically similar but genetically divergent lineages and taxa. Recent molecular analysis indicated the presence of an undescribed Diplodactylus from the Geraldton Sandplain on the western coast of Australia, and a relatively deep...

  • A First Record for the Bighead Goby ( Neogobius kessleri Günther, 1861) along the Turkish Eastern Black Sea Coast. Balik, Süleyman; Turan, Davut // Turkish Journal of Zoology;2004, Vol. 28 Issue 2, p107 

    The, bighead goby is reported for the first time from the Turkish Eastern Black Sea coast in Kale (Taşli) Stream (Rize), Erenler Stream (Çayeli-Rize), Kantari Stream (Pazar-Rize), Firtina Stream (Ardeşen-Rize), Işkli Stream (Ardeşen), Ça&gcaron;layan Stream (Findikli-Rize)...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics