Results 41 to 50 of about 49,162 (350)

Tempo and mode of performance evolution across multiple independent origins of adhesive toe pads in lizards [PDF]

open access: yes, 2017
Understanding macroevolutionary dynamics of trait evolution is an important endeavor in evolutionary biology. Ecological opportunity can liberate a trait as it diversifies through trait space, while genetic and selective constraints can limit ...
Austin C. C.   +17 more
core   +3 more sources

A New Genus of Miniaturized and Pug-Nosed Gecko from South America (Sphaerodactylidae: Gekkota) [PDF]

open access: yes, 2011
Sphaerodactyl geckos comprise five genera distributed across Central and South America and the Caribbean. We estimated phylogenetic relationships among sphaerodactyl genera using both separate and combined analyses of seven nuclear genes.
Bauer, Aaron M.   +4 more
core   +2 more sources

Development of a chlamydia infection model for evaluating costs and outcomes of health interventions

open access: yesGMS Medizinische Informatik, Biometrie und Epidemiologie, 2017
Introduction: Chlamydia is a very common bacterial sexual transmitted infection (STI) among young adults. High numbers of asymptomatic cases hamper a timely treatment start, whereas the treatment itself is efficient and cheap.
Sailer, Fabian   +2 more
doaj   +1 more source

Morphological and genetic evidence for a new karst specialist lizard from New Guinea (Cyrtodactylus: Gekkonidae) [PDF]

open access: yesRoyal Society Open Science, 2017
Exposed limestone karst landscapes, especially in the tropics, are often home to distinctive and specialized biotas. Among vertebrates, a particularly large number of karst-associated lizard taxa have been described, but for the vast majority, evidence ...
Stuart V. Nielsen, Paul M. Oliver
doaj   +1 more source

Effects of season, sex and age on the diet of Homonota fasciata (Squamata, Phyllodactylidae) from Monte region of Argentina

open access: yesIheringia: Série Zoologia, 2016
This study aimed to investigate the diet of the gecko Homonota fasciata (Duméril & Bibron, 1836) in a population from Monte of San Juan Province, Argentina, and to analyze possible temporal, sexual, and ontogenetic variations in feeding behavior.
Rodrigo A. Nieva Cocilio   +2 more
doaj   +1 more source

The influence of surface energy on the self-cleaning of insect adhesive devices [PDF]

open access: yes, 2012
The ability of insects to adhere to surfaces is facilitated by the use of adhesive organs found on the terminal leg segments. These adhesive pads are inherently 'tacky' and are expected to be subject to contamination by particulates, leading to loss of ...
Autumn   +51 more
core   +1 more source

Essay: city on steroids [PDF]

open access: yesPacific Geographies, 2016
It was love at first sight, an ancient town surrounded in oriental mystery, serene, enchanted and most importantly untouched by the advances and ravages of time.
Harrison, Steve
doaj  

Histological Analysis of Gonadal Ridge Development and Sex Differentiation of Gonads in Three Gecko Species

open access: yesBiology, 2023
Reptiles constitute a highly diverse group of vertebrates, with their evolutionary lineages having diverged relatively early. The types of sex determination exemplify the diversity of reptiles; however, there are limited data regarding the gonadal ...
Izabela Rams-Pociecha   +2 more
doaj   +1 more source

Coleonyx switaki [PDF]

open access: yes, 1990
Number of Pages: 2Integrative BiologyGeological ...
Grismer, L. Lee
core   +1 more source

Natural history of the parasite Waddycephalus in the Townsville region of north-east Australia

open access: yesParasitology, 2023
Waddycephalus is an understudied genus of pentastomids native to Australia and south-east Asia. The genus was recognized in 1922 but there has been little research on these pentastomid tongue worms over the last century.
Halvard Aas Midtun   +2 more
doaj   +1 more source

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