نتایج جستجو برای: turtle
تعداد نتایج: 6020 فیلتر نتایج به سال:
Galanin is a hormone 29 or 30 amino acids (aa) long that is widely distributed within the body and exerts numerous biological effects in vertebrates. To fully understand its physiological roles in reptiles, we analyzed preprogalanin cDNA structure and expression in the turtle pituitary. Using the Chinese soft-shell turtle (Pelodiscus sinensis order Testudines), we obtained a 672-base pair (bp) ...
Unidirectional (36)Cl(-) efflux via the red blood cell anion exchanger was measured under Cl(-) self-exchange conditions (i.e. no net flow of anions) in rainbow trout Oncorhynchus mykiss and red-eared freshwater turtle Trachemys scripta to examine the effects of acute temperature changes and acclimation temperature on this process. We also evaluated the possible adaptation of anion exchange to ...
The western pond turtle Emys (formerly Clemmys) marmorata is declining throughout its range, primarily due to loss of habitat via urbanization and conversion to agriculture. Urban waterways present several important challenges to freshwater turtle populations, but they also present an opportunity to maintain declining species in a ubiquitous habitat that has high public visibility. The arboretu...
The contribution of technology to the teaching and learning of geometry is perceived to be strongly linked with interactivity, multiple interlinked representations, including symbolic ones, dynamic manipulations, and dynamic visualizations (Laborde et al. 2006). However, relatively little research has been carried out on the way the above distinct characteristics of digital media can be exploit...
Citation: Herrera-Vargas MA, Meléndez-Herrera E, Gutiérrez-Ospina G, Bucio-Piña FE, Báez-Saldaña A, Siliceo-Cantero HH and Fuentes-Farías AL (2017) Hatchlings of the Marine Turtle Lepidochelys olivacea Display Signs of Prenatal Stress at Emergence after Being Incubated in Man-Made Nests: A Preliminary Report. Front. Mar. Sci. 4:400. doi: 10.3389/fmars.2017.00400 Hatchlings of the Marine Turtle ...
Our report highlights a case of severe childhood salmonellosis related to a pet turtle, a red-eared slider (Trachemys scripta elegans). A 6-year-old girl had gastroenteritis complicated with sepsis caused by serotype Paratyphi B, which shared the same pulsed-field gel electrophoresis profiles with the organism isolated from a pet turtle. Based on our literature survey on childhood invasive salm...
We isolated and characterized eight polymorphic microsatellite loci for a Texas population of three-toed box turtle, Terrapene carolina triunguis, using a refined hybridization capture procedure. All eight primer pairs amplified successfully at all loci in seven Texas ornate box turtles (T. ornata ornata). Due to the decline and conservation concerns of North American box turtles, these isolate...
We present data spanning approximately 100 years regarding the spatial and temporal occurrence of marine turtle sightings and strandings in the northeast Atlantic from two public recording schemes and demonstrate potential signals of changing population status. Records of loggerhead (n = 317) and Kemp’s ridley (n = 44) turtles occurring on the European continental shelf were most prevalent duri...
Reviews of the status of the sea turtle populations in the Indo Pacific region (Limpus, 1994; 1997) reveal a declining trend since decades that is most likely due to unregulated human activities. The deterioration of key habitats that are important during different life stages of turtle populations and activities related to targeted and non-targeted catch put the survival of all seven globally ...
Turtles have the unparalleled ability to retract their heads and necks within their shell but little is known about the evolution of this trait. Extensive analysis of neck mobility in turtles using radiographs, CT scans, and morphometry reveals that basal turtles possessed less mobility in the neck relative to their extant relatives, although the anatomical prerequisites for modern mobility wer...
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