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https://www.readbyqxmd.com/read/28334227/a-phylogenetic-biogeographic-and-taxonomic-study-of-all-extant-species-of-anolis-squamata-iguanidae
#1
Steven Poe, Adrián Nieto-Montes de Oca, Omar Torres-Carvajal, Kevin de Queiroz, Julián A Velasco, Brad Truett, Levi N Gray, Mason J Ryan, Gunther Köhler, Fernando Ayala-Varela, Ian Latella
Anolis lizards (anoles) are textbook study organisms in evolution and ecology. Although several topics in evolutionary biology have been elucidated by the study of anoles, progress in some areas has been hampered by limited phylogenetic information on this group. Here we present a phylogenetic analysis of all 379 extant species of Anolis, with new phylogenetic data for 139 species including new DNA data for 101 species. We use the resulting estimates as a basis for defining anole clade names under the principles of phylogenetic nomenclature and to examine the biogeographic history of anoles...
February 27, 2017: Systematic Biology
https://www.readbyqxmd.com/read/28331587/a-simple-fast-and-repeatable-survey-method-for-underwater-visual-3d-benthic-mapping-and-monitoring
#2
Oscar Pizarro, Ariell Friedman, Mitch Bryson, Stefan B Williams, Joshua Madin
Visual 3D reconstruction techniques provide rich ecological and habitat structural information from underwater imagery. However, an unaided swimmer or diver struggles to navigate precisely over larger extents with consistent image overlap needed for visual reconstruction. While underwater robots have demonstrated systematic coverage of areas much larger than the footprint of a single image, access to suitable robotic systems is limited and requires specialized operators. Furthermore, robots are poor at navigating hydrodynamic habitats such as shallow coral reefs...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331413/resurrection-of-bronchocela-burmana-blanford-1878-for-the-green-crested-lizard-squamata-agamidae-of-southern-myanmar
#3
George R Zug, Daniel G Mulcahy, Jens V Vindum
Recent fieldwork in southern Tanintharyi revealed the presence of a small Green Crested Lizard in the wet evergreen forest. We generated mtDNA sequence data (ND2) that demonstrates that this population's nearest relative is Bronchocela rayaensis Grismer et al., 2015 of Pulau Langkawi, northwestern Peninsular Malaysia and Phuket Island. Morphologically the Burmese Bronchocela shares many features with Bronchocela rayaensis, which potentially would make this recently described Thai-Malay species a synonym of Bronchocela burmana Blanford, 1878; however, we interpret the genetic and morphological differences to reflect evolutionary divergence and recommend the recognition of both species...
2017: ZooKeys
https://www.readbyqxmd.com/read/28328067/diminishing-returns-limit-energetic-costs-of-climate-change
#4
Ofir Levy, Jason D Borchert, Travis W Rusch, Lauren B Buckley, Michael J Angilletta
Changes in the time available for organisms to maintain physiologically preferred temperatures (thermal opportunity) is a primary mechanism by which climate change impacts the fitness and population dynamics of organisms. Yet, it is unclear whether losses or gains in thermal opportunity result in proportional changes in rates of energy procurement and use. We experimentally quantified lizard food consumption and energy assimilation at different durations of thermal opportunity. We incorporated these data in an individual-based model of foraging and digestion in lizards to explore the implications of nonlinear responses to shifts in thermal opportunity across a wide geographic range...
March 22, 2017: Ecology
https://www.readbyqxmd.com/read/28327881/feline-platynosomiasis-analysis-of-the-association-of-infection-levels-with-pathological-and-biochemical-findings
#5
Dirceu Guilherme de Souza Ramos, Amanda Raiza Gonçalves Lima Oliveira Santos, Leodil da Costa Freitas, Ísis Assis Braga, Erica Pereira da Silva, Luciana Maria Curtio Soares, Nádia Aline Bobbi Antoniassi, Fernando Henrique Furlan, Richard de Campos Pacheco
Platynosomiasis is a common feline hepatic disease caused by Platynosomum fastosum (Trematoda - Dicrocoelidae), which is also known as 'lizard poisoning'. Most reports of feline platynosomiasis show that this disease is sporadic and manifests with uncommon lesions; its pathogenicity is still not well understood. This study aimed to describe liver injuries and enzymatic changes associated with natural P. fastosum infection in 47 stray cats in an endemic area. Overall, 38.3% (18/47) of cats were parasitized, and 2,358 flukes (P...
March 16, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28324161/thermal-ecology-of-three-coexistent-desert-lizards-implications-for-habitat-divergence-and-thermal-vulnerability
#6
Shu-Ran Li, Yang Wang, Liang Ma, Zhi-Gao Zeng, Jun-Huai Bi, Wei-Guo Du
How ectotherms exploit thermal resources has important implications for their habitat utilization and thermal vulnerability to climate warming. To address this issue, we investigated thermal relations of three sympatric lizard species (Eremias argus, Eremias multiocellata, and Phrynocephalus przewalskii) in the desert steppe of Inner Mongolia, China. We determined the thermoregulatory behavior, body temperature (T b), operative temperature (T e), selected body temperature (T sel), and critical thermal maximum (CTmax) of adult lizards...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28322741/evidence-of-k-homeostasis-disruption-in-cellular-dysfunction-triggered-by-7-ketocholesterol-24s-hydroxycholesterol-and-tetracosanoic-acid-c24-0-in-158n-murine-oligodendrocytes
#7
Maryem Bezine, Meryam Debbabi, Thomas Nury, Rym Ben-Khalifa, Mohammad Samadi, Mustapha Cherkaoui-Malki, Anne Vejux, Jérôme de Sèze, Thibault Moreau, Mohamed El-Ayeb, Gérard Lizard
Imbalance in the homeostasis of K(+) ions has been reported to contribute to the pathogenesis of neurodegenerative diseases. 7-ketocholesterol (7KC), 24S-hydroxycholesterol (24S-OHC), and tetracosanoic acid (C24:0), often found at increased levels in patients with Alzheimer's disease, Multiple Sclerosis and X-ALD, are able to trigger numerous nerve cell dysfunctions. We therefore studied the impact of 7KC, 24S-OHC, and C24:0 on 158N murine oligodendrocytes, and determined their impact on K(+) homeostasis. The effects of 7KC, 24S-OHC and C24:0 on lipid membrane organization and membrane potential were examined with merocyanine 540 (MC540) and bis-(1,3-diethylthiobarbituric acid) trimethine oxonol (DiSBAC2(3)), respectively...
March 17, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28316068/contribution-by-vertebrates-to-seed-dispersal-effectiveness-in-the-gal%C3%A3-pagos-islands-a-community-wide-approach
#8
M Nogales, A González-Castro, B Rumeu, A Traveset, P Vargas, P Jaramillo, J M Olesen, R Heleno
Seed dispersal and seedling recruitment are crucial phases in the life cycle of all spermatophyte plants. The net contribution of seed dispersers to plant establishment is known as seed dispersal effectiveness (SDE) and is defined as the product of a quantitative (number of seeds dispersed) and a qualitative (probability of recruitment) component. In Galápagos, we studied the direct contribution to SDE (number of seeds dispersed and effect on seedling emergence) provided by the five island groups of frugivores (giant tortoises, lizards, medium-sized passerine birds, small non-finch passerine birds and finches) in the two main habitats in this archipelago: the lowland and the highland zones, and found 16 vertebrate species dispersing 58 plant species...
March 17, 2017: Ecology
https://www.readbyqxmd.com/read/28315792/oxysterols-players-in-different-metabolic-leagues
#9
EDITORIAL
Dieter Lütjohann, Gérard Lizard, Luigi Iuliano
No abstract text is available yet for this article.
March 15, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28303197/heterogeneous-tempo-and-mode-of-evolutionary-diversification-of-compounds-in-lizard-chemical-signals
#10
Roberto García-Roa, Manuel Jara, Pilar López, José Martín, Daniel Pincheira-Donoso
Important part of the multivariate selection shaping social and interspecific interactions among and within animal species emerges from communication. Therefore, understanding the diversification of signals for animal communication is a central endeavor in evolutionary biology. Over the last decade, the rapid development of phylogenetic approaches has promoted a stream of studies investigating evolution of communication signals. However, comparative research has primarily focused on visual and acoustic signals, while the evolution of chemical signals remains largely unstudied...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28298883/increased-testosterone-decreases-medial-cortical-volume-and-neurogenesis-in-territorial-side-blotched-lizards-uta-stansburiana
#11
Lara D LaDage, Timothy C Roth, Cynthia J Downs, Barry Sinervo, Vladimir V Pravosudov
Variation in an animal's spatial environment can induce variation in the hippocampus, an area of the brain involved in spatial cognitive processing. Specifically, increased spatial area use is correlated with increased hippocampal attributes, such as volume and neurogenesis. In the side-blotched lizard (Uta stansburiana), males demonstrate alternative reproductive tactics and are either territorial-defending large, clearly defined spatial boundaries-or non-territorial-traversing home ranges that are smaller than the territorial males' territories...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28298595/incubation-under-climate-warming-affects-learning-ability-and-survival-in-hatchling-lizards
#12
Buddhi Dayananda, Jonathan K Webb
Despite compelling evidence for substantial individual differences in cognitive performance, it is unclear whether cognitive ability influences fitness of wild animals. In many animals, environmental stressors experienced in utero can produce substantial variation in the cognitive abilities of offspring. In reptiles, incubation temperatures experienced by embryos can influence hatchling brain function and learning ability. Under climate warming, the eggs of some lizard species may experience higher temperatures, which could affect the cognitive abilities of hatchlings...
March 2017: Biology Letters
https://www.readbyqxmd.com/read/28298465/geographic-divergence-and-colour-change-in-response-to-visual-backgrounds-and-illumination-intensity-in-bearded-dragons
#13
Viviana Cadena, Kathleen R Smith, John A Endler, Devi Stuart-Fox
Animals may improve camouflage by both dynamic colour change and local evolutionary adaptation of colour but we have little understanding of their relative importance in colour-changing species. We tested for differences in colour change in response to background colour and light intensity in two populations of central bearded dragon lizards (Pogona vitticeps) representing the extremes in body coloration and geographical range. We found that bearded dragons change colour in response to various backgrounds and that colour change is affected by illumination intensity...
March 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28296138/the-regulation-of-uterine-proinflammatory-gene-expression-during-pregnancy-in-the-live-bearing-lizard-pseudemoia-entrecasteauxii
#14
Kevin Hendrawan, Camilla M Whittington, Matthew C Brandley, Katherine Belov, Michael B Thompson
The evolutionary transition from egg-laying to live-bearing in amniote vertebrates (reptiles and mammals) requires the development of a closer association between the maternal and embryonic tissue to facilitate gas and nutrient exchange with the embryo. Because the embryo is an allograft to the father and mother, it could be considered foreign by the maternal immune system and thus be immunologically rejected during pregnancy. In eutherian ("placental") mammals, the proinflammatory genes interleukin 1B (IL1B), tumor necrosis factor (TNF) and tumor necrosis factor receptor superfamily 1A (TNFRSF1A) are tightly regulated in the pregnant uterus to prevent embryonic rejection...
March 10, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28281776/parasites-of-domestic-and-wild-animals-in-south-africa-li-ticks-infesting-leopard-tortoises-i-stigmochelys-pardalis-i-hingeback-tortoises-i-kinixys-zombensis-i-and-angulate-tortoises-i-chersina-angulata-i
#15
Ivan G Horak, Ashley Pearcy, Kyle J Lloyd
The objective of the study was to record the tick species collected from three species of tortoise, each in a different province of South Africa. Ticks were collected from leopard tortoises, Stigmochyles pardalis, in the southern region of the Kruger National Park, Mpumalanga province; from hingeback tortoises, Kinixys zombensis, in the Enseleni Nature Reserve, KwaZulu-Natal province and from angulate tortoises, Chersina angulata, in the West Coast National Park, Western Cape province. Of the 63 leopard tortoises examined, 58 were infested with Amblyomma marmoreum and 49 with Amblyomma hebraeum, and all stages of development of both species were recovered...
February 28, 2017: Onderstepoort Journal of Veterinary Research
https://www.readbyqxmd.com/read/28272735/digest-old-world-climates-give-rise-to-young-lizard-skulls
#16
Amanda K Powers
Shared environmental pressures often give rise to the convergence of morphological characters in unrelated and geographically distinct species. Darwin (1859) wrote that "analogous variation" of traits in different organisms could be explained by similar influences or challenges in their environment. Convergence of traits can be driven by adaptive radiation when animals invade similar ecological feeding niches and consequently converge on similar morphologies, such as broader beak shape in seed-crushing species of Darwin's finches (Grant, 1999)...
March 8, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28271175/tail-regeneration-affects-the-digestive-performance-of-a-mediterranean-lizard
#17
Kostas Sagonas, Niki Karambotsi, Aristoula Bletsa, Aikaterini Reppa, Panayiotis Pafilis, Efstratios D Valakos
In caudal autotomy, lizards shed their tail to escape from an attacking predator. Since the tail serves multiple functions, caudal regeneration is of pivotal importance. However, it is a demanding procedure that requires substantial energy and nutrients. Therefore, lizards have to increase energy income to fuel the extraordinary requirements of the regenerating tail. We presumed that autotomized lizards would adjust their digestion to acquire this additional energy. To clarify the effects of tail regeneration on digestion, we compared the digestive performance before autotomy, during regeneration, and after its completion...
April 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28264304/conservation-assessments-in-climate-change-scenarios-spatial-perspectives-for-present-and-future-in-two-i-pristidactylus-i-squamata-leiosauridae-lizards-from-argentina
#18
Ignacio Minoli, Luciano Javier Avila
The consequences of global climate change can already be seen in many physical and biological systems and these effects could change the distribution of suitable areas for a wide variety of organisms to the middle of this century. We analyzed the current habitat use and we projected the suitable area of present conditions into the geographical space of future scenarios (2050), to assess and quantify whether future climate change would affect the distribution and size of suitable environments in two Pristidactylus lizard species...
February 26, 2017: Zootaxa
https://www.readbyqxmd.com/read/28259431/the-impact-of-land-use-intensity-and-associated-pesticide-applications-on-fitness-and-enzymatic-activity-in-reptiles-a-field-study
#19
Valentin Mingo, Stefan Lötters, Norman Wagner
Environmental pollution and habitat loss are described as underlying causes for population declines in reptiles and especially affect species in agricultural landscapes. Studies dealing with effects of pesticide exposure on reptiles are limited, mainly addressing the orders Testudines and Crocodylia, but largely neglecting the most diverse reptile order Squamata (lizards and snakes). As a consequence, information regarding effects on their organisms, as well as exposure probability and pesticide uptake in the Reptilia has to be considered rather uncharted...
March 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28256610/the-genome-of-leishmania-adleri-from-a-mammalian-host-highlights-chromosome-fission-in-sauroleishmania
#20
Simone Coughlan, Peter Mulhair, Mandy Sanders, Gabriele Schonian, James A Cotton, Tim Downing
Control of pathogens arising from humans, livestock and wild animals can be enhanced by genome-based investigation. Phylogenetically classifying and optimal construction of these genomes using short sequence reads are key to this process. We examined the mammal-infecting unicellular parasite Leishmania adleri belonging to the lizard-infecting Sauroleishmania subgenus. L. adleri has been associated with cutaneous disease in humans, but can be asymptomatic in wild animals. We sequenced, assembled and investigated the L...
March 3, 2017: Scientific Reports
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