keyword
MENU ▼
Read by QxMD icon Read
search

sceloporus

keyword
https://www.readbyqxmd.com/read/28515008/localization-and-distribution-of-gonadal-proteins-in-the-oviparous-lizard-sceloporus-aeneus-squamata-phrynosomatidae
#1
Antonio-Rubio Nivia Rocio, Villagrán-SantaCruz Maricela, Moreno-Mendoza Norma
Among vertebrates, several specific proteins are involved in the function and development of gonads. Several genes such as SOX9, FOXL2, DDX4, IFITM3, and DPPA3, are active during embryonic differentiation and maintain their expression in adult tissues, playing important roles in the function and development of the line cell, where these are produced. Among reptiles, molecular mechanisms for sex differentiation have been analyzed in turtles, crocodiles, and some lizards, while in adult stages such studies are scarce...
May 14, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28507191/lowering-metabolic-rate-mitigates-muscle-atrophy-in-western-fence-lizards
#2
J Balaban, E Azizi
Extended periods of skeletal muscle disuse can cause a significant loss of contractile proteins, which compromises the ability to generate force, mechanical work or power, thus compromising locomotor performance. Several hibernating organisms can resist muscle atrophy despite months of inactivity. This resistance has been attributed to a reduction in body temperature and metabolic rate and activation of physiological pathways that counteract pathways of protein degradation. However, in these systems such strategies are not mutually exclusive and the effects of these mechanisms can be difficult to separate...
May 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28413237/in-space-and-time-territorial-animals-are-attracted-to-conspecific-chemical-cues
#3
Stephanie M Campos, Chloe Strauss, Emília P Martins
Territorial animals lay scent marks around their territories to broadcast their presence, but these olfactory signals can both attract and repel con-specifics. Attraction or aversion can have a profound impact in terms of space use and thereby influence an individual's access to resources and mates. Here, we test the impact of chemical signals on the long-term space use and activity of receivers, comparing the response of males and females, territory holders, and temporary visitors in Sceloporus undulatus lizards in the field...
February 2017: Ethology: Formerly Zeitschrift Für Tierpsychologie
https://www.readbyqxmd.com/read/28392486/species-delimitation-of-the-blue-spotted-spiny-lizard-within-a-multilocus-multispecies-coalescent-framework-results-in-the-recognition-of-a-new-sceloporus-species
#4
Brenda Díaz-Cárdenas, Eduardo Ruiz-Sanchez, Patricia Castro-Felix, Gamaliel Castañeda-Gaytán, Sergio Ruiz-Santana, Héctor Gadsden
Species delimitation is a major topic in systematics. Species delimitation methods based on molecular data have become more common since this approach provides insights about species identification via levels of gene flow, the degree of hybridization and phylogenetic relationships. Also, combining multilocus mitochondrial and nuclear DNA leads to more reliable conclusions about species limits. Coalescent-based species delimitation methods explicitly reveal separately evolving lineages using probabilistic approaches and testing the delimitation hypotheses for several species...
April 6, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28384419/are-invasive-species-stressful-the-glucocorticoid-profile-of-native-lizards-exposed-to-invasive-fire-ants-depends-on-the-context
#5
Sean P Graham, Nicole A Freidenfelds, Christopher J Thawley, Travis R Robbins, Tracy Langkilde
Invasive species represent a substantial threat to native species worldwide. Research on the impacts of invasive species on wild living vertebrates has focused primarily on population-level effects. The sublethal, individual-level effects of invaders may be equally important but are poorly understood. We investigated the effects of invasive fire ants (Solenopsis invicta) on the physiological stress response of a native lizard (Sceloporus undulatus) within two experimental contexts: directly exposing lizards to a fire ant attack and housing lizards with fire ants in seminatural field enclosures...
May 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28168027/the-interplay-between-natural-and-sexual-selection-in-the-evolution-of-sexual-size-dimorphism-in-sceloporus-lizards-squamata-phrynosomatidae
#6
Víctor H Jiménez-Arcos, Salomón Sanabria-Urbán, Raúl Cueva Del Castillo
Sexual size dimorphism (SSD) evolves because body size is usually related to reproductive success through different pathways in females and males. Female body size is strongly correlated with fecundity, while in males, body size is correlated with mating success. In many lizard species, males are larger than females, whereas in others, females are the larger sex, suggesting that selection on fecundity has been stronger than sexual selection on males. As placental development or egg retention requires more space within the abdominal cavity, it has been suggested that females of viviparous lizards have larger abdomens or body size than their oviparous relatives...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28133829/evidence-for-concerted-movement-of-nuclear-and-mitochondrial-clines-in-a-lizard-hybrid-zone
#7
Adam D Leaché, Jared A Grummer, Rebecca B Harris, Ian K Breckheimer
Moving hybrid zones provide compelling examples of evolution in action, yet long-term studies that test the assumptions of hybrid zone stability are rare. Using replicated transect samples collected over a 10-year interval from 2002 to 2012, we find evidence for concerted movement of genetic clines in a plateau fence lizard hybrid zone (Sceloporus tristichus) in Arizona. Cline-fitting analyses of SNP and mtDNA data both provide evidence that the hybrid zone shifted northward by approximately 2 km during the 10-year interval...
April 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28058803/would-behavioral-thermoregulation-enables-pregnant-viviparous-tropical-lizards-to-cope-with-a-warmer-world
#8
Saúl López-Alcaide, Miguel Nakamura, Eric N Smith, Enrique Martínez-Meyer
Sceloporus lizards depend on external heat to achieve their preferred temperature (Tse1 ) for performing physiological processes. Evidence both in the field and laboratory indicates that pregnant females of this genus select body temperatures (Tb ) lower than 34°C as higher temperatures may be lethal to embryos. Therefore, thermoregulation is crucial for successful embryo development. Given the increase in global air temperature, it is expected that the first compensatory response of species that inhabit tropical climates will be behavioral thermoregulation...
January 5, 2017: Integrative Zoology
https://www.readbyqxmd.com/read/28018661/shaping-communicative-colour-signals-over-evolutionary-time
#9
Alison G Ossip-Drahos, José R Oyola Morales, Cuauhcihuatl Vital-García, J Jaime Zúñiga-Vega, Diana K Hews, Emília P Martins
Many evolutionary forces can shape the evolution of communicative signals, and the long-term impact of each force may depend on relative timing and magnitude. We use a phylogenetic analysis to infer the history of blue belly patches of Sceloporus lizards, and a detailed spectrophotometric analysis of four species to explore the specific forces shaping evolutionary change. We find that the ancestor of Sceloporus had blue patches. We then focus on four species; the first evolutionary shift (captured by comparison of S...
November 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27864050/ancestry-trumps-experience-transgenerational-but-not-early-life-stress-affects-the-adult-physiological-stress-response
#10
Gail L McCormick, Travis R Robbins, Sonia A Cavigelli, Tracy Langkilde
Exposure to stressors can affect an organism's physiology and behavior as well as that of its descendants (e.g. through maternal effects, epigenetics, and/or selection). We examined the relative influence of early life vs. transgenerational stress exposure on adult stress physiology in a species that has populations with and without ancestral exposure to an invasive predator. We raised offspring of eastern fence lizards (Sceloporus undulatus) from sites historically invaded (high stress) or uninvaded (low stress) by predatory fire ants (Solenopsis invicta) and determined how this different transgenerational exposure to stress interacted with the effects of early life stress exposure to influence the physiological stress response in adulthood...
January 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/27775197/survival-by-genotype-patterns-at-mc1r-are-not-black-and-white-at-the-white-sands-ecotone
#11
S Des Roches, R Sollmann, K Calhoun, A P Rothstein, E B Rosenblum
Measuring links among genotype, phenotype and survival in the wild has long been a focus of studies of adaptation. We conducted a 4-year capture-recapture study to measure survival by genotype and phenotype in the Southwestern Fence Lizard (Sceloporus cowlesi) at the White Sands ecotone (transition area between white sands and dark soil habitats). We report several unanticipated findings. First, in contrast with previous work showing that cryptic blanched coloration in S. cowlesi from the heart of the dunes is associated with mutations in the melanocortin-1 receptor gene (Mc1r), ecotonal S...
October 24, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27734634/habitat-use-in-eight-populations-of-sceloporus-grammicus-squamata-phrynosomatidae-from-the-mexican-plateau
#12
A Leyte-Manrique, U Hernández-Salinas, A Ramírez-Bautista, V Mata-Silva, J C Marshall
Studies on habitat use have often helped explain observed variation in morphology, behavior, and reproductive characteristics among populations within a single species. Here we analyze morphological and ecological characteristics of individuals from the Sceloporus grammicus species complex from seven different localities (El Cerezo: CER, Pachuca: PAC, Huichapan: HUI, Emiliano Zapata: EZA, San Miguel Regla: SMR, La Mojonera: LMJ, and La Manzana: LMZ) in the state of Hidalgo, and one locality (Cahuacán) in the State of México...
October 13, 2016: Integrative Zoology
https://www.readbyqxmd.com/read/27722876/evolutionary-interactions-between-visual-and-chemical-signals-chemosignals-compensate-for-the-loss-of-a-visual-signal-in-male-sceloporus-lizards
#13
Jake A Pruett, J Jaime Zúñiga-Vega, Stephanie M Campos, Helena A Soini, Milos V Novotny, Cuauhcihuatl Vital-García, Emília P Martins, Diana K Hews
Animals rely on multimodal signals to obtain information from conspecifics through alternative sensory systems, and the evolutionary loss of a signal in one modality may lead to compensation through increased use of signals in an alternative modality. We investigated associations between chemical signaling and evolutionary loss of abdominal color patches in males of four species (two plain-bellied and two colorful-bellied) of Sceloporus lizards. We conducted field trials to compare behavioral responses of male lizards to swabs with femoral gland (FG) secretions from conspecific males and control swabs (clean paper)...
November 2016: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/27597293/populations-of-the-lizard-sceloporus-occidentalis-that-differ-in-melanization-have-different-rates-of-wound-healing
#14
Ryan J Seddon, Diana K Hews
Mechanisms underlying production of animal coloration can affect key traits besides coloration. Melanin, and molecules regulating melanin, can directly and indirectly affect other phenotypic traits, such as immune function. We asked whether melanization and a whole-organism measure of immune function are associated with wound healing. Working with two populations of adult male western fence lizards, Sceloporus occidentalis, we compared one high-elevation and one low-elevation population in California where individuals are increasingly darker at higher elevations, measuring wound healing rates...
September 6, 2016: Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology
https://www.readbyqxmd.com/read/27558698/lizards-fail-to-plastically-adjust-nesting-behavior-or-thermal-tolerance-as-needed-to-buffer-populations-from-climate-warming
#15
Rory S Telemeco, Brooke Fletcher, Ofir Levy, Angela Riley, Yesenia Rodriguez-Sanchez, Colton Smith, Collin Teague, Amanda Waters, Michael J Angilletta, Lauren B Buckley
Although observations suggest the potential for phenotypic plasticity to allow adaptive responses to climate change, few experiments have assessed that potential. Modeling suggests that Sceloporus tristichus lizards will need increased nest depth, shade cover, or embryonic thermal tolerance to avoid reproductive failure resulting from climate change. To test for such plasticity, we experimentally examined how maternal temperatures affect nesting behavior and embryonic thermal sensitivity. The temperature regime that females experienced while gravid did not affect nesting behavior, but warmer temperatures at the time of nesting reduced nest depth...
August 25, 2016: Global Change Biology
https://www.readbyqxmd.com/read/27420780/including-fossils-in-phylogenetic-climate-reconstructions-a-deep-time-perspective-on-the-climatic-niche-evolution-and-diversification-of-spiny-lizards-sceloporus
#16
A Michelle Lawing, P David Polly, Diana K Hews, Emília P Martins
Fossils and other paleontological information can improve phylogenetic comparative method estimates of phenotypic evolution and generate hypotheses related to species diversification. Here, we use fossil information to calibrate ancestral reconstructions of suitable climate for Sceloporus lizards in North America. Integrating data from the fossil record, general circulation models of paleoclimate during the Miocene, climate envelope modeling, and phylogenetic comparative methods provides a geographically and temporally explicit species distribution model of Sceloporus-suitable habitat through time...
August 2016: American Naturalist
https://www.readbyqxmd.com/read/27408562/amphibians-and-reptiles-of-the-state-of-nuevo-le%C3%A3-n-mexico
#17
Julio A Lemos-Espinal, Geoffrey R Smith, Alexander Cruz
We compiled a check list of the herpetofauna of Nuevo León. We documented 132 species (23 amphibians, 109 reptiles), representing 30 families (11 amphibians, 19 reptiles) and 73 genera (17 amphibians, 56 reptiles). Only two species are endemic to Nuevo León. Nuevo León contains a relatively high richness of lizards in the genus Sceloporus. Overlap in the herpetofauna of Nuevo León and states it borders is fairly extensive. Of 130 native species, 102 are considered species of Least Concern in the IUCN red list, four are listed as Vulnerable, five are listed as Near Threatened, and four are listed as Endangered...
2016: ZooKeys
https://www.readbyqxmd.com/read/27408554/amphibians-and-reptiles-of-the-state-of-coahuila-mexico-with-comparison-with-adjoining-states
#18
Julio A Lemos-Espinal, Geoffrey R Smith
We compiled a checklist of the amphibians and reptiles of the state of Coahuila, Mexico. The list comprises 133 species (24 amphibians, 109 reptiles), representing 27 families (9 amphibians, 18 reptiles) and 65 genera (16 amphibians, 49 reptiles). Coahuila has a high richness of lizards in the genus Sceloporus. Coahuila has relatively few state endemics, but has several regional endemics. Overlap in the herpetofauna of Coahuila and bordering states is fairly extensive. Of the 132 species of native amphibians and reptiles, eight are listed as Vulnerable, six as Near Threatened, and six as Endangered in the IUCN Red List...
2016: ZooKeys
https://www.readbyqxmd.com/read/27137079/phenotypic-correlates-of-melanization-in-two-sceloporus-occidentalis-phrynosomatidae-populations-behavior-androgens-stress-reactivity-and-ectoparasites
#19
Ryan J Seddon, Diana K Hews
Mechanisms underlying production of animal coloration can affect key traits besides coloration. Melanin, and molecules regulating melanin, can directly and indirectly affect other phenotypic traits including aggression, stress-reactivity, and immune function. We studied correlation of melanization with these other traits, comparing within- and between-population differences of adult male western fence lizards, Sceloporus occidentalis. We compared one high- and one low-elevation population in California where individuals are increasingly darker at higher elevations, working during comparable periods of the breeding season at each site (first egg clutch)...
September 1, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27006602/two-new-species-of-parapharyngodon-parasites-of-sceloporus-pyrocephalus-with-a-key-to-the-species-found-in-mexico-nematoda-pharyngodonidae
#20
Edgar Uriel Garduño-Montes de Oca, Rosario Mata-López, Virginia León-Règagnon
Two new species of Parapharyngodon collected from the intestine of the Mexican boulder spiny lizard Sceloporus pyrocephalus are described. This study increases to 49 the number of valid species assigned to Parapharyngodon worldwide, 11 of them distributed in Mexico. Males of the two new species share the presence of four pairs of caudal papillae, an anterior echinate cloacal lip and the presence of lateral alae; however, both differ from each other in lateral alae extension and echinate cloacal anterior lip morphology...
2016: ZooKeys
keyword
keyword
50770
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"