Uta stansburiana is polymorphic for different male mating and female life. Selected flora of the uc santa cruz campus, 2 nd ed. Natural and sexual selection on the physiological bases of alternative male behaviors in sideblotched lizards barry sinervo,,1 donald b. To detail the steps of this mode of speciation, we studied the geographic variation and evolutionary history of a throat color. Evolutionary game of rockpaperscissors may lead to new species. The common sideblotched lizard uta stansburiana is a species of side blotched lizard native. Dec 18, 2012 determining the factors that give rise to reproductive isolation is critical for understanding how species form. Lab and field work consisting of breeding and caring for common side blotched lizards uta stansburiana, manipulation of eggs yolk reduction and hormone applications and releasing hatchlings in the field with dr. Selective loss of polymorphic mating types is associated with.
We used the comparative method to study the evolution of sexual size dimorphism ssd among populations of side. A populationlevel comparative analysis ammon corl,12 alison r. Denardo department of ecology and evolutionary biology, university of california. Maturational costs of reproduction due to clutch size and. Selective loss of polymorphic mating types is associated with rapid.
Alternative strategies in sideblotched lizards have. Etymology named after howard stansbury, an explorer in the army corps of engineers who led a famous expedition to study the flora and fauna of whats now utah and collected the type specimens of this lizard. During our trip down the river, we saw numerous sideblotched lizards, despite. Energy requirements of the sideblotched lizard uta. Pdf corticosterone, locomotor performance, and metabolism. Thermal characteristics of the nest sites and territories of reptiles are simple to.
Climate change workshops are funded by nsf emerging frontiers, as is the research we are conducting across the globe on extinction of lizards and frogs due to climate change, in interaction with successional changes in plant communities. Ucsc course reserves supports our students by providing free access to these materials. Barry sinervo room 269, coastal biology building, santa cruz, ca 95064 department of ecology and evolutionary biology at the university of california, santa cruz. Barry sinervo university of california, santa cruz. Oby alleles observed among males in four uta stansburiana populations. Sinervoeffects of corticosterone on activity and territory size of. Sideblotched lizards are very appropriate to address these questions because we can investigate selection and dispersal in great detail, since these lizards are easy to capture, mark, and follow throughout their. A corl, ar davis, sr kuchta, t comendant, b sinervo.
Selfrecognition, color signals, and cycles of greenbeard. An experimental test of the ideal despotic distribution. The sideblotched lizard, uta stansburiana, has three morphs differing in. To detail the steps of this mode of speciation, we studied the geographic variation and evolutionary history of a throat color polymorphism that distinguishes the rockpaperscissors mating strategies of the sideblotched lizard, uta stansburiana. Sinervo lab home people climate change rockpaperscissors alternative reproductive tactics male morphs, uta stansburiana female morphs, uta. The sideblotched lizard uta stansburiana has an annual life history in that it matures in one year but rarely survives more than one reproductiveseason. Evolutionary game of rockpaperscissors may lead to new. The environmental temperature, oxygen consumption, diel activity, and critical thermal minimum in uta stansburiana, was studied to estimate the yearly energy requirements for a population of this lizard. Mate choice games, contextdependent good genes, and. The effect of sire genotype and size at birth in sideblotched lizards barry sinervo,1,2, ryan calsbeek,3. To test these ideas, we examined dispersal behavior as a function of genetic similarity in a polymorphic vertebrate, the annual sideblotched lizard, uta stansburiana. Abstract when selection acts on social or behavioral traits, the fitness of an individual depends on the phenotypes of its competitors. Uta we test for coadapted morph complexes in a single species. Morphs, dispersal behavior, genetic similarity, and the.
Bluethroated males defend smaller territories with fewer females. Gonadotropin hormone modulation of testosterone, immune. Dorsal cortex volume in male sideblotched lizards, uta stansburiana, is associated with different space use strategies. University of california, santa cruz, supports this idea. Polymorphism may play an important role in speciation because new species could originate from the distinctive morphs observed in polymorphic populations. University of california, santa cruz, ca 95064, usa email. Show light blue vertical guidelines, or light red vertical window separators in multiregion view.
Sinervo b, b heulin, y surgetgroba, j clobert, db miles, a corl, a chaine, and a davis. Thus, phylogenetic affinities between the old and new world parasite species are unknown. It may miss more divergent or shorter sequence alignments. Spatial scale and temporal component of selection in side. Selfrecognition, color signals, and cycles of greenbeard mutualism and altruism barry sinervo. Alternative mating strategies and the evolution of sexual size dimorphism in the sideblotched lizard, uta stansburiana. Dorsal cortex volume in male sideblotched lizards, uta stansburiana. However, good genes may depend on the social environment, and female choice for good genes should be context dependent. Mate choice games, contextdependent good genes, and genetic. Department of earth and marine sciences, university of california, santa cruz, california 95064. Blat search genome university of california, santa cruz.
Page 1 ecology and breeding colors of the sideblotched lizard uta stansburiana in the grand canyonby robert schell and jessica dettman the sideblotched lizard uta stansburiana is one of the most common lizardsalong the colorado river corridor through the grand canyon warren and schwalbe. Course reserves university of california, santa cruz. Springerverlag 2002 abstract territoriality drives the evolution of many mating systems, yet has remained an extremely difficult trait to measure in the wild. Corticosterone, locomotor performance, and metabolism in side. Department of biology, earth and marine sciences building, a316, university of california, santa cruz, ca 95064, usa 831. Species of schellackia reichenow, 1919 have been described from the blood of reptiles distributed worldwide. Multilocus measures of association 22 across all 10 loci were highly significant fig.
Environmental stochasticity and climate affect outcomes in evolutionary games, which can thereby affect biological diversity. Uta stansburiana in the grand canyon by robert schell and jessica dettman the sideblotched lizard uta stansburiana is one of the most common lizards along the colorado river corridor through the grand canyon warren and schwalbe 1986. Yellowthroated males do not defend a territory, but patrol a large home range. Kuchta4, and barry sinervo department of ecology and evolutionary biology, ems a316, university of california, santa cruz, ca 95064. The common sideblotched lizard uta stansburiana is a species of sideblotched lizard native. According to mate choice models, a female should prefer males with traits that are reliable indicators of genetic quality which the sire can pass on to their progeny. Research was supported by nsf grants bsr 8919600, deb 9307999, ibn 9631757, deb 0108577, and ibn 02179. Corticosterone, locomotor performance, and metabolism in sideblotched lizards uta stansburiana article pdf available in hormones and behavior 514. The sideblotched lizard, uta stansburiana, exhibits genetically based throat colors orange, blue, or yellow. Ryan calsbeek barry sinervo the ontogeny of territoriality during maturation received. Journal of animal ecology 2002 71, 5523 ryan calsbeek. Journal of animal ecology 2002 71, 5523 ryan calsbeek and.
Links between climate warming and lizard extinctions. Ucsc has introduced some slight changes to the genome browser chromosome naming scheme with this release. Postlaying or postparturition costs of reproduction are thought to constrain adaptation. Barry sinervo, a professor of ecology and evolutionary biology at ucsc. We tested whether intrasexual selection among males. Barry sinervo phd university of california, santa cruz. Physiological epistasis, ontogenetic conflict and natural.
Phylogenetic analyses reveal that schellackia parasites. Barry sinervo ecology and evolutionary biology, university of california santa cruz verified email at ucsc. Corl a, ar davis, sr kuchta, t comendant, and b sinervo. In uta, we detected pervasive linkage among 9 of 10 loci e. Foxfitness, homerange quality, and aggression in uta stansburiana. Here, we examined the longterm effects of exogenous corticosterone on locomotor performance, resting and active metabolic rate, and hematocrit in male sideblotched lizards uta stansburiana. To detail the steps of this mode of speciation, we studied the geographic variation and evolutionary history of a throat color polymorphism that. The sideblotched lizard uta stansburiana has an annual life. Selective loss of polymorphic mating types is associated with rapid phenotypic evolution during morphic speciation ammon corl1,2, alison r. The sideblotched lizard, uta stansburiana, exhibits conspicuous female and male morphs sinervo 2001a. Here, we describe methods and statistical inference for measuring natural selection in small social groups. E v i e w r s i c the developmental, and consequences of.
Kuchta4, and barry sinervo department of ecology and evolutionary biology, ems a316, university of california, santa cruz, ca 95064 edited by david b. Genetic and maternal determinants of effective dispersal. The sideblotched lizard, uta stansburiana, exhibits genetically based throat colors orange, blue, or. Extinction risk of reptiles and amphibians under climate change, editor. We measured selection on throat color alleles that arises from microgeographic variation in allele frequency at natal sites of side. The goal of our study was to test the following two predictions of the ideal despotic distribution. Evolutionary games, climate and the generation of diversity. Instructional resources, including textbooks and course readers, have become increasingly costly and act as a barrier to student success. Blat on dna is designed to quickly find sequences of 95% and greater similarity of length 25 bases or more. In this study, we investigate variation in natural selection on egg size and laying date as a function of territory quality in a natural population of sideblotched lizards, uta stansburiana. Thermal characteristics of the nest sites and territories of reptiles are simple to quantify huey et al. Barry sinervo ucsc orange, blue, and yellowthroated. Pdf the cellular basis of polymorphic coloration in common. The developmental, physiological, neural and genetical causes and consequences of frequencydependent selection in the wild barry sinervo1 and ryan calsbeek2 1department of ecology and evolutionary biology, university of california, santa cruz, california 95064.
Barry sinervo, ryan calsbeek, physiological epistasis. Increased reproductive output in current reproductive effort should reduce survival or fecundity during future reproductive episodes williams 1966 due to pleiotropic action of genes across fitness components reznick et al. The sideblotched lizard, uta stansburiana, has three morphs differing in color and mating behavior. Evolutionary games, climate and the generation of diversity plos. We studied two phenotypically different populations of sideblotched lizards uta stansburiana, which diverged. Barry sinervo at university of california, santa cruz. Haplotype chromosome, unplaced contig and unlocalized contig names now include their ncbi accession number e. Observing reproductive isolation between closely related populations is especially interesting because it can show the factors initially involved in species formation. Barry does research in evolutionary biology spanning game theory.
Mate choice games, contextdependent good genes, and genetic cycles in the sideblotched lizard, uta stansburiana. Department of biological and environmental science. A poisson model of 10 loci randomly distributed on the 17 chromosomes of uta, pennock et al. Department of ecology and evolutionary biology, university of californiasanta cruz, ca 95064, usa. The morphs have a strong genetic basis that appears to arise from a single mendelian locus sinervo. Uta stansburiana is an ideal system to study such in.
Rps in lacerta vivipara parallel to uta stansburiana resampled sites visited by b. This website is used for testing purposes only and is not intended for general public use. Uta stansburiana, bluethroated males defend territories near their natal site. B sinervo, f mendezdelacruz, db miles, b heulin, e bastiaans. Determining the factors that give rise to reproductive isolation is critical for understanding how species form. Jun 20, 2003 to test these ideas, we examined dispersal behavior as a function of genetic similarity in a polymorphic vertebrate, the annual sideblotched lizard, uta stansburiana. However, parasites detected in american lizard hosts remain uncharacterised. Orangethroated males are aggressive and defend large territories with many females. Rapid formation of reproductive isolation between two. Preparation of this manuscript was supported by a grant from the. Kuchta, tosha comendant,1 and barry sinervo1 1 department of ecology and evolutionary biology ems a316, university of california santa cruz, santa cruz, california 95064 2email. In contrast, the effects of chronic elevated levels of corticosterone are poorly understood, particularly in lizards. This lizard exhibits six color genotypes 7, 8 oo, bo, yo, bb, by, yy that serve as genetic markers for three male strategies 611.
The annual sideblotched lizard, uta stansburiana, exhibits six color genotypes, 14 oo, bo, yo, bb, by, and yy, which serve as markers for three male strategies 15. Room 269, coastal biology building, santa cruz, ca 95064 department of ecology and evolutionary biology at the university of california, santa cruz. Selective loss of polymorphic mating types is associated. In this system, three alternative throat color morphs of males exhibit clear differences in territorial behavior sinervo et al.
Their combined citations are counted only for the first article. Unpublished expansion of her previous years internship project with the environmental studies department and ucsc natural reserves, university of californiasanta cruz. Mar 02, 2010 however, much remains to be understood about the process by which morphs found new species. Natural and sexual selection on the physiological bases of alternative male behaviors in sideblotched lizards barry sinervo. Corticosterone, locomotor performance, and metabolism in. People sinervo lab university of california, santa cruz. Department of ecology and evolutionary biology, earth and. Today we will discuss some of the variation data from dbsnp as displayed on the ucsc genome browser. Gonadotropin hormone modulation of testosterone, immune function, performance, and behavioral tradeoffs among male morphs of the lizard uta stansburiana. Pravosudov, increased testosterone decreases medial cortical volume and neurogenesis in territorial sideblotched lizards uta stansburiana, frontiers in neuroscience, 11, 2017. However, much remains to be understood about the process by which morphs found new species.
1287 1574 1504 1532 333 58 1184 737 82 175 1162 891 303 247 592 1279 1300 225 855 112 1348 173 673 1377 1165 1386 1297 220 1257 255 288 1354 858