10 Works

Data from: Phylogenetic conservatism in plant phenology

T. Jonathan Davies, Elizabeth M. Wolkovich, Nathan J. B. Kraft, Nicolas Salamin, Jenica M. Allen, Toby R. Ault, Julio L. Betancourt, Kjell Bolmgren, Elsa E. Cleland, Benjamin I. Cook, Theresa M. Crimmins, Susan J. Mazer, Gregory J. McCabe, Stephanie Pau, Jim Regetz, Mark D. Schwartz & Steven E. Travers
Phenological events – defined points in the life cycle of a plant or animal – have been regarded as highly plastic traits, reflecting flexible responses to various environmental cues. The ability of a species to track, via shifts in phenological events, the abiotic environment through time might dictate its vulnerability to future climate change. Understanding the predictors and drivers of phenological change is therefore critical. Here, we evaluated evidence for phylogenetic conservatism – the tendency...

Data from: The balanced-lethal system of crested newts: a ghost of sex chromosomes past?

Christine Grossen, Samuel Neuenschwander & Nicolas Perrin
Balanced lethal systems are more than biological curiosities: As theory predicts, they should quickly be eliminated through the joint forces of recombination and selection. That such systems might become fixed in natural populations poses a challenge to evolutionary theory. Here we address the case of a balanced lethal system fixed in crested newts and related species, which makes 50% of offspring die early in development. All adults are heteromorphic for chromosome pair 1. The two...

Data from: Cryptic recombination in the ever-young sex chromosomes of Hylid frogs

Rafael F. Guerrero, Mark Kirkpatrick, Nicolas Perrin, N. Perrin, R. F. Guerrero & M. Kirkpatrick
Sex chromosomes are expected to evolve suppressed recombination, which leads to degeneration of the Y and heteromorphism between the X and Y. Some sex chromosomes remain homomorphic, however, and the factors that prevent degeneration of the Y in these cases are not understood. The homomorphic sex chromosomes of the European tree frogs (Hyla spp.) present an interesting paradox. Recombination in males has never been observed in crossing experiments, but molecular data are suggestive of occasional...

Data from: Asexual reproduction in introduced and native populations of the ant Cerapachys biroi

Daniel J. C. Kronauer, Naomi E. Pierce & Laurent Keller
Asexual reproduction is particularly common among introduced species, probably because it helps to overcome the negative effects associated with low population densities during colonization. The ant Cerapachys biroi has been introduced to tropical and subtropical islands around the world since the beginning of the last century. In this species, workers can reproduce via thelytokous parthenogenesis. Here we use genetic markers to reconstruct the history of anthropogenic introductions of C. biroi, and to address the prevalence...

Data from: The influence of social structure on brood survival and development in a socially polymorphic ant: insights from a cross-fostering experiment

Jessica Purcell, Michel Chapuisat, J. Purcell & M. Chapuisat
Animal societies vary in the number of breeders per group, which affects many socially and ecologically relevant traits. In several social insect species, including our study species Formica selysi, the presence of either one or multiple reproducing females per colony is generally associated with differences in a suite of traits such as the body size of individuals. However, the proximate mechanisms and ontogenetic processes generating such differences between social structures are poorly known. Here, we...

Data from: Scale-dependent adaptive evolution and morphological convergence to climatic niche in Californian eriogonoids (Polygonaceae)

Anna Kostikova, Nicolas Salamin, Peter B. Pearman, Glenn Litsios, Sarah Burgy & Laura Milani
Aim: Macroevolutionary patterns and processes change substantially depending on levels of taxonomic and ecological organization, and the resolution of environmental and spatial variability. In comparative methods, the resolution of environmental and spatial variability often defines the number of selective regimes used to test whether phenotypic characteristics are adaptively correlated with the environment. Here, we examine how investigator choice of the number of selective regimes, determined by varying the resolution of among-species variability in the species...

Data from: Evolutionary history of almond tree domestication in the Mediterranean basin

Malou Delplancke, Nadir Alvarez, Laure Benoit, Maria Anahi Espindola, Helene I. Joly, Samuel Neuenschwander & Nils Arrigo
Genetic diversity of contemporary domesticated species is shaped by both natural and human-driven processes. However, until now, little is known about how domestication has imprinted the variation of fruit tree species. In this study, we reconstruct the recent evolutionary history of the domesticated almond tree, Prunus dulcis, around the Mediterranean Basin, using a combination of nuclear and chloroplast microsatellites (i.e. SSRs) to investigate patterns of genetic diversity. Whereas conservative chloroplast SSRs show a widespread haplotype...

Data from: Sex-specific estimates of dispersal show female philopatry and male dispersal in a promiscuous amphibian, the alpine salamander (Salamandra atra)

Véronique Helfer, Thomas Broquet, Luca Fumagalli & L. Fumagalli
Amphibians display wide variations in life-history traits and life cycles that should prove useful to explore the evolution of sex-biased dispersal, but quantitative data on sex-specific dispersal patterns are scarce. Here we focused on Salamandra atra, an endemic alpine species showing peculiar life-history traits. Strictly terrestrial and viviparous, the species has a promiscuous mating system and females reproduce only every three to four years. In the present study, we provide quantitative estimates of asymmetries in...

Data from: Phylogenetic plant community structure along elevation is lineage specific

Charlotte Ndiribe, Loïc Pellissier, Silvia Antonelli, Anne Dubuis, Julien Pottier, Pascal Vittoz, Antoine Guisan & Nicolas Salamin
The trend of closely related taxa to retain similar environmental preferences mediated by inherited traits suggests that several patterns observed at the community scale originate from longer evolutionary processes. While the effects of phylogenetic relatedness have been previously studied within a single genus or family, lineage-specific effects on the ecological processes governing community assembly have rarely been studied for entire communities or flora. Here, we measured how community phylogenetic structure varies across a wide elevation...

Data from: Morphological, ecological and genetic aspects associated with endemism in the Fly Orchid group

Yann Triponez, Nils Arrigo, Loïc Pellissier, Bertrand Schatz & Nadir Alvarez
The European genus Ophrys (Orchidaceae) is famous for its insect-like floral morphology, an adaptation for a pseudocopulatory pollination strategy involving Hymenoptera males. A large number of endemic Ophrys species have recently been described, especially within the Mediterranean Basin, which is one of the major species diversity hotspots. Subtle morphological variation and specific pollinator dependence are the two main perceptible criteria for describing numerous endemic taxa. However, the degree to which endemics differ genetically remains a...

Registration Year

  • 2012
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Resource Types

  • Dataset
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Affiliations

  • University of Lausanne
    10
  • Swiss Institute of Bioinformatics
    3
  • Centre d'Ecologie Fonctionnelle et Evolutive
    2
  • University of Arizona
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  • University of the Basque Country
    1
  • The University of Texas at Austin
    1
  • University of Neuchâtel
    1
  • Lund University
    1
  • University of California, San Diego
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  • Australian National University
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  • McGill University
    1
  • University of Connecticut
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  • Swedish University of Agricultural Sciences
    1
  • University of Wisconsin–Milwaukee
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  • United States Geological Survey
    1