24 Works

Data from: Bet-hedging as a mechanism for the evolution of polyandry, revisited

Yukio Yasui & Francisco Garcia-Gonzalez
Females that mate with multiple males (polyandry) may reduce the risk that their eggs are fertilized by a single unsuitable male. About 25 years ago it was hypothesized that bet-hedging could function as a mechanism favoring the evolution of polyandry, but this idea is controversial because theory indicates that bet-hedging via polyandry can compensate the costs of mating only in small populations. Nevertheless, populations are often spatially structured, and even in the absence of spatial...

Data from: Candidate gene analysis suggests untapped genetic complexity in melanin-based pigmentation in birds

Yann X. C. Bourgeois, Joris A. M. Bertrand, Boris Delahaie, Josselin Cornuault, Thomas Duval, Borja Milá & Christophe Thébaud
Studies on melanin-based color variation in a context of natural selection have provided a wealth of information on the link between phenotypic and genetic variation. Here, we evaluated associations between melanic plumage patterns and genetic polymorphism in the Réunion grey white-eye (Zosterops borbonicus), a species in which mutations on MC1R do not seem to play any role in explaining melanic variation. This species exhibits five plumage color variants that can be grouped into three color...

Data from: Tackling intraspecific genetic structure in distribution models better reflects species geographical range

Arnald Marcer, Belén Méndez-Vigo, Carlos Alonso-Blanco & F. Xavier Picó
Genetic diversity provides insight into heterogeneous demographic and adaptive history across organisms’ distribution ranges. For this reason, decomposing single species into genetic units may represent a powerful tool to better understand biogeographical patterns as well as improve predictions of the effects of GCC (global climate change) on biodiversity loss. Using 279 georeferenced Iberian accessions, we used classes of three intraspecific genetic units of the annual plant Arabidopsis thaliana obtained from the genetic analyses of nuclear...

Data from: Unusually limited pollen dispersal and connectivity of Pedunculate oak (Quercus robur) refugial populations at the species' southern range margin

Eva Moracho, Gerardo Moreno, Arndt Hampe & Pedro Jordano
Low-latitudinal range margins of temperate and boreal plant species typically consist of scattered populations that persist locally in microrefugia. It remains poorly understood how their refugial habitats affect patterns of gene flow and connectivity, key components for their long-term viability and evolution. We examine landscape-scale patterns of historical and contemporary gene flow in refugial populations of the widespread European forest tree Pedunculate oak (Quercus robur) at the species' southwestern range margin. We sampled all adult...

Data from: Additive genetic variance in polyandry enables its evolution, but polyandry is unlikely to evolve through sexy or good sperm processes

Laura M. Travers, Leigh W. Simmons & Francisco Garcia-Gonzalez
Polyandry is widespread despite its costs. The sexually selected sperm hypotheses (‘sexy’ and ‘good’ sperm) posit that sperm competition plays a role in the evolution of polyandry. Two poorly studied assumptions of these hypotheses are the presence of additive genetic variance in polyandry and sperm competitiveness. Using a quantitative genetic breeding design in a natural population of Drosophila melanogaster, we first established the potential for polyandry to respond to selection. We then investigated whether polyandry...

Data from: Active and reactive behaviour in human mobility: the influence of attraction points on pedestrians

Mario Gutiérrez-Roig, Oleguer Sagarra, Aitana Oltra, John R. B. Palmer, Frederic Bartumeus, Albert Diaz-Guilera & Josep Perelló
Human mobility is becoming an accessible field of study thanks to the progress and availability of tracking technologies as a common feature of smart phones. We describe an example of a scalable experiment exploiting these circumstances at a public, outdoor fair in Barcelona (Spain). Participants were tracked while wandering through an open space with activity stands attracting their attention. We develop a general modeling framework based on Langevin Dynamics, which allows us to test the...

Data from: Evolutionary history of endemic Sulawesi squirrels constructed from UCEs and mitogenomes sequenced from museum specimens

Melissa T. R. Hawkins, Jennifer A. Leonard, Kristofer M. Helgen, Molly M. McDonough, Larry L. Rockwood & Jesus E. Maldonado
Background: The Indonesian island of Sulawesi has a complex geological history. It is composed of several landmasses that have arrived at a near modern configuration only in the past few million years. It is the largest island in the biodiversity hotspot of Wallacea—an area demarcated by the biogeographic breaks between Wallace’s and Lydekker’s lines. The mammal fauna of Sulawesi is transitional between Asian and Australian faunas. Sulawesi’s three genera of squirrels, all endemic (subfamily Nannosciurinae:...

Data from: Genetic and epigenetic divergence between disturbed and undisturbed subpopulations of a Mediterranean shrub: a 20-year field experiment

Carlos M. Herrera & Pilar Bazaga
Little is known on the potential of ecological disturbance to cause genetic and epigenetic changes in plant populations. We take advantage of a long-term field experiment initiated in 1986 to study the demography of the shrub Lavandula latifolia, and compare genetic and epigenetic characteristics of plants in two adjacent subplots, one experimentally disturbed and one left undisturbed, 20 years after disturbance. Experimental setup was comparable to an unreplicated ‘Before-After-Control-Impact’ (BACI) design where a single pair...

Data from: Condition-dependent trade-offs between sexual traits, body condition and immunity: the effect of novel habitats

Maider Iglesias-Carrasco, Megan Head, Michael Jennions & Carlos Cabido
Background: The optimal allocation of resources to sexual signals and other life history traits is usually dependent on an individual's condition, while variation in the expression of sexual traits across environments depends on the combined effects of local adaptation, mean condition, and phenotypic responses to environment-specific cues that affect resource allocation. A clear contrast can often be drawn between natural habitats and novel habitats, such as forest plantations and urban areas. In some species, males...

Data from: Rapid morphological changes, admixture and invasive success in populations of Ring-necked parakeets (Psittacula krameri) established in Europe

Ariane Le Gros, Sarah Samadi, Dario Zuccon, Raphaël Cornette, Michael P. Braun, Juan Carlos Senar & Philippe Clergeau
The Ring-necked parakeet (Psittacula krameri), native of Asia and Africa, is a very successful invasive species in Europe: it has been present there for over 50 years. A recent study showed that European invasive populations occupy a colder climatic niche than in their native range but the establishment of this tropical species in temperate regions remains unexplained. Two main hypotheses may explain the success of Ring-necked parakeet in Europe: admixture between individuals from different origins...

Data from: A cost for high levels of sperm competition in rodents: increased sperm DNA fragmentation

Javier DelBarco-Trillo, Olga García-Álvarez, Ana Soler, Maximiliano Tourmente, Julian Garde & Eduardo R. S. Roldan
Sperm competition, a prevalent evolutionary process in which the spermatozoa of two or more males compete for the fertilization of the same ovum, leads to morphological and physiological adaptations, including increases in energetic metabolism that may serve to propel sperm faster but that may have negative effects on DNA integrity. Sperm DNA damage is associated with reduced rates of fertilization, embryo and foetal loss, offspring mortality, and mutations leading to genetic disease. We tested whether...

Data from: Concealed by darkness: interactions between predatory bats and nocturnally migrating songbirds illuminated by DNA sequencing

Carlos Ibáñez, Ana G. Popa-Lisseanu, David Pastor-Bevia & Juan L. Garcia-Mudarra
Recently, several species of aerial-hawking bats have been found to prey on migrating songbirds, but details on this behaviour and its relevance for bird migration are still unclear. We sequenced avian DNA in feather-containing scats of the bird-feeding bat Nyctalus lasiopterus from Spain collected during bird migration seasons. We found very high prey diversity, with 31 bird species from eight families of Passeriformes, almost all of which were nocturnally flying sub-Saharan migrants. Moreover, species using...

Data from: Selective logging in tropical forests decreases the robustness of liana-tree interaction networks to the loss of host tree species

Ainhoa Magrach, Rebecca A. Senior, Andrew Rogers, Deddy Nurdin, Suzan Benedick, William F. Laurance, Luis Santamaría & David P. Edwards
Selective logging is one of the major drivers of tropical forest degradation, causing important shifts in species composition. Whether such changes modify interactions between species and the networks in which they are embedded remain fundamental questions to assess the ‘health’ and ecosystem functionality of logged forests. We focus on interactions between lianas and their tree hosts within primary and selectively logged forests in the biodiversity hotspot of Malaysian Borneo. We found that lianas were more...

Data from: Spatio-temporal monitoring of deep-sea communities using metabarcoding of sediment DNA and RNA

Magdalena Guardiola, Owen S. Wangensteen, Pierre Taberlet, Eric Coissac, María Jesús Uriz & Xavier Turon
We assessed spatio-temporal patterns of diversity in deep-sea sediment communities using metabarcoding. We chose a recently developed eukaryotic marker based on the v7 region of the 18S rRNA gene. Our study was performed in a submarine canyon and its adjacent slope in the Northwestern Mediterranean Sea, sampled along a depth gradient at two different seasons. We found a total of 5,569 molecular operational taxonomic units (MOTUs), dominated by Metazoa, Alveolata and Rhizaria. Among metazoans, Nematoda,...

Data from: Decoding colouration of begging traits by the experimental addition of the appetite enhancer cyproheptadine hydrochloride in magpie (Pica pica) nestlings

David Martín-Gálvez & Juan J. Soler
The colouration of some traits in nestlings of altricial birds may influence parental food allocation as it may reflect physical condition or hunger. There is increasing evidence of the relationship between colouration of begging traits and nestling performance. However, evidence of the influence of hunger level on nestling colouration is scarce, mainly because of difficulty of distinguishing between the effects of physical condition and hunger levels. Here, we used the appetite stimulant cyproheptadine hydrochloride to...

Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts

Thomas Larsen, Marc Ventura, Kristine Maraldo, Xavier Triadó-Margarit, Emilio O. Casamayor, Yiming V. Wang, Nils Andersen & Diane M. O'Brien
Supplementation of nutrients by symbionts enables consumers to thrive on resources that might otherwise be insufficient to meet nutritional demands. Such nutritional subsidies by intracellular symbionts has been well studied; however, supplementation of de novo synthesized nutrients to hosts by extracellular gut symbionts is poorly documented, especially for generalists with relatively undifferentiated intestinal tracts. Although gut symbionts facilitate degradation of resources that would otherwise remain inaccessible to the host, such digestive actions alone cannot make...

Data from: The role of selection and historical factors in driving population differentiation along an elevational gradient in an island bird

Joris A. M. Bertrand, Boris Delahaie, Yann X. C. Bourgeois, Thomas Duval, Ricardo García-Jiménez, Josselin Cornuault, Benoit Pujol, Christophe Thébaud & Borja Mila
Adaptation to local environmental conditions and the range dynamics of populations can influence evolutionary divergence along environmental gradients. Thus, it is important to investigate patterns of both phenotypic and genetic variation among populations to reveal the respective roles of these two types of factors in driving population differentiation. Here, we test for evidence of phenotypic and genetic structure across populations of a passerine bird (Zosterops borbonicus) distributed along a steep elevational gradient on the island...

Data from: Comparative spatial genetics and epigenetics of plant populations: heuristic value and a proof of concept

Carlos M. Herrera, Mónica Medrano & Pilar Bazaga
Despite the recent upsurge of interest on natural epigenetic variation of nonmodel organisms, factors conditioning the spatial structure of epigenetic diversity in wild plant populations remain virtually unexplored. We propose that information on processes shaping natural epigenetic variation can be gained using the spatial structure of genetic diversity as null model. Departures of epigenetic isolation-by-distance (IBD) patterns from genetic IBD patterns for the same sample, particularly differences in slope of similarity-distance regressions, will reflect the...

Data from: Historical citizen science to understand and predict climate-driven trout decline

Miguel Clavero, Miquel Ninyerola, Virgilio Hermoso, Ana Filipa Filipe, Magda Pla, Daniel Villero, Lluís Brotons & Miguel Delibes
Historical species records offer an excellent opportunity to test the predictive ability of range forecasts under climate change, but researchers often consider that historical records are scarce and unreliable, besides the datasets collected by renowned naturalists. Here, we demonstrate the relevance of biodiversity records developed through citizen-science initiatives generated outside the natural sciences academia. We used a Spanish geographical dictionary from the mid-nineteenth century to compile over 10 000 freshwater fish records, including almost 4...

Data from: Genetic variation but weak genetic covariation between pre- and postcopulatory episodes of sexual selection in Drosophila melanogaster

Laura M. Travers, Francisco Garcia-Gonzalez & Leigh W. Simmons
When females mate polyandrously, male reproductive success depends both on the male's ability to attain matings and his ability to outcompete rival males in the fertilization of ova post copulation. Increased investment in ejaculate components may trade-off with investment in precopulatory traits due to resource allocation. Alternatively, pre- and postcopulatory traits could be positively related if individuals can afford to invest heavily in traits advantageous at both episodes of selection. There is empirical evidence for...

Data from: Developmental mechanisms of stripe patterns in rodents

Ricardo Mallarino, Corneliu Henegar, Mercedes Mirasierra, Marie Manceau, Carsten Schradin, Mario Vallejo, Slobodan Beronja, Gregory S. Barsh & Hopi E. Hoekstra
Mammalian colour patterns are among the most recognizable characteristics found in nature and can have a profound impact on fitness. However, little is known about the mechanisms underlying the formation and subsequent evolution of these patterns. Here we show that, in the African striped mouse (Rhabdomys pumilio), periodic dorsal stripes result from underlying differences in melanocyte maturation, which give rise to spatial variation in hair colour. We identify the transcription factor ALX3 as a regulator...

Data from: Rapid postglacial diversification and long-term stasis within the songbird genus Junco: phylogeographic and phylogenomic evidence

Guillermo Friis, Pau Aleixandre, Ricardo Rodriguez-Estrella, Adolfo G. Navarro-Sigüenza & Borja Milá
Natural systems composed of closely-related taxa that vary in the degree of phenotypic divergence and geographic isolation, provide an opportunity to investigate the rate of phenotypic diversification and the relative roles of selection and drift in driving lineage formation. The genus Junco (Aves: Emberizidae) of North America includes parapatric northern forms that are markedly divergent in plumage pattern and color, in contrast to geographically isolated southern populations in remote areas that show moderate phenotypic divergence....

Data from: Ancient DNA reveals differences in behaviour and sociality between brown bears and extinct cave bears

Gloria Gonzalez-Fortes, Aurora Grandal-D'Anglade, Ben Kolbe, Daniel Fernandes, Ioana N. Meleg, Ana Garcia-Vazquez, Ana C. Pinto-Llona, Silviu Constantin, Trino J. De Torres, Jose E. Ortiz, Christine Frischauf, Gernot Rabeder, Michael Hofreiter, Axel Barlow & Gloria G. Fortes
Ancient DNA studies have revolutionized the study of extinct species and populations, providing insights on phylogeny, phylogeography, admixture and demographic history. However, inferences on behaviour and sociality have been far less frequent. Here, we investigate the complete mitochondrial genomes of extinct Late Pleistocene cave bears and middle Holocene brown bears that each inhabited multiple geographically proximate caves in northern Spain. In cave bears, we find that, although most caves were occupied simultaneously, each cave almost...

Data from: Risk assessment of pesticide seed treatment for farmland birds using refined field data

Ana Lopez-Antia, Jordi Feliu, Pablo R. Camarero, Manuel E. Ortiz-Santaliestra & Rafael Mateo
Due to reductions in winter food resources, newly sown cereal seeds have become a key component of many bird species' diets, but these seeds are often treated with pesticides that may cause toxic effects. To complete an appropriate risk assessment, data on treated seed toxicity need to be combined with information about the risk of exposure of birds in the field and the factors that modulate such exposure. We studied the abundance of pesticide-treated seeds...

Registration Year

  • 2016
    24

Resource Types

  • Dataset
    24

Affiliations

  • Spanish National Research Council
    24
  • Museo Nacional de Ciencias Naturales
    3
  • University of Western Australia
    3
  • University of Barcelona
    2
  • Paul Sabatier University
    2
  • Estación Biológica de Doñana
    1
  • Howard Hughes Medical Institute
    1
  • Fred Hutchinson Cancer Research Center
    1
  • National Museum of Natural History
    1
  • University of Extremadura
    1