32 Works

Data from: Drought legacies are short, prevail in dry conifer forests and depend on growth variability.

Antonio Gazol, J. Julio Camarero, Raúl Sánchez-Salguero, Sergio Vicente-Serrano, Xavier Serra-Maluquer, Emilia Gutiérrez, Martín De Luis, Gabriel Sangüesa-Barreda, Klemen Novak, Vicente Rozas, Pedro A. Tiscar, Juan C. Linares, Edurne Martínez Del Castillo, Montse Ribas, Ignacio García-González, Fernando Silla, Álvaro Camisón, Mar Genova, Jose Miguel Olano, Ana-Maria Hereș, Jorge Curiel-Yuste, Luis A. Longares, Andrea Hevia, Miquel Tomas-Burguera & Juan Galván
The negative impacts of drought on forest growth and productivity last for several years generating legacies, although the factors that determine why such legacies vary across sites and tree species remain unclear. We used an extensive network of tree-ring width (RWI, ring-width index) records of 16 tree species from 567 forests, and high-resolution climate and NDVI datasets across Spain during the common period 1982‒2008 to test the hypothesis that climate conditions and growth features modulate...

Data from: Maternal allocation in eggs when counting on helpers in a cooperatively breeding bird

Juliana Valencia, Concha Mateos, Carlos De La Cruz & Juan Carranza
For cooperatively breeding birds, it has been proposed that breeders should reduce their investment in eggs when they count on helpers, because this can be compensated for by helpers provisioning of nestlings. Data from some species have supported this prediction, but this is not the case in others. It has also been proposed that mothers should not reduce but rather increase investment if the presence of helpers enhances the reproductive value of offspring, a pattern...

Data from: Wintering areas predict age-related breeding phenology in a migratory passerine bird

Cosme López-Calderón, Keith A. Hobson, Alfonso Marzal, Javier Balbontín, Marivel Reviriego, Sergio Magallanes, Luz García-Longoria, Florentino De Lope & Anders P. Møller
Understanding connections between breeding, stopover and wintering grounds for long-distance migratory birds can provide important insight into factors influencing demography and the strength of carry-over effects among various periods of the annual cycle. Using previously described, multi-isotope (δ13C, δ15N, δ2H) feather isoscapes for Africa, we identified the most probable wintering areas for house martins (Delichon urbica) breeding at Badajoz in southwestern Spain. We identified two most-probable wintering areas differing in latitude in West Africa. We...

Elemental concentrations in representative species of the ICRP's Reference Animals and Plants and associated soils in terrestrial Mediterranean ecosystems in Spain

J. Guillén, M. Izquierdo, S. Young, C. Wells, C.L. Barnett, N.A. Beresford, A. Baeza, A. Salas, A. Muñóz-Serrano, J.M. Corrales-Vázquez, J.G. Muñoz-Muñoz, E. Tovar & J.S. Chaplow
Data comprise stable element concentrations in terrestrial Reference Animals and Plants (RAPs) and corresponding whole-body concentration ratios determined in two different Mediterranean ecosystems: a Pinewood and a Dehesa (grassland with disperse tree cover). The International Commission on Radiological Protection (ICRP) RAPs considered in the Pinewood ecosystem were Pine Tree and Wild Grass; whereas in the Dehesa ecosystem those considered were Deer, Rat, Earthworm, Bee, Frog, Duck and Wild Grass. The data include: elemental concentrations in...

Transfer parameters for radionuclides and radiologically significant stable elements to foodstuffs in Spain

J. Guillen, F.M. Gómez Polo, A. Baeza & M.A. Ontalba
Data comprise of radionuclide and stable element concentrations in vegetal and animal food and feedstuffs, and their corresponding transfer coefficients and concentration ratios determined in Mediterranean ecosystems in Spain. The considered foodstuff groups are: cereals, grapevine (including wine), olive tree (including olive oil), lamb, beef, pork, and dairy products from sheep, goat and cow. The data include: elemental and radioactive concentration in soil, plants, food and feedstuffs; dry to fresh ratios for foodstuffs; animal feeding...

Data from: Lifespan and reproductive cost explain interspecific variation in the optimal onset of reproduction

Emeline Mourocq, Pierre Bize, Sandra Bouwhuis, Russell Bradley, Anne Charmantier, Carlos De La Cruz, Szymon Marian Obniak, Richard H. M. Espie, Márton Herenyi, Hermann Hötker, Oliver Kruger, John Marzluff, Anders P. Møller, Shinichi Nakagawa, Richard A. Phillips, Andrew N. Radford, Alexandre Roulin, János Török, Juliana Valencia, Martijn Van De Pol, Ian G. Warkentin, Isabel S. Winney, Andrew G. Wood, Michael Griesser & Szymon M. Drobniak
Fitness can be profoundly influenced by the age at first reproduction (AFR), but to date the AFR-fitness relationship only has been investigated intraspecifically. Here we investigated the relationship between AFR and average lifetime reproductive success (LRS) across 34 bird species. We assessed differences in the deviation of the Optimal AFR (i.e., the species-specific AFR associated with the highest LRS) from the age at sexual maturity, considering potential effects of life-history as well as social and...

Data from: Genetic structure and effective population sizes in European red deer (Cervus elaphus) at a continental scale: insights from microsatellite DNA

Frank E. Zachos, Alain C. Frantz, Ralph Kuehn, Sabine Bertouille, Marc Colyn, Magdalena Niedzialkowska, Javier Pérez-González, Anna Skog, Nikica Šprem & Marie-Christine Flamand
We analysed more than 600 red deer (Cervus elaphus) from large parts of its European distribution range at 13 microsatellite loci, presenting the first continent-wide study of this species using nuclear markers. Populations were clearly differentiated (overall FST = 0.166, Jost’s Dest = 0.385), and the BAPS clustering algorithm yielded mainly geographically limited and adjacent genetic units. When forced into only three genetic clusters our data set produced a very similar geographic pattern as previously...

Data from: A longitudinal study of age-related changes in Haemoproteus infection in a passerine bird

Alfonso Marzal, Javier Balbontín, Maribel Reviriego, Luz García-Longoria, Carmen Relinque, Ignacio G Hermosell, Sergio Magallanes, Cosme López-Calderón, Florentino De Lope & Anders Pape Moller
Blood parasites such as malaria and related haemosporidians commonly infect vertebrate species including birds. Understanding age-specific patterns of parasite infections is crucial for quantifying the fitness consequences of parasitism for hosts and for understanding parasite transmission dynamics. We analyzed longitudinal and cross-sectional infection data in house martins Delichon urbica, a migratory bird suffering from intense haemosporidian infection. We separated within- from among-individual effects of age on prevalence. Our results showed that the probability of blood...

Data from: Taxonomic and functional diversity in Mediterranean pastures: Insights on the biodiversity-productivity trade-off

Victor Rolo, David Rivest, Miren Lorente, Jens Kattge & Gerardo Moreno
Agricultural intensification is one of the main causes of biodiversity loss world-wide. The inclusion of semi-natural features in agricultural landscapes is suggested as a means of enhancing farm biodiversity, but this practice may have potential negative effects on yield production. Moreover, little evidence exists for effects of semi-natural features on other components of biodiversity, such as functional diversity. Yet this could provide a more comprehensive understanding of biodiversity–productivity trade-offs. Here, we report the effects of...

Data from: The role of fecundity and sexual selection in the evolution of size and sexual size dimorphism in New World and Old World voles (Rodentia: Arvicolinae)

Vicente García-Navas, Timothée Bonnet, Raúl Bonal & Erik Postma
Evolutionary ecologists dating back to Darwin (1871) have sought to understand why males are larger than females in some species, and why females are the larger sex in others. Although the former is widespread in mammals, rodents and other small mammals usually exhibit low levels of sexual size dimorphism (SSD). Here, we investigate patterns of sexual dimorphism in 34 vole species belonging to the subfamily Arvicolinae in a phylogenetic comparative framework. We address the potential...

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: Polyploidy and microsatellite variation in the relict tree Prunus lusitanica L.: how effective are refugia in preserving genotypic diversity of clonal taxa?

Carlos García-Verdugo, Juan Antonio Calleja, Pablo Vargas, Luis Silva, Orlanda Moreira & Fernando Pulido
Refugia are expected to preserve genetic variation of relict taxa, especially in polyploids, because high gene dosages could prevent genetic erosion in small isolated populations. However, other attributes linked to polyploidy, such as asexual reproduction, may strongly limit the levels of genetic variability in relict populations. Here, ploidy levels and patterns of genetic variation at nuclear microsatellite loci were analysed in Prunus lusitanica, a polyploid species with clonal reproduction that is considered a paradigmatic example...

Data from: Assessing the effects of human activities on the foraging opportunities of migratory shorebirds in Austral high-latitude bays

Juan G. Navedo, Claudio Verdugo, Ignacio Rodríguez-Jorquera, Jose M. Abad-Gómez, Cristián G. Suazo, Luis E. Castañeda, Valeria Araya, Jorge Ruiz & Jorge S. Gutiérrez
Human presence at intertidal areas could impact coastal biodiversity, including migratory waterbird species and the ecosystem services they provide. Assessing this impact is therefore essential to develop management measures compatible with migratory processes and associated biodiversity. Here, we assess the effects of human presence on the foraging opportunities of Hudsonian godwits (Limosa haemastica, a trans-hemispheric migratory shorebird) during their non-breeding season on Chiloé Island, southern Chile. We compared bird density and time spent foraging in...

Data from: Phylogeography of a Tertiary relict plant, Meconopsis cambrica (Papaveraceae), implies the existence of northern refugia for a temperate herb

Francisco J. Valtueña, Christopher D. Preston & Joachim W. Kadereit
The perennial herb Meconopsis cambrica, a western European endemic, is the only European species of the otherwise Himalayan genus Meconopsis and has been interpreted as a Tertiary relict species. Using rbcL and ITS sequence variation, we date the split between M. cambrica and its sister clade Papaver s.str. to the Middle to Upper Miocene (12.8 My, 6.4-19.2 My HPD). Within M. cambrica, cpDNA sequence variation reveals the existence of two groups of populations with a...

Data from: Spot size, distance, and emissivity errors in field applications of infrared thermography

Glenn Tattersall & Núria Playà-Montmany
Infrared thermography is increasingly emerging as an analytical approach within the thermal ecology research community, providing unique and rapid temperature information crucial to understanding how plants and animals exchange heat with their environment. What is difficult to appreciate are the numerous ways in which thermography may still yield inaccurate (i.e., deviation from the “correct” value) information if certain tenets are not followed. In this paper, we examine, demonstrate, and discuss these tenets with an aim...

Data from: Generational shift in spring staging site use by a long-distance migratory bird

Mo A. Verhoeven, Jelle A.H. Loonstra, Jos C.E.W. Hooijmeijer, Jose A. Masero, Theunis Piersma, Nathan R. Senner, Jos C. E. W. Hooijmeijer & A. H. Jelle Loonstra
In response to environmental change, species have been observed altering their migratory behaviours. Few studies, however, have been able to determine whether these alterations resulted from inherited, plastic, or flexible changes. Here we present a unique observation of a rapid population-level shift in migratory routes — over 300 km from Spain to Portugal — by continental black-tailed godwits Limosa limosa limosa. This shift did not result from adult godwits changing staging sites, as adult site...

Data from: Genomic evidence of demographic fluctuations and lack of genetic structure across flyways in a long distance migrant, the European turtle dove

Luciano Calderón, Leonardo Campagna, Thomas Wilke, Hervé Lormee, Cyril Eraud, Jenny C. Dunn, Gregorio Rocha, Pavel Zehtindjiev, Dimitrios E. Bakaloudis, Benjamin Metzger, Jacopo G. Cecere, Melanie Marx & Petra Quillfeldt
Background: Understanding how past climatic oscillations have affected organismic evolution will help predict the impact that current climate change has on living organisms. The European turtle dove, Streptopelia turtur, is a warm-temperature adapted species and a long distance migrant that uses multiple flyways to move between Europe and Africa. Despite being abundant, it is categorized as vulnerable because of a long-term demographic decline. We studied the demographic history and population genetic structure of the European...

Data from: Identifying management actions to increase foraging opportunities for shorebirds at semi-intensive shrimp farms

Juan G. Navedo, Guillermo Fernández, Nelson Valdivia, Mark C. Drever & Jose A. Masero
The expansion of aquaculture has resulted in widespread habitat conversion throughout the world. Identifying beneficial management measures may dramatically reduce negative impacts of aquaculture for migratory birds. We studied how densities of foraging shorebirds varied at ponds within a semi-intensive shrimp aquaculture farm on the north-western coast of Mexico, as related to timing of harvest and tidal cycles. Further, we estimated the total daily available area for each shorebird species throughout two entire harvesting seasons...

Data from: Unexpected consequences of a drier world: evidence that delay in late summer rains biases the population sex ratio of an insect

Raul Bonal, Marisa Hernández, Josep Maria Espelta, Alberto Muñoz & José M. Aparicio
The complexity of animal life histories makes it difficult to predict the consequences of climate change on their populations. In this paper, we show, for the first time, that longer summer drought episodes, such as those predicted for the dry Mediterranean region under climate change, may bias insect population sex ratio. Many Mediterranean organisms, like the weevil Curculio elephas, become active again after summer drought. This insect depends on late summer rainfall to soften the...

Avian MHC copy number variation is associated with helminth richness

Piotr Minias, Jorge Gutiérrez & Peter Dunn
Genes of the Major Histocompatibility Complex (MHC) play a key role in the adaptive immunity of vertebrates, as they encode receptors responsible for recognition of antigens. Evolutionary history of the MHC proceeded through numerous gene duplications, which increases the spectrum of pathogens recognized by individuals. Although pathogen-mediated selection is believed to be a primary driver of MHC expansion over evolutionary times, empirical evidence for this association is virtually lacking. Here, we used an extensive dataset...

Data from: Too salty for you? Changes of diet in the laughing gull nestlings during the growing period

Erick González-Medina, José Alfredo Castillo-Guerrero, José A. Masero & Guillermo Fernández
In many seabird and waterbird species, salinity can impose physiological stress on recently hatched chicks because they have a limited capacity to excrete salt loads. In response, parents can select low-salt food for their nestlings in the first stage of their growth. We determined the growth-related variation in the diet of laughing gull Leucophaeus atricilla nestlings by using stable isotope analysis of feathers. Isotopic measurement of hatchling down reflects the mother's diet before laying eggs....

Flowering synchrony drives reproductive success in a wind-pollinated tree

Michał Bogdziewicz, Mario Pesendorfer, Elizabeth Crone, Carlos Pérez-Izquierdo & Raul Bonal
Synchronized and quasi-periodic production of seeds by plant populations, known as masting, is implicated in many ecological processes, but how it arises remains poorly understood. Flowering and pollination dynamics are hypothesized to provide the mechanistic link for the observed relationship between weather and population‐level seed production. We report the first experimental test of the phenological synchrony hypotheses as a driver of pollen limitation in mast seeding oaks (Quercus ilex). Higher flowering synchrony yielded greater pollination...

Data from: Hybrid speciation by sorting of parental incompatibilities in Italian sparrows

Jo S. Hermansen, Fredrik Haas, Richard I. Bailey, Alexander J. Nederbragt, Cassandra N. Trier, Alfonso Marzal, Glenn-Peter Sætre & Glenn-Peter Saetre
Speciation by hybridization is emerging as a significant contributor to biological diversification. Yet, little is known about the relative contributions of (i) evolutionary novelty and (ii) sorting of preexisting parental incompatibilities to the build-up of reproductive isolation under this mode of speciation. Few studies have addressed empirically whether hybrid animal taxa are intrinsically isolated from their parents, and no study has so far investigated by which of the two aforementioned routes intrinsic barriers evolve. Here,...

Data from: Peripatric speciation in an endemic Macaronesian plant after recent divergence from a widespread relative

Francisco J. Valtueña, Tomás Rodríguez-Riaño, Josefa López, Carlos Mayo & Ana Ortega-Olivencia
The Macaronesian Scrophularia lowei is hypothesized to have arisen from the widespread S. arguta on the basis of several phylogenetic studies of the genus, but sampling has been limited. Although these two annual species are morphologically distinct, the origin of S. lowei is unclear because genetic studies focused on this Macaronesian species are lacking. We studied 5 S. lowei and 25 S. arguta populations to determine the relationship of both species and to infer the...

Data from: Intraspecific haplotype diversity in Cherleria sedoides L. (Caryophyllaceae) is best explained by chloroplast capture from an extinct species

Abigail J. Moore, Francisco J. Valtueña, Markus S. Dillenberger, Joachim W. Kadereit & Chris D. Preston
Cherleria sedoides, a plant species widespread in alpine areas of the major European mountain ranges and in Scotland, contains two highly divergent chloroplast haplotype groups, one widespread (WH) and one present only in some populations in the Alps (AH). We investigated whether this haplotype diversity is the result of (1) intraspecific differentiation, (2) retention of an ancestral polymorphism or (3) hybridisation. For this purpose, 106 matK sequences from throughout the Caryophyllaceae and 80 trnQ-rps16 and...

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