42 Works

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...

The causes and consequences of pest population variability in agricultural landscapes

Daniel Paredes, Jay Rosenheim & Daniel Karp
Variability in population densities is key to the ecology of natural systems but also has great implications for agriculture. Farmers’ decisions are heavily influenced by their risk-aversion to pest outbreaks that result in major yield losses. However, the need for long-term pest population data across many farms has prevented researchers from exploring the drivers and implications of pest population variability. Here, we demonstrate the critical importance of population variability for sustainable farming by analyzing 13-yrs...

Climate change and lithium mining influence flamingo abundance in the Lithium Triangle

Jorge Gutiérrez, Johnnie Moore, Patrick Donnelli, Cristina Dorador, Juan Navedo & Nathan Senner
The development of technologies to slow climate change has been identified as a global imperative. Nonetheless, such ‘green’ technologies can potentially have negative impacts on biodiversity. We explored how climate change and the mining of lithium for green technologies influence surface water availability, primary productivity, and the abundance of three threatened and economically important flamingo species in the ‘Lithium Triangle’ of the Chilean Andes. We combined climate and primary productivity data with remotely sensed measures...

Tree growth response to drought partially explains regional-scale growth and mortality patterns in Iberian forests

Antonio Gazol, J. Julio Camarero, Raúl Sánchez-Salguero, Miguel A. Zavala, Xavier Serra-Maluquer, Emilia Gutiérrez, Martín De Luis, Gabriel Sangüesa-Barreda, Klemen Novak, Vicente Rozas, Pedro A. Tíscar, Juan C. Linares, Edurne Martínez Del Castillo, Montse Ribas, Ignacio García-González, Fernando Silla, Álvaro Camison, Mar Génova, José M. Olano, Ana-Maria Hereş, Jorge Curiel Yuste, Luis A. Longares, Andrea Hevia, J. Diego Galván & Paloma Ruiz-Benito
To quantify responses to drought from different data sources we take advantage of an extensive network of cross-dated tree-ring data with increment cores from 16 tree species sampled across the Spanish Iberian Peninsula (hereafter abbreviated as RWI-net), and of the Spanish National Forest Inventory (hereafter abbreviated as NFI) sampling tree and plot level data each km in forested areas. We selected the five most severe droughts that have affected each selected RWI-net population in the...

Antibacterial and anatomical defences in an oil contaminated, vulnerable seaduck

Karsten Laursen, Anders Pape Møller, Jorge Izaguirre & Alfonso Marzal
Oil-spills have killed thousands of birds during the last 100 years, but non-lethal effects of oil-spills on birds remain poorly studied. We measured phenotype characters in 279 eiders Somateria mollissima of which 13.6% were oiled. We tested the hypotheses that (1) the morphology of eiders does not change due to oil contamination; (2) the anatomy of organs reflects the physiological reaction to contamination e.g. increase in metabolic demand, increase in food intake and counteracting toxic...

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...

Data from: Uropygial gland volume and malaria infection are related to survival in migratory house martins

Sergio Magallanes, Luz García-Longoria, Cosme López-Calderón, Maribel Reviriego, Florentino De Lope, Anders P. Moller & Alfonso Marzal
Pathogens such as bacteria, fungi and malaria and related haemosporidians provoke negative effects on the fitness of their hosts. Animals have developed a range of defensive mechanisms to resist or eliminate these parasitic infections and their negative fitness costs. The uropygial gland secretion has been proposed to act as defensive barrier of skin and plumage in the fight against bacteria and fungi, and may prevent birds from acquiring haemosporidian infections. Thus, the secretion of uropygial...

Data from: Evolutionary significance of the invasion of introduced populations into the native range of Meconopsis cambrica

Francisco J Valtueña, Christopher D Preston & Joachim W Kadereit
The long history of the deliberate or accidental, human-mediated dispersal of flowering plants has led to the introduction of foreign genotypes of many species into areas of Europe hitherto occupied by potentially distinct native populations. Studies of the genetic and evolutionary consequences of such changes are handicapped by the difficulty of identifying the surviving native populations of many species in the absence of clear morphological differences. We investigated the relationship between putative native and introduced...

Data from: The interplay among acorn abundance and rodent behavior drives the spatial pattern of seedling recruitment in mature Mediterranean oak forests

Pau Sunyer, Ester Boixadera, Alberto Muñoz, Raúl Bonal & Josep Maria Espelta
The patterns of seedling recruitment in animal-dispersed plants result from the interactions among environmental and behavioral variables. However, we know little on the contribution and combined effect of both kinds of variables. We designed a field study to assess the interplay between environment (vegetation structure, seed abundance, rodent abundance) and behavior (seed dispersal and predation by rodents, and rooting by wild boars), and their contribution to the spatial patterns of seedling recruitment in a Mediterranean...

Data from: How much would it cost to monitor farmland biodiversity in Europe?

Ilse R. Geijzendorffer, Stefano Targetti, Manuel K. Schneider, Dick J. Brus, Philippe Jeanneret, Robert H. G. Jongman, Martin Knotters, Davide Viaggi, Siyka Angelova, Michaela Arndorfer, Debra Bailey, Katalin Balzacs, András Báldim, Marion M. B. Bogers, Robert G.H. Bunce, Jean-Philippe Choisis, Peter Dennis, Sebastian Eiter, Wendy Fjellstad, Jürgen F. Friedel, Tiziano Gomiero, Arjan Griffioen, Max Kainz, Anikó Kovács-Hostyánszki, Gisela Lüscher … & András Báldi
To evaluate progress on political biodiversity objectives, biodiversity monitoring provides information on whether intended results are being achieved. Despite scientific proof that monitoring and evaluation increase the (cost) efficiency of policy measures, cost estimates for monitoring schemes are seldom available, hampering their inclusion in policy programme budgets. Empirical data collected from 12 case studies across Europe were used in a power analysis to estimate the number of farms that would need to be sampled per...

Data from: When Siberia came to the Netherlands: the response of continental black-tailed godwits to a rare spring weather event

Nathan R. Senner, Mo A. Verhoeven, José M. Abad-Gómez, Jorge S. Gutiérrez, Jos C. E. W. Hooijmeijer, Rosemarie Kentie, José A. Masero, T. Lee Tibbitts & Theunis Piersma
1. Extreme weather events have the potential to alter both short- and long-term population dynamics as well as community- and ecosystem-level function. Such events are rare and stochastic, making it difficult to fully document how organisms respond to them and predict the repercussions of similar events in the future. 2. To improve our understanding of the mechanisms by which short-term events can incur long-term consequences, we documented the behavioural responses and fitness consequences for a...

Data from: Pro-inflammatory immune response is linked to wintering habitat in a migratory shorebird

José Mª Abad-Gómez, Auxiliadora Villegas, Jorge S. Gutiérrez, Manuel Parejo, Juan G. Navedo, Juan M. Sánchez-Guzmán & Afonso Rocha
Migratory shorebirds (Charadrii) show a strong dichotomy in their breeding and wintering strategies: Arctic-breeding species typically spend the wintering season in marine habitats, while more southerly breeding species tend to do so in freshwater habitats where pathogens and parasites, particularly vector-borne blood parasites, are generally more abundant. Thus, it has been hypothesized that the former group may reduce their investment in immunity, but experimental data supporting this hypothesis are lacking. Moreover, whether this contrasting habitat...

Playa-Montmany, et al.: The thermoregulatory role of relative bill and leg surface areas in a Mediterranean population of Great tit

Núria Playà-Montmany, Erick González-Medina, Julián Cabello-Vergel, Manuel Parejo, José M. Abad-Gómez, Juan M. Sánchez-Guzmán, Auxiliadora Villegas & José A. Masero
There is growing evidence on the role of legs and bill as ‘thermal windows’ in birds coping with heat stress. However, there is a lack of empirical work examining the relationship between the relative bill and/or leg surface areas and key thermoregulatory traits such as the limits of the thermoneutral zone (TNZ) or the cooling efficiency at high temperatures. Here, we explored this relationship in a Mediterranean population of Great tit (Parus major) facing increasing...

Presencia de espacios satíricos e infoentrentenimiento en radios universitarias de España

Daniel Martín-Pena & José Valhondo Crego

Data from: Evolutionary significance of the invasion of introduced populations into the native range of Meconopsis cambrica

Francisco J Valtueña, Christopher D Preston & Joachim W Kadereit
The long history of the deliberate or accidental, human-mediated dispersal of flowering plants has led to the introduction of foreign genotypes of many species into areas of Europe hitherto occupied by potentially distinct native populations. Studies of the genetic and evolutionary consequences of such changes are handicapped by the difficulty of identifying the surviving native populations of many species in the absence of clear morphological differences. We investigated the relationship between putative native and introduced...

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