518 Works

Intraspecific genetic variation and spectral data of a Fagus sylvatica population in a temperate forest

Ewa Agata Czyz
This dataset contain genetic variation and multi-annual conopy level spectral responses of 77 Fagus sylvatica individuals from Laegern temperate forest (47°28'N, 8°21'E) population.

Data from: Urbanization and the temporal patterns of social networks and group foraging behaviours

Teri B. Jones, Julian C. Evans & Julie Morand-Ferron
Urbanization causes dramatic and rapid changes to natural environments, which can lead the animals inhabiting these habitats to adjust their behavioral responses. For social animals, urbanized environments may alter group social dynamics through modification of the external environment (e.g., resource distribution). This might lead to changes in how individuals associate or engage in group behaviors, which could alter the stability and characteristics of social groups. However, the potential impacts of urban habitat use, and of...

Data from: Fossils matter: improved estimates of divergence times in Pinus reveal older diversification

Bianca Saladin, Andrew B. Leslie, Rafael O. Wueest, Glenn Litsios, Elena Conti, Nicolas Salamin & Niklaus E. Zimmermann
Background: The taxonomy of pines (genus Pinus) is widely accepted and a robust gene tree based on entire plastome sequences exists. However, there is a large discrepancy in estimated divergence times of major pine clades among existing studies, mainly due to differences in fossil placement and dating methods used. We currently lack a dated molecular phylogeny that makes use of the rich pine fossil record, and this study is the first to estimate the divergence...

Data from: The origin of the legumes is a complex paleopolyploid phylogenomic tangle closely associated with the Cretaceous-Paleogene (K-Pg) mass extinction event

Erik Koenen, Dario Ojeda, Freek Bakker, Jan Wieringa, Catherine Kidner, Olivier Hardy, Toby Pennington, Patrick Herendeen, Anne Bruneau & Colin Hughes
The consequences of the Cretaceous-Paleogene (K-Pg) boundary (KPB) mass extinction for the evolution of plant diversity remain poorly understood, even though evolutionary turnover of plant lineages at the KPB is central to understanding assembly of the Cenozoic biota. The apparent concentration of whole genome duplication (WGD) events around the KPB may have played a role in survival and subsequent diversification of plant lineages. To gain new insights into the origins of Cenozoic biodiversity, we examine...

Evolution in interacting species alters predator life history traits, behavior and morphology in experimental microbial communities

Johannes Cairns, Felix Moerman, Emanuel Fronhofer, Florian Altermatt & Teppo Hiltunen
Predator-prey interactions are key for the dynamics of many ecosystems. An increasing body of evidence suggests that rapid evolution and co-evolution can alter these interactions, with important ecological implications, by acting on traits determining fitness, including reproduction, anti-predatory defense and foraging efficiency. However, most studies to date have focused only on evolution in the prey species, and the predator traits in (co-)evolving systems remain poorly understood. Here we investigated changes in predator traits after ~600...

The performance of permutations and exponential random graph models when analysing animal networks (R code and data)

Matthew Silk, Julian Evans & David Fisher
Social network analysis is a suite of approaches for exploring relational data. Two approaches commonly used to analyse animal social network data are permutation-based tests of significance and exponential random graph models. However, the performance of these approaches when analysing different types of network data has not been simultaneously evaluated. Here we test both approaches to determine their performance when analysing a range of biologically realistic simulated animal social networks. We examined the false positive...

Data from: Stallion semen quality depends on MHC matching to teaser mare

Elise Jeannerat, Eliane Marti, Catherine Berney, Fredi Janett, Heinrich Bollwein, Harald Sieme, Dominik Burger & Claus Wedekind
The major histocompatibility complex (MHC) has repeatedly been found to influence mate choice of vertebrates, with MHC-dissimilar mates typically being preferred over MHC-similar mates. We used horses (Equus caballus) to test whether MHC matching also affects male investment into ejaculates after short exposure to a female. Semen characteristics varied much among stallions. Controlling for this variance with a full-factorial within-subject experimental design, we found that a short exposure to an MHC-dissimilar mare enhanced male plasma...

Data from: Differential effects of maternal yolk androgens on male and female offspring: a role for sex-specific selection?

Barbara Tschirren
Maternal hormones are important mediators of prenatal maternal effects in animals. Although their effects on offspring phenotype are often sex-specific, the reason why sometimes sons are more sensitive to prenatal hormone exposure and sometimes daughters is not well understood. Here I combine an experimental manipulation of yolk testosterone concentration in the egg and quantification of selection acting on yolk androgen-sensitive traits in a natural population of great tits (Parus major) with a literature review to...

Data from: Demographic histories and genetic diversities of Fennoscandian marine and landlocked ringed seal subspecies

Tommi Nyman, Mia Valtonen, Jouni Aspi, Minna Ruokonen, Mervi Kunnasranta & Jukka U. Palo
Island populations are on average smaller, genetically less diverse, and at a higher risk to go extinct than mainland populations. Low genetic diversity may elevate extinction probability, but the genetic component of the risk can be affected by the mode of diversity loss, which, in turn, is connected to the demographic history of the population. Here, we examined the history of genetic erosion in three Fennoscandian ringed seal subspecies, of which one inhabits the Baltic...

Data from: Palaeobiogeographical structuration of Smithian (Early Triassic) ammonoid faunas within the western USA basin and its controlling parameters

Romain Jattiot, Arnaud Brayard, Hugo Bucher, Emmanuelle Vennin, Gwénaël Caravaca, James F. Jenks, Kevin G. Bylund & Gilles Escarguel
We present the first quantitative palaeobiogeographical analysis in terms of distribution and abundance of Early Triassic ammonoids from the western USA basin during the Smithian, c. 1 myr after the Permian–Triassic boundary mass extinction. The faunal dataset consists of a taxonomically homogenized compilation of spatial and temporal occurrences and abundances from 27 sections distributed within the western USA basin. Two complementary multivariate techniques were applied to identify the main biogeographical structuring recorded in the analysed...

Data from: Linking diversity, synchrony and stability in soil microbial communities

Cameron Wagg, Jan-Hendrik Dudenhöffer, Franco Widmer, Marcel G.A. Van Der Heijden & Marcel G. A. Van Der Heijden
1. It is becoming well established that plant diversity is instrumental in stabilizing the temporal functioning of ecosystems through population dynamics and the so-called insurance or portfolio effect. However, it is unclear whether diversity-stability relationships and the role of population dynamics in soil microbial communities parallel those in plant communities. 2. Our study took place in a long-term land management experiment with and without perturbation to the soil ecosystem by tilling. We assessed the impacts...

Data from: Revised time scales of RNA virus evolution based on spatial information

Moritz Saxenhofer, Vanessa Weber De Melo, Rainer G. Ulrich & Gerald Heckel
The time scales of pathogen evolution are of major concern in the context of public and veterinary health, epidemiology and evolutionary biology. Dating the emergence of a pathogen often relies on estimates of evolutionary rates derived from nucleotide sequence data. For many viruses, this has yielded estimates of evolutionary origins only a few hundred years in the past. Here we demonstrate through the incorporation of geographic information from virus sampling that evolutionary age estimates of...

Data from: Parental effects alter the adaptive value of an adult behavioural trait

Rebecca M. Kilner, Giuseppe Boncoraglio, Jono M. Henshaw, Benjamin J. M. Jarrett, Ornela De Gasperin, Hanna Kokko, Benjamin JM Jarrett, Alfredo Attisano & Jonathan M Henshaw
The parents' phenotype, or the environment they create for their young, can have long-lasting effects on their offspring, with profound evolutionary consequences. Yet virtually no work has considered how such parental effects might change the adaptive value of behavioural traits expressed by offspring upon reaching adulthood. To address this problem, we combined experiments on burying beetles (Nicrophorus vespilloides) with theoretical modelling, and focussed on one adult behavioural trait in particular: the supply of parental care....

Data from: Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America

Richard Troy McMullin, James C. Lendemer, Heather E. Braid & Steven G. Newmaster
Alectoria is a genus of fruticose lichen characterised by the presence of usnic acid and conspicuous raised pseudocyphellae. This genus is particularly diverse and abundant in montane, boreal, and Arctic regions of North America. Because intermediate forms have been reported for several species of Alectoria on the continent, it has been suggested that these species were initially delimited based on the extremes of morphological gradients. Here, we use the results of molecular phylogenetic analyses of...

Data from: A trait-based trade-off between growth and mortality: evidence from 15 tropical tree species using size-specific RGRs

Christopher D. Philipson, Daisy H. Dent, Michael J. O’Brien, Juliette Chamagne, Dzaeman Dzulkifli, Reuben Nilus, Sam Philips, Glen Reynolds, Philippe Saner, Andy Hector & Michael J. O'Brien
A life-history trade-off between low mortality in the dark and rapid growth in the light is one of the most widely accepted mechanisms underlying plant ecological strategies in tropical forests. Differences in plant functional traits are thought to underlie these distinct ecological strategies; however, very few studies have shown relationships between functional traits and demographic rates within a functional group. We present 8 years of growth and mortality data from saplings of 15 species of...

Data from: Interaction effects of cell diffusion, cell density and public goods properties on the evolution of cooperation in digital microbes

Akos Dobay, Homayoun C. Bagheri, Antonio Messina, Rolf Kümmerli & Daniel J. Rankin
Microbial cooperation typically consists in the sharing of secreted metabolites (referred to as public goods) within the community. Although public goods generally promote population growth, they are also vulnerable to exploitation by cheating mutants, which no longer contribute, but still benefit from the public goods produced by others. Although previous studies have identified a number of key factors that prevent the spreading of cheaters, little is known about how these factors interact and jointly shape...

Data from: Study of morphological variation of northern Neotropical Ariidae reveals conservatism despite macrohabitat transitions

Madlen Stange, Gabriel Aguirre-Fernández, Walter Salzburger & Marcelo R. Sánchez-Villagra
Background: Morphological convergence triggered by trophic adaptations is a common pattern in adaptive radiations. The study of shape variation in an evolutionary context is usually restricted to well-studied fish models. We take advantage of the recently revised systematics of New World Ariidae and investigate skull shape evolution in six genera of northern Neotropical Ariidae. They constitute a lineage that diversified in the marine habitat but repeatedly adapted to freshwater habitats. 3D geometric morphometrics was applied...

Data from: Replicated latitudinal clines in reproductive traits of European and North American yellow dung flies

Stephanie S. Bauerfeind, Martin A. Schäfer, David Berger, Wolf U. Blanckenhorn & Charles W. Fox
Geographic variation in phenotypic traits is commonly correlated with spatial variation in the environment, e.g., seasonality and mean temperature, providing evidence that natural selection generates such patterns. In particular, both body size and egg size of ectothermic animals are commonly larger in northern climates, and temperature induces plastic responses in both traits. Size-independent egg quality can also vary with latitude, though this is rarely investigated. For the widespread yellow dung fly (Scathophaga stercoraria; Diptera: Scathophagidae),...

Data from: The role of phenotypic plasticity on population differentiation

Max Schmid & Frédéric Guillaume
Several evolutionary processes shape the genetic and phenotypic differentiation of populations. Among them, the joint effects of gene flow, selection and phenotypic plasticity are poorly known, especially when trying to understand how maladaptive plasticity affects population divergence. We extended a quantitative genetic model of Hendry et al. (2001) to describe these joint effects on phenotypic and additive genetic divergence between two populations, and their phenotypic and genetic differentiation (PST and QST). With individual-based simulations, we...

Data from: Net assimilation rate determines the growth rates of 14 species of subtropical forest trees

Xuefei Li, Bernhard Schmid, Fei Wang & C. E. Timothy Paine
Growth rates are of fundamental importance for plants, as individual size affects myriad ecological processes. We determined the factors that generate variation in RGR among 14 species of trees and shrubs that are abundant in subtropical Chinese forests. We grew seedlings for two years at four light levels in a shade-house experiment. We monitored the growth of every juvenile plant every two weeks. After one and two years, we destructively harvested individuals and measured their...

Data from: Spatially heterogeneous selection in nature favors phenotypic plasticity in anuran larvae

Josh Van Buskirk
Theory holds that adaptive phenotypic plasticity evolves under spatial or temporal variation in natural selection. I tested this prediction in a classic system of predator-induced plasticity: frog tadpoles (Rana temporaria) reacting to predaceous aquatic insects. An outdoor mesocosm experiment manipulating exposure to Aeshna dragonfly larvae revealed plasticity in most characters: growth, development, behavior, and external morphology. I measured selection by placing 1927 tadpoles into enclosures within natural ponds; photographs permitted identification of the survivors 6–9...

Data from: High temperatures reveal cryptic genetic variation in a polymorphic female sperm storage organ

David Berger, Stephanie Sandra Bauerfeind, Wolf Ulrich Blanckenhorn & Martin Andreas Schäefer
Variation in female reproductive morphology may play a decisive role in reproductive isolation by affecting the relative fertilization success of alternative male phenotypes. Yet, knowledge of how environmental variation may influence the development of the female reproductive tract and thus alter the arena of post-copulatory sexual selection is limited. Yellow dung fly females possess either three or four sperm storage compartments, a polymorphism with documented influence on sperm precedence. We performed a quantitative genetics study...

Data from: Moving in the Anthropocene: global reductions in terrestrial mammalian movements

Marlee A. Tucker, Katrin Böhning-Gaese, William F. Fagan, John M. Fryxell, Bram Van Moorter, Susan C. Alberts, Abdullahi H. Ali, Andrew M. Allen, Nina Attias, Tal Avgar, Hattie Bartlam-Brooks, Buuveibaatar Bayarbaatar, Jerrold L. Belant, Alessandra Bertassoni, Dean Beyer, Laura Bidner, Floris M. Van Beest, Stephen Blake, Niels Blaum, Chloe Bracis, Danielle Brown, P. J. Nico De Bruyn, Francesca Cagnacci, Justin M. Calabrese, Constança Camilo-Alves … & Thomas Mueller
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral...

Data from: Heterozygosity-fitness correlation at the major histocompatibility complex despite low variation in Alpine ibex (Capra ibex)

Alice Brambilla, Lukas Keller, Bruno Bassano & Christine Grossen
Crucial for the long-term survival of wild populations is their ability to fight diseases. Disease outbreaks can lead to severe population size reductions, which makes endangered and reintroduced species especially vulnerable. In vertebrates, the major histocompatibility complex (MHC) plays an important role in determining the immune response. Species which went through severe bottlenecks, often show very low levels of genetic diversity at the MHC. Due to the known link between the MHC and immune response,...

Data from: Climatologies at high resolution for the earth's land surface areas

Dirk N. Karger, Olaf Conrad, Jürgen Böhner, Tobias Kawohl, Holger Kreft, Rodrigo W. Soria-Auza, Niklaus E. Zimmermann, H. Peter Linder & Michael Kessler
High-resolution information on climatic conditions is essential to many applications in environmental and ecological sciences. Here we present the CHELSA (Climatologies at high resolution for the earth’s land surface areas) data of downscaled model output temperature and precipitation estimates of the ERA-Interim climatic reanalysis to a high resolution of 30 arc sec. The temperature algorithm is based on statistical downscaling of atmospheric temperatures. The precipitation algorithm incorporates orographic predictors including wind fields, valley exposition, and...

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