53 Works

Data from: Selection, drift and introgression shape MHC polymorphism in lizards

Konstantinos Sagonas, Anna Runemark, Aglaia Antoniou, Petros Lymberakis, Panayiotis Pafilis, Efstratios D. Valakos, Nikos Poulakakis & Bengt Hansson
The Major Histocompatibility Complex (MHC) has long served as a model for the evolution of adaptive genetic diversity in wild populations. Pathogen-mediated selection is thought to be a main driver of MHC diversity, but it remains elusive to what degree selection shapes MHC diversity in complex biogeographical scenarios where other evolutionary processes (e.g. genetic drift and introgression) may also be acting. Here, we focus on two closely related green lizard species, Lacerta trilineata and L....

Data from: Differences in spatial resolution and contrast sensitivity of flight control in the honeybees Apis cerana and Apis mellifera

Aravin Chakravarthi, Santosh Rajus, Almut Kelber, Marie Dacke & Emily Baird
Visually-guided behaviour is constrained by the capacity of the visual system to resolve detail. This is, in turn, limited by the spatial resolution and contrast sensitivity of the underlying visual system. Because these properties are interdependent and vary non-uniformly, it is only possible to fully understand the limits of a specific visually guided behaviour when they are investigated in combination. To understand the visual limits of flight control in bees, which rely heavily on vision...

Data from: Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

Daniel S. Karp, Rebecca Chaplin-Kramer, Timothy D. Meehan, Emily A. Martin, Fabrice DeClerck, Heather Grab, Claudio Gratton, Lauren Hunt, Ashley E. Larsen, Alejandra Martínez-Salinas, Megan E. O’Rourke, Adrien Rusch, Katja Poveda, Mattias Jonsson, Jay A. Rosenheim, Nancy A. Schellhorn, Teja Tscharntke, Stephen D. Wratten, Wei Zhang, Aaron L. Iverson, Lynn S. Adler, Matthias Albrecht, Audrey Alignier, Gina M. Angelella, Muhammad Zubair Anjum … & Yi Zou
The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are...

Data from: Field validation of radar systems for monitoring bird migration

Cecilia Nilsson, Adriaan M. Dokter, Baptiste Schmid, Martina Scacco, Liesbeth Verlinden, Johan Bäckman, Günther Haase, Giacomo Dell'Omo, Jason W. Chapman, Hidde Leijnse & Felix Liechti
1. Advances in information technology are increasing the use of radar as a tool to investigate and monitor bird migration movements. We set up a field campaign to compare and validate outputs from different radar systems. 2. Here we compare the pattern of nocturnal bird migration movements recorded by four different radar systems at a site in southern Sweden. Within the range of the weather radar (WR) Ängelholm, we operated a “BirdScan” (BS) dedicated bird...

Data from: Ecology and macroevolution – evolutionary niche monopolisation as a mechanisms of niche conservatism

Jörgen Ripa
Explaining macroevolution from microevolution is a key issue in contemporary evolutionary theory. A recurrent macroevolutionary pattern is that some niche‐related traits consistently evolve slower than others, so called niche conservatism. Despite a growing amount of data, the underlying evolutionary processes are not fully understood. I here analyse adaptive radiations in an individual‐based eco‐evolutionary model. I find a coevolutionary mechanism – evolutionary niche monopolisation – as a possibly important generator of niche conservatism. A single lineage...

Data from: Annual flower strips support pollinators and potentially enhance red clover seed yield

, Ola Lundin & Riccardo Bommarco
1. Ecological intensification provides opportunity to increase agricultural productivity while minimizing negative environmental impacts, by supporting ecosystem services such as crop pollination and biological pest control. For this we need to develop targeted management solutions that provide critical resources to service-providing organisms at the right time and place. 2. We tested whether annual strips of early flowering phacelia Phacelia tanacetifolia support pollinators and natural enemies of seed weevils Protapion spp., by attracting and offering nectar...

Data from: Highly mobile insectivorous swifts perform multiple intra-tropical migrations to exploit an asynchronous African phenology

Gabriel Norevik, Giovanni Boano, Anders Hedenström, Roberto Lardelli, Felix Liechti & Susanne Åkesson
With timely allocated movement phases, mobile organisms can match their space-use with the seasonality of the environment and thereby optimise their resource utilisation over time. Long-distance avian migrants are known to move with the seasonal dynamics on an annual basis, but how individuals respond to seasonality within their tropical non-breeding range has been less studied. Here we analyse the movement pattern of a highly mobile aerial insectivorous bird, the pallid swift Apus pallidus, and its...

Data from: Flight in ground effect dramatically reduces aerodynamic costs in bats

L. Christoffer Johansson, Lasse Jakobsen & Anders Hedenström
Most flying animals, from insects to seabirds, perform flights close to ground or water when taking off or landing, drinking, and feeding or when traveling near water surfaces. When flying close to a surface within approximately one wingspan, the surface acts as an aerodynamic mirror, interrupting the downwash, resulting in increased pressure underneath the wing and suppression of wingtip vortex development. This aerodynamic interaction lowers the energy added to the air by the animal, reducing...

Data from: Towards resolving and redefining Amphipyrinae (Lepidoptera, Noctuoidea, Noctuidae): a massively polyphyletic taxon

Kevin L. Keegan, J. Donald Lafontaine, Niklas Wahlberg & David L. Wagner
Amphipyrinae have long been a catchall taxon for Noctuidae, with most members lacking discernible morphological synapomorphies that would allow their assignment to one of the many readily diagnosable noctuid subfamilies. Here data from seven gene regions (>5,500 base pairs) for more than 120 noctuid genera are used to infer a phylogeny for Amphipyrinae and related subfamilies. Sequence data for 57 amphipyrine genera—most represented by the type species of the genus—are examined. Presented here are: the...

Data from: High levels of genetic diversity in marginal populations of the marsh orchid Dactylorhiza majalis ssp. majalis

Mikael Hedrén & Sofie N. Olofsson
Because of harsh conditions, suboptimal habitat quality and poor connectivity to other populations, plant populations at the margin of a distribution are expected to be less genetically diverse, but to be more divergent from each other than populations in the centre of a distribution. In northern Europe, northern marginal populations may also be younger than populations further to the south, and may have had less time to accumulate genetic diversity by mutation and gene flow....

Data from: Sexual conflict and ecology: species composition and male density interact to reduce male mating harassment and increase female survival

Miguel Gomez, Hanna Mercedes Bensch, Erik I. Svensson & Miguel A. Gomez-Llano
Sexual conflict is a pervasive evolutionary force that can reduce female fitness. Experimental evolution studies in the laboratory might overestimate the importance of sexual conflict since the ecological conditions in such settings typically include only a single species. Here, we experimentally manipulated conspecific male density (high or low) and species composition (sympatric or allopatric) to investigate how ecological conditions affect female survival in a sexually dimorphic insect, the banded demoiselle (Calopteryx splendens). Female survival was...

Data from: Are assortative mating and genital divergence driven by reinforcement?

Johan Hollander, Mauricio Montaño-Rendón, Giuseppe Bianco, Xi Yang, Anja M. Westram, Ludovic Duvaux, David G. Reid & Roger K. Butlin
The evolution of assortative mating is a key part of the speciation process. Stronger assortment, or greater divergence in mating traits, between species pairs with overlapping ranges is commonly observed, but possible causes of this pattern of reproductive character displacement are difficult to distinguish. We use a multidisciplinary approach to provide a rare example where it is possible to distinguish among hypotheses concerning the evolution of reproductive character displacement. We build on an earlier comparative...

Data from: When beggars are choosers-How nesting of a solitary bee is affected by temporal dynamics of pollen plants in the landscape

Anna S. Persson, Florence Mazier, Henrik G. Smith & Anna Persson
Wild bees are declining in intensively farmed regions worldwide, threatening pollination services to flowering crops and wild plants. To halt bee declines, it is essential that conservation actions are based on a mechanistic understanding of how bee species utilize landscapes. We aimed at teasing apart how foraging resources in the landscape through the nesting season affected nesting and reproduction of a solitary bee in a farmland region. We investigated how availability of floral resources and...

Data from: Preen oil chemical composition encodes individuality, seasonal variation and kinship in black kites Milvus migrans

Simon Potier, Malicia M. Besnard, David Schikorski, Bruno Buatois, Olivier Duriez, Marianne Gabirot, Sarah Leclaire & Francesco Bonadonna
Evidence that bird odour can encode social information that can be used in chemical communication is growing, but is restricted to a few taxonomic groups. Among birds, diurnal raptors (i.e. birds from the Accipitriformes and Falconiformes order) have always been considered as mainly relying on their visual abilities. Although they seem to have a functional sense of smell, whether their odour can convey social information has yet to be determined. Combining gas-chromatography-mass-spectrometry (GCMS) and microsatellite...

Data from: Evidence for sexual conflict over MHC diversity in a wild songbird

Jacob Roved, Bengt Hansson, Maja Tarka, Dennis Hasselquist & Helena Westerdahl
Sex differences in parasite load and immune responses are found across a wide range of animals, with females generally having lower parasite loads and stronger immune responses than males. Intrigued by these general patterns, we investigated if there was any sign of sex-specific selection on an essential component of adaptive immunity that is known to affect fitness, the major histocompatibility complex class I (MHC-I) genes, in a 20-year study of great reed warblers. Our analyses...

Data from: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry

Firas Bou Daher, Yuanjie Chen, Behruz Bozorg, Jack Clough, Henrik Jönsson & Siobhan A. Braybrook
Fast directional growth is a necessity for the young seedling; after germination, it needs to quickly penetrate the soil to begin its autotrophic life. In most dicot plants, this rapid escape is due to the anisotropic elongation of the hypocotyl, the columnar organ between the root and the shoot meristems. Anisotropic growth is common in plant organs and is canonically attributed to cell wall anisotropy produced by oriented cellulose fibers. Recently, a mechanism based on...

Data from: Eco-evolutionary dynamics of sexual selection and sexual conflict

Erik I. Svensson
1.The research framework of eco‐evolutionary dynamics is increasing in popularity, as revealed by a steady stream of review articles and a recent and influential book, but primary empirical research is lagging behind. Moreover, the few empirical case studies demonstrating eco‐evolutionary dynamics might not be entirely representative. 2.Much current research on eco‐evolutionary dynamics is focused on how ecological interactions lead to natural selection on phenotypic traits (“eco‐evo”), and in turn how the evolutionary change in such...

Data from: Immune challenge induces terminal investment at an early breeding stage in female zebra finches

Sandra Sköld-Chiriac, Jan-Åke Nilsson & Dennis Hasselquist
The ‘terminal investment’ hypothesis proposes that individuals with low future survival prospects will gain from increasing investment in the current reproductive event even though it will reduce the chances of future reproduction even further. Such investments have previously been found to occur mainly during the late stages of the breeding event, i.e., encompassing a short period of elevated parental care close to offspring independence. Our aim was to study if a simulated mild bacterial infection...

Data from: Evolution and systematics of polyploid Nigritella (Orchidaceae)

Mikael Hedrén, Richard Lorenz, Herwig Teppner, Branko Dolinar, Cesario Giotta, Norbert Griebl, Sven Hansson, Ulrich Heidtke, Erich Klein, Giorgio Perazza, David Ståhlberg & Bostjan Surina
Members of the orchid genus Nigritella are widespread in European mountains, but species circumscriptions and evolutionary patterns in the genus are subjects to conflicting opinions. We analyzed a representative material of Nigritella for differentiation at nuclear and plastid marker loci. In agreement with predictions from embryological studies, diploid members of Nigritella are sexual and mostly out-crossing, whereas triploid, tetraploid and pentaploid members are apomicts. The diploid taxa were poorly differentiated in the investigated molecular markers,...

Data from: Shock and stabilisation following long-term drought in tropical forest from 15 years of litterfall dynamics

Lucy Rowland, Antonio C. L. Da Costa, Alex A. R. Oliveira, Samuel S. Almeida, Leandro V. Ferreira, Yadvinder Malhi, Dan B. Metcalfe, Maurizio Mencuccini, John Grace & Patrick Meir
Litterfall dynamics in tropical forests are a good indicator of overall tropical forest function, indicative of carbon invested in both photosynthesising tissues and reproductive organs such as flowers and fruits. These dynamics are sensitive to changes in climate, such as drought, but little is known about the long-term responses of tropical forest litterfall dynamics to extended drought stress. We present a 15-year dataset of litterfall (leaf, flower and fruit, and twigs) from the world's only...

Data from: Barometer logging reveals new dimensions of individual songbird migration

Sissel Sjöberg, Lykke Pedersen, Gintaras Malmiga, Thomas Alerstam, Bengt Hansson, Dennis Hasselquist, Kasper Thorup, Anders P. Tøttrup, Arne Andersson & Johan Bäckman
Recent advances in tracking technology are based on the use of miniature sensors for recording new aspects of individual migratory behaviour. In this study, we have used activity data loggers with barometric and temperature sensors to record the flight altitudes as well as ground elevations during stationary periods of migratory songbirds. We tracked one individual of red-backed shrike and one great reed warbler along their autumn migration from Europe to Africa. Both individuals performed their...

Sex differences in helping effort reveal the effect of future reproduction on cooperative behaviour in birds

Philip A. Downing, Ashleigh S. Griffin & Charlie K. Cornwallis
The evolution of helping behaviour in species that breed cooperatively in family groups is typically attributed to kin selection alone. However, in many species, helpers go on to inherit breeding positions in their natal groups, but the extent to which this contributes to selection for helping is unclear, as the future reproductive success of helpers is often unknown. To quantify the role of future reproduction in the evolution of helping, we compared the helping effort...

Data from: Effects of interspecific coexistence on laying date and clutch size in two closely related species of hole‐nesting birds

Anders Pape Møller, Javier Balbontin, André A. Dhondt, Vladimir Remeš, Frank Adriaensen, Clotilde Biard, Jordi Camprodon, Mariusz Cichoń, Blandine Doligez, Anna Dubiec, Marcel Eens, Tapio Eeva, Anne E. Goodenough, Andrew G. Gosler, Lars Gustafsson, Philipp Heeb, Shelley A. Hinsley, Staffan Jacob, Rimvydas Juškaitis, Toni Laaksonen, Bernard Leclercq, Bruno Massa, Tomasz D. Mazgajski, Rudi G. Nager, Jan-Åke Nilsson … & Ruedi G. Nager
Coexistence between great tits Parus major and blue tits Cyanistes caeruleus, but also other hole‐nesting taxa, constitutes a classic example of species co‐occurrence resulting in potential interference and exploitation competition for food and for breeding and roosting sites. However, the spatial and temporal variations in coexistence and its consequences for competition remain poorly understood. We used an extensive database on reproduction in nest boxes by great and blue tits based on 87 study plots across...

Data from: Genetic structure in parasitic Rhinanthus angustifolius is determined by geographical distance rather than habitat – implications for taxonomy and conservation

Anneli Jonstrup, Stefan Andersson & Mikael Hedrén
Analyses of intraspecific genetic structure can promote the conservation of genetic diversity of rare or declining plant species by enabling identification of proper management units. Here we investigate the genetic structure of the annual hemiparasitic herb Rhinanthus angustifolius to evaluate the genetic distinctness of two currently described subspecies and three habitat-related groups of populations inferred from recent common-garden data. Data from 11 nuclear microsatellite loci, obtained from 17 southern Swedish populations of R. angustifolius, were...

Data from: Testing the heat dissipation limit theory in a breeding passerine

Jan-Åke Nilsson & Andreas Nord
The maximum work rate of animals has recently been suggested to be determined by the rate at which excess metabolic heat generated during work can be dissipated (heat dissipation limitation theory; HDL). As a first step towards testing this theory in wild animals, we experimentally manipulated brood size in breeding marsh tits (Poecile palustris) to change their work rate. Parents feeding nestlings generally operated at above-normal body temperatures. Body temperature in both males and females...

Registration Year

  • 2018
    53

Resource Types

  • Dataset
    53

Affiliations

  • Lund University
    53
  • Swedish University of Agricultural Sciences
    3
  • University of Exeter
    3
  • Nederlands Instituut voor Ecologie
    2
  • University of Gothenburg
    2
  • French National Centre for Scientific Research
    2
  • Skåne University Hospital
    2
  • University of Copenhagen
    2
  • Swiss Ornithological Institute
    2
  • University of Oxford
    2