41 Works

Journalistic practices contesting the concept of internal pluralism: Mapping strategies for internal diversity in and through the news

Enrique Núñez-Mussa, Kari Karppinen & Hanne Vandenberghe

Lichen speciation is sparked by a substrate requirement shift and reproduction mode differentiation

Annina Kantelinen, Christian Printzen, Péter Poczai & Leena Myllys
We show that obligate lignicoles in lichenized Micarea are predominately asexual whereas most facultative lignicoles reproduce sexually.AQ1 Our phylogenetic analyses (ITS, mtSSU, Mcm7) together with ancestral state reconstruction show that the shift in reproduction mode has evolved independently several times within the group and that facultative and obligate lignicoles are sister species. The analyses support the assumption that the ancestor of these species was a facultative lignicole. We hypothezise that a shift in substrate requirement...

Volcanic structures and magmatic evolution of the Vesteris Seamount, Greenland Basin

Katharina Anna Unger Moreno, Janis Thal , Wolfgang Bach , Christoph Beier & Karsten Matthias Haase
The solitary intraplate volcano Vesteris Seamount is located in the Central Greenland Basin and rises around 3000 m above the seafloor with a total eruptive volume of ~500 km3. Newly acquired high-resolution bathymetry allows through backscatter data and raster terrain analysis to distinguish several volcanic structures. The Vesteris Seamount is a northeast to southwest elongated stellar-shaped seamount with an elongated, narrow summit radially surrounded by irregular volcanic ridges, separated by volcanic debris fans. Whole rock...

Data from: Host developmental stage effects on parasite resistance and tolerance

Ines Klemme, Paul Vincent Debes, Craig Robert Primmer, Laura Härkönen, Jaakko Erkinaro, Pekka Hyvärinen & Anssi Karvonen
Hosts can defend themselves against parasites by either preventing or limiting infections (resistance), or limiting parasite-induced damage (tolerance). However, it remains underexplored how these defense types vary over host development with shifting patterns of resource allocation priorities. Here, we studied the role of developmental stage on resistance and tolerance in Atlantic salmon (Salmo salar). This anadromous fish has distinct life stages related to living in fresh and sea water. We experimentally exposed one-year old salmon,...

Whole-genome analysis of multiple wood ant population pairs supports similar speciation histories, but different degrees of gene flow, across their European ranges

Beatriz Portinha, Amaury Avril, Christian Bernasconi, Heikki Heläntera, Josie Monaghan, Bernhard Seifert, Vítor C. Sousa, Jonna Kulmuni & Pierre Nouhaud
The application of demographic history modelling and inference to the study of divergence between species has become a cornerstone of speciation genomics. Speciation histories are usually reconstructed by analysing single populations from each species, assuming that the inferred population history represents the actual speciation history. However, this assumption may not be met when species diverge with gene flow, e.g., when secondary contact may be confined to specific geographic regions. Here, we tested whether divergence histories...

Social information use about novel aposematic prey depends on the intensity of the observed cue

Clelia Mulá, Rose Thorogood & Liisa Hämäläinen
Animals gather social information by observing the behavior of others, but how the intensity of observed cues influences decision-making is rarely investigated. This is crucial for understanding how social information influences ecological and evolutionary dynamics. For example, observing a predator’s distaste of unpalatable prey can reduce predation by naïve birds, and help explain the evolution and maintenance of aposematic warning signals. However, previous studies have only used demonstrators that responded vigorously, showing intense beak-wiping after...

Strong selective environments determine evolutionary outcome in time-dependent fitness seascapes

Johannes Cairns, Florian Borse, Tommi Mononen, Teppo Hiltunen & Ville Mustonen
The impact of fitness landscape features on evolutionary outcomes has attracted considerable interest in recent decades. However, evolution often occurs under time-dependent selection in so-called fitness seascapes where the landscape is under flux. Fitness seascapes are an inherent feature of natural environments, where the landscape changes owing both to the intrinsic fitness consequences of previous adaptations and extrinsic changes in selected traits caused by new environments. The complexity of such seascapes may curb the predictability...

Data from: High spatiotemporal variability of methane concentrations challenges estimates of emissions across vegetated coastal ecosystems

Florian Roth, Xiaol Sun, Marc Geibel, John Prytcherch, Volker Brüchert, Stefano Bonaglia, Elias Broman, Francisco Nascimento, Christoph Humborg & Alf Norkko
Coastal methane (CH4) emissions dominate the global ocean CH4 budget and can offset the “blue carbon” storage capacity of vegetated coastal ecosystems. However, current estimates lack systematic, high-resolution, and long-term data from these intrinsically heterogeneous environments, making coastal budgets sensitive to statistical assumptions and uncertainties. Using continuous CH4 concentrations, δ13C-CH4 values, and CH4 sea-air fluxes across four seasons in three globally pervasive coastal habitats, we show that the CH4 distribution is spatially patchy over meter-scales...

Patch quality and genotype-by-environment interactions shape dispersal and post-settlement survival in a butterfly metapopulation

Michelle DiLeo, Etsuko Nonaka, Arild Husby & Marjo Saastamoinen
Active dispersal is driven by extrinsic and intrinsic factors at the three stages of departure, transfer, and settlement. Most empirical studies capture only one stage of this complex process, and knowledge of how much can be generalized from one stage to another remains unknown. Here we use genetic assignment tests to reconstruct dispersal across five years and 232 patches of a butterfly metapopulation. We link individual dispersal events to weather, landscape structure, size and quality...

Genetic epidemiology of blood type, disease and trait variants, and genome-wide genetic diversity in over 11,000 domestic cats

Heidi Anderson, Stephen Davison, Katherine M. Lytle, Leena Honkanen, Jamie Freyer, Julia Mathlin, Kaisa Kyöstilä, Laura Inman, Annette Louviere, Rebecca Chodroff Foran, Oliver P. Foran, Hannes Lohi & Jonas Donner
In the largest DNA-based study of domestic cat to date, 11,036 individuals (10,419 pedigreed cats from 91 breeds and breed types and 617 non-pedigreed cats) were genotyped via commercial panel testing, elucidating the distribution and frequency of known genetic variants associated with blood type, disease and physical traits across cat breeds. Blood group determining variants, which are relevant clinically and in cat breeding, were genotyped to assess the across breed distribution of blood types A,...

Environment and mate attractiveness in a wild insect

Tom Tregenza, Petri Niemelä, Rolando Rodríguez-Muñoz & Paul Hopwood
The role of female choice in sexual selection is well established, including the recognition that females choose their mates based on multiple cues. These cues may include intrinsic aspects of a male’s phenotype as well as aspects of the environment associated with the male. The role of the spatial location of a potential mate has been well studied in territorial vertebrates. However, despite their role as laboratory models for studies of sexual selection, the potential...

Transformed crane data from: Balancing structural complexity with ecological insight in spatio-temporal species distribution models

Megan Laxton, Óscar Rodríguez De Rivera, Andrea Soriano-Redondo & Janine Illian
The potential for statistical complexity in species distribution models (SDMs) has greatly increased with advances in computational power. Structurally complex models provide the flexibility to analyse intricate ecological systems and realistically messy data, but can be difficult to interpret, reducing their practical impact. Founding model complexity in ecological theory can improve insight gained from SDMs. Here, we evaluate a marked point process approach, which uses multiple Gaussian random fields to represent population dynamics of the...

ISIMIP2a Simulation Data from the Regional Forests Sector

Mats Mahnken, Alessio Collalti, Daniela Dalmonech, Carlo Trotta, Volodymyr Trotsiuk, Andrey Lessa Derci Augustynczik, Rasoul Yousefpour, Martin Gutsch, David Cameron, Harald Bugmann, Nica Huber, Timothy Thrippleton, Friedrich Bohn, Daniel Nadal-Sala, Santiago Sabaté, Rüdiger Grote, Annikki Mäkelä, Francesco Minunno, Mikko Peltoniemi, Patrick Vallet, Marek Fabrika, Katarína Merganičová, Iliusi Vega del Valle, Jan Volkholz & Christopher Reyer
The Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) provides a framework for the collation of a set of consistent, multi-sector, multi-scale climate-impact simulations, based on scientifically and politically relevant historical and future scenarios. This framework serves as a basis for robust projections of climate impacts, as well as facilitating model evaluation and improvement, allowing for advanced estimates of the biophysical and socio-economic impacts of climate change at different levels of global warming. It also provides a...

Heterozygote advantage and pleiotropy contribute to intraspecific color trait variability

Chiara De Pasqual, Kaisa Suisto, Jimi Kirvesoja, Swanne Gordon, Tarmo Ketola & Johanna Mappes
The persistence of intrapopulation phenotypic variation typically requires some form of balancing selection since drift and directional selection eventually erode genetic variation. Heterozygote advantage remains a classic explanation for the maintenance of genetic variation in the face of selection. However, examples of heterozygote advantage, other than those associated with disease resistance are rather uncommon. Across most of its distribution, males of the aposematic moth Arctia plantaginis have two hindwing phenotypes determined by a heritable one...

A tradeoff between robustness to environmental fluctuations and speed of evolution

Max Schmid, Maria Paniw, Maarten Postuma, Arpat Ozgul & Frédéric Guillaume
The ability of a species to cope with both long-term and short-term environmental fluctuations might vary with the species' life history. While some life-history characteristics promote large and stable population sizes despite interannual environmental fluctuations, other life-history strategies might allow to evolve quickly in response to long-term gradual changes. In a theoretical study, we show that there is a tradeoff between both properties. Life-history characteristics that promote fast rates of evolution come at the expense...

The role of terrestrial productivity in regulating aquatic dissolved organic carbon concentrations in boreal catchments

Xudan Zhu, Liang Chen, Jukka Pumpanen, Anne Ojala, John Zobitz, Xuan Zhou, Hjalmar Laudon, Marjo Palviainen, Kimmo Neitola & Frank Berninger
The past decades have witnessed an increase in dissolved organic carbon (DOC) concentrations in the catchments of the Northern Hemisphere. Increases in terrestrial productivity may be a reason for the increases in DOC concentration. The aim of this study is to investigate the impacts of increased terrestrial productivity and changed hydrology following climate change on DOC concentrations. We tested and quantified the effects of gross primary production (GPP), ecosystem respiration (RE) and discharge on DOC...

Data from: Identifying ‘vital attributes’ for assessing disturbance-recovery potential of seafloor communities

Rebecca Gladstone-Gallagher, Judi Hewitt, Simon Thrush, Marco Brustolin, Anna Villnas, Sebastian Valanko & Alf Norkko
Soft-sediment macrofaunal community data used in "Identifying ‘vital attributes’ for assessing disturbance-recovery potential of seafloor communities" in Ecology and Evolution. Data is macrofauna community data from two soft-sediment disturbance recovery experiments conducted in the Tvärminne-Hanko Archipelago in the Baltic Sea, and Kawau Bay in New Zealand.

Nitrogen availability and plant functional composition modify biodiversity-multifunctionality relationships

Eric Allan, Noémie Pichon, Seraina Cappelli, Santiago Soliveres, Tosca Mannall, Thu Zar Nwe, Norbert Hölzel, Valentin Klaus, Till Kleinebecker & Hugo Vincent
The ability of an ecosystem to deliver multiple functions at high levels (multifunctionality) typically increases with biodiversity but there is substantial variation in the strength and direction of biodiversity effects, suggesting context-dependency. A better understanding of the drivers of this context dependency is essential to predict effects of global change on ecosystems. To determine how different factors modulate the effect of diversity on multifunctionality, we established a large grassland experiment with 216 communities, crossing a...

Delayed early life effects in the threespine stickleback

Ulrika Candolin
Early life conditions can have a decisive influence on viability later in life. Yet, the influence of embryo density within a nest or body cavity on subsequent viability has received little attention within an ecological setting. This is surprising given that embryos often compete for limited resources, such as nutrients and oxygen, and this could influence their viability later in life through carry-over and compensatory effects. We show that the density of fertilised eggs within...

The non-dereliction in evolution: Trophic specialisation drives convergence in the radiation of red devil spiders (Araneae: Dysderidae) in the Canary Islands

Adrià Bellvert, Silvia Adrián-Serrano, Nuria Macías-Hernández, Søren Toft, Antigoni Kaliontzopoulou & Miquel A. Arnedo
Natural selection plays a key role in deterministic evolution, as clearly illustrated by adaptive radiations. Unlike most spiders, Dysdera species display a high variability of cheliceral morphologies, which has been suggested to reflect different levels of specialisation to feed on isopods. In this study, we integrate geometric morphometrics and experimental trials with a fully resolved phylogeny of the highly diverse endemic species from the Canary Islands to (1) characterize cheliceral morphologies, (2) unravel their dietary...

Public service media: Exploring the influence of strong public service media on democracy

Barbara Thomass, Joaquim Fidalgo, John Grönvall, Achilleas Karadimitriou & Lars Nord

The transcription factor network of E. coli steers global responses to shifts in RNAP concentration

Bilena L.B. Almeida, Mohamed N.M. Bahrudeen, Vatsala Chauhan, Suchintak Dash, Vinodh Kandavalli, Antti Häkkinen, Jason Lloyd-Price, Cristina S.D. Palma, Ines S.C. Baptista, Abhishekh Gupta, Juha Kesseli, Eric Dufour, Olli-Pekka Smolander, Matti Nykter, Petri Auvinen, Howard T. Jacobs, Samuel M.D. Oliveira & Andre S. Ribeiro
The robustness and sensitivity of gene networks to environmental changes is critical for cell survival. How gene networks produce specific, chronologically ordered responses to genome-wide perturbations, while robustly maintaining homeostasis, remains an open question. We analysed if short- and mid-term genome-wide responses to shifts in RNA polymerase (RNAP) concentration are influenced by the known topology and logic of the transcription factor network (TFN) of Escherichia coli. We found that, at the gene cohort level, the...

Data from: Relaxed risk of predation drives parallel evolution of stickleback behaviour

Antoine Fraimout
The occurrence of similar phenotypes in multiple independent populations derived from common ancestral conditions (viz. parallel evolution) is a testimony of evolution by natural selection. Parallel evolution implies that populations share a common phenotypic response to a common selection pressure associated with habitat similarity. Examples of parallel evolution at genetic and phenotypic levels are fairly common, but the driving selective agents often remain elusive. Similarly, the role of phenotypic plasticity in facilitating early stages of...

The importance of considering the duration of extreme temperatures when investigating responses to climate change.

Teija Isotalo, Lilla Rotenbiller & Ulrika Candolin
The frequency and duration of heatwaves are increasing because of human activities. To cope with the changes, species with longer generation times may have to rely on plastic responses. The probability that their responses are adaptive is higher if the species have experienced temperature fluctuations also in their evolutionary past. However, experimental studies investigating responses to heatwaves often use exposure times that are significantly shorter than recent heatwaves. We show that this can lead to...

Population dynamics of Amazonian floodplain forest species support spatial variation on genetic diversity but not range expansions through time

Gregory Thom, Camila Ribas, Eduardo De Deus Schultz, Alexandre Aleixo & Cristina Miyaki
Aim: We tested if historical demographic changes of populations occurring on the floodplains of a major Amazon Basin tributary could be associated with range expansions from upper and middle sections of the river, following the establishment of widespread river-created environments during the Late Pleistocene and Holocene. Location: Solimões River, Western Amazon, South America. Taxon: Myrmoborus lugubris, Thamnophilus cryptoleucus and Myrmotherula assimilis. Methods: We explored spatial patterns of genetic diversity and connectivity among sampled localities using...

Registration Year

  • 2022
    41

Resource Types

  • Dataset
    37
  • Book Chapter
    3
  • Text
    1

Affiliations

  • University of Helsinki
    40
  • Natural Resources Institute Finland
    4
  • University of Jyväskylä
    4
  • University of Eastern Finland
    3
  • Swedish University of Agricultural Sciences
    3
  • University of Oulu
    3
  • University of Kent
    2
  • University of Lausanne
    2
  • National Institute of Amazonian Research
    2
  • University of Barcelona
    2