18 Works

Innate anti-predator behavior can promote infection in fish even in the absence of predators

Victor Mikheev, Anna Pasternak, Andrey Morozov & Jouni Taskinen
Natural enemies - predators and parasites - largely shape the dynamics of ecosystems. It is known that anti-predator and anti-parasite defense can be mutually conflicting, however consequences of this trade-off for the regulation of infection burden in animals are still poorly understood. We hypothesize that even in the absence of cues from predators, innate anti-predator behavior (“ghost of predation past”) interferes with defense against parasites and can enhance the infection risk. As a case study,...

Data from: Predators’ consumption of unpalatable prey does not vary as a function of bitter taste perception

Liisa Hämäläinen, Johanna Mappes, Rose Thorogood, Janne Valkonen, Kaijamari Karttunen, Tuuli Salmi & Hannah Rowland
Many prey species contain defensive chemicals that are described as tasting bitter. Bitter taste perception is therefore assumed to be important when predators are learning about prey defenses. However, it is not known how individuals differ in their response to bitter taste, and how this influences their foraging decisions. We conducted taste perception assays in which wild-caught great tits (Parus major) were given water with increasing concentrations of bitter-tasting chloroquine diphosphate until they showed an...

Appearance before performance? Nutritional constraints on life‐history traits, but not warning signal expression in aposematic moths

Carita Lindstedt, Kaisa Suisto & Johanna Mappes
1. Trade-offs have been shown to play an important role in the divergence of mating strategies and sexual ornamentation, but their importance in explaining warning signal diversity has received less attention. In aposematic organisms, allocation costs of producing the conspicuous warning signal pigmentation under nutritional stress could potentially trade-off with life-history traits and maintain variation in warning colouration. 2. We studied this with an aposematic herbivore Arctia plantaginis (Arctiidae), whose larvae and adults show extensive...

Data from: The strategic reference gene: an organismal theory of inclusive fitness

Lutz Fromhage & Michael D. Jennions
How to define and use the concept of inclusive fitness is a contentious topic in evolutionary theory. Inclusive fitness can be used to calculate selection on a focal gene, but it is also applied to whole organisms. Individuals are then predicted to appear designed as if to maximise their inclusive fitness, provided that certain conditions are met (formally when interactions between individuals are ‘additive’). Here we argue that applying the concept of inclusive fitness to...

Data from: Effects of undergrowth removal and edge proximity on ground beetles and vascular plants in urban boreal forests

Matti Koivula, Tiina Virta, Markku Kuitunen & Elisa Vallius
Urban forests are regularly managed for human safety and aesthetic reasons, but they are crucial habitat for many species. Removals of undergrowth occur commonly in these forests, yet the ecological consequences of these operations are poorly understood. We sampled ground beetles (Coleoptera, Carabidae) and vascular plants along 20-m edge gradients in Finnish urban forests, in five stands treated 0.5−2.5 years earlier with undergrowth removal and in five untreated stands. We hypothesized that undergrowth removal and...

Data from: A link between heritable parasite resistance and mate choice in dung beetles

Bruno A. Buzatto, Janne S. Kotiaho, Larissa A. F. Assis & Leigh W. Simmons
Parasites play a central role in the adaptiveness of sexual reproduction. Sexual selection theory suggests a role for parasite resistance in the context of mate choice, but the evidence is mixed. The parasite-mediated sexual selection (PMSS) hypothesis derives a number of predictions, among which that resistance to parasites is heritable, and that female choice favours parasite resistance genes in males. Here we tested the PMSS hypothesis using the dung beetle Onthophagus taurus, a species that...

Data from: Elevated oxidative stress in pied flycatcher nestlings of eumelanic foster fathers under low rearing temperatures

Pauliina E. Teerikorpi, Janina Stauffer, Petteri Ilmonen, Sara Calhim, Wiebke Schuett & Toni Laaksonen
Striking variation in melanin coloration within natural populations is likely due to the different fitness outcomes of alternative phenotypes in varying environmental conditions. There are two types of melanins. Eumelanins yield blackish hues, while pheomelanins yield reddish hues. The production of eumelanins requires low levels of glutathione (GSH), which is the most important intracellular antioxidant, while the production of pheomelanins requires high levels of GSH. We investigated the oxidative status of male pied flycatchers (Ficedula...

Data from: Strength of sexual and postmating prezygotic barriers varies between sympatric populations with different histories and species abundances

Noora Poikela, Johanna Kinnunen, Mareike Wurdack, Hannele Kauranen, Thomas Schmitt, Maaria Kankare, Rhonda R. Snook & Anneli Hoikkala
The impact of different reproductive barriers on species or population isolation may vary in different stages of speciation depending on evolutionary forces acting within species and through species’ interactions. Genetic incompatibilities between interacting species are expected to reinforce prezygotic barriers in sympatric populations and lead to cascade reinforcement between conspecific populations living within and outside the areas of sympatry. We tested these predictions and studied whether and how the strength and target of reinforcement between...

Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak

Ville Räihä, Lotta-Riina Sundberg, Roghaieh Ashrafi, Pekka Hyvärinen & Anssi Karvonen
1. Parasitic diseases represent one of the greatest challenges for aquaculture worldwide and there is an increasing emphasis on ecological solutions to prevent infections. One proposed solution is enriched rearing, where traditional stimulus-poor rearing tanks are equipped with different types of structures to increase habitat complexity. Such spatial enrichment is known to increase survival of fish during parasite epidemics, but the underlying mechanisms are still unclear. 2. We studied whether enriched rearing affected infection of...

Female preference and adverse developmental effects of glyphosate-based herbicides on ecologically relevant traits in Japanese quail

Suvi Ruuskanen, Rainio Miia, Venla Kuosmanen, Miika Laihonen, Kari Saikkonen, Irma Saloniemi & Marjo Helander
Controversial glyphosate-based herbicides (GBHs) are the most frequently used herbicides globally. An increasing number of studies have identified GBH residues in soil, water and even human food that may expose non-target organism including wildlife, livestock, and humans to health risks. After a heated debate, European Union allowed the use of GBHs to continue until 2022, after which their risks will be re-evaluated. Thus, decision makers urgently need scientific evidence on GBH residues and their possible...

Data from: The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agro-ecosystem services across Europe

Emily A. Martin, Matteo Dainese, Yann Clough, András Báldi, Riccardo Bommarco, Vesna Gagic, Michael Garratt, Andrea Holzschuh, David Kleijn, Anikó Kovács-Hostyánszki, Lorenzo Marini, Simon G. Potts, Henrik G. Smith, Diab Al Hassan, Matthias Albrecht, Georg K. S. Andersson, Josep Asis, Stephanie Aviron, Mario Balzan, Laura Baños-Picón, Ignasi Bartomeus, Peter Batary, Françoise Burel, Berta Caballero-López, Elena D. Concepcion … & Ingolf Steffan-Dewenter
Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields. Configuration effects interacted with...

Need for speed: Short lifespan selects for increased learning ability - Data

Jannis Liedtke & Lutz Fromhage
The first dataset provides the R code for the simualiton. The other datasets give trait values of "learning speed" ("L") for each Individual in each generation (1-200) for different lifespans (season length). From season length 1 to 800. One dataframe ("Metapop") provide results of all 10 runs and give the mean trait value ("L") for a given sl (1-800) for each run. One dataframe ("Meta118") provide results of all 10 runs and give the individual...

Measuring phenotypes in fluctuating environments

Tim Burton, Hanna-Kaisa Lakka & Sigurd Einum
1. Despite considerable theoretical interest in how the evolution of phenotypic plasticity should be shaped by environmental variability and stochasticity, how individuals actually respond to these aspects of the environment within their own lifetimes remains unclear. 2. We propose that this understanding has been hampered by experimental approaches that expose organisms to fluctuating environments (typically treatments where fluctuations in the environment are cyclical versus erratic) for a pre-determined duration, while ensuring that the mean environment...

Data from: Heat hardening capacity in Drosophila melanogaster is life stage specific and juveniles show the highest plasticity

Neda Nasiri Moghadam, Tarmo Ketola, Cino Pertoldi, Simon Bahrndorff & Torsten Kristensen
Variations in stress resistance and adaptive plastic responses during ontogeny have rarely been addressed, despite the possibility that differences between life stages can affect species' range margins and thermal tolerance. Here, we assessed the thermal sensitivity and hardening capacity of Drosophila melanogaster across developmental stages from larval to the adult stage. We observed strong differences between life stages in heat resistance, with adults being most heat resistant followed by puparia, pupae and larvae. The impact...

Data from: The role of fish life histories in allometrically scaled food-web dynamics

Stephanie Bland, Fernanda Valdovinos, Jeffrey Hutchings & Anna Kuparinen
1. Body size determines key ecological and evolutionary processes of organisms. Therefore, organisms undergo extensive shifts in resources, competitors and predators as they grow in body size. While empirical and theoretical evidence show that these size-dependent ontogenetic shifts vastly influence the structure and dynamics of populations, theory on how those ontogenetic shifts affect the structure and dynamics of ecological networks is still virtually absent. 2. Here, we expand the Allometric Trophic Network (ATN) theory in...

Data from: Targeting antibiotic resistant bacteria with phages reduces bacterial density in an insect host

Lauri Mikonranta, Angus Buckling, Matti Jalasvuori & Ben Raymond
Phage therapy is attracting growing interest among clinicians as antibiotic resistance continues becoming harder to control. However, clinical trials and animal model studies on bacteriophage treatment are still scarce and results on the efficacy vary. Recent research suggests that using traditional antimicrobials in concert with phage could have desirable synergistic effects that hinder the evolution of resistance. Here, we present a novel insect gut model to study phage-antibiotic interaction in a system where antibiotic resistance...

Data from: Transparency reduces predator detection in mimetic clearwing butterflies

Mónica Arias, Johanna Mappes, Charlotte Desbois, Swanne Gordon, Melanie McClure, Marianne Elias, Ossi Nokelainen & Doris Gomez
1. Predation is an important selective pressure and some prey have evolved conspicuous warning signals that advertise unpalatability (i.e. aposematism) as an antipredator defence. Conspicuous colour patterns have been shown effective as warning signals, by promoting predator learning and memory. Unexpectedly, some butterfly species from the unpalatable tribe Ithomiini possess transparent wings, a feature rare on land but common in water, known to reduce predator detection. 2. We tested if transparency of butterfly wings was...

Data from: Gray plumage color is more cryptic than brown in snowy landscapes in a resident color polymorphic bird

Katja Koskenpato, Aleksi Lehikoinen, Carita Lindstedt & Patrik Karell
Camouflage may promote fitness of given phenotypes in different environments. The tawny owl (Strix aluco) is a colour polymorphic species with a grey and brown morph resident in the Western Palearctic. A strong selection pressure against the brown morph during snowy and cold winters has been documented earlier but the selection mechanisms remain unresolved. Here we hypothesise that selection favors the grey morph because it is better camouflaged against predators and mobbers in snowy conditions...

Registration Year

  • 2019
    18

Resource Types

  • Dataset
    18

Affiliations

  • University of Jyväskylä
    18
  • University of Würzburg
    2
  • French National Centre for Scientific Research
    2
  • University of Helsinki
    2
  • University of Turku
    2
  • University of Padua
    1
  • Estación Biológica de Doñana
    1
  • University of Eastern Finland
    1
  • University of Hamburg
    1
  • École Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine
    1