58 Works

Immunosenescence in the wild? A longitudinal study in a long‐lived seabird

Coraline Bichet, Maria Moiron, Kevin D. Matson, Oscar Vedder & Sandra Bouwhuis
1. Longitudinal studies of various vertebrate populations have demonstrated senescent declines in reproductive performance and survival probability to be almost ubiquitous. Longitudinal studies of potential underlying proximate mechanisms, however, are still scarce. 2. Due to its critical function in the maintenance of health and viability, the immune system is among the potential (mediators of) proximate mechanisms that could underlie senescence. 3. Here, we studied three innate immune parameters - hemagglutination titre, haemolysis titre and haptoglobin...

Hawksbill turtle ddRAD raw sequencing data

Jurjan Van Der Zee, Marjolijn Christianen, Mabel Nava, Sietske Van Der Wal, Jessica Berkel, Tadzio Bervoets, Melanie Meijer Zu Schlochtern, Martine Bérubé, Leontine Becking & Per Palsbøll
Pleistocene environmental changes are generally assumed to have dramatically affected species’ demography via changes in habitat availability, but this is challenging to investigate due to our limited knowledge of how Pleistocene ecosystems changed through time. Here, we tracked changes in shallow marine habitat availability resulting from Pleistocene sea level fluctuations throughout the last glacial cycle (120 – 14 thousand years ago; kya) and assessed correlations with past changes in genetic diversity inferred from genome-wide SNPs,...

Plant traits of grass and legume species for flood resilience and N2O mitigation

Natalie J. Oram, Yan Sun, Diego Abalos, Jan-Willem Van Groenigen, & Gerlinde De Deyn
Flooding threatens the functioning of managed grasslands by decreasing primary productivity and increasing nitrogen losses, notably as the potent greenhouse gas nitrous oxide (N2O). Sowing species with traits that promote flood resilience and mitigate flood-induced N2O emissions within these grasslands could safeguard their productivity while mitigating nitrogen losses. We tested how plant traits and resource acquisition strategies could predict flood resilience and N2O emissions of 12 common grassland species (eight grasses and four legumes) grown...

Zebra finch song and distance call amplitude measurements: A transmission experiment and observational transects in the natural environment

Hugo Loning, Simon C. Griffith & Marc Naguib
Birdsong is typically seen as a long-range signal functioning in mate attraction and territory defense. Among birds, the zebra finch is the prime model organism in bioacoustics, yet almost exclusively studied in the lab. In the wild, however, zebra finch song differs strikingly from songbirds commonly studied in the wild as zebra finch males sing most after mating and in the absence of territoriality. Using data from the wild, we here provide an ecological context...

Data from: Ecological requirements drive the variable responses of wheat pests and natural enemies to the landscape context

Ezequiel Gonzalez, Felix J.J.A. Bianchi, Philipp Eckerter, Verena Pfaff, Sarah Weiler & Martin H. Entling
1. Semi-natural habitats (SNH) are considered essential for pest suppressive landscapes, but their influence on crop pests and natural enemies can be highly variable. Instead of SNH per se, the availability of resources, such as pollen and nectar, may be more relevant for supporting pest control. 2. Here, we assessed the spatio-temporal variation of multiple insect pests (cereal leaf beetles and aphids) and natural enemies (predators and aphid parasitoids) in wheat fields and their responses...

Microplastics in Eurasian otter (Lutra lutra) spraints and their potential as a biomonitoring tool in freshwater systems

James D. O'Connor, Heather T. Lally, Anne-Marie Mahon, Ian O'Connor, Róisín Nash, John J. O'Sullivan, Michael Bruen, Linda Heerey, Albert A. Koelmans, Ferdia Marnell & Sinéad Murphy
The ubiquitous nature of microplastics in aquatic ecosystems may have serious implications for aquatic biota. While microplastic research in freshwater ecosystems is increasing, very few studies have assessed the physical presence of microplastics among top predators. The Eurasian otter (Lutra lutra), a top predator of aquatic ecosystems, is one of the most widely distributed otter species and has a broad habitat niche. The opportunistic collection of otter spraints (i.e. feces) presents a valuable opportunity to...

Adaptive population structure shifts in invasive parasitic mites, Varroa destructor

Arrigo Moro, Tjeerd Blacquière, Bjorn Dahle, Vincent Dietemann, Yves Le Conte, Locke Barbara, Peter Neumann & Alexis Beaurepaire
Comparative studies of genetic diversity and population structure can shed light on the ecological and evolutionary factors governing host–parasite interactions. Even though invasive parasites are considered of major biological importance, little is known about their adaptive potential when infesting the new hosts. Here, the genetic diversification of Varroa destructor, a novel parasite of Apis mellifera originating from Asia, was investigated using population genetics to determine how the genetic structure of the parasite changed in distinct...

Inconsistent effects of agricultural practices on soil fungal communities across twelve European long‐term experiments

S. Emilia Hannula, D. P. Di Lonardo, B. T. Christensen, F.V. Crotty, A. Elsen, P.J. Erp, E.M. Hansen, G. H. Rubæk, M. Tits, Z. Toth & A. J. Termorshuizen
Cropping practices have a great potential to improve soil quality through changes in soil biota. Yet the effects of these soil improving cropping systems on soil fungal communities are not well known. Here, we analysed soil fungal communities using standardized measurements in 12 long‐term experiments and 20 agricultural treatments across Europe. We were interested in whether the same practices (i.e. tillage, fertilization, organic amendments and cover crops) applied across different sites have predictable and repeatable...

Responses of tropical tree seedlings in the forest-savanna boundary to combined effects of grass competition and fire

Hamza Issifu, Philippine Vergeer, George K. D. Ametsitsi, Jelle Klijn, Paolo Sartorelli, Millicent Tanson, Hypolite Bayor, Vincent Logah, Frank Van Langevelde, Elmar Veenendaal, Hamza Issifu, Philippine Vergeer, George K. D. Ametsitsi, Jelle Klijn, Paolo Sartorelli, Millicent Tanson, Hypolite Bayor, Vincent Logah, Frank Van Langevelde, Elmar Veenendaal., Hamza Issifu, Philippine Vergeer, George K. D. Ametsitsi, Jelle Klijn, Paolo Sartorelli … & Elmar Veenendaal.
Co-occurring tree functional types (TFTs) within forest-savanna transitions may differ in seedling responses to grass competition and fire in savannas. We performed a common garden experiment in the Guinea savanna of Ghana to test hypotheses related to competition effects on growth, allocation to root storage reserves and subsequent survival responses to dry season fire for savanna-transitional TFT (i.e., species occurring both in forest and savanna) and forest TFT. The experiment included factorial combinations of TFT,...

Genome and transcriptome analysis of the beet armyworm Spodoptera exigua reveals targets for pest control

Sabrina Simon, Thijmen Breeschoten, M. Eric Schranz, Vera I.D. Ros, Hans J. Jansen & Ron P. Dirks
The genus Spodoptera (Lepidoptera: Noctuidae) includes some of the most infamous insect pests of cultivated plants including Spodoptera frugiperda, Spodoptera litura and Spodoptera exigua. To effectively develop targeted pest control strategies for diverse Spodoptera species, genomic resources are highly desired. To this aim, we provide the genome assembly and developmental transcriptome comprising all major life stages of S. exigua, the beet armyworm. Spodoptera exigua is a polyphagous herbivore that can feed from > 130 host...

The effect of body size on co-occurrence patterns within an African carnivore guild

Sander Vissia
Intraguild interactions among mammalian carnivores are important in shaping carnivore guild composition. Competing species may inhabit different areas and/or being active during different times to reduce the risk of aggressive interactions, but the role of body size in intraguild interactions within carnivore guilds remains largely unknown. We determined spatial and temporal co-occurrence of small, medium-sized and large carnivores of the carnivore guild in central Tuli, Botswana: lion Panthera leo, leopard Panthera pardus, spotted hyena Crocuta...

Green turtle ddRAD raw sequencing data

Jurjan Van Der Zee, Marjolijn Christianen, Martine Bérubé, Mabel Nava, Kaj Schut, Frances Humber, Alonzo Alfaro-Núñez, Leontine Becking & Per Palsbøll
The occasional westward transport of warm water of the Agulhas Current, ‘Agulhas leakage’, around southern Africa has been suggested to facilitate tropical marine connectivity between the Atlantic and Indian oceans, but the ‘Agulhas leakage’ hypothesis doesn’t explain the signatures of eastward gene flow observed in many tropical marine fauna. We investigated an alternative hypothesis: the establishment of a warm-water corridor during comparatively warm interglacial periods. The ‘warm-water corridor’ hypothesis was investigated by studying the population...

Concentration of selected proteins in plasma of patient with soft tissue infections or sepsis

Laura Marcela Palma Medina, Eivind Rath, Sanjeevan Jahagirdar, Trond Bruun, Martin Bruun Madsen, Kristoffer Strålin, Christian Unge, Marco Bo Hansen, Per Arnell, Michael Nekludov, Ole Hyldegaard, Vitor A.P. Martins Dos Santos, Edoardo Saccenti, Steinar Skrede, Mattias Svensson & Anna Norrby-Teglund
The dataset includes two tabular sets of concentration measurements of selected proteins in plasma samples from patients with soft tissue infections or sepsis. Patients with soft tissue infections are classified into three groups: Patients with necrotizing soft tissue infections (NSTI), suspected NSTI cases but where no necrotic tissue was found during surgical exploration (Non-NSTI) and cellulitis. The sepsis patient cohort has heterogeneous etiologies and location of infection. Additionally, we included a group of patients that...

Lianas have more acquisitive traits than trees in a dry but not in a wet forest

José Medina-Vega, Frans Bongers, Lourens Poorter, Stefan Schnitzer & Frank Sterck
Lianas are increasing in relative abundance and biomass in many tropical forests. We tested the hypothesis that lianas conform to the fast and acquisitive end of the continuum of plant strategies, allowing lianas to acquire resources faster than trees. We assessed functional traits representative of the leaf (LES) and wood economics spectrum (WES), including plant hydraulics, in 16 liana and 16 tree species in the canopy of two tropical forests at the extremes of the...

The Enterprise, a massive transposon carrying Spok meiotic drive genes

Sandra Lorena Ament-Velásquez, Aaron A. Vogan, Eric Bastiaans, Ola Wallerman, Sven J. Saupe, Alexander Suh & Hanna Johannesson
The genomes of eukaryotes are full of parasitic sequences known as transposable elements (TEs). Most TEs studied to date are relatively small (50 – 12000 bp), but can contribute to very large proportions of genomes. Here we report the discovery of a putative giant tyrosine-recombinase-mobilized DNA transposon, Enterprise, from the model fungus Podospora anserina. Previously, we described a large genomic feature called the Spok block which is notable due to the presence of meiotic drive...

High spatial resolution mapping identifies habitat characteristics of the invasive vine Antigonon leptopus on St. Eustatius (Lesser Antilles)

Elizabeth Haber, Maria Santos, Pedro Leitão, Marcel Schwieder, Pieter Ketner, Joris Ernst, Max Rietkerk, Martin Wassen & Maarten Eppinga
On the Caribbean island of St. Eustatius, Coralita (Antigonon leptopus) is an aggressive invasive vine posing major biodiversity conservation concerns. The generation of distribution maps can address these conservation concerns by helping to elucidate the drivers of invasion. We test the use of support vector machines to map the distribution of Coralita on St. Eustatius at high spatial resolution and use this map to identify potential landscape and geomorphological factors associated with Coralita presence. This...

Adaptive evolution of flight in Morpho butterflies

Camille Le Roy, Dario Amadori, Samuel Charberet, Jaap Windt, Florian Muijres, Violaine Llaurens & Vincent Debat
The diversity of flying animals suggests that countless combinations of flight morphologies and behaviors have evolved with specific lifestyles, thereby exploiting diverse aerodynamic mechanisms. How morphology, flight behavior and aerodynamic properties together diversify with contrasting ecology remains to be elucidated. We studied the adaptive co-divergence in wing shape, flight behavior and aerodynamic efficiency among Morpho butterflies living in different forest strata, by combining high-speed videography in the field with morphometric analyses and aerodynamic modelling. By...

Autogenic regulation and resilience in tropical dry forest

Rodrigo Muñoz, Frans Bongers, Danae Rozendaal, Edgar Javier González, Juan Manuel Dupuy & Jorge Meave
1. Engineering resilience, a forest’s ability to maintain its properties in the event of disturbance, comprises two components: resistance and recovery. In human-dominated landscapes, forest resilience depends mostly on recovery. Forest recovery largely depends on autogenic regulation, which entails a negative feedback loop between rates of change of forest state variables and state variables themselves. Hence community dynamics changes in response to deviations from forest equilibrium state. Based on the premise that autogenic regulation is...

Impact of cellulose-rich organic soil amendments on growth dynamics and pathogenicity of Rhizoctonia solani

Anna Clocchiatti, Emilia Hannula, Muhammad Syamsu Rizaludin, Maria Hundscheid, Paulien Klein Gunnewiek, Mirjam Schilder, Joeke Postma & Wietse De Boer
Cellulose-rich amendments stimulate saprotrophic fungi in arable soils. This may increase competitive and antagonistic interactions with root-infecting pathogenic fungi, resulting in lower disease incidence. However, cellulose-rich amendments may also stimulate pathogenic fungi with saprotrophic abilities, thereby increasing plant disease severity. The current study explores these scenarios, with a focus on the pathogenic fungus Rhizoctonia solani. Saprotrophic growth of R. solani on cellulose-rich materials was tested in vitro. This confirmed paper pulp as a highly suitable...

The genome of the haptophyte Diacronema lutheri (Pavlova lutheri, Pavlovales)

Chris J Hulatt, René H Wijffels & Matthew C Posewitz
Haptophytes are biogeochemically and industrially important protists, but we know little about their genomic diversity. Here we sequenced the nuclear genome of Diacronema lutheri (Pavlova lutheri, Pavlovales) using third generation PacBio long-read sequencing coupled with Illumina sequencing. The genome was assembled with CANU and subsequently polished using both PacBio and Illumina reads to high consensus accuracy. Genome annotation was performed using BRAKER2 and three sets of RNA-seq evidence. The dataset presented here comprises two files...

Demographic differentiation among pioneer tree species during old-field succession of a Neotropical rainforest

Miguel Martínez-Ramos, María Del Mar Gallego-Mahecha, María Teresa Valverde Valdés, Ernesto Vicente Vega Peña & Frans Bongers
Early pioneer species share life histories enabling them to colonize disturbed sites, but how much they differ demographically and how such differentiation determines pioneer species turnover during succession are still open questions. Here, we approached these issues by comparing the demography of dominant pioneer tree species during the old-field succession of tropical rainforest in Southeast Mexico. We assessed changes in population density, population structure, vital rates, and intrinsic population growth rate (r) of the pioneer...

Pollinator visits to six plant species in an oil palm landscape

Candice C. Power, Anders Nielsen & Douglas Sheil
Pollination sustains biodiversity and food security, but pollinators are threatened by habitat degradation, fragmentation and loss. Here we aimed to assess how remaining forests influence bee visits to flowers in an oil palm dominated landscape in Borneo, Indonesia. To do this, we observed pollinator visits to six plant species: four crops (Capsicum frutescens L. “chili”; Citrullus lanatus (Thunb.) Matsum. & Nakai “watermelon”; Solanum lycopersicum L. “tomato”; and Solanum melongena L. “eggplant”); one native plant Melastoma...

Intra-specific variation in plant associated herbivore communities is phylogenetically structured in Brassicaceae

Daan Mertens, Klaas Bouwmeester & Erik Poelman
As a result of co-evolution between plants and herbivores, related plants often interact with similar herbivore communities. Variation in plant-herbivore interactions is determined by variation in underlying functional traits and by ecological and stochastic processes. Hence, typically only a subset of possible interactions is realized on individual plants. We show that insect herbivore communities assembling on individual plants are structured by plant phylogeny among twelve species in two phylogenetic lineages of Brassicaceae. This community sorting...

Hydraulic prediction of drought-induced plant dieback and top-kill depends on leaf habit and growth form

Ya-Jun Chen, Brendan Choat, Frank Sterck, Phisamai Maenpuen, Masatoshi Katabuchi, Shu-Bin Zhang, Kyle Tomlinson, Rafael Oliveira, Yong-Jiang Zhang, Kun-Fang Cao & Steven Jansen
Hydraulic failure caused by severe drought contributes to aboveground dieback and whole-plant death. The extent to which dieback or whole-plant death can be predicted by plant hydraulic traits has rarely been tested among species with different leaf habits and/or growth forms. We investigated 19 hydraulic traits in 40 woody species in a tropical savanna and their potential correlations with drought response during an extreme drought event during the El Niño–Southern Oscillation in 2015. Plant hydraulic...

Why forest fails to recover after repeated wildfires in Amazonian floodplains? Experimental evidence on tree recruitment limitation

Bernardo Flores & Milena Holmgren
Amazonian floodplain forests are particularly vulnerable to wildfires that spread during extreme droughts, causing large scale forest dieback. After a second wildfire, these forests persist trapped with low tree cover and empty seed banks, yet the mechanisms that could explain this arrested succession remain unknown. Here we use a four-year field experiment to test whether tree recruitment failures in burnt floodplain forests are caused by environmental filtering, limiting early seedling emergence and establishment. We sowed...

Registration Year

  • 2021
    58

Resource Types

  • Dataset
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  • Data Paper
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Affiliations

  • Wageningen University & Research
    58
  • National Autonomous University of Mexico
    4
  • University of Groningen
    3
  • Aarhus University
    3
  • University of Leeds
    3
  • National Research Institute for Agriculture, Food and Environment
    2
  • Federal University of Lavras
    2
  • University of California, Berkeley
    2
  • Nederlands Instituut voor Ecologie
    2
  • Netherlands Institute of Ecology
    2