23 Works

Data from: Increasing plant diversity of experimental grasslands alters the age and growth of Plantago lanceolata from younger and faster to older and slower

Anna Roeder, Fritz H. Schweingruber, Markus Fischer & Christiane Roscher
The persistence of plant populations depends on the ability of individuals to cope with the conditions provided by the community. So far, it is not known whether differences in the diversity and composition of plant communities affect the age structure of plant populations or the expression of stem anatomical traits reflecting investment into plant growth and storage. We analyzed annual growth rings in the secondary xylem and measured stem anatomical traits in individuals from 18...

Data from: Transcriptomic signatures of social experience during early development in a highly social cichlid fish

Cecilia Nyman, Francois Olivier Hebert, Mathilde Bessert-Nettelbeck, Nadia Aubin-Horth & Barbara Taborsky
The social environment encountered early during development can temporarily or permanently influence life history decisions and behaviour of individuals and correspondingly shape molecular pathways. In the highly social cichlid fish Neolamprologus pulcher, deprivation of brood care permanently affects social behaviour, and alters the expression of stress axis genes in juveniles and adults. It is unclear when gene expression patterns change during early life depending on social experience, and which genes are involved. We compared brain...

Pathogen defence is a potential driver of social evolution in ambrosia beetles

Jon Andreja Nuotclà, Peter Biedermann & Michael Taborsky
Social immunity – the collective behavioural defences against pathogens - is considered a crucial evolutionary force for the maintenance of insect societies. It has been described and investigated primarily in eusocial insects, but its role in the evolutionary trajectory from parental care to eusociality is little understood. Here, we report on the existence, plasticity, effectiveness and consequences of social pathogen defence in experimental nests of cooperatively breeding ambrosia beetles. After an Aspergillus-spore-buffer solution or a...

Data from: Not every sperm counts: male fertility in solitary bees, Osmia cornuta

Verena Strobl, Lars Straub, Selina Bruckner, Matthias Albrecht, Jakkrawut Maitip, Eleonora Kolari, Panuwan Chantawannakul, Geoffrey R. Williams & Peter Neumann
Reproductive strategies can act as strong selective forces on reproductive traits of male insects, resulting in species-specific variation in sperm quantity and viability. For solitary bees, basic measures of sperm quantity and viability are scarce. Here we evaluated for the first time quantity and viability of sperm in male Osmia cornuta solitary bees at different times after emergence, and how they were affected by male body mass and environmental condition (laboratory or semi-field arena). Sperm...

Data from: Genome-wide variation in nucleotides and retrotransposons in alpine populations of Arabis alpina (Brassicaceae)

Aude Rogivue, Rimjhim Roy Choudhury, Stefan Zoller, Stéphane Joost, Francois Felber, Michel Kasser, Christian Parisod & Felix Gugerli
Advances in high-throughput sequencing have promoted the collection of reference genomes and genome-wide diversity. However, the assessment of genomic variation among populations has hitherto mainly been surveyed through single-nucleotide polymorphisms (SNPs) and largely ignored the often major fraction of genomes represented by transposable elements (TEs). Despite accumulating evidence supporting the evolutionary significance of TEs, comprehensive surveys remain scarce. Here, we sequenced the full genomes of 304 individuals of Arabis alpina sampled from four nearby natural...

Tree diversity is key for promoting the diversity and abundance of forest‐associated taxa in Europe

Eric Allan, Evy Ampoorter, Luc Barbaro, Hervé Jactel, Lander Baeten, Johanna Boberg, Monique Carnol, Bastien Castagneyrol, Yohan Charbonnier, Seid Muhie Dawud, Marc Deconchat, Pallieter De Smedt, Hans De Wandeler, Virginie Guyot, Stephan Hättenschwiler, François‐Xavier Joly, Julia Koricheva, Harriet Milligan, Bart Muys, Diem Nguyen, Sophia Ratcliffe, Karsten Raulund‐Rasmussen, Michael Scherer‐Lorenzen, Fons Plas, J. Van Keer … & Lars Vesterdal
Plant diversity is an important driver of diversity at other trophic levels, suggesting that cascading extinctions could reduce overall biodiversity. Most evidence for positive effects of plant diversity comes from grasslands. Despite the fact that forests are hotspots of biodiversity, the importance of tree diversity, in particular its relative importance compared to other management related factors, in affecting forest‐associated taxa is not well known. To address this, we used data from 183 plots, located in...

Data from: Bees and flowers: how to feed an invasive beetle species

Jérémy Gonthier, Anna Papach, Lars Straub, Joshua W. Campbell, Geoffrey R. Williams & Peter Neumann
Invasive species may exploit a wide range of food sources, thereby fostering their success and hampering mitigation, but the actual degree of opportunism is often unknown. The small hive beetle (SHB), Aethina tumida, is a parasite of honeybee colonies endemic to sub-Saharan Africa. SHBs have now spread on all habitable continents and can also infest colonies of other social bees. To date, the possible role of solitary bee nests as alternative hosts is unknown. Similarly,...

Data from: Evaluating NGS methods for routine monitoring of wild bees: metabarcoding, mitogenomics or NGS barcoding

Morgan Gueuning, Dominik Ganser, Simon Blaser, Matthias Albrecht, Eva Knop, Christophe Praz & Juerg E. Frey
Implementing cost-effective monitoring programs for wild bees remains challenging due to the high costs of sampling and specimen identification. To reduce costs, next generation sequencing (NGS)-based methods have lately been suggested as alternatives to morphology-based identifications. To provide a comprehensive presentation of the advantages and weaknesses of different NGS-based identification methods, we assessed three of the most promising ones, namely metabarcoding, mitogenomics and NGS barcoding. Using a regular monitoring dataset (723 specimens identified using morphology),...

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...

Data from: Genetic, phenotypic and ecological differentiation suggests incipient speciation in two Charadrius plovers along the Chinese coast

Xuejing Wang, Pinjia Que, Gerald Heckel, Junhua Hu, Xuecong Zhang, Chung-Yu Chiang, Nan Zhang, Qin Huang, Simin Liu, Jonathan Martinez, Emilio Pagani-Núñez, Caroline Dingle, Yu Yan Leung, Tamás Székely, Zhengwang Zhang & Yang Liu
Background: Speciation with gene flow is an alternative to the nascence of new taxa in strict allopatric separation. Indeed, many taxa have parapatric distributions at present. It is often unclear if these are secondary contacts, e.g. caused by past glaciation cycles or the manifestation of speciation with gene flow, which hampers our understanding of how different forces drive diversification. Here we studied genetic, phenotypic and ecological aspects of divergence in a pair of incipient shorebird...

Data from: The impact of income, land, and wealth inequality on agricultural expansion in Latin America

Michele Graziano Ceddia
Agricultural expansion remains the most prominent proximate cause of tropical deforestation in Latin America, a region characterized by deforestation rates substantially above the world average and extremely high inequality. This paper deploys several multivariate statistical models to test whether different aspects of inequality, within a context of increasing agricultural productivity, promote agricultural expansion (Jevons paradox) or contraction (land-sparing) in 10 Latin American countries over 1990–2010. Here I show the existence of distinct patterns between the...

Data from: Effects of forest wildfire on inner-Alpine bird community dynamics

Livio Rey, Marc Kéry, Antoine Sierro, Bertrand Posse, Raphaël Arlettaz & Alain Jacot
As major disturbance agents, natural catastrophes impact habitats, thereby maintaining the dynamics of ecological communities. Such discrete events are expected to positively affect biodiversity because they generate high habitat heterogeneity and thus numerous ecological niche opportunities. Species typical of open and semi-open habitats, which are often of high conservation concern in modern anthropized landscapes, may benefit most from recurrent natural catastrophes that regularly reset ecosystems. We investigated bird community changes and species-specific responses to wildfire...

Widespread intersex differentiation across the stickleback genome – the signature of sexually antagonistic selection?

Daniel Berner, Mirjam Bissegger, Telma Laurentino & Marius Roesti
Females and males within a species commonly have distinct reproductive roles, and the associated traits may be under perpetual divergent natural selection between the sexes if their sex-specific control has not yet evolved. We here explore whether such sexually antagonistic selection can be detected based on the magnitude of differentiation between the sexes across genome-wide genetic polymorphisms by whole-genome sequencing of large pools of female and male threespine stickleback fish. We find numerous autosomal genome...

Embryo survival in the oviduct not significantly influenced by major histocompatibility complex social signaling in the horse

Elise Jeannerat, Eliane Marti, Selina Thomas, Harald Sieme, Claus Wedekind, Dominik Burger & Carolina Herrera
The major histocompatibility complex (MHC) influences sexual selection in various vertebrates. Recently, MHC-linked social signaling was also shown to influence female fertility in horses (Equus caballus) diagnosed 17 days after fertilization. However, it remained unclear at which stage the pregnancy was terminated. Here we test if MHC-linked cryptic female choice in horses happens during the first days of pregnancy, i.e., until shortly after embryonic entrance into the uterus and before fixation in the endometrium. We...

Data from: Heritabilities, social environment effects and genetic correlations of social behaviours in a cooperatively breeding vertebrate

Claudia Kasper, Tanja Schreier & Barbara Taborsky
Social animals interact frequently with conspecifics, and their behaviour is influenced by social context, environmental cues and the behaviours of interaction partners, allowing for adaptive, flexible adjustments to social encounters. This flexibility can be limited by part of the behavioural variation being genetically determined. Furthermore, behaviours can be genetically correlated, potentially constraining independent evolution. Understanding social behaviour thus requires carefully disentangling genetic, environmental, maternal and social sources of variations as well as the correlation structure...

Data from: Neonicotinoids and ectoparasitic mites synergistically impact honeybees

Lars Straub, Geoffrey R. Williams, Beatriz Vidondo, Kitiphong Khongphinitbunjong, Gina Retschnig, Annette Schneeberger, Panuwan Chantawannakul, Vincent Dietemann & Peter Neumann
The Western honeybee, Apis mellifera, is the most important managed pollinator globally and has recently experienced unsustainably high colony losses. Synergistic interactions among stressors are believed to be primarily responsible. However, despite clear evidence of strong effect on honeybee longevity of widely-employed neonicotinoid insecticides and of the ubiquitous ectoparasitic mite Varroa destructor, no data exist to show synergistic effects between these two stressors. Even though neonicotinoids had no significant impact by themselves, we here show...

Data from: Genomic changes in the biological control agent Cryptolaemus montrouzieri associated with introduction

Hao-Sen Li, Gerald Heckel, Yu-Hao Huang, Wei-Jian Fan, Adam Ślipiński & Hong Pang
Biological control is the main purpose of intentionally introducing non-native invertebrate species. The evolutionary changes that occur in the populations of the introduced biological control agents may determine the agent's efficiency and the environmental safety. Here, to explore the pattern and extent of potential genomic changes in the worldwide introduced predatory ladybird beetle Cryptolaemus montrouzieri, we used a reduced-representation sequencing method to analyze the genome-wide differentiation of the samples from two native and five introduced...

Data from: Micronutrients may influence the efficacy of ectomycorrhizas to support tree seedlings in a lowland African rain forest

David M. Newbery & Godlove A. Neba
In the lowland rain forest of SW Cameroon, a field experiment tested whether ectomycorrhizal hyphal connections might affect the growth and survival of seedlings of a principal tree species, Microberlinia bisulcata, close to its adults. Nursery‐raised seedlings were planted into fine‐, medium‐, and coarse‐mesh root bags, and as no‐bag controls, in replicate subplots. The bags prevented fungal hyphae, and fine‐ and medium‐sized roots, respectively, entering from the outside forest floor root mat. Harvests were taken...

Dual community assembly processes in dryland biocrusts communities

David Eldridge & Santiago Soliveres
1. Biocrusts are critical components of drylands where they regulate a wide range of ecosystem functions, however, their response to the worldwide phenomenon of shrub encroachment and to livestock grazing, the most extensive land use in drylands, are not well studied. Grazing by livestock and increases in shrub cover could influence biocrust communities directly via trampling or shading, or indirectly, by altering biotic interactions amongst biocrust taxa. The extent of these changes in biocrust cover,...

Butterfly phenology in Mediterranean mountains using space-for-time substitution

Konstantina Zografou, Andrea Grill, Robert Wilson, John Halley, George Adamidis & Vassiliki Kati
Inferring species' responses to climate change in the absence of long-term time series data is a challenge, but can be achieved by substituting space for time. For example, thermal elevational gradients represent suitable proxies to study phenological responses to warming. We used butterfly data from two Mediterranean mountain areas to test whether mean dates of appearance of communities and individual species show a delay with increasing altitude, and an accompanying shortening in the duration of...

Plant defense resistance in natural enemies of a specialist insect herbivore

Xi Zhang, Cong Van Doan, Carla C.M. Arce, Lingfei Hu, Sandra Gruenig, Christian Parisod, Bruce E. Hibbard, , Chad Nielson, Christelle A.M. Robert, Ricardo A.R. Machado & Matthias Erb
Plants defend themselves against herbivores through the production of toxic and deterrent metabolites. Adapted herbivores can tolerate and sometimes sequester these metabolites, allowing them to feed on defended plants and become toxic to their own enemies. Can herbivore natural enemies overcome sequestered plant defense metabolites to prey on adapted herbivores? To address this question, we studied how entomopathogenic nematodes cope with benzoxazinoid defense metabolites that are produced by grasses and sequestered by a specialist maize...

Insects and light interact to mediate vine colonization of fast-growing Microberlinia bisulcata tree seedlings in gaps of an African rainforest

Julian M. Norghauer
Vines thrive in lowland tropical forests yet the biotic factors underlying their colonization of host tree seedlings and saplings remain surprisingly understudied. Insect herbivores presumably could influence this process, especially where disturbance has opened the canopy (i.e., gaps)—temporary areas of higher primary productivity favoring the recruitment of vines and trees and invertebrates in forests—but their impact on vine colonization has never been experimentally tested. Using data from an insect-herbivore exclusion (mesh-netting cages) experiment conducted in...

Registration Year

  • 2019
    23

Resource Types

  • Dataset
    22
  • Text
    1

Affiliations

  • University of Bern
    23
  • University of Neuchâtel
    3
  • Agroscope
    3
  • University of Würzburg
    2
  • Auburn University
    2
  • Swiss Federal Institute for Forest, Snow and Landscape Research
    2
  • Chiang Mai University
    2
  • Helmholtz Centre for Environmental Research
    1
  • University of Padua
    1
  • Sun Yat-sen University
    1