Data from: Fitting functional responses: direct parameter estimation by simulating differential equationsBenjamin Rosenbaum & Björn Christian Rall
1. The feeding functional response is one of the most widespread mathematical frameworks in Ecology, Marine Biology, Freshwater Biology, Microbiology and related scientific fields describing the resource-dependent uptake of a consumer. Since the exact knowledge of its parameters is crucial to predict, for example, the efficiency of biocontrol agents, population dynamics, food web structure and subsequently biodiversity, a trustworthy parameter estimation method is highly important for scientists using this framework. Classical approaches for estimating functional...
Data from: Trait means, trait plasticity and trait differences to other species jointly explain species performances in grasslands of varying diversityChristiane Roscher, Marlén Gubsch, Annett Lipowsky, Jens Schumacher, Alexandra Weigelt, Nina Buchmann, Ernst-Detlef Schulze & Bernhard Schmid
Functional traits may help to explain the great variety of species performances in plant communities, but it is not clear whether the magnitude of trait values of a focal species or trait differences to co-occurring species are key for trait-based predictions. In addition, trait expression within species is often plastic, but this variation has been widely neglected in trait-based analyses. We studied functional traits and plant biomass of 59 species in 66 experimental grassland mixtures...
Data from: Spatial analyses of two color polymorphisms in an alpine grasshopper reveal a role of small‐scale heterogeneityPetra Dieker, Luisa Beckmann, Julia Teckentrup & Holger Schielzeth
Discrete color polymorphisms represent a fascinating aspect of intraspecific diversity. Color morph ratios often vary clinally, but in some cases, there are no marked clines and mixes of different morphs occur at appreciable frequencies in most populations. This poses the questions of how polymorphisms are maintained. We here study the spatial and temporal distribution of a very conspicuous color polymorphism in the club‐legged grasshopper Gomphocerus sibiricus. The species occurs in a green and a nongreen...
Data from: Locally and systemically induced glucosinolates follow optimal defence allocation theory upon root herbivoryTomonori Tsunoda, Katharina Grosser & Nicole M. Van Dam
1. Herbivore-induced defences in plants are considered a strategy to manage multiple interactions while saving resources. The optimal defence theory (ODT) is one of the most prominent theoretical frameworks to explain the defence allocation patterns within plants. It was recently shown that the ODT generally applies to constitutive glucosinolate (GSL) allocation in shoot and root organs. Previous studies showed that both root and shoot herbivore feeding may alter defence allocation over plant organs. For shoots,...
Data from: Trait patterns of epiphytes compared to other plant life forms along a tropical elevation gradientDavid Schellenberger Costa, Gerhard Zotz, Andreas Hemp & Michael Kleyer
Compared to other plant life forms, epiphytes remain understudied. Understanding the responses of epiphytes to changing environmental conditions is necessary to predict changes in ecosystem functioning especially in subtropical and tropical regions. We investigated the functional traits of epiphytes along a large elevation gradient on Mount Kilimanjaro, Tanzania. We measured traits of co-occurring trees and terrestrial non-tree life forms, and compared changes in community-weighted means of traits (CWM) and trait spread, the range of observed...
Data from: A phylogenomic approach to reconstruct interrelationships of main clupeocephalan lineages with a critical discussion of morphological apomorphies.Nicolas Straube, Chenhong Li, Matthias Mertzen, Hao Yuan & Timo Moritz
Background: Previous molecular studies on the phylogeny and classification of clupeocephalan fishes revealed numerous new taxonomic entities. For re-analysing these taxa on a phylogenomic scale, we perform target gene capturing and subsequent next generation sequencing of putative ortholog exons of major clupeocephalan lineages. Sequence information for the RNA bait design was derived from publicly available genomes of bony fishes. Newly acquired sequence data comprising >800 exon sequences was subsequently used for phylogenetic reconstructions. Results: Our...
Genetic and phenotypic mosaics, in which various phenotypes and different genomic regions show discordant patterns of species or population divergence, offer unique opportunities to study the role of ancestral and introgressed genetic variation in phenotypic evolution. Here, we investigated the evolution of discordant phenotypic and genetic divergence in a monophyletic clade of four songbird taxa – pied wheatear (O. pleschanka), Cyprus wheatear (O. cypriaca), and western and eastern subspecies of black-eared wheatear (O. h. hispanica...
Hemipteroid insects (Paraneoptera), with over 10% of all known insect diversity, are a major component of terrestrial and aquatic ecosystems. Previous phylogenetic analyses have not consistently resolved the relationships among major hemipteroid lineages. We provide maximum likelihood-based phylogenomic analyses of a taxonomically comprehensive dataset comprising sequences of 2,395 single-copy, protein-coding genes for 193 samples of hemipteroid insects and outgroups. These analyses yield a well-supported phylogeny for hemipteroid insects. Monophyly of each of the three hemipteroid...
Data from: Ultraviolet radiation exposure time and intensity modulate tomato resistance against herbivory through activation of the jasmonic acid signalingRocío Escobar-Bravo, Gang Chen, Hye Kyong Kim, Katharina Grosser, Nicole M. Van Dam, Kirsten A. Leiss, Peter G.L. Klinkhamer & Peter G L Klinkhamer
Ultraviolet (UV) radiation can modulate plant defenses against herbivorous arthropods. We investigated how different UV exposure times and irradiance intensities affected tomato (Solanum lycopersicum) resistance to thrips (Frankliniella occidentalis) by assessing UV effects on thrips-associated damage and host-selection, selected metabolite and phytohormone contents, expression of defense-related genes, and trichome density and chemistry, the latter having dual roles in defense and UV protection. Short UV daily exposure times increased thrips resistance in the cultivar ‘Moneymaker’ but...
Data from: Applying generalised allometric regressions to predict live body mass of tropical and temperate arthropodsEsra H. Sohlström, Lucas Marian, Andrew D. Barnes, Noor F. Haneda, Stefan Scheu, Björn C. Rall, Ulrich Brose & Malte Jochum
1. The ecological implications of body size extend from the biology of individual organisms to ecosystem–level processes. Measuring body mass for high numbers of invertebrates can be logistically challenging, making length-mass regressions useful for predicting body mass with minimal effort. However, standardised sets of scaling relationships covering a large range in body length, taxonomic groups, and multiple geographical regions are scarce. 2. We collected 6212 arthropods from 19 higher-level taxa in both temperate and tropical...
Friedrich Schiller University Jena10
German Center for Integrative Biodiversity Research5
Helmholtz Centre for Environmental Research1
University of Hamburg1
Ferdowsi University of Mashhad1
Tokyo Metropolitan University1
Zoological Research Museum Alexander Koenig1
University of Waikato1
Natural History Museum1