Data from: Effects of management on aquatic tree-hole communities in temperate forests are mediated by detritus amount and water chemistryMartin M. Gossner, Peggy Lade, Anja Rohland, Nora Sichardt, Tiemo Kahl, Jürgen Bauhus, Wolfgang W. Weisser & Jana S. Petermann
1. Arthropod communities in water-filled tree-holes may be sensitive to impacts of forest management, for example via changes in environmental conditions such as resource input. 2. We hypothesized that increasing forest management intensity negatively affects arthropod abundance and richness and shifts community composition and trophic structure of tree-hole communities. We predicted that this shift is caused by reduced habitat and resource availability at the forest stand scale as well as reduced tree-hole size, detritus amount...
Data from: Herbivore-induced changes in flower scent and morphology affect the structure of flower–visitor networks but not plant reproductionMathias Hoffmeister, Nico Wittköpper & Robert R. Junker
Herbivory induces various responses in plants, thus altering the plants’ phenotype in chemical and morphological traits. Herbivore-induced changes in vegetative plant parts, plant-physiological mechanisms, and effects on plant-animal interactions have been intensively studied from species to community level. In contrast, we are just beginning to examine herbivore-induced effects on reproductive plant parts and flower–visitor interactions, especially in a community context. We investigated the effect of herbivory at different plant developmental stages on plant growth, floral...
Data from: Differentiating self-projection from simulation during mentalizing: evidence from fMRIMatthias Schurz, Christoph Kogler, Thomas Scherndl, Martin Kronbichler & Anton Kühberger
We asked participants to predict which of two colors a similar other (student) and a dissimilar other (retiree) likes better. We manipulated if color-pairs were two hues from the same color-category (e.g. green) or two conceptually different colors (e.g. green versus blue). In the former case, the mental state that has to be represented (i.e., the percept of two different hues of green) is predominantly non-conceptual or phenomenal in nature, which should promote mental simulation...
Data from: Multiple independent origins of auto-pollination in tropical orchids (Bulbophyllum) in light of the hypothesis of selfing as an evolutionary dead endAlexander Gamisch, Gunter Alexander Fischer & Hans Peter Comes
Background: The transition from outcrossing to selfing has long been portrayed as an ‘evolutionary dead end’ because, first, reversals are unlikely and, second, selfing lineages suffer from higher rates of extinction owing to a reduced potential for adaptation and the accumulation of deleterious mutations. We tested these two predictions in a clade of Madagascan Bulbophyllum orchids (30 spp.), including eight species where auto-pollinating morphs (i.e., selfers, without a ‘rostellum’) co-exist with their pollinator-dependent conspecifics (i.e.,...
Data from: Spatial patterns of AFLP diversity in Bulbophyllum occultum (Orchidaceae) indicate long-term refugial isolation in Madagascar and long-distance colonization effects in La RéunionUrsula Jaros, Gunter A. Fischer, Thierry Pailler & Hans Peter Comes
Bulbophyllum occultum, an epiphytic orchid mainly distributed in the rainforests of (north)eastern Madagascar and La Réunion, represents an interesting model case for testing the effects of anthropogenic vs historical (e.g., climate induced) habitat isolation and long-distance colonization on the genetic structure of plant species with disjunct distributions in the Madagascan region. To this aim, we surveyed amplified fragment length polymorphisms (AFLPs) across 13 populations in Madagascar and nine in La Réunion (206 individuals in total)....
Data from: Experimental manipulation of floral scent bouquets restructures flower-visitor interactions in the fieldAnne-Amélie C. Larue, Robert A. Raguso & Robert R. Junker
1. A common structural feature of natural communities is the non-random distribution of pairwise interactions between organisms of different trophic levels. For plant–animal interactions, it is predicted that both stochastic processes and functional plant traits that facilitate or prevent interactions are responsible for these patterns. 2. However, unbiased manipulative field experiments that rigorously test the effects of individual traits on community structure are lacking. We address this gap by manipulating floral scent bouquets in the...
Data from: Resources alter the structure and increase stochasticity in bromeliad microfauna communitiesJana S. Petermann, Pavel Kratina, Nicolas A. C. Marino, A. Andrew M. MacDonald, Diane S. Srivastava & Nicholas A. C. Marino
Although stochastic and deterministic processes have been found to jointly shape structure of natural communities, the relative importance of both forces may vary across different environmental conditions and across levels of biological organization. We tested the effects of abiotic environmental conditions, altered trophic interactions and dispersal limitation on the structure of aquatic microfauna communities in Costa Rican tank bromeliads. Our approach combined natural gradients in environmental conditions with experimental manipulations of bottom-up interactions (resources), top-down...
University of Salzburg7
Berlin Brandenburg Institute of Advanced Biodiversity Research2
University of La Réunion1
University of Freiburg1
Queen Mary University of London1
Technical University Munich1
Federal University of Rio de Janeiro1
University of Vienna1
University of British Columbia1
Paracelsus Medical University1