4 Works

Data from: Contagious fear: escape behaviour increases with flock size in European gregarious birds

Federico Morelli, Yanina Benedetti, Mario Diaz, Tomas Grim, Juan Ibáñez-Álamo, Jukka Jokimäki, Marja-Liisa Kaisanlahti-Jokimäki, Kunter Tätte, Gábor Markó, Yiting Jiang, Piotr Tryjanowski & Anders P. Møller
Flight initiation distance (FID), the distance at which individuals take flight when approached by a potential (human) predator, is a tool for understanding predator-prey interactions. Among the factors affecting FID, tests of effects of group size (i.e. number of potential prey) on FID have yielded contrasting results. Group size or flock size could either affect FID negatively (i.e. the dilution effect caused by the presence of many individuals) or positively (i.e. increased vigilance due to...

Data from: Parallel declines in abundance of insects and insectivorous birds in Denmark over 22 years

Anders Pape Møller
Farmers in most western countries have increased use of fertilizer and pesticides with impact on wild animals and plants, including the abundance of insects and their predators. I used 1,375 surveys of insects killed on car windscreens as a measure of insect abundance during 1997–2017 at two transects in Denmark. I cross‐validated this method against three other methods for sampling insect abundance, and I investigated the effects of this measure of insect abundance on the...

Data from: The ecological significance of extremely large flocks of birds

Anders Pape Møller & Karsten Laursen
Population size is generally limited by resource availability during and outside the breeding season. Therefore, maximum size of flocks may provide important information on population regulation and the influence of diet and trophic level on maximal degree of sociality. We hypothesized that (a) flock size should increase with nutrient availability; (b) flock size should decrease with latitude because productivity is higher at lower latitude; (c) aquatic habitats should have larger flocks than terrestrial habitats because...

Data from: Sympatry and interference of divergent Microbotryum pathogen species.

Michael E Hood, Janis Antonovics, Monroe Wolf, Zachariah L Stern, Tatiana Giraud & Jessie L Abbate
The impact of infectious diseases in natural ecosystems is strongly influenced by the degree of pathogen specialization and by the local assemblies of potential host species. This study investigated anther-smut disease, caused by fungi in the genus Microbotryum, among natural populations of plants in the Caryophyllaceae. A broad geographic survey focused on sites of the disease on multiple host species in sympatry. Analysis of molecular identities for the pathogens revealed that sympatric disease was most...

Registration Year

  • 2019

Resource Types

  • Dataset


  • AgroParisTech
  • University of Groningen
  • University of Virginia
  • Aarhus University
  • Eötvös Loránd University
  • Amherst College
  • Spanish National Research Council
  • University of Life Sciences
  • University of Tartu
  • Palacký University, Olomouc