Dagmar Martina HanzGoethe-Universität Frankfurt am Main · Institut für Physische Geographie
Dagmar Martina Hanz
Master of Science
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Citations since 2017
9 Research Items
I am a PhD student at the Institute for Physical Geography, Goethe-University Frankfurt am Main, Germany. My main research interests are in functional biogeography and ecology with a focus on high-elevation islands. My most recent publication is 'Functional and phylogenetic diversity of bird assemblages are filtered by different biotic factors on tropical mountains' published in Journal of Biogeography.
September 2018 - December 2021
- PhD Student
- My main research interests are in functional biogeography and ecology with a focus on high-elevation islands. I further teach biogeography and statistics to Bachelor and Master students.
March 2017 - August 2018
Current models of island biogeography treat endemic and non-endemic species as if they were functionally equivalent, focussing primarily on species richness. Thus, the functional composition of island biotas in relation to island biogeographic variables remains largely unknown. Using plant trait data (plant height, leaf area, flower length) for 895...
Functional traits can help us to elucidate biogeographical and ecological processes driving assemblage structure. We analysed the functional diversity of plant species of different evolutionary origins across an island archipelago, along environmental gradients and across geological age, to assess functional aspects of island biogeographical theory...
Functional traits offer a rich quantitative framework for developing and testing theories in evolutionary biology, ecology and ecosystem science. However, the potential of functional traits to drive theoretical advances and refine models of global change can only be fully realised when species-level information is complete. Here we present the AVON...
The cover image is based on the Letter AVONET: morphological, ecological and geographical data for all birds by Tobias et al., https://doi.org/10.1111/ele.13898. The sword‐billed hummingbird (Ensifera ensifera) is exquisitely adapted to its trophic niche as an aerial pollinator of flowerings plants (angiosperms) in the high Andes. A new global data...
Both species turnover and intraspecific trait variation can affect plant assemblage dynamics along environmental gradients. Here, we asked how community assemblage patterns in relation to species turnover and intraspecific variation differ between endemic and non‐endemic species. We hypothesized that endemic species show lower intraspecific variati...
Aim: Trait-based approaches are increasingly important in ecology and biogeography, but progress is often hampered by the availability of high-quality quantitative trait data collected in the field. Alternative sources of trait information include scientific floras and taxonomic monographs. Here we test the reliability and usefulness of trait data...
Aim It is not yet clear whether similar mechanisms influence the assembly of ecological communities across different continents. Here, we investigated the functional and phylogenetic diversity of bird assemblages along elevational gradients in two biogeographic regions in order to identify how these are driven by biotic factors, such as food resour...
Front cover: The cover image of an Emerald toucanet (Aulacorhynchus prasinus) in El Bosque' Reserve, San Pedro de Vilcabamba, Ecuador is based on the Original Article Functional and phylogenetic diversity of bird assemblages are filtered by different biotic factors on tropical mountains by Dagmar M. Hanz et al., DOI: 10.1111/jbi.13489. Photo Credit...