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The official homepage of FWF Project P
23687-B17 "The Drusinae (Insecta:
Trichoptera) in a world of global change" |
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The Project Team
(from left): Wolfram
Graf (University
of Natural Resources & Life Sciences, Vienna, Austria; Collecting Teams
Alps & SW Europe, Asia Minor; sampling coordination); Simon Vitecek (University of Vienna, Austria; PhD); Jesus Martinez (University of
Santiago de Compostela, Spain; guest); Mladen Kučinić (University of
Zagreb, Croatia; Collecting Team Northern Balkans); Lujza
Ujvárosy (Babes-Bolyai University, Cluj,
Romania; Collecting Team Southern Balkans); Johann Waringer (University of
Vienna, Austria; PI); Ana Previšić (University of
Zagreb, Croatia; Collecting Team Northern Balkans); Steffen Pauls (Biodiversity & Climate Research Centre,
Frankfurt / Main, Germany; phylogenetics, global
warming effects); Miklós
Bálint (Biodiversity
& Climate Research Centre, Frankfurt / Main, Germany; Collecting Team
Southern Balkans). (foreground): pulis MIRO
and JANKA
(project mascots). |
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Mission statement |
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There
is clear evidence that biological assessment systems greatly benefit from
species level identification, because species, as the basic biological units,
yield the highest information possible. Unfortunately, contemporary keys of
aquatic macroinvertebrates are still incomplete due
to a lack of taxonomical data. In the present project, we will focus on
subfamily Drusinae because 54 species of this
primary indicator group are still unknown in the larval stage. In addition,
missing autecological data of the unknown larvae
excludes them from standard assessment procedures and ecological data bases.
The first aim of this project is, therefore, to obtain specimens and ecometrics, to conduct species affiliation of unknown
larvae with adults using sequence analyses and to construct keys including
all species. To track the specimens needed, four collecting teams will be
busy from the Iberian peninsula to the Caucasus and the southern Balkan. The
results will enable ecologists to fully utilize the sensitivity of Drusinae species in applied running water ecology and
conservation biology and to fill the gaps in ecological databases.
Three quarters of the Drusinae are endemics limited
to one or only few mountain ranges, making the group an ideal model for
studying evolutionary processes. In the second work package we explore
the phylogeny in the Drusinae in a combined
morphological and molecular context. We will test if key innovations (e.g.,
advanced feeding types) together with Pliocene-Pleistocene climate change,
promoted diversification and speciation. To test this hypothesis we need to
increase the number of taxa included in our already established phylogeny of
28 species. We also wish to include morphological data sets of larvae and
adults as well as two further molecular markers (up to a total of five) to
obtain greater resolution in our tree to allow an unambiguous reconstruction
of Drusinae phylogeny. Most Drusinae species are strictly confined
to higher altitudes in the mountains with their ranges consisting of
fragmented montane sky-island populations. They are
therefore very exposed to global warming effects, which have their most
severe implications in Alpine ecosystems. For these species high altitudes
may act as summit traps as vertical migrations to colder climate zones in
response to global warming will not be possible for such species, possibly
leading to their extinction. Developmental temperature data and species
distribution modelling included in our work package 3 will provide
valuable basic information for early warning systems on climate-induced
threats to high mountain biodiversity under two different future climate
scenarios. |
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