@dietmarstraile
Limnologist, Group Leader at University of Konstanz | food webs, phytoplankton and zooplankton dynamics, climate impacts, Lake Constance, traits, phenology https://www.limnologie.uni-konstanz.de/straile/
Wow. Foraminifera!
ROV pilots paused and carefully zoomed in to collect footage of these single-celled microorganisms, or protists, at 843 m during the #OBVI #LivingBioreactors expedition w/ @schmidtsciences.bsky.social offshore of Argentina. Read the full caption: youtube.com/shorts/Yv_ud...
Finally, OUP has sent a PDF to share. If interested DM me or send me an email
Pond snail with extended eye stalks crawling an Chara meadows
Friendly pond snail from June 2925 #LakeConstance
Screenshot der Tagungshomepage mit Illustrativen Abbildungen und Text, siehe Weblink.
Jahrestagung der Deutschen Gesellschaft für #Limnologie vom 14.-18.09.2026 in Berlin: www.dgl-jahrestagungen.de
Die Tagung findet vom 14.-18.09.2026 gleichzeitig mit der Water Research Horizon Conference statt. Beide werden vom @igb-berlin.de und der @humboldtuni.bsky.social organisiert.
Some #CollectiveBehaviour induced by great crested grebes. Video by AS from Mainau Bridge May 2025 #LakeConstance
Logo for the ZoopTraits projects showing the name of the project in black letters and cartoon pictures of several zooplankton species in the background
New DFG project #Zooptraits funded. We look forward to establish a data base and analyse 4 decades of morphological changes within a zooplankton community #ZooScan #Zooptraits #LakeConstance @uni-konstanz.de
New paper out! Here's a puzzle: phototrophy, the ability to use light for energy, is one of life's great innovations. It evolved early and transformed the biosphere. But it evolved 2x. Why not just once, why not more? Our work suggests the answer is priority effects.
www.nature.com/articles/s44...
#otd
175 years ago Lina Hähnle, pioneer in bird conservation, was born in Sulz am Neckar, Germany. She would lead the NGO later known as @nabu.de for almost 40 years
en.wikipedia.org/wiki/Lina_H%...
juvenile pike above a metal grid on which quagga mussels and green sponges are attached. Also the grid is covered partially with a white powder, probably bryozoans
Juvenile pike above a metal grid with Aufwuchs (Quagga mussels, sponges, and probably bryozoans) from June 2025 #LakeConstance #fish #FreshwaterLife
On the subject of penguins and madness, did you know that 9 King Penguins were released in 1936 in Arctic Norway by the Norwegian Nature Protection Society? At least a couple possibly survived until 1944. So for a brief period Polar Bears and penguins could in theory have met. #biologicalinvasions
image of quagga mussels attached to a crayfish, which stands on an aggregation of quagga mussels
quagga mussels on the move (July 2023) #InvasiveSpecies #LakeConstance
Spiralling global temperatures (1850-2025)
The last 3 years really jump out, rather like 2015-6 did when we first produced this graphic back then. Now, 2015-6 looks rather cool...
More on the spiral: doi.org/10.1175/BAMS...
We've got ISSUES. Literally.
We scraped >100k special issues & over 1 million articles to bring you a PISS-poor paper. We quantify just how many excess papers are published by guest editors abusing special issues to boost their CVs. How bad is it & what can we do?
arxiv.org/abs/2601.07563
A 🧵 1/n
Three pupae of the water veneer Acentria ephemerella arranged to show morphological differences between the sexes and between winged and rudimentary winged females
Very pleased that this paper is now out esajournals.onlinelibrary.wiley.com/doi/10.1002/.... Fascinating #moth with a crazy life history. Led by Oliver Miler in cooperation with Frantisek Marek #Lepidoptera #teammoth @uni-konstanz.de @ecologicalsociety.bsky.social
Black&White painting showing several soldiers standing besides a canal they have build in the ice and aiming to remove another big block of ice
A different kind of #LakeIce story: During the Second World War (winter 1939/1940), Swiss soldiers built a canal in the ice of Lower Lake Constance to prevent German soldiers (officially) and refugees (welcome side effect) from entering Switzerland. (Rosgarten Museum, Konstanz) #LakeConstance
Skating on #LakeIce
Historical painting showing a family crossing ice-covered Lake Constance during the ice-cover period of 1695
Still cold temperatures and near-shore ice cover at Lake Constance. But nothing compared to years with complete ice cover, such as 1963 (the last year with complete ice cover) or 1695, the latter depicted in a painting by X F Ziegler (Rosgartenmuseum, Constance). #LakeConstance #LakeIce
Iceskaters on Lake Constance
Ice skaters in a sheltered bay in Lower Lake Constance #LakeConstance #LakeIce
Historical drawing of a waterflea (Daphnia)
Mikroskopische Gemüths- und Augen-Ergötzung (Microscopic delight for the mind and eyes) (1763) from Martin Frobenius Ledermüller
Input from new study.
Marjohn Yucada Baludo, Dietmar Straile. 2025. Long-term changes in intra- and interspecific trait variability of a small herbivore in a deep perialpine lake. LO
aslopubs.onlinelibrary.wiley.com/doi/10.1002/...
Wassertemperaturen im Bodensee (Lake Constance) #ShowYourStripes @uni-konstanz.de
Mixed species shoal in the littoral zone of Lake Constance
First post on Bluesky! Picture of snorkeling in Lake Constance: Mixed species shoal in the littoral zone. More snorkeling pictures and other content coming soon.
