Johanna Asch

@johannaasch.bsky.social

Passionate about forests 🌲 | PhD candidate | BETA-FOR | Studying the effects of forest management on decomposition and nutrient cycling 🍂🪲

📃🕸🕷 Check out this recent publication by our PhD candidate Jean-Léonard Stör and @juliarothacher.bsky.social from @cofeuniwue.bsky.social 🕷🕸! @betafor.bsky.social

Julius-Maximilians-Universität Würzburg@uni-wuerzburg.de · 4mo ago

Spiders prefer dense forests 🕷️🌲 A University of Würzburg study @animalecology.bsky.social shows: more forest gaps don’t mean more diversity—spider diversity actually drops. The reason: the missing canopy as key habitat. #forest #biodiversity 📷: Louis Puille ➡️ go.uniwue.de/animal-ecology

Macro photograph of a white goldenrod crab spider (Misumena vatia) on an oxeye daisy. The spider sits with its front legs outstretched, holding a dark, wasp-like insect that it has captured and gripped with its mouthparts. Its rounded, pale yellowish-white abdomen provides excellent camouflage among the white petals. The yellow center of the daisy is softly blurred in the background. The image illustrates the hunting strategy of this ambush predator: remaining motionless on flowers until a pollinating insect comes within reach, then seizing it in a lightning-fast attack.

5 years ago I joined a field work campaign in the stunningly beautiful Swedish primary forests, still one of my all-time favourite fieldwork experiences!🌲🌿 Now there is a new study out lead by Didac Pascual and Anders Ahlström from Lund University www.science.org/doi/10.1126/...

Higher carbon storage in primary than secondary boreal forests in Sweden

Boreal forests provide considerable global land carbon storage and uptake, but they are being rapidly transformed to managed secondary forests, with poorly quantified implications for ecosystem carbon...

science.org

New paper out in @jappliedecology.bsky.social! We investigated how forest structural heterogeneity and climate influence temperate dung beetles in production forests. 🪲

Julius-Maximilians-Universität Würzburg@uni-wuerzburg.de · 8mo ago

Canopy openings can harm the biodiversity of dung #beetles 🪲: Scientists of the University of Würzburg examined 234 areas in eleven #forests across Germany. Rising temperatures exacerbate the problem. ➡️ www.uni-wuerzburg.de/en/news-and-... 📸 Johanna Asch

New paper out! 📃 Enhanced structural complexity in forests has limited effects on #soil abiotic properties, but #microbial activity and biomass respond site-specifically. Soil moisture and understory growth link to microbial functions. 💧🧫🌳🍁 Read it here: www.sciencedirect.com/science/arti...

Inconsistent short-term effects of enhanced structural complexity on soil microbial properties across German forests

Structural and biotic homogenization can result from forestry practices lacking promotion of canopy gaps and deadwood. This can lead to biodiversity l…

sciencedirect.com

Photo gallery from our Peru project on biodiversity along an elevational gradient on the cover of the Bulletin! 🐒

ESA Journals@esajournals.bsky.social · last yr.

Take a taste of the Bulletin's July issue! Thanks to @kimholzmann.bsky.social‬ for the cover monkey, from her Photo Gallery submission documenting a study of mammal diversity in Peruvian old-growth forest Find the Photo Gallery, & lots more, here: esajournals.onlinelibrary.wiley.com/toc/23276096...

Cover of the July 2025 issue of the ESA Bulletin