35th European Congress of Arachnology
@35theca2025.bsky.social
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The 35th European Congress of Arachnology will take place in Zadar, Croatia, from 31 August to 5 September 2025. E - mail: [email protected]
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It was an absolute joy sharing this amazing web of brilliant people here in Zadar. Thank you all for coming and making it so special! 🕷️❤️
35theca2025.bsky.social
Today we’re going in deep 🕸️

Symposium on the science beneath the surface: cave arachnid ecology, diversity and evolution.
35theca2025.bsky.social
Spiky or smooth: How should widow spiders construct their egg sacs? By Valeria Arabesky
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Symposium on “How arachnids experience their world: senses, Brain, development and behaviour” started with the lecture “Biological point - light displays scanning by the principal eyes of a jumping spider” by Massimo De Agro.
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Our plenary talk today: Unraveling Sexual Size Dimorphism in Spiders: Current Insights and Emerging Frontiers by Simona Kralj - Fišer
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Today we covered themes related to systematics & phylogenetics, evolutinary biology & genomics, and faunistics & distribution.

From Nemesiidae, Salticidae and Theridiidae to scorpions and pseudoscorpions: our lecturers gave their best and gave us insight into their research.
35theca2025.bsky.social
Are Nemesiidae your thing?
A lecture by Vera Opatova: Phylogenetic relationships and biogeographic origins of the spider family Nemesiidae (Araneae, Mygalomorphae)
35theca2025.bsky.social
Starting strong with our first plenary speaker: Miquel A. Arnedo 🕸️
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Happy to say the 35th ECA in Zadar has officially started!
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Big thanks to the rest of our sponsors, and our supporters!
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Our amazing sponsors are the real MVPs!

@pensoft.net : cutting-edge biodiversity publishing
@peerj.bsky.social : high-quality peer review in biology & health

Thanks for making this congress possible!
35theca2025.bsky.social
Only five days left until the start of the 35th European Congress of Arachnology.
We are very excited to host 175 participants from 41 countries across 5 continents among which 62 are students! 🕷️🕸️🦂@institutrb.bsky.social
35theca2025.bsky.social
Arachnid of the week is Troglochthonius doratodactylus Helversen, 1968
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Want to see how our logo was drawn? Check out this (very) sped-up video showing part of the illustration process!

Have you already guessed the spider genus depicted? 😄
35theca2025.bsky.social
Dear all, the registration and abstract submission deadline is approaching in a few days! Friday June 20th at midnight!!! 🚨 Don't miss the chance to join us in a beautiful Zadar! 🌞https://event.fourwaves.com/eca2025/pages
35theca2025.bsky.social
Arachnid of the week is Euscorpius biokovensis, 2020
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Spider of the week is Philaeus chrysops Thorell, 1869
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Arachnid of the week: Lola insularis Kratochvíl, 1937
35theca2025.bsky.social
For all the students, check out the grants we offer at our website - event.fourwaves.com/eca2025/pages. We offer at least 4 grants covering the congress registration fee and several travel grants. Also, Arachnologische Gesellschaft - arages.de - added a student award opportunity for their members.
35th European Congress of Arachnology
Fourwaves - 35th European Congress of Arachnology
event.fourwaves.com
35theca2025.bsky.social
⚠️Alert! Registrations for ECA2025 are officially open from today! Early bird registration is until May 25th, while registration closes on June 20th. Hurry up to book your place! 🕷️All the details are on our webpage: event.fourwaves.com/eca2025/pages
35th European Congress of Arachnology
Fourwaves - 35th European Congress of Arachnology
event.fourwaves.com