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PD Dr. Dennis Rödder

@droedder.bsky.social
127 followers 486 following 38 posts

Privatdozent (Associate Professor) University of Bonn, Curator at Museum Koenig Bonn, Leibniz Institute for the Analysis of Biodiversity Change @leibnizlib.bsky.social #herpetology #biodiversity #biogeography #conservation #macroecology #ecology

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PD Dr. Dennis Rödder @droedder.bsky.social · 26/09/2026
Just published @leibnizlib.bsky.social ! Our global study of 74 LBF species & 4,760+ records shows how temperature, nutrients, light, salinity & currents shape distributions. Temperature was a key driver (8.5–34.4°C), while symbionts influenced responses to light & nutrients. doi.org/10.1127/njgp...
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PD Dr. Dennis Rödder @droedder.bsky.social · 15/09/2026
Just published @leibnizlib.bsky.social ! New research on Gloydius pitvipers shows they didn't migrate along the Himalayan arc. Instead, they expanded westward across Paleo-Tibet ~14.5 Ma via warm-temperate corridors before colonizing the Western Himalaya! onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Tracing Ancient Migration Routes: Did <fi>Gloydius</fi> Pitvipers Disperse Across Paleo‐Tibet Through Temperate and Subtropical Corridors?
We investigated the evolutionary and biogeographic history of Himalayan and Hindu Kush Gloydius pitvipers by integrating time-calibrated phylogenetic analyses with paleoclimatic reconstructions and s...
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PD Dr. Dennis Rödder @droedder.bsky.social · 09/09/2026
New article featuring integrative conservation work together with @leibnizlib.bsky.social! The Danube Dragon Action Plan was developed following IUCN´s One Plan Approach: Halpern et al. (2026): From plans to ponds: building a future for the Danube Dragon. AmphiBios 3: amphibios.app/articles/fro...
amphibios.app
AmphiBios - Amphibian Survival Alliance
The Amphibian Survival Alliance's digital magazine - connecting the global community working to protect amphibians.
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PD Dr. Dennis Rödder @droedder.bsky.social · 25/08/2026
Successful PhD defense! Congratulations, Dr. Marcos V. S. A. Vieira! The thesis comprises two parts: 1️ An updated global list & review of obligate bromeligenous frogs. 2️ Predicting their future in the face of climate change. Protecting these specialized species starts with understanding them!
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PD Dr. Dennis Rödder @droedder.bsky.social · 18/08/2026
New research @leibnizlib.bsky.social! How will climate change impact northern Vietnam's wildlife? Quasipaa acantophora, a forest-specialist frog, is in urgent need for targeted conservation! Read the full paper: tinyurl.com/mptjvbwk #ConservationBiology #ClimateChange #Herpetology #VietnamWildlife
herpetozoa.pensoft.net
Projected contraction of climatically suitable habitat for the forest-specialist anuran Quasipaa acanthophora under climate change in northern Vietnam
Anthropogenic impacts, including habitat loss and overexploitation, in combination with climate change, have resulted in rapid population declines and even local extirpations in many amphibians. As an...
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PD Dr. Dennis Rödder @droedder.bsky.social · 08/06/2026
Conservation in action: update on the Electric blue gecko from Tanzania. news.mongabay.com/2026/06/how-...
news.mongabay.com
How trade bans and local conservation helped save a dazzling blue gecko
Beauty is a curse — at least for the turquoise dwarf gecko of central Tanzania. Between December 2004 and July 2009, demand for this gecko from collectors in Europe boomed, leading to the capture and ...
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PD Dr. Dennis Rödder @droedder.bsky.social · 12/05/2026
The Danube Dragon Action Plan for the Danube Crested Newt (Triturus dobrogicus) is now published! Developed for DANUBEPARKS by SEH experts, it outlines key conservation actions across the Danube Basin. danubeparks.org/news/the-dan... #conservation #LIBResearch @leibnizlib.bsky.social
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PD Dr. Dennis Rödder @droedder.bsky.social · 31/03/2026
Supervised with Prof. Thomas Ziegler, Sydney Nelson just defended her MSc! She asked what defines the border between two crested newts using occurrence data, SDMs, PCA‑env, and habitat analysis: Habitat is the gatekeeper – key for Danube basin climate‑change planning. Congrats, Sydney! #LIBresearch
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PD Dr. Dennis Rödder @droedder.bsky.social · 24/03/2026
The Hungarian Meadow Viper, one of Europe’s rarest snakes. Thanks to the EU Life+ project and Bálint Halpern, 25 years of work has seen thousands of vipers bred and released into restored habitats! Learn more about this conservation masterclass: rakosivipera.hu #LIBresearch @leibnizlib.bsky.social
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PD Dr. Dennis Rödder @droedder.bsky.social · 07/03/2026
Congratulations! Jointly supervised by me @leibnizlib.bsky.social and Prof. Dr. Thomas Ziegler, Nils Ostrowski successfully defended his BSc thesis #LIBResearch! Analyzing the impact of thousands of parameter combinations, he was able to improve model parametrization in SDMs significantly.
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PD Dr. Dennis Rödder @droedder.bsky.social · 11/02/2026
Third day of the CBD expert meeting on the draft global guidance for sustainable wildlife management! Discussing revisions and streamlining the guideline, supported by #LIBResearch @leibnizlib.bsky.social
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PD Dr. Dennis Rödder @droedder.bsky.social · 09/02/2026
A strong start to the CBD expert meeting on the draft global guidance for sustainable wildlife management! Day 1 featured rich, constructive discussions and valuable inputs from diverse perspectives, supported by #LIBResearch @leibnizlib.bsky.social Looking forward to continuing the review tomorrow.
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LIB @leibnizlib.bsky.social · 09/02/2026
Spannend zu sehen, wie LIB-Forschung auch außerhalb der Fachcommunity aufgegriffen wird — danke an RiffReporter für das Feature! Ein gutes Beispiel dafür, wie Infrastruktur unbeabsichtigt Tierbewegungen beeinflussen kann. #LIBResearch
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PD Dr. Dennis Rödder @droedder.bsky.social · 04/02/2026
@leibnizlib.bsky.social #LIBresearch From Tiny Spines to Sticky Toes: What Cyrtodactylus Geckos Can Tell Us about the Evolution of Stickiness in Lizards Read more: www.anoleannals.org/2026/02/03/f...
anoleannals.org
From Tiny Spines to Sticky Toes: What Cyrtodactylus Geckos Can Tell Us about the Evolution of Stickiness in Lizards
Like anoles, geckos are famous for their adhesive toepads, enabling astonishing climbing abilities. Since adhesive toepads evolved independently in geckos and anoles, these two rather distantly rel…
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Pablo Garcia-Diaz @pablo-ecology.bsky.social · 02/02/2026
Cold-blooded commerce: Characterizing and predicting trade in Australian squamates. Sad to read that John Measey has passed away - John was a leading invasion biologist 🌐🌎🧪 #bioinvasions conbio.onlinelibrary.wiley.com/doi/10.1111/...
conbio.onlinelibrary.wiley.com
Cold‐blooded commerce: Characterizing and predicting trade in Australian squamates
Despite a national ban on native wildlife exports, Australian reptile species continue to appear in international trade. Using boosted regression trees, we found that large body sizes and taxonomic f...
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PD Dr. Dennis Rödder @droedder.bsky.social · 30/01/2026
Snakes on a train? Deadly reptiles may be hopping railcars in India | Science | AAAS www.science.org/content/arti...
science.org
Snakes on a train? Deadly reptiles may be hopping railcars in India
Trains may be transporting cobras and other venomous snakes to new parts of the country
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PD Dr. Dennis Rödder @droedder.bsky.social · 26/01/2026
📄 New paper @leibnizlib.bsky.social: Snakes on Trains! Using 22 years of rescue data + SDMs, we show that railway infrastructure may facilitate accidental dispersal of Ophiophagus kaalinga into unsuitable habitats. doi.org/10.1111/btp.... #Biogeography #ConservationBiology #Herpetology #LIBresearch
doi.org
Snakes on Trains: Railways May Sway Goa's King Cobra Distribution
Distribution of King Cobras (Ophiophagus kaalinga) across Goa, India, shows occurrence in climatically suitable forests and, notably, also along low-suitability railway corridors, suggesting that sna...
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PD Dr. Dennis Rödder @droedder.bsky.social · 16/01/2026
@leibnizlib.bsky.social #LIBresearch: Iranian marsh crocodiles show unique head & neck scale patterns compared to the rest of Crocodylus palustris range. Could this mean Iran hosts a separate conservation unit? Find out more: wildlife-biodiversity.com/index.php/jw...
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LIB @leibnizlib.bsky.social · 13/01/2026
How do mountains shape biodiversity? A new study on the Himalayan toad shows that rising mountains and deep valleys split populations long ago, sending them down separate evolutionary paths. Geography, more than ecology, shaped this hidden diversity. #LIBresearch © Adobe Stock, RealityImages 1/2
Toad resting on dry, sandy ground with blurred natural background.
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TIBS Aarhus 2026 @tibsaarhus2026.bsky.social · 09/01/2026
The news is finally out — #TIBS2028 will be held in #China 🇨🇳 The conference will take place in #Beijing, bringing the global #biogeography community together again after two years. High expectations for an exciting meeting and stimulating discussions.
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PD Dr. Dennis Rödder @droedder.bsky.social · 09/01/2026
Cool poster #TIBS2026 highlighting the importance of digitalization of natural history collections to improve our knowledge on global biodiversity!
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PD Dr. Dennis Rödder @droedder.bsky.social · 09/01/2026
Poster at TIBS 2026 in Aarhus 🇩🇰🥶 Promoting the Master's thesis of Laura Steib, assessing the best modelling strategies for herps in Romania! Thanks to everyone who stopped by for the discussions and feedback, and to the organizers for a great meeting. #TIBS2026 #InternationalBiogeographySociety
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Marten Winter @smartenwinter.bsky.social · 08/01/2026
⏩️"It is not that there is life on the surface of earth. Life is THE surface of earth!"⏪️ #tibs2026 @tibsaarhus2026.bsky.social @biogeography.bsky.social with a.very interesting symposium on co-evolution of landscape & life
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Matt Kerr @mattkerr.bsky.social · 08/01/2026
It was great to meet so many other Early Career Researchers at our #TIBS2026 mixer last night - both catching up with old friends and meeting new ones. To celebrate all the ECR Biogeographers, we have created a starter pack so you can follow all the exciting work being done: go.bsky.app/KvnmdnK
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PD Dr. Dennis Rödder @droedder.bsky.social · 07/01/2026
Gecko Evolution Unveiled: How Adhesion Really Started! Have you ever wondered how geckos developed their incredible ability to walk on walls or even upside down? Our brand-new study sheds new light on this mystery of natur. @leibnizlib.bsky.social Read more: doi.org/10.3762/bjna...
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TIBS Aarhus 2026 @tibsaarhus2026.bsky.social · 05/01/2026
Tomorrow #TIBS2026 is starting! 🌐 We can't wait for the first workshops to begin! 📌To register, please join us at our Welcome Reception: you will be able to follow guided tours to better navigate #TIBS2026 venue 🗺️ get the program booklet 📖 personalize your name badges and meet colleagues !
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PD Dr. Dennis Rödder @droedder.bsky.social · 09/12/2025
@leibnizlib.bsky.social #LIBresearch Exciting news from Himalayan toads providing insights into orogenesis: two genomic lineages split by the Thakkhola/Kali Gandaki since ~3.2 Mya. Climate differs, but topography drives divergence. Read more: authors.elsevier.com/a/1mEge73N%7...
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PD Dr. Dennis Rödder @droedder.bsky.social · 01/12/2025
#LIBresearch @leibnizlib.bsky.social Any thoughts about key innovations? The Geography of Stickiness: What Gecko Feet Reveal about Evolution www.anoleannals.org/2025/12/01/t...
anoleannals.org
The Geography of Stickiness: What Gecko Feet Reveal about Evolution
Like in Anolis lizards, the evolution of adhesive toepads in geckos is often seen as a key innovation, allowing these lizards to exploit vertical environments. Gecko toepads are among the most adva…
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LIB @leibnizlib.bsky.social · 21/11/2025
#LIBresearch: A new global assessment shows that marine megafauna face very different levels of risk from at-sea human pressures: from drifting longlines to extreme temperature events. → doi.org/10.1111/cobi.70147 © Adobe Stock, Shutter2U #marineconservation #megafauna #biodiversity #oceans
The Ocean
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Andrej Spiridonov @andrejpaleo.bsky.social · 13/11/2025
Biological accommodation of climatic variability is a first order factor enabling success of species. An excellent study of temperature niche breadth and geographical ranges of terrestrial plants. doi.org/10.1073/pnas... 🧪 ⚒️ #EvoBio #Paleobio #Macroecology
Global map of species (A) geographic range size, and (B) niche breadth.
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LIB @leibnizlib.bsky.social · 10/11/2025

The LIB urges #COP30 to put biodiversity at the core of climate policy.
Without healthy ecosystems, there are no nature-based solutions.
„Climate and species protection are two sides of the same coin.” 
→ leibniz-lib.de/en/news/0611... #Biodiversity #ClimateAction #ScienceForChange
Our appeal to COP30:
Integrate biodiversity into national climate plans.
Strengthen research and monitoring.
Base decisions on scientific evidence.
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LIB @leibnizlib.bsky.social · 31/10/2025
Vietnam is known for its extraordinary biodiversity, especially its rich bird life. An international team has studied the diversity of birds and the threats they face. Take a look at the study! @droedder.bsky.social was part of the team. #LIBresearch
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PD Dr. Dennis Rödder @droedder.bsky.social · 30/10/2025
@leibnizlib.bsky.social #LIBresearch: Protecting Vietnam’s Birds! New study assesses the threat status and implementation of #IUCN ´s One Plan Approach #conservation. Read the open-access full text here: doi.org/10.3897/natu...
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PD Dr. Dennis Rödder @droedder.bsky.social · 28/10/2025
#LIBresearch: Have you ever wondered how geckos stick and why some species lack adhesive toepads? 🤔 Our new paper in the Journal of Biogeography (doi.org/10.1111/jbi....) provides groundbreaking insights into the evolution and ecological significance of adhesive toepads. @leibnizlib.bsky.social
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Museo Nacional de Ciencias Naturales @mncn-csic.bsky.social · 10/09/2025
#seminarioMNCN 'Machine Learning in Biology: From Image Analysis to Molecular Sequence Analysis' Por Christoph Mayer (@leibnizlib.bsky.social) 📅 12 de septiembre, 12h Presencial y online 👉 www.youtube.com/live/mKGeOL8...
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The International Biogeography Society @biogeography.bsky.social · 29/08/2025
If you are an early career scientist from the Global South, consider applying for our Maria Sibylla Merian Frontiers of Biogeography Award! This new award will support travel to Aarhus and registration fees for two early-career individuals. Learn more here: www.biogeography.org/recognition-...
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The International Biogeography Society @biogeography.bsky.social · 19/08/2025
Care to learn about the latest biogeography research? Come join us in the beautiful city of Aarhus, Denmark in January 2026 for our 12th biannual conference! Abstract submission is open until September 1st. See more details here 👇 conferences.au.dk/tibs-aarhus-...
conferences.au.dk
The International Biogeography Society Conference Jan 7-9, 2026 Aarhus
The International Biogeography Society and Aarhus University are excited to welcome you to the 12th Biannual Conference in Aarhus, the city of Smiles.
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PD Dr. Dennis Rödder @droedder.bsky.social · 20/08/2025
We are happy to invite you to watch Daniel Grundmann's doctoral examination on August 20th at 9 a.m. BRL / 2 p.m MEZ! 🌡 To access the examination, please request the link via PM. @leibnizlib.bsky.social #herpetology #biodiversity #biogeography #macroecology #ecology
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PD Dr. Dennis Rödder @droedder.bsky.social · 05/08/2025
New study by @leibnizlib.bsky.social! Conservation of a megadiverse group of geckos in Indochina! Read more at onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Assessment of the Threat Status of Bent‐Toed Geckos (Cyrtodactylus) in Indochina: Implementation of the One Plan Approach
This study investigates the diversity, conservation status, distribution, and discovery rate of 84 Cyrtodactylus species in Indochina. Despite rising discovery rates, many species are unassessed, wit...
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PD Dr. Dennis Rödder @droedder.bsky.social · 30/07/2025
We just published an update on the diversity, biogeography, and one plan approach conservation of the amphibians and reptiles of Ethiopia! Thanks for the fruitful collaboration to all colleagues from @leibnizlib.bsky.social and Cologne Zoo! Read more: onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Amphibians and Reptiles of Ethiopia—Biogeography, Conservation Priority Areas, and Potentials for “One Plan Approach” Conservation Measures
In this study, we analyze the conservation status of Ethiopia's amphibian and reptile diversity in terms of coverage with protected areas and global representation in conservation breeding facilities....
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LIB @leibnizlib.bsky.social · 24/07/2025
🧬 #NewStudy on #Limacodidae (slug caterpillars): Broad phylogeny using DNA + morphology reveals 4 major lineages incl. 2 new subfamilies. Tracks evolution of larval defence traits like venomous spines. Largest study on this group to date. 🤓 🔗 doi.org/10.1093/isd/... #Lepidoptera #EvoDevo #Phylogeny
doi.org
Phylogeny and reclassification of Limacodidae worldwide, with emphasis on the ontogeny of larval defenses (Lepidoptera: Zygaenoidea)
Abstract. Limacodidae (Zygaenoidea), a mostly pantropical family of 1,800+ species, is known for sluglike caterpillars with suckers below rather than typic
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LIB @leibnizlib.bsky.social · 17/07/2025
Zu heiß? 😰 Auch vielen Tieren wird es zu warm, sogar im #Meer. Wie die #Klimakrise das Verhalten der bedrohten #Engelhaie verändert und ihre Fortpflanzung stört, hat ein internationales Team mit #LIB -Beteiligung gezeigt. @evameyers.bsky.social @droedder.bsky.social leibniz-lib.de/de/news/1707...
Engelshai am Meeresboden, ein Taucher nähert sich. Copyright: Nuno Vasco Rodriguez
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PD Dr. Dennis Rödder @droedder.bsky.social · 17/07/2025
Warming seas scare away female angel sharks, with potentially dramatic consequences! Anthropogenic climate change not only has a serious impact on terrestrial systems, but also influences biotic communities, from coral mortality to demographic changes @leibnizlib.bsky.social doi.org/10.1111/gcb....
doi.org
Rapid Ocean Warming Drives Sexually Divergent Habitat Use in a Threatened Predatory Marine Ectotherm
How ectothermic, mobile marine predators are responding to climate change is uncertain due to lack of species-specific data, which can mask the true impact of this threat. We investigate the impact o...
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PD Dr. Dennis Rödder @droedder.bsky.social · 17/07/2025
Erwärmte Meere vergraulen weibliche Engelhaie – mit potenziell dramatischen Folgen www.idw-online.de/-DQ40BA
idw-online.de
Erwärmte Meere vergraulen weibliche Engelhaie – mit potenziell dramatischen Folgen
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PD Dr. Dennis Rödder @droedder.bsky.social · 07/07/2025
Just published in collaboration with colleagues from @leibnizlib.bsky.social ! How does climate change affect a range-restricted, high-altitude mountain endemic species in Ethiopia? Congratulations Abadi, for this nice contribution! link.springer.com/article/10.1...
link.springer.com
Evaluating the impact of climate change on mountaintop endemic bird species in the Ethiopian highlands: insights from moorland francolin (Scleroptila psilolaema) - Ornithology Research
Anthropogenic climate change poses a profound threat to global biodiversity, particularly to the unique flora and fauna of highland ecosystems within biodiversity hotspots. We used ensemble species di...
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PD Dr. Dennis Rödder @droedder.bsky.social · 01/07/2025
Just published ‪@leibnizlib.bsky.social‬ ! Slipped through the narrow door: Effects of climate change on the distribution and conservation of a vulnerable tiger gecko, Goniurosaurus luii, from China and Vietnam natureconservation.pensoft.net/articles.php... ‪
natureconservation.pensoft.net
Slipped through the narrow door: Effects of climate change on the distribution and conservation of a vulnerable tiger gecko, Goniurosaurus luii, from China and Vietnam
Under human impacts, the global effects of climate change are exacerbating the biodiversity crisis with an anticipated high level of extinction risk for many species. As a range-restricted tropical sp...
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Leibniz-Gemeinschaft @leibniz-gemeinschaft.de · 23/05/2025
Wir sind mit über 20 #Exzellenzclustern beteiligt und gratulieren allen geförderten Instituten und Universitäten! 🥳 Alle Exzellenzcluster mit Beteiligung von Leibniz-Instituten findet ihr hier: www.leibniz-gemeinschaft.de/ueber-uns/ne...
leibniz-gemeinschaft.de
Exzellenzcluster: Große Leibniz-Beteiligung
Die Entscheidung über die künftigen Exzellenzcluster ist gefallen – Leibniz-Institute sind an mehr als 20 von 70 Clustern beteiligt.
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Leibniz-Forschungsnetzwerk Biodiversität @leibnizbiodiv.bsky.social · 22/05/2025
🌍 Today is the International Day for Biological Diversity. The ‘10 Must Knows 2024’ show: Diversity is systemically relevant. 🌿 Must-Know 10: Without biodiversity, there is no food, no health, no stable climate. It is the basis of our existence. 🐝🌱 🔗 rebrand.ly/p9r4usk #BiodiversityDay
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PD Dr. Dennis Rödder @droedder.bsky.social · 15/05/2025
@leibnizlib.bsky.social In close cooperation with #kölnerzoo and #Allwetterzoo Münster, our former student Runa Schwabe assessed the threat status and worldwide representation of #Agamid lizards in zoological collections and their potential for ex-situ conservation. Read more: tinyurl.com/3vyyrfch
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PD Dr. Dennis Rödder @droedder.bsky.social · 11/05/2025
@leibnizlib.bsky.social Vietnam is estimated to harbor more than 1000 freshwater fishes currently understudied. This study aims to evaluate its species richness and conservation concerns following IUCN's One Plan Approach. Find out more here: t1p.de/zkjoh
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