I am going to feel this today…
https://maps.suunto.com/move/giuliano100351/68ac49855de9276339bf09b8
| Website | https://giulianocolosimo.github.io/EvolvoErgoSum/ |
| Pronouns | He/Him |
Giuliano Colosimo
@cinghio
- 6 Followers
- 65 Following
- 41 Posts
PhD in Evolutionary and Conservation Genetics
My morning ride to Fondi and Mt. St. Biagio. Slowly ramping up the Km, the elevation gain and the pace…
Did a few more KMs today. The countryside here is so freaking beautiful, but also pretty darn polluted!!!
https://maps.suunto.com/move/giuliano100351/68a1a78a7f6bf57f71b84699
https://maps.suunto.com/move/giuliano100351/68a1a78a7f6bf57f71b84699
Back on my MTB after a while. Felt great! A little pain today, but totally worth it!
https://maps.suunto.com/move/giuliano100351/689f6835e87d674005128919
New manuscript out!
M. D. Luca et al., "Design of a LoRa-based Multi-Sensor Device for the Internet of Animals," in IEEE Internet of Things Journal, doi: 10.1109/JIOT.2025.3574494.
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Movement Ecology using R
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Full details:
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New paper titled "A genomic perspective on the origins, evolution and adaptation of Galapagos iguanas" is currently under revision, but it is also available as pre-print here: https://www.biorxiv.org/content/10.1101/2025.04.13.648612v1
#evolution #iguanas #galapagos #biology #NatureEcologyEvolution
A genomic perspective on the origins, evolution and adaptation of Galapagos iguanas
Island systems provide unique opportunities to explore the genomic basis of species diversification and novel trait evolution driven by adaptation to environmental challenges and exploitation of new ecological niches. Here we generate the first genomic sequences for the four Galapagos iguana species to show that they evolved in situ into the marine Amblyrhynchus and land Conolophus sister lineages on now submerged islands, following a single colonisation event approximately 13 million years ago, with evidence for recent inbreeding coincident with the timing of human settlement. Selection scans identified genes linked to traits facilitating adaption to the Galapagos environment, including specialised pigmentation phenotypes, as well as DNA damage and UV irradiation inflammation responses. These may contribute to adaptive enhanced cancer resistance, in relation to elevated UV exposure at equatorial latitudes. In the marine iguana, genes under positive selection are associated with their transition to underwater foraging, as well as their unique ability to repeatedly shrink and grow in body size. Our study provides insights into the origins and diversification of the iguanas and the molecular basis of adaptation to life in the Galapagos, facilitating future conservation genomic management of threatened iguanid populations. ### Competing Interest Statement The authors have declared no competing interest.
Great! 1st citation of my 'Hand grab or noose pole? Evaluating the least stressful practice for capture of endangered Turks and Caicos Rock Iguanas Cyclura carinata' article published in #OpenAccess journal @PeerJLife https://peerj.com/articles/17171
Hand grab or noose pole? Evaluating the least stressful practice for capture of endangered Turks and Caicos Rock Iguanas Cyclura carinata
As the analysis of blood metabolites has become more readily accessible thanks to the use of point-of-care analyzers, it is now possible to evaluate stress level of wild animals directly in the field. Lactate is receiving much attention as a good stress level proxy in individuals subjected to capture, manual restraint, and data sampling in the wild, and appropriate protocols to maintain lactate values low should be preferred. In this study we compare how two different capture methodologies, hand grab vs. noose pole, affect the variation of blood lactate values in Cyclura carinata iguanas when captured for sampling. We used blood lactate concentration, measured immediately upon- and 15 min after-capture, as a proxy for stress level. While the primary goal of this work is to determine the least stressful capture methodology to be favored when sampling this and other wild iguanas, we also evaluated additional baseline physiological parameters relevant to the health and disease monitoring for this species. Our results show that while initial lactate values level-out in sampled individuals after 15 min in captivity, regardless of the capture methodology, rock iguanas captured by noose pole showed significantly higher lactate concentration and increased heartbeat rate immediately after capture. While the overall health evaluation determined that all analyzed individuals were in good health, based on our results we recommend that, when possible, hand capture should be preferred over noose pole when sampling wild individuals.
New manuscript out!
We highlight the smuggling of Galápagos iguanas in Africa, Asia, Europe, and the Pacific region.🦎🦎🦎🦎🦎🦎
Here is the link to "Trafficking of Galápagos iguanas as an example of a global problem: CITES permits, laundering and the role of transit countries in Europe and Africa": https://www.sciencedirect.com/science/article/pii/S0006320725001417