Julián A. Velasco's Avatar

Julián A. Velasco

@juvelas.bsky.social

Investigador, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México Evolutionary Macroecology, Climate change, SDM, Urban Biodiversity, Scale More -> https://juvelas.github.io 🇨🇴 in 🇲🇽

1,813 Followers  |  780 Following  |  77 Posts  |  Joined: 25.09.2023  |  2.3898

Latest posts by juvelas.bsky.social on Bluesky

Muchas gracias, voy a revisarlos.

25.07.2025 15:50 — 👍 0    🔁 0    💬 0    📌 0

New from me: How China's clean energy manufacturing boom is helping reduce CO2 emissions overseas. In 2024, China’s exports of solar panels, batteries and electric vehicles are shaved 1% off global emissions outside of China.

22.07.2025 05:05 — 👍 140    🔁 68    💬 2    📌 5
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Long-fuse evolution of carnivoran skeletal phenomes through the Cenozoic Climatic change is hypothesized to promote phenotypic diversification. While neontological analyses are often used to test this hypothesis, extant data only captures the time-averaged signal of surviv...

New preprint with @tsengzj.bsky.social & @hlusko.bsky.social! Here, we developed the most comprehensive phenomic dataset of extant and extinct pan-carnivorans to test how Cenozoic climatic change influenced the evolution of the cranial, appendicular, & axial skeleton

www.biorxiv.org/content/10.1...

18.07.2025 14:52 — 👍 10    🔁 2    💬 0    📌 0
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bluesky Global Ecology Feed Digest #27 Curated digest of the bluesky Global Ecology feed on biodiversity, ecosystems & conservation at large scales. Terrestrial, freswater & marine realms.

🌐 Global Ecology feed Digest #27, July 08-15, 18posts!

✨For the lazy (yes we are!) & friends who don't like social media but might benefit from this feed, here’s a DIGEST crafted with 💚 for you to share

👉 globalecologybs.github.io/feeddigest.g...

DM if you want to receive the link weekly

🌍🦤🦑🪴🍁🧪

15.07.2025 11:17 — 👍 8    🔁 3    💬 0    📌 0

Rebien!

15.07.2025 03:58 — 👍 0    🔁 0    💬 0    📌 0
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Parece que viajaremos a Bogotá (no a probar changua).

14.07.2025 22:17 — 👍 3    🔁 0    💬 1    📌 0
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Regional Climate Drives Spatial Variation in Species Richness in the Most Diverse Family of Neotropical Snakes (Colubroidea: Dipsadidae) Our study investigated the relative importance of the macroecological and macroevolutionary factors driving the patterns of species richness of the hyperdiverse snake family Dipsadidae across the Ame...

In this paper, we identify the main factors that determine the spatial variation in richness of the hyperdiverse snake family Dipsadidae. Current climate outperforms historical factors in this case. #Macroecology #Snakes onlinelibrary.wiley.com/doi/10.1002/...

11.07.2025 16:02 — 👍 5    🔁 2    💬 0    📌 0
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The World's Marine Turtles on the Brink: Unravelling the Impact of Human Stressors and Marine Sanctuary Dynamics Aim As human pressures on global oceans escalate, understanding the cumulative impact of these changes on marine turtles becomes increasingly relevant for conservation. This study investigates the p...

Here we explore how different human stressors are potentially impacting spatial diversity and extinction risk patterns in marine turtles worldwide #Macroecology #MarineTurtles #Oceans onlinelibrary.wiley.com/doi/10.1111/...

06.07.2025 17:52 — 👍 2    🔁 1    💬 0    📌 0
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Último día en el zócalo de Oaxaca, una de las ciudades con más biodiversidad urbana en México: journals.plos.org/plosone/arti...

06.07.2025 00:55 — 👍 8    🔁 0    💬 0    📌 0
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Talking about the potential impacts of a SRM intervention on the Latitudinal Diversity Gradient and Protected Areas in the Americas at #ATBC2025

03.07.2025 00:33 — 👍 1    🔁 0    💬 0    📌 0
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The scaling of seed-dispersal specialization in interaction networks across levels of organization vist.ly/3n7nvt2 #Macroecology #MetaNetwork

24.06.2025 09:25 — 👍 8    🔁 4    💬 0    📌 0
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New day, new paper! 🦣🌍 Led by @mapaslab.bsky.social ab.bsky.social PhD student Sofía Galván and out now in Global Ecology and Biogeography in which we asked:

"Could future palaeontologists detect today’s biodiversity patterns from fossils alone?"

🔗 onlinelibrary.wiley.com/doi/10.1111/...

19.06.2025 13:17 — 👍 59    🔁 31    💬 1    📌 4

Finally out ! We combined interaction network and ecological niche theories under a macroecological lens to show that spp’ network importance (centrality) varies within their climatic niches.

@asn-amnat.bsky.social

doi.org/10.1086/736357

#Macroecology

17.06.2025 17:39 — 👍 19    🔁 4    💬 1    📌 0
Hand-drawn infographic showing two network diagrams. The first diagram is labeled “With Academic Networks” and shows a central circle labeled “You” connected to a few surrounding circles, each linked to a single star. The rest of the stars (representing opportunities) float disconnected in the background. The second diagram is labeled “With Academic + Non-Academic Networks” and shows the same central “You” circle connected to many surrounding circles, each linked to one or more stars, representing a higher number of opportunities. Below the diagrams, a key indicates that each star symbolizes an opportunity.

Hand-drawn infographic showing two network diagrams. The first diagram is labeled “With Academic Networks” and shows a central circle labeled “You” connected to a few surrounding circles, each linked to a single star. The rest of the stars (representing opportunities) float disconnected in the background. The second diagram is labeled “With Academic + Non-Academic Networks” and shows the same central “You” circle connected to many surrounding circles, each linked to one or more stars, representing a higher number of opportunities. Below the diagrams, a key indicates that each star symbolizes an opportunity.

I’m 39. 3 years ago I left academia.

My biggest regret?
Not building a network outside it.

I thought great science would be enough.
It wasn’t.

Visibility builds trust

Visibility opens doors — especially when you leave the lab.

Start showing up. Share your Science.

Start now.

🧪 #SciComm

15.06.2025 22:44 — 👍 51    🔁 6    💬 2    📌 1

Veo a otros muy callados con los penales de ayer

09.06.2025 15:10 — 👍 1    🔁 0    💬 0    📌 0
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Ecological and evolutionary consequences of changing seasonality Climate change and other anthropogenic drivers alter seasonal regimes across freshwater, terrestrial, and marine biomes. Seasonal patterns affect ecological and evolutionary processes at different eco...

If you think the seasons are feeling… different, you may be right.
Our new review in Science (@science.org) shows that Earth’s changing rhythms could have major and underestimated consequences for life on Earth. 🌍🧵
www.science.org/doi/10.1126/...

29.05.2025 22:41 — 👍 209    🔁 104    💬 8    📌 2

Do you want to know how past climate change drove speciation rates in amphibians (and their different clades) across geography? Check our latest paper led by @adriangarcia-r.bsky.social, in collaboration with @fabrovillalobos.bsky.social, @franzessl1.bsky.social
Link: rdcu.be/eogmd

29.05.2025 19:29 — 👍 3    🔁 1    💬 0    📌 0

Wanna know what drives the latitudinal speciation gradient of amphibians? Get your answer in our new OA paper, with my great friends and colleagues @adriangarcia-r.bsky.social (lead) and @juvelas.bsky.social

🇨🇷🇲🇽🇨🇴🇦🇹🇧🇷

29.05.2025 16:21 — 👍 7    🔁 3    💬 0    📌 0
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The latitudinal variation in amphibian speciation rates revisited Communications Biology - A synthesis examining the global patterns of geographic variation in amphibian speciation rates and assessing some of the factors that may underlie them.

🚨🔊Our new paper is out @commsbio.nature.com! 🔥We explore the global variation in speciation rates across >7,000 amphibian species-& the environmental factors that might drive it 🌎⛰️🌡️
Dive into what we found: rdcu.be/eogmd

🙏 @fabrovillalobos.bsky.social @juvelas.bsky.social
@franzessl1.bsky.social

29.05.2025 09:09 — 👍 22    🔁 9    💬 1    📌 2

Massive work by my friend and colleague @gabrielmoulatlet.bsky.social showing that most Amazonian species (vertebrates and plants) are exposed to metal contamination from mining activities

from Gabriel's postdoc w/ @bjenquist.bsky.social

#BiogeographyOfRisk
#Macroecology

27.05.2025 17:29 — 👍 6    🔁 3    💬 0    📌 0

Si quiere saber cómo el deshielo de Groenlandia podría afectar a la biodiversidad, y en especial a los anfibios, puedes leer un capítulo que escribí hace poco en este libro en español (página 83). www.pincc.unam.mx/publicacione...

26.05.2025 15:43 — 👍 2    🔁 1    💬 0    📌 0

El deshielo de Groenlandia puede ocasionar un apagón de la corriente del golfo (AMOC) lo que ocasionaría un cambio climático abrupto al que probablemente no podamos responder.

25.05.2025 19:22 — 👍 1    🔁 0    💬 0    📌 0
Living Data 2025 - Information that together, transforms Join us in Bogotá for Living Data 2025, exploring biodiversity data standards, integration, and community engagement.

Resumen sometido a Living Data 2025. A ver si nos vemos en Bogotá en Octubre.
www.livingdata2025.com/index.html

24.05.2025 05:56 — 👍 0    🔁 0    💬 0    📌 0
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A corta parada antes de volver a Ciudad de México.

21.05.2025 07:25 — 👍 2    🔁 0    💬 0    📌 0

I was the editor of the paper in The Cryosphere that this piece in live science is based on, and I have to say I didn't recognise the study *at all* from this description. Go + read it.
tc.copernicus.org/articles/19/...
And then wonder if we're really communicating the science well? properly.

20.05.2025 07:21 — 👍 34    🔁 15    💬 1    📌 0

🇨🇳 Key developments from China:

📉 China’s CO2 emissions fell due to clean energy, for the first time.
🌾 High temperatures and low rainfall in central China threatened wheat output.
⚡ Xi touted “clean energy” cooperation with Latin America and the Caribbean.

15.05.2025 15:04 — 👍 13    🔁 5    💬 1    📌 1
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The scaling of seed‐dispersal specialization in interaction networks across levels of organization Natural ecosystems are characterized by a specialization pattern where few species are common while many others are rare. In ecological networks involving biotic interactions, specialization operates....

Interested in the macroecology of interactions? Waste no time and check out our new review on the scaling of specialization across network levels, from individuals to species and local to meta-networks

nsojournals.onlinelibrary.wiley.com/doi/10.1002/...

#Macroecology
#BioticInteractions

13.05.2025 21:27 — 👍 12    🔁 3    💬 0    📌 0
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Talking about how terrestrial biodiversity will be affected under a solar modification scenario (SRM) at Global Forum Degrees at Cape Town #DGF2025

15.05.2025 13:54 — 👍 5    🔁 1    💬 1    📌 0

Dos estudiantes con quienes colaboré defendieron sus tesis hoy. Uno de maestría, Mateo Vega, en Ecuador y otro de doctorado, Jhan Salazar, en EEUU, a la misma hora. Habrá que celebrar por ellos acá.

06.05.2025 19:44 — 👍 6    🔁 0    💬 0    📌 0
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Geography and availability of natural habitat determine whether cropland intensification or expansion is more detrimental to biodiversity Nature Ecology & Evolution - Both agricultural expansion and intensification drive biodiversity losses. Here the authors quantify and compare globally the biodiversity impact of land conversion...

Our study on the biodiversity impacts of agriculture in @natureecoevo.bsky.social rdcu.be/ekept Minimizing biodiversity loss requires a balance of expansion and intensification,while preserving unmodified land #Biodiversity #LandUse #ConservationScience @dleclere.bsky.social @tnewbold31.bsky.social

01.05.2025 11:11 — 👍 27    🔁 24    💬 1    📌 1

@juvelas is following 20 prominent accounts