Manuel Hernández Fernández
@hdezfdez.bsky.social
Paleobiólogo, profesor en la UCM e investigador en el CSIC; interesado en los cambios climáticos y la evolución de las faunas de vertebrados cenozoicos
Pinned
Isotopic studies in South American mammals: Thirty years of paleoecological discoveries mdpi.com/3421934
by @dasanz.bsky.social et al.
by @dasanz.bsky.social et al.
Body size regulates niche overlap asymmetry in the subtropical Andes rain shadow: Isotopic paleoecology of Oligocene South American ungulates
onlinelibrary.wiley.com/doi/10.1111/...
by @dasanz.bsky.social et al.
onlinelibrary.wiley.com/doi/10.1111/...
by @dasanz.bsky.social et al.
Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in ....
onlinelibrary.wiley.com
November 12, 2025 at 6:07 AM
Body size regulates niche overlap asymmetry in the subtropical Andes rain shadow: Isotopic paleoecology of Oligocene South American ungulates
onlinelibrary.wiley.com/doi/10.1111/...
by @dasanz.bsky.social et al.
onlinelibrary.wiley.com/doi/10.1111/...
by @dasanz.bsky.social et al.
Late Pleistocene temperature patterns in the Western Palearctic: insights from rodent associations compared with general circulation models
cp.copernicus.org/articles/21/...
cp.copernicus.org/articles/21/...
Late Pleistocene temperature patterns in the Western Palearctic: insights from rodent associations compared with general circulation models
Abstract. Since rodent fossils are preserved in many low- and high-latitude archaeological and paleontological sites from a wide variety of environments, their associations are a commonly useful proxy...
cp.copernicus.org
October 24, 2025 at 7:51 AM
Late Pleistocene temperature patterns in the Western Palearctic: insights from rodent associations compared with general circulation models
cp.copernicus.org/articles/21/...
cp.copernicus.org/articles/21/...
Reposted by Manuel Hernández Fernández
Thrilled that our paper “The division of food space among mammalian species on biomes” has been selected as October’s Editor’s Choice in @ecography.bsky.social ! 📰✨👇 sl1nk.com/AG7BC
Huge thanks to Rafa Barrientos for the pic (I mean, Rafa is the photographer, not the stunning monkey 🐒)
Huge thanks to Rafa Barrientos for the pic (I mean, Rafa is the photographer, not the stunning monkey 🐒)
October 3, 2025 at 7:20 AM
Thrilled that our paper “The division of food space among mammalian species on biomes” has been selected as October’s Editor’s Choice in @ecography.bsky.social ! 📰✨👇 sl1nk.com/AG7BC
Huge thanks to Rafa Barrientos for the pic (I mean, Rafa is the photographer, not the stunning monkey 🐒)
Huge thanks to Rafa Barrientos for the pic (I mean, Rafa is the photographer, not the stunning monkey 🐒)
Diez datos que sitúan a Madrid como la comunidad que peor trata a su universidad pública www.eldiario.es/1_c07aac?utm...
Diez datos que sitúan a Madrid como la comunidad que peor trata a su universidad pública
La región que preside Isabel Díaz Ayuso es la que más estudiantes y personal está trasvasando de la pública a la privada, la que peores salarios tiene en relación al coste de vida, la que menos fondos...
www.eldiario.es
September 22, 2025 at 7:15 AM
Diez datos que sitúan a Madrid como la comunidad que peor trata a su universidad pública www.eldiario.es/1_c07aac?utm...
Reposted by Manuel Hernández Fernández
Desprendimiento de rocas ocurrido ayer en el Cirque du Fer à Cheval, Francia. Se derrumbaron 12.000 metros cúbicos de rocas
September 8, 2025 at 9:17 AM
Desprendimiento de rocas ocurrido ayer en el Cirque du Fer à Cheval, Francia. Se derrumbaron 12.000 metros cúbicos de rocas
Reposted by Manuel Hernández Fernández
En cuestión de semanas, los primeros brotes verdes emergen entre las cenizas, transformando el paisaje devastado en un mosaico inesperado de vida.
¿Puede la vegetación recuperarse por sí sola después de un gran incendio?
Mientras que algunos incendios abren oportunidades para que la vida renazca con fuerza, los de alta intensidad pueden iniciar una degradación irreversible si no actuamos con inteligencia.
theconversation.com
August 22, 2025 at 5:50 PM
En cuestión de semanas, los primeros brotes verdes emergen entre las cenizas, transformando el paisaje devastado en un mosaico inesperado de vida.
Reposted by Manuel Hernández Fernández
New paper out!
This review looks at 30 years of stable isotope studies on South American fossil mammals, exploring research trends, paleoecological insights, and future directions.
@mdpiopenaccess.bsky.social @igeociencias.bsky.social @hdezfdez.bsky.social
🔗 www.mdpi.com/2076-3263/15...
This review looks at 30 years of stable isotope studies on South American fossil mammals, exploring research trends, paleoecological insights, and future directions.
@mdpiopenaccess.bsky.social @igeociencias.bsky.social @hdezfdez.bsky.social
🔗 www.mdpi.com/2076-3263/15...
July 30, 2025 at 10:06 AM
New paper out!
This review looks at 30 years of stable isotope studies on South American fossil mammals, exploring research trends, paleoecological insights, and future directions.
@mdpiopenaccess.bsky.social @igeociencias.bsky.social @hdezfdez.bsky.social
🔗 www.mdpi.com/2076-3263/15...
This review looks at 30 years of stable isotope studies on South American fossil mammals, exploring research trends, paleoecological insights, and future directions.
@mdpiopenaccess.bsky.social @igeociencias.bsky.social @hdezfdez.bsky.social
🔗 www.mdpi.com/2076-3263/15...
Reposted by Manuel Hernández Fernández
Stable isotopes (δ¹³C, δ¹⁸O, δ¹⁵N) have revolutionized paleoecology studies. But how have these tools been applied in South America, one of the world’s richest fossil archives? ⚛️🌎
This is the first bibliometric and conceptual review to answer that question.
This is the first bibliometric and conceptual review to answer that question.
July 30, 2025 at 10:06 AM
Stable isotopes (δ¹³C, δ¹⁸O, δ¹⁵N) have revolutionized paleoecology studies. But how have these tools been applied in South America, one of the world’s richest fossil archives? ⚛️🌎
This is the first bibliometric and conceptual review to answer that question.
This is the first bibliometric and conceptual review to answer that question.
Reposted by Manuel Hernández Fernández
🖥️We analyzed 80 studies (1994–2024) to explore:
•Temporal and taxonomic biases
•Research trends, gaps and emerging topics
•Collaboration networks and gender equity
•Temporal and taxonomic biases
•Research trends, gaps and emerging topics
•Collaboration networks and gender equity
July 30, 2025 at 10:06 AM
🖥️We analyzed 80 studies (1994–2024) to explore:
•Temporal and taxonomic biases
•Research trends, gaps and emerging topics
•Collaboration networks and gender equity
•Temporal and taxonomic biases
•Research trends, gaps and emerging topics
•Collaboration networks and gender equity
Reposted by Manuel Hernández Fernández
📈 The field has grown exponentially, especially in the last 5 years. But studies are heavily skewed toward:
✔ the Quaternary (77% of the papers)
✔ certain taxa (e.g., Equidae, Camelidae, Toxodontidae)
✔ the Quaternary (77% of the papers)
✔ certain taxa (e.g., Equidae, Camelidae, Toxodontidae)
July 30, 2025 at 10:06 AM
📈 The field has grown exponentially, especially in the last 5 years. But studies are heavily skewed toward:
✔ the Quaternary (77% of the papers)
✔ certain taxa (e.g., Equidae, Camelidae, Toxodontidae)
✔ the Quaternary (77% of the papers)
✔ certain taxa (e.g., Equidae, Camelidae, Toxodontidae)
Reposted by Manuel Hernández Fernández
🌎 Geographically, most works are concentrated in Argentina and Brazil. Countries like Paraguay and Venezuela are underrepresented.
We need more balanced regional sampling to understand continent-wide patterns.
We need more balanced regional sampling to understand continent-wide patterns.
July 30, 2025 at 10:06 AM
🌎 Geographically, most works are concentrated in Argentina and Brazil. Countries like Paraguay and Venezuela are underrepresented.
We need more balanced regional sampling to understand continent-wide patterns.
We need more balanced regional sampling to understand continent-wide patterns.
Reposted by Manuel Hernández Fernández
The most frequent keywords (“Isotope”, “Pleistocene”, “Diet”, “Paleoecology”, and “Carbon”) highlight a primary focus on evaluating the paleodiets and ecological roles of extinct taxa, and recent years show growing interest in Ecological niche modeling.
July 30, 2025 at 10:06 AM
The most frequent keywords (“Isotope”, “Pleistocene”, “Diet”, “Paleoecology”, and “Carbon”) highlight a primary focus on evaluating the paleodiets and ecological roles of extinct taxa, and recent years show growing interest in Ecological niche modeling.
Reposted by Manuel Hernández Fernández
Network analysis using clustering methods provided valuable insights into collaborative structure trends. Co-authorship analysis revealed a highly collaborative landscape, with 90% of identified clusters involving international partnerships.
July 30, 2025 at 10:06 AM
Network analysis using clustering methods provided valuable insights into collaborative structure trends. Co-authorship analysis revealed a highly collaborative landscape, with 90% of identified clusters involving international partnerships.
Reposted by Manuel Hernández Fernández
🌎 South American researchers are increasingly assuming leadership roles in the production of isotopic research over the last decade.
July 30, 2025 at 10:06 AM
🌎 South American researchers are increasingly assuming leadership roles in the production of isotopic research over the last decade.
Reposted by Manuel Hernández Fernández
Gender analysis revealed significant imbalances in female participation. Promoting equitable representation in scientific authorship is crucial not only for social justice but also to enrich research by incorporating diverse perspectives.
July 30, 2025 at 10:06 AM
Gender analysis revealed significant imbalances in female participation. Promoting equitable representation in scientific authorship is crucial not only for social justice but also to enrich research by incorporating diverse perspectives.
Reposted by Manuel Hernández Fernández
This systematic literature analysis offers a comprehensive understanding of the field’s progress over the past three decades.
🧭We hope this review becomes a roadmap for future work.
www.mdpi.com/2076-3263/15...
🧭We hope this review becomes a roadmap for future work.
www.mdpi.com/2076-3263/15...
www.mdpi.com
July 30, 2025 at 10:06 AM
This systematic literature analysis offers a comprehensive understanding of the field’s progress over the past three decades.
🧭We hope this review becomes a roadmap for future work.
www.mdpi.com/2076-3263/15...
🧭We hope this review becomes a roadmap for future work.
www.mdpi.com/2076-3263/15...
Isotopic studies in South American mammals: Thirty years of paleoecological discoveries mdpi.com/3421934
by @dasanz.bsky.social et al.
by @dasanz.bsky.social et al.
July 28, 2025 at 2:50 PM
Isotopic studies in South American mammals: Thirty years of paleoecological discoveries mdpi.com/3421934
by @dasanz.bsky.social et al.
by @dasanz.bsky.social et al.
Reposted by Manuel Hernández Fernández
🌍 What structures life on Earth?
In the 1980s, Brown and Maurer laid the foundations of macroecology with a simple, powerful idea:
space, time… and FOOD.
Where food is, how it's distributed, and who gets access to it.
In the 1980s, Brown and Maurer laid the foundations of macroecology with a simple, powerful idea:
space, time… and FOOD.
Where food is, how it's distributed, and who gets access to it.
July 10, 2025 at 11:56 AM
🌍 What structures life on Earth?
In the 1980s, Brown and Maurer laid the foundations of macroecology with a simple, powerful idea:
space, time… and FOOD.
Where food is, how it's distributed, and who gets access to it.
In the 1980s, Brown and Maurer laid the foundations of macroecology with a simple, powerful idea:
space, time… and FOOD.
Where food is, how it's distributed, and who gets access to it.
The division of food space among mammalian species on biomes
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
by @paleobicha.bsky.social et al.
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
by @paleobicha.bsky.social et al.
The division of food space among mammalian species on biomes
Understanding how species' ecological partitioning functions across biomes is fundamental to macroecology and conservation biology. Here, we examine the global distribution of dietary strategies in t...
nsojournals.onlinelibrary.wiley.com
July 10, 2025 at 8:07 AM
The division of food space among mammalian species on biomes
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
by @paleobicha.bsky.social et al.
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
by @paleobicha.bsky.social et al.
Reposted by Manuel Hernández Fernández
🚨 I'm looking for #Postdoc opportunities starting this September! 🧑🔬🔍
I'm a highly motivated researcher with experience in R, network analysis, and multivariate statistics. My focus is on the evolution of ecosystems and biodiversity over deep time.
I'm a highly motivated researcher with experience in R, network analysis, and multivariate statistics. My focus is on the evolution of ecosystems and biodiversity over deep time.
June 13, 2025 at 8:24 AM
🚨 I'm looking for #Postdoc opportunities starting this September! 🧑🔬🔍
I'm a highly motivated researcher with experience in R, network analysis, and multivariate statistics. My focus is on the evolution of ecosystems and biodiversity over deep time.
I'm a highly motivated researcher with experience in R, network analysis, and multivariate statistics. My focus is on the evolution of ecosystems and biodiversity over deep time.
Reposted by Manuel Hernández Fernández
New paper out!
We explore the geological evolution of Des-Cubierta Cave (Madrid), revealing 300,000 years of karst development, sedimentation, and Neanderthal occupations:
🔗 doi.org/10.1002/jqs....
We explore the geological evolution of Des-Cubierta Cave (Madrid), revealing 300,000 years of karst development, sedimentation, and Neanderthal occupations:
🔗 doi.org/10.1002/jqs....
May 20, 2025 at 4:56 PM
New paper out!
We explore the geological evolution of Des-Cubierta Cave (Madrid), revealing 300,000 years of karst development, sedimentation, and Neanderthal occupations:
🔗 doi.org/10.1002/jqs....
We explore the geological evolution of Des-Cubierta Cave (Madrid), revealing 300,000 years of karst development, sedimentation, and Neanderthal occupations:
🔗 doi.org/10.1002/jqs....
Reposted by Manuel Hernández Fernández
🦏🦣🦌 LARGE paper alert!!! We tracked 60 million years of large herbivore evolution—over 3,000 fossil species—to uncover how ecosystems have changed and reorganized through time. What we found might help us understand the next big tipping point 🧵👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Two major ecological shifts shaped 60 million years of ungulate faunal evolution - Nature Communications
Here, the authors analyze a fossil dataset spanning 60 million years to investigate ecological stability. Their network analysis identifies prolonged stability interrupted by two major functional tran...
www.nature.com
June 5, 2025 at 9:10 AM
🦏🦣🦌 LARGE paper alert!!! We tracked 60 million years of large herbivore evolution—over 3,000 fossil species—to uncover how ecosystems have changed and reorganized through time. What we found might help us understand the next big tipping point 🧵👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Manuel Hernández Fernández
Thrilled to see our work on sloth evolution finally published @science.org! Huge thanks to Alberto Boscaini and Daniel Casali for bringing me on board for such a fascinating project! 🦥
#evolution #paleontology #paleobiology
#evolution #paleontology #paleobiology
Ancient sloths ranged in size from tiny climbers to ground-dwelling giants.
Now, researchers report in Science that this body size diversity was largely shaped by sloths’ habitats, and that these animals’ precipitous decline was likely a result of increasing human pressures. scim.ag/43dd0t7
Now, researchers report in Science that this body size diversity was largely shaped by sloths’ habitats, and that these animals’ precipitous decline was likely a result of increasing human pressures. scim.ag/43dd0t7
The emergence and demise of giant sloths
The emergence of multi-tonne herbivores is a recurrent aspect of the Cenozoic mammalian radiation. Several of these giants have vanished within the past 130,000 years, but the timing and macroevolutio...
scim.ag
May 22, 2025 at 7:41 PM
Thrilled to see our work on sloth evolution finally published @science.org! Huge thanks to Alberto Boscaini and Daniel Casali for bringing me on board for such a fascinating project! 🦥
#evolution #paleontology #paleobiology
#evolution #paleontology #paleobiology
Reposted by Manuel Hernández Fernández
Elisabeth Vrba obituary www.tandfonline.com/doi/full/10..... My thanks to Georg Vrba, Elisabeth’s husband, for information and photos on her life and work in South Africa.
Elisabeth Vrba obituary
Published in Transactions of the Royal Society of South Africa (Ahead of Print, 2025)
www.tandfonline.com
May 30, 2025 at 4:15 PM
Elisabeth Vrba obituary www.tandfonline.com/doi/full/10..... My thanks to Georg Vrba, Elisabeth’s husband, for information and photos on her life and work in South Africa.
Reposted by Manuel Hernández Fernández
If you are interested in biodiversity in deep time, check out my new preprint with @rachelwarnock.bsky.social and @dralexdunhill.bsky.social! We review methods of quantifying diversity and diversification, using the fossil record and phylogenies with extinct tips 🐚🦕📊
doi.org/10.32942/X2D...
doi.org/10.32942/X2D...
“A history of the world imperfectly kept”: Will we ever know how biodiversity has changed over deep time?
doi.org
May 6, 2025 at 1:51 PM
If you are interested in biodiversity in deep time, check out my new preprint with @rachelwarnock.bsky.social and @dralexdunhill.bsky.social! We review methods of quantifying diversity and diversification, using the fossil record and phylogenies with extinct tips 🐚🦕📊
doi.org/10.32942/X2D...
doi.org/10.32942/X2D...