Leonardo Feitosa 🦈🇧🇷
@manirfeitosa.bsky.social
PhD in Environmental Science & Management. Fisheries ecology & conservation | bioeconomics | wildlife trade. Views my own.
https://lmfeitos.github.io/Leonardo-Feitosa/
https://lmfeitos.github.io/Leonardo-Feitosa/
Reposted by Leonardo Feitosa 🦈🇧🇷
✊🏾🚺 PACTO NACIONAL CONTRA O FEMINICÍDIO
🏛 O presidente Luiz Inácio Lula da Silva lança nesta quarta-feira (4), no Palácio do Planalto, o Pacto Nacional Brasil de Enfrentamento ao Feminicídio. A solenidade reúne Alcolumbre, Motta, Fachin e Lula, os presidentes dos Três Poderes.
🏛 O presidente Luiz Inácio Lula da Silva lança nesta quarta-feira (4), no Palácio do Planalto, o Pacto Nacional Brasil de Enfrentamento ao Feminicídio. A solenidade reúne Alcolumbre, Motta, Fachin e Lula, os presidentes dos Três Poderes.
February 4, 2026 at 3:06 PM
✊🏾🚺 PACTO NACIONAL CONTRA O FEMINICÍDIO
🏛 O presidente Luiz Inácio Lula da Silva lança nesta quarta-feira (4), no Palácio do Planalto, o Pacto Nacional Brasil de Enfrentamento ao Feminicídio. A solenidade reúne Alcolumbre, Motta, Fachin e Lula, os presidentes dos Três Poderes.
🏛 O presidente Luiz Inácio Lula da Silva lança nesta quarta-feira (4), no Palácio do Planalto, o Pacto Nacional Brasil de Enfrentamento ao Feminicídio. A solenidade reúne Alcolumbre, Motta, Fachin e Lula, os presidentes dos Três Poderes.
Reposted by Leonardo Feitosa 🦈🇧🇷
Are female economists treated differently than males in academic seminars?
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
February 3, 2026 at 8:54 PM
Are female economists treated differently than males in academic seminars?
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
Reposted by Leonardo Feitosa 🦈🇧🇷
Last call! Our next Important Shark and Ray Areas workshop will focus on the North American and Caribbean Atlantic and North American Pacific. Preliminary areas of interest must be submitted to submissions@sharkrayareas.org by February 6th.
Spread the word to interested colleagues!
Spread the word to interested colleagues!
January 30, 2026 at 8:01 AM
Last call! Our next Important Shark and Ray Areas workshop will focus on the North American and Caribbean Atlantic and North American Pacific. Preliminary areas of interest must be submitted to submissions@sharkrayareas.org by February 6th.
Spread the word to interested colleagues!
Spread the word to interested colleagues!
Submitted the last chapter of my PhD dissertation today 🎉🎉🎉
Four years in the making, fingers crossed for a positive outcome 🤞🏼
Four years in the making, fingers crossed for a positive outcome 🤞🏼
January 23, 2026 at 7:10 PM
Submitted the last chapter of my PhD dissertation today 🎉🎉🎉
Four years in the making, fingers crossed for a positive outcome 🤞🏼
Four years in the making, fingers crossed for a positive outcome 🤞🏼
Reposted by Leonardo Feitosa 🦈🇧🇷
New paper out today! "Fossil otolith assemblages reveal millennial-scale changes in reef fish biomass and trophic structure across the Isthmus of Panama"
🔓https://doi.org/10.1098/rstb.2024.0419
We used fossil fish otoliths to reconstruct community structure and energetics over millennia.
🔓https://doi.org/10.1098/rstb.2024.0419
We used fossil fish otoliths to reconstruct community structure and energetics over millennia.
January 22, 2026 at 9:16 PM
New paper out today! "Fossil otolith assemblages reveal millennial-scale changes in reef fish biomass and trophic structure across the Isthmus of Panama"
🔓https://doi.org/10.1098/rstb.2024.0419
We used fossil fish otoliths to reconstruct community structure and energetics over millennia.
🔓https://doi.org/10.1098/rstb.2024.0419
We used fossil fish otoliths to reconstruct community structure and energetics over millennia.
Reposted by Leonardo Feitosa 🦈🇧🇷
Last term I tried an experiment: I walked into my Tech and Design Ethics class, admitted that I had *no idea* what to do about ChatGPT - so I would let them figure it out.
As in: their first project was to decide and write the ChatGPT policy for the class.
Here's what happened:
As in: their first project was to decide and write the ChatGPT policy for the class.
Here's what happened:
January 22, 2026 at 11:36 PM
Last term I tried an experiment: I walked into my Tech and Design Ethics class, admitted that I had *no idea* what to do about ChatGPT - so I would let them figure it out.
As in: their first project was to decide and write the ChatGPT policy for the class.
Here's what happened:
As in: their first project was to decide and write the ChatGPT policy for the class.
Here's what happened:
Reposted by Leonardo Feitosa 🦈🇧🇷
Our new paper is online! We found that 1) today's shark & ray diversity was already reached ~100Ma; 2) that the K/Pg extinction was not catastrophic; 3) that the max diversity was reached ~50Ma; and 4) that today's diversity is depleted compared to the past.
www.cell.com/current-biol...
www.cell.com/current-biol...
Revealing the hidden patterns of shark and ray diversity over the past 145 million years
Gardiner et al. reconstruct the diversity of sharks and rays across the past 145 million
years using deep learning and an extensive dataset. Their results unveil previously
hidden patterns, including ...
www.cell.com
January 22, 2026 at 4:41 PM
Our new paper is online! We found that 1) today's shark & ray diversity was already reached ~100Ma; 2) that the K/Pg extinction was not catastrophic; 3) that the max diversity was reached ~50Ma; and 4) that today's diversity is depleted compared to the past.
www.cell.com/current-biol...
www.cell.com/current-biol...
Reposted by Leonardo Feitosa 🦈🇧🇷
Americans need to come to grips with the reality that the world doesn't see Trump as the threat but America itself.
January 21, 2026 at 4:43 PM
Americans need to come to grips with the reality that the world doesn't see Trump as the threat but America itself.
Reposted by Leonardo Feitosa 🦈🇧🇷
É inacreditável. Esse valor MENSAL é de 3 a 4,5 vezes o orçamento total anual (esse pífio) das Universidades Federais
O Banco Central estima que entre R$ 20 bilhões e R$ 30 bilhões são movimentados por mês em apostas on-line. http://dlvr.it/TQQhcb
January 19, 2026 at 12:47 AM
É inacreditável. Esse valor MENSAL é de 3 a 4,5 vezes o orçamento total anual (esse pífio) das Universidades Federais
Let that sink in!
Instead the world’s leaders are fighting for soon to be dead product because they like how it was when they were young 🫠
Instead the world’s leaders are fighting for soon to be dead product because they like how it was when they were young 🫠
The world dedicates a Poland-sized area of land to producing liquid biofuels such as bioethanol & biodiesel. Is there a more efficient way to generate energy?
Putting solar panels on the land used for biofuels, e.g., would produce enough electricity for all cars and trucks worldwide to go electric.
Putting solar panels on the land used for biofuels, e.g., would produce enough electricity for all cars and trucks worldwide to go electric.
January 14, 2026 at 2:06 AM
Let that sink in!
Instead the world’s leaders are fighting for soon to be dead product because they like how it was when they were young 🫠
Instead the world’s leaders are fighting for soon to be dead product because they like how it was when they were young 🫠
Reposted by Leonardo Feitosa 🦈🇧🇷
We will either end fossil fuel dependency and the predatory extractivist basis of global production, or they will end us through wars and ecological collapse - all at the same time.
January 3, 2026 at 3:34 PM
We will either end fossil fuel dependency and the predatory extractivist basis of global production, or they will end us through wars and ecological collapse - all at the same time.
They’ll keep saying this over and over until the bubble bursts and then it’ll be chaos… a completely manufactured (and avoidable) crisis 🙄
as if the onus for improving quality and usefulness is somehow on the critics or the consumer
Microsoft's Satya Nadella wants you to stop saying AI "slop" in 2026
In closing comments of 2025, Microsoft CEO Satya Nadella shared an update on the company's mindset for 2026 — shocker, it's all about AI.
www.windowscentral.com
January 3, 2026 at 1:43 AM
They’ll keep saying this over and over until the bubble bursts and then it’ll be chaos… a completely manufactured (and avoidable) crisis 🙄
Reposted by Leonardo Feitosa 🦈🇧🇷
Chia-Hsuan Hsu waited 18 months before chasing an editor for a decision on a paper
go.nature.com/4j47KhM
go.nature.com/4j47KhM
Dear editors, your publication delays are damaging our careers
Chia-Hsuan Hsu waited 18 months before chasing an editor for a decision on a paper. The answer surprised him.
go.nature.com
January 1, 2026 at 5:11 PM
Chia-Hsuan Hsu waited 18 months before chasing an editor for a decision on a paper
go.nature.com/4j47KhM
go.nature.com/4j47KhM
Reposted by Leonardo Feitosa 🦈🇧🇷
Closing out my year with a journal editor shocker 🧵
Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
December 19, 2025 at 5:20 PM
Closing out my year with a journal editor shocker 🧵
Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
Truly awesome science right here! 👇🏼
New paper alert!
We reconstructed the diversification trajectory of sharks & rays over the past 145 myrs to answer:
When did they experience major extinction events?
Does age play a role in extinction selectivity?
If so, does it change with extinction intensity?
👉 doi.org/10.1098/rspb...
We reconstructed the diversification trajectory of sharks & rays over the past 145 myrs to answer:
When did they experience major extinction events?
Does age play a role in extinction selectivity?
If so, does it change with extinction intensity?
👉 doi.org/10.1098/rspb...
December 17, 2025 at 2:27 PM
Truly awesome science right here! 👇🏼
Reposted by Leonardo Feitosa 🦈🇧🇷
We're hiring!
Seasonal Research Assistant and Senior Research Assistant positions for 2026 🪶
Deadline: 11th Jan 26
Apply here: app.vacancy-filler.co.uk/salescrm/Car...
Seasonal Research Assistant and Senior Research Assistant positions for 2026 🪶
Deadline: 11th Jan 26
Apply here: app.vacancy-filler.co.uk/salescrm/Car...
December 11, 2025 at 3:04 PM
We're hiring!
Seasonal Research Assistant and Senior Research Assistant positions for 2026 🪶
Deadline: 11th Jan 26
Apply here: app.vacancy-filler.co.uk/salescrm/Car...
Seasonal Research Assistant and Senior Research Assistant positions for 2026 🪶
Deadline: 11th Jan 26
Apply here: app.vacancy-filler.co.uk/salescrm/Car...
Reposted by Leonardo Feitosa 🦈🇧🇷
My alma mater, Leicester University, is dissolving its Geology Department leading to the loss of 14 staff. Palaeo is being completely axed, despite Leicester's long and storied history in this area (and its current strengths). Please sign this petition!!: www.change.org/p/save-geolo...
Sign the Petition
Save Geology at the University of Leicester
www.change.org
November 19, 2025 at 9:10 AM
My alma mater, Leicester University, is dissolving its Geology Department leading to the loss of 14 staff. Palaeo is being completely axed, despite Leicester's long and storied history in this area (and its current strengths). Please sign this petition!!: www.change.org/p/save-geolo...
The fisheries minister from Brazil has a point but needs to work harder to enact fisheries management and end open access fisheries in the country. Otherwise we’ll just end up with even more overexploited and collapsed fisheries, harming people, species, and the climate 👎🏼
[COMMENTARY]
The “blue” — or aquatic — foods sector is often overlooked as a climate strategy, despite its potential to help meet demand for protein with a smaller environmental footprint, fisheries ministers from Brazil and Portugal argue in a new op-ed.
** The views expressed are the authors'.
The “blue” — or aquatic — foods sector is often overlooked as a climate strategy, despite its potential to help meet demand for protein with a smaller environmental footprint, fisheries ministers from Brazil and Portugal argue in a new op-ed.
** The views expressed are the authors'.
Embrace ‘blue’ foods as a climate strategy at COP30, fisheries ministers say (commentary)
As two coastal countries connected by the Atlantic Ocean and five centuries of shared history, Brazil and Portugal have long appreciated the value of “blue” or aquatic foods, including our shared…
news.mongabay.com
November 13, 2025 at 4:56 PM
The fisheries minister from Brazil has a point but needs to work harder to enact fisheries management and end open access fisheries in the country. Otherwise we’ll just end up with even more overexploited and collapsed fisheries, harming people, species, and the climate 👎🏼
Reposted by Leonardo Feitosa 🦈🇧🇷
With current pledges, the world's on track for 2.6°C of warming in 2100 compared to preindustrial levels.
10 years ago, before the Paris agreement, it was 3.6°C
20+ years ago, we thought it would be 4-5°C
So 2.6°C is better, but the problem is that climate impacts are way worse than we predicted.
10 years ago, before the Paris agreement, it was 3.6°C
20+ years ago, we thought it would be 4-5°C
So 2.6°C is better, but the problem is that climate impacts are way worse than we predicted.
World still on track for catastrophic 2.6C temperature rise, report finds
Fossil fuel emissions have hit a record high while many nations have done too little to avert deadly global heating
www.theguardian.com
November 13, 2025 at 12:55 PM
With current pledges, the world's on track for 2.6°C of warming in 2100 compared to preindustrial levels.
10 years ago, before the Paris agreement, it was 3.6°C
20+ years ago, we thought it would be 4-5°C
So 2.6°C is better, but the problem is that climate impacts are way worse than we predicted.
10 years ago, before the Paris agreement, it was 3.6°C
20+ years ago, we thought it would be 4-5°C
So 2.6°C is better, but the problem is that climate impacts are way worse than we predicted.
Reposted by Leonardo Feitosa 🦈🇧🇷
Lucro da Vale é mais de 330 vezes maior do que investimentos da mineradora na área socioambiental na Amazônia, via @obsmineracao.bsky.social observatoriodamineracao.com.br/lucro-da-val...
Lucro da Vale é mais de 330 vezes maior do que investimentos da mineradora na área socioambiental na Amazônia - Observatório da Mineração
Texto: Lúcio Lambranho Edição: Maurício Angelo Revisão jurídica: Bruno Teixeira Peixoto A mineradora Vale tem executado uma série de ações como parte da campanha para tentar limpar a imagem negativa a...
observatoriodamineracao.com.br
November 10, 2025 at 9:49 AM
Lucro da Vale é mais de 330 vezes maior do que investimentos da mineradora na área socioambiental na Amazônia, via @obsmineracao.bsky.social observatoriodamineracao.com.br/lucro-da-val...
Successfully defended my PhD dissertation yesterday! Such a crazy feeling once you realize you’ve accomplished your dream from 10 years ago in one of the best research institutions in the world and being advised by such amazing scientists!
October 31, 2025 at 11:55 PM
Successfully defended my PhD dissertation yesterday! Such a crazy feeling once you realize you’ve accomplished your dream from 10 years ago in one of the best research institutions in the world and being advised by such amazing scientists!
Reposted by Leonardo Feitosa 🦈🇧🇷
Lower-middle-income countries disproportionately face the burden of the Open Access publication model https://www.biorxiv.org/content/10.1101/2025.10.23.684097v1
October 25, 2025 at 1:31 AM
Lower-middle-income countries disproportionately face the burden of the Open Access publication model https://www.biorxiv.org/content/10.1101/2025.10.23.684097v1
Reposted by Leonardo Feitosa 🦈🇧🇷
POSTDOC JOB AD: I'm hiring a Bayesian ecologist to build a (IMO, extremely fun) model of humpback whale spatiotemporal dynamics in California
2-year position starting fall 2026. in-person in Santa Cruz; collab w with Mevin Hooten's lab at UT Austin.
ask me Qs or apply: recruit.ucsc.edu/JPF02003
2-year position starting fall 2026. in-person in Santa Cruz; collab w with Mevin Hooten's lab at UT Austin.
ask me Qs or apply: recruit.ucsc.edu/JPF02003
Fredston Lab: Postdoctoral Scholar
University of California, Santa Cruz is hiring. Apply now!
recruit.ucsc.edu
October 22, 2025 at 5:14 PM
POSTDOC JOB AD: I'm hiring a Bayesian ecologist to build a (IMO, extremely fun) model of humpback whale spatiotemporal dynamics in California
2-year position starting fall 2026. in-person in Santa Cruz; collab w with Mevin Hooten's lab at UT Austin.
ask me Qs or apply: recruit.ucsc.edu/JPF02003
2-year position starting fall 2026. in-person in Santa Cruz; collab w with Mevin Hooten's lab at UT Austin.
ask me Qs or apply: recruit.ucsc.edu/JPF02003
Reposted by Leonardo Feitosa 🦈🇧🇷
Happy International Sawfish Day from the IUCN SSC Shark Specialist Group!
© IUCN SSC Shark Specialist Group and Eloisa Pinheiro
#IntlSawfishDay #shark #ray #chimaera #marine #conservation #biodiversity
© IUCN SSC Shark Specialist Group and Eloisa Pinheiro
#IntlSawfishDay #shark #ray #chimaera #marine #conservation #biodiversity
October 17, 2025 at 5:01 AM
Happy International Sawfish Day from the IUCN SSC Shark Specialist Group!
© IUCN SSC Shark Specialist Group and Eloisa Pinheiro
#IntlSawfishDay #shark #ray #chimaera #marine #conservation #biodiversity
© IUCN SSC Shark Specialist Group and Eloisa Pinheiro
#IntlSawfishDay #shark #ray #chimaera #marine #conservation #biodiversity
Reposted by Leonardo Feitosa 🦈🇧🇷
Introducing BIRDBASE, which aims to be the world's most comprehensive avian trait ecology database. Article links to open access paper, & data in Excel spreadsheet. phys.org/news/2025-09... #science #environment #ecology #eco #biology #bird #birds #birding #birdwatching #openaccess #datascience
BIRDBASE dataset tracks ecological traits for 11,589 species of birds
Çağan Şekercioğlu was an ambitious, but perhaps naive graduate student when, 26 years ago, he embarked on a simple data-compilation project that would soon evolve into a massive career-defining achiev...
phys.org
October 4, 2025 at 12:21 PM
Introducing BIRDBASE, which aims to be the world's most comprehensive avian trait ecology database. Article links to open access paper, & data in Excel spreadsheet. phys.org/news/2025-09... #science #environment #ecology #eco #biology #bird #birds #birding #birdwatching #openaccess #datascience