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chikichanka.bsky.social
Miguel Clavero
@chikichanka.bsky.social
1.3K followers 850 following 2K posts
Biodiversity and Conservation researcher at @ebdonana.bsky.social (Sevilla, Spain). Historical ecologist. Musician (kind of). Father of two
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chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · Nov 21
El blues en casa (Blues at home)
Free to listen, download and distribute
miguelitoyradiocopy.bandcamp.com/album/el-blu...
El blues en casa, by Miguelito y Radiocopy
12 track album
miguelitoyradiocopy.bandcamp.com
1 3 12
Reposted by Miguel Clavero
sheldonbirds.bsky.social
Ben Sheldon @sheldonbirds.bsky.social · 10h
Fascinating, while at the same time somewhat nightmarish:

www.science.org/doi/10.1126/...
Greater noctule bats prey on and consume passerines in flight
Despite billions of passerines seasonally migrating during the night at high altitudes, only three bat species have been found to consistently tap into this rich prey resource. However, it remains unk...
www.science.org
4 12 37
Reposted by Miguel Clavero
eldiario.es
elDiario.es @eldiario.es · 11h
‼️Documentan por primera vez cómo el murciélago 'gigante' de Doñana atrapa y devora pájaros en pleno vuelo
Documentan por primera vez cómo el murciélago 'gigante' de Doñana atrapa y devora pájaros en pleno vuelo
Tras décadas de intentos, un equipo liderado por la Estación Biológica de Doñana ha logrado registrar el sonido de un nóctulo grande depredando un petirrojo europeo en el aire
www.eldiario.es
1 34 97
Reposted by Miguel Clavero
aberron.bsky.social
Antonio Martínez Ron @aberron.bsky.social · 11h
FLIPANTE‼️ Miles de aves se pusieron a cantar al final del eclipse solar de 2024 como si estuviera amaneciendo www.eldiario.es/1_c143ca?utm...
Miles de aves se pusieron a cantar al final del eclipse solar de 2024 como si estuviera amaneciendo
Un nuevo estudio, con participación ciudadana, documenta por primera vez con detalle el sorprendente comportamiento de los pájaros antes, durante y después de un eclipse total
www.eldiario.es
3 26 83
Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 13h
Now imagine that any of the bird species shown below was commercially exploited as food, through a globalized market linked to luxury and with interwined legal and ilegal components
Would there be any hope for them?
That is what is happening with the European eel (and other Anguilla species)
(1/3)
2 2 3
Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 14h
Los rorcuales y las ballenas francas australes se alimentan de krill en aguas antárticas, pero no lo agotan, sino que lo fomentan al exportar nutrientes a zonas poco profundas.
Parecen ganaderas de gambitas
Y a menos ballenas, menos krill
Es alucinante
👇🏼👇🏼
c0nc0rdance.bsky.social
c0nc0rdance @c0nc0rdance.bsky.social · 16h
The global whaling industry experienced a boom c. 1840-1950 as technology allowed whalers to hunt the Southern Ocean around Antarctica.

Under standard models, we would have expected krill populations to have *exploded*.

Instead, they DROPPED exponentially.

Let's talk about the KRILL PARADOX.
Change in distribution and abundance of southern right whales. (A) Shows historical and contemporary wintering distributions (Figure 1 from Carroll et al., 2018), and (B) shows decline in abundance and subsequent recovery (solid line is the mean, dashed line shows upper and lower 95% CI). Modified Figure 1 from Jackson et al. (2008). Contemporary sightings are divided into regions where large aggregations are seen during winter: Argentina (ARG), Brazil (BZL), South Africa (SAF), southwest Australia (SWA), south central Australia (SCA), and New Zealand sub-Antarctic (NZSA) and regions where sightings are typically of small numbers of individuals per year. The large aggregations are IWC management units and correspond to historical whaling grounds, although another 5 whaling grounds show little sign of recovery. Summer feeding areas are poorly described and so not shown.
2 6
Reposted by Miguel Clavero
science.org
Science Magazine @science.org · 13h
In an analysis of 1.2 million news stories about scholarly research, men-led papers were found to receive more attention overall and were heavily overrepresented in the top 5% of most covered studies. https://scim.ag/4o7l5a5
When women researchers publish, media attention doesn’t always follow
Men-led papers receive more media coverage than women’s, new study finds
scim.ag
4 32 46
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 13h
(3/3)
theconversation.com/why-we-need-...
Why we need a moratorium on eel fishing
High demand for eels around the world has led to massive overfishing and plummeting populations.
theconversation.com
1
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 13h
(2/3)
theconversation.com/eels-have-fa...
Eels have fascinated us for ages - now we need to stop eating them
No one would think of eating an endangered animal like the Iberian lynx. So why do we still eat eels?
theconversation.com
1 1
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 13h
Now imagine that any of the bird species shown below was commercially exploited as food, through a globalized market linked to luxury and with interwined legal and ilegal components
Would there be any hope for them?
That is what is happening with the European eel (and other Anguilla species)
(1/3)
2 2 3
Reposted by Miguel Clavero
mascarell.bsky.social
Alex Mascarell Llosa @mascarell.bsky.social · 14h
🧪🪶🌍🕊 25 Critically Endangered Birds
All of these species are on the brink of extinction.
A poster to raise awareness and inspire action. Every effort counts. ✨
2 15 25
Reposted by Miguel Clavero
brentcemerson.bsky.social
Brent Emerson @brentcemerson.bsky.social · 21h
!!!
www.nature.com/articles/s41...
Archived natural DNA samplers reveal four decades of biodiversity change across the tree of life - Nature Ecology & Evolution
This study explores four decades of biodiversity change across the tree of life in Germany’s terrestrial and aquatic ecosystems by sequencing standardized biota samples from a long-term pollution monitoring archive.
www.nature.com
14 19
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 14h
@elfinancieromx.bsky.social ,
Las anguilas, igual la europea que la americana, no resisten la explotación.
Ligar el consumo de sus larvas (angulas) al lujo sólo fomenta la extinción de estos maravillosos animales (ver abajo)
Hay que parar.
Ya y del todo
www.elfinanciero.com.mx/food-and-dri...
2 2
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 14h
Los rorcuales y las ballenas francas australes se alimentan de krill en aguas antárticas, pero no lo agotan, sino que lo fomentan al exportar nutrientes a zonas poco profundas.
Parecen ganaderas de gambitas
Y a menos ballenas, menos krill
Es alucinante
👇🏼👇🏼
c0nc0rdance.bsky.social
c0nc0rdance @c0nc0rdance.bsky.social · 16h
The global whaling industry experienced a boom c. 1840-1950 as technology allowed whalers to hunt the Southern Ocean around Antarctica.

Under standard models, we would have expected krill populations to have *exploded*.

Instead, they DROPPED exponentially.

Let's talk about the KRILL PARADOX.
Change in distribution and abundance of southern right whales. (A) Shows historical and contemporary wintering distributions (Figure 1 from Carroll et al., 2018), and (B) shows decline in abundance and subsequent recovery (solid line is the mean, dashed line shows upper and lower 95% CI). Modified Figure 1 from Jackson et al. (2008). Contemporary sightings are divided into regions where large aggregations are seen during winter: Argentina (ARG), Brazil (BZL), South Africa (SAF), southwest Australia (SWA), south central Australia (SCA), and New Zealand sub-Antarctic (NZSA) and regions where sightings are typically of small numbers of individuals per year. The large aggregations are IWC management units and correspond to historical whaling grounds, although another 5 whaling grounds show little sign of recovery. Summer feeding areas are poorly described and so not shown.
2 6
Reposted by Miguel Clavero
c0nc0rdance.bsky.social
c0nc0rdance @c0nc0rdance.bsky.social · 16h
The global whaling industry experienced a boom c. 1840-1950 as technology allowed whalers to hunt the Southern Ocean around Antarctica.

Under standard models, we would have expected krill populations to have *exploded*.

Instead, they DROPPED exponentially.

Let's talk about the KRILL PARADOX.
Change in distribution and abundance of southern right whales. (A) Shows historical and contemporary wintering distributions (Figure 1 from Carroll et al., 2018), and (B) shows decline in abundance and subsequent recovery (solid line is the mean, dashed line shows upper and lower 95% CI). Modified Figure 1 from Jackson et al. (2008). Contemporary sightings are divided into regions where large aggregations are seen during winter: Argentina (ARG), Brazil (BZL), South Africa (SAF), southwest Australia (SWA), south central Australia (SCA), and New Zealand sub-Antarctic (NZSA) and regions where sightings are typically of small numbers of individuals per year. The large aggregations are IWC management units and correspond to historical whaling grounds, although another 5 whaling grounds show little sign of recovery. Summer feeding areas are poorly described and so not shown.
4 99 210
Reposted by Miguel Clavero
txaverius.bsky.social
Javier Martín @txaverius.bsky.social · 15h
Un prado de jeringuillas en una hoja de ortiga.
4 13 65
Reposted by Miguel Clavero
ebdonana.bsky.social
Estación Biológica de Doñana - CSIC @ebdonana.bsky.social · 17h
🪰 Describen el fósil de quironómido más antiguo del hemisferio sur, el cual aporta nuevas pistas sobre el origen de esta familia.

Esta nueva especie muestra una adaptación para fijarse a rocas en agua dulce.

🔗 delegacion.andalucia.csic.es/una-nueva-es...

📄 www.sciencedirect.com/science/arti...
1 3 5
Reposted by Miguel Clavero
juanluisjimenez.bsky.social
Juan Luis Jiménez @juanluisjimenez.bsky.social · 23h
Importante resultado: análisis causal para España muestra que al aumentar el número de turistas recibidos aumenta el empleo en el sector, pero:

❌No aumenta el empleo total.
❌Se reduce empleo en sector manufacturero.
❌Bajan los salarios.
❌Aumenta empleo baja cualificación.
1 10 18
Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 1d
Como pasa tantas veces, la prohibición de la pesca de la angula no genera ningún problema social real. Es pura narrativa victimista
Los 198 kg pescados en Euskadi la temporada pasada supusieron menos de 150000 euros (ni 1000 euros por -supuesto- profesional... ni para 4 contratos da)
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 1d
En palabras del Gobierno Vasco: “la prioridad es evitar la desaparición total de la anguila europea. Si no actuamos ahora, dentro de unos años ya no habrá nada que proteger… ni que cocinar”
¿alguna razón para no actuar ya, @miteco.gob.es?
www.elespanol.com/cocinillas/a...
Esta Navidad habrá menos angulas: el motivo por el que el Gobierno Vasco ha suspendido su pesca
La situación crítica de la especie no ha sido revertida a pesar de las medidas aplicadas según advierten varios informes. Más información: El mejor croissant de España está en una pastelería artesanal...
www.elespanol.com
2 11
Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 1d
La España afro
Cosas que no sabemos porque no se cuentan
En un pasado no muy lejano, muchas ciudades españolas tuvieron más población africana de la que hay hoy.
Sevilla, de las que más
www.rtve.es/play/audios/...
La España afro, un legado oculto
Rastreamos la huella de la presencia negra en España a lo largo de la historia, una herencia africana silenciada que forma parte de nuestra identidad.
www.rtve.es
4 6
Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 1d
Antonio Serrano
Premio Nacional de Músicas Actuales 2025
Qué maravilla
Ahí va un número con Paco de Lucía
youtu.be/6gjPDqrSjKo?...
Antonio Serrano junto a Paco de Lucía
YouTube video by KAMALA PRODUCCIONES
youtu.be
1 2
Reposted by Miguel Clavero
aberron.bsky.social
Antonio Martínez Ron @aberron.bsky.social · 1d
Os dejo esto aquí www.eldiario.es/opinion/zona...
¡Nos fumigan!
Por supuesto que los aviones vierten sustancias químicas a la atmósfera. Esta es la realidad que muchos conspiranoicos no quieren ver
www.eldiario.es
3 8 30
Reposted by Miguel Clavero
carlzimmer.com
Carl Zimmer @carlzimmer.com · 1d
Today my @nytimes.com colleagues and I are launching a new series called Lost Science. We interview US scientists who can no longer discover something new about our world, thanks to this year‘s cuts. Here is my first interview with a scientist who studied bees and fires. Gift link: nyti.ms/3IWXbiE
nyti.ms
140 1.7K 4.5K
Reposted by Miguel Clavero
greenleejw.bsky.social
Surprised Eel Historian, PhD @greenleejw.bsky.social · 1d
It's Wednesday. You need some eels in your life, right? And some otters?

Here you go!

A scene of otters & eels, from an early 15th C. copy of Gaston Phoebus's Livre de la chasse. Eel blood is toxic to mammals, but otters don't care. They love them some eels.

Can you blame them?
A medieval painting of otters playing in a pool, chasing and catching eels and other fish. There are 10 adult otters, and what look to be 2 younger otters in a den at the base of a tree. They are all doing serious otter things: playing, eating, cavorting, eating, gamboling, eating, swimming, and eating. They are having a good time. For now. It can't last, though. This pond seems way too small to support all of these otters, and the painting has a border around it. They can't leave, and soon they will turn on each other in a bloodbath that will make the Donner Party look like a tea time at the Rotary Club. If you check back with these otters in two weeks, I suspect you'll find only carnage. That, though, is a problem for Future Otters. Today's otters are carefree, with spotless souls. Source: Morgan (MS M.1044 fol. 28r)
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Reposted by Miguel Clavero
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 3d
La Subdirección General de los Archivos Estatales del @culturagob.bsky.social se hace eco, en su cuenta de aquel otro lado, del trabajo de @aliciasemperem.bsky.social y mío sobre la introducción del cangrejo de río que-no-es-autóctono (@miteco.gob.es)
En el post de abajo, el articulo de Ecomandanga
4 5
chikichanka.bsky.social
Miguel Clavero @chikichanka.bsky.social · 1d
Antonio Serrano
Premio Nacional de Músicas Actuales 2025
Qué maravilla
Ahí va un número con Paco de Lucía
youtu.be/6gjPDqrSjKo?...
Antonio Serrano junto a Paco de Lucía
YouTube video by KAMALA PRODUCCIONES
youtu.be
1 2