Carlos M Herrera
@cmhmaliani.bsky.social
Organism-centered evolutionary ecologist addict to Natural History. Posts mainly on natural history, pollination, epigenetics and conservation See https://t.co/l8Vx6d4tdN for more
Desde Canadá a Panamá hay más de 5000 especies de abejas clasificadas en 173 géneros. Se acaba de publicar la segunda edición de The Bee Genera of North and Central America y el pdf completo se puede descargar de este enlace del Smithsonian 🐝 scholarlypress.si.edu/publications... 🐝
De verdad os lo digo, leed este hilo porque es sencillamente excelente. 👇👇
Francisco M. Azcárate@fmazcarate.bsky.social · last wk.1/29 Los incendios forestales no van a desaparecer. Las soluciones simplistas solo sirven para reforzar prejuicios, no para entender el fenómeno.🧵
Lysandra albicans, mi licénido favorito. De lo poco que se mueve por el campo estos días de pesadillescos calores (máximas de hasta 40ºC en plena sierra de Cazorla).
When heathlands are massively afforested with pines and climate change is at its prime… Just the same to what keeps happening in the Iberian Penisula, where we add a rugged topography. Why pine plantations are seldom mentioned in Spanish news?? www.france24.com/en/france-wh...
France: Why is the Southwest so vulnerable to wildfires?
The Gironde region around Bordeaux is once again battling major wildfires, four years after a devastating blaze swept through the area. As Morgan Ayre explains, a combination of high-risk factors, inc...
france24.com
Let me introduce the main characters in this story, the Gladiolus and its two Metschnikowia yeasts
Carlos M Herrera@cmhmaliani.bsky.social · 2w agoThere is actually more to plant-pollinator interactions than plants and pollinators. Hidden in nectar live yeasts with a crucial activity. I found that yeasts reversed the gradient of nectar sugar concentration along Gladiolus inflorescences. Whole story in this preprint. doi.org/10.64898/202...
There is actually more to plant-pollinator interactions than plants and pollinators. Hidden in nectar live yeasts with a crucial activity. I found that yeasts reversed the gradient of nectar sugar concentration along Gladiolus inflorescences. Whole story in this preprint. doi.org/10.64898/202...
Flower engineering by yeasts: reversal of nectar sugar concentration gradient within Darwin's syndrome inflorescences
Yeasts thriving in floral nectar have a proven ecological engineering capacity, as they modify the internal environment and the rewards of individual flowers in ways that influence how plants and pollinators interact. This floricentric perpective, however, produces only a partial view of the potential role of yeasts in plant-pollinator interactions, and little is known on their possible engineering effects on whole inflorescences. This study assessed yeast ability to shape features of the vertical inflorescences of Gladiolus illyricus (Iridaceae), a Darwin's syndrome plant (acropetalous protandrous flowers pollinated by insects foraging from bottom to top). When yeasts were excluded from inflorescences a declining gradient in nectar sugar concentration built up from the oldest, female-stage flowers at bottom up to the youngest, male-stage ones at top. This plant-intrinsic gradient was reversed in inflorescences with yeasts, where sugar concentration increased from the female-stage flowers harboring dense yeasts population to male-stage ones with few yeasts. The two species of yeasts involved ( Metschnikowi reukaufii and M. gruessii ) differed in their effects. Results add support to the growing consensus that specialized nectar yeasts can obfuscate intrinsic patterns of intra and interspecific variation in flowering features of plants at the level of individual flower, inflorescence, population and plant community. ### Competing Interest Statement The authors have declared no competing interest. Ministerio de Ciencia, Innovación y Universidades, https://ror.org/05r0vyz12, CGL2010-15964 Junta de Andalucía, https://ror.org/01jem9c82, P09-RNM-4517
doi.org
Estaba tardando en aparecer por Cazorla Zelus renardii, aka Chinche asesina norteamericana, aka Hylaeus-killer. Mis dos primeras vistas esta semana en inflorescencias de Eryngium campestre, una planta muy visitada por abejitas Hylaeus. Aquí está uno de ellos zampándose una hembra de H. variegatus
The early days of ecology and basic ecological concepts. This is Alfred Wallace's plain account of the immense tropical biodiversity he came across when collecting beetles in Borneo in 1855.
Son muy frecuentes durante la primera mitad del verano las especies de plantas con flores en tonos azulados/lilas (Lavandula, Cirsium, Klasea, Scabiosa ...). Todas ellas, sin excepción que yo conozca, son muy visitadas por mariposas. Aquí un buen ejemplo, Fabriciana adippe y Stachys officinalis.
PhD Position at Uppsala University. Sophie Karrenberg’s Lab. the project is about sex chromosome evolution in plants. Come join us! Deadline 22 July. www.uu.se/en/about-uu/...
PhD position in evolutionary genomics - Uppsala University
PhD position in evolutionary genomics, Department of Ecology and Genetics, Uppsala University
uu.se
Esta hembra de Xylocopa valga parece chica en comparación con la enormidad de la flor de azucena de mar (Pancratium maritimum). Carga polen mientras se cierne frente a la flor, sin detenerse mas que un instante en cada antera y sin parar las alas, un comportamiento poco habitual en esta gente.
The bee Ceylalictus variegatus (Halictidae) and the hoverfly Paragus quadrifasciatus (Syrphidae), two tiny floral visitors that can be seen these days on flowers of Cakile maritima (Brassicaceae) in seaside sand dunes of SW Iberia. Perhaps yet another example of mimic hoverfly.
A 2019 paper that is often used as evidence of the flawed 'windscreen phenomenon' has been retracted. I cited this paper a few years ago in explainers about why this particular anecdote cannot be used as evidence of insect decline. See thread below 👇 retractionwatch.com/2026/06/23/a...
A prolific evolutionary biologist caught faking data decades ago notches a new retraction
A study claiming a tenfold decrease in bugs splattered on evolutionary biologist Anders Møller’s windshield over two decades has been retracted. shanecotee / iStock Anders Møller, an influential ev…
retractionwatch.com
Natural history on canvas: Brueghel knew about bird-eating noctule bats Just published in @pnas.org, OA for all eyes Led by the one-and-only @romero-vidal.bsky.social, with the amazing @elena-tena.bsky.social and Sonia Sánchez-Navarro @ebdonana.bsky.social LINK: www.pnas.org/doi/10.1073/...
[Now writing a 'Responses to reviewers' letter] Reviewer 2: " ... a large field dataset collected over several years" Me: "English is not my mother tongue, but even so I'd say that 'several' is an egregious understatement for 29"
Miguel Clavero @chikichanka.bsky.social nos habla a menudo de gatos y Toxoplasma. Estos dibujos de Smart Alyk @smartalyk.bsky.social nos sirven para ponerle cara a ese protozoo gatuno. [os recomiendo la excelente serie de dibujos de organismos microscópicos que nos regala regularmente Smart Alyk]
Smart Alyk@smartalyk.bsky.social · last mo.DAY 385 SPECIES 385 - Toxoplasma gondii MEDIUM: Arches Paper. Chromatek & HWC watercolor, Sakura pen T. gondii is a single celled protozoan parasite that infects most warm blooded animals, including humans #sciart #watercolor #paint #protist #eukaryotic #protistsonsky
Pedazo hilo de interés público ( seguridad, sanidad y medioambiente ) que se ha marcado @defensafuentes.bsky.social . Y no os olvidéis de que con altas temperaturas hay otra cosa que hacer...mojarse contra el cambio climático (el negacionismo chusquero pone en riesgo la salud de todos!!)
Plataforma en Defensa de las Fuentes@defensafuentes.bsky.social · 2mo agoLlegan los calores estivales, y con ellos el clásico... 🚨⛱️😎 AVISO A VERANEANTES 😎⛱️🚨 A todos nos encanta eso de refrescar el cvlo en cualquier charca, pero a la hora de la verdad pocos saben realmente cómo y dónde deben hacerlo. Así que aquí va algo de información, que espero que sea de interés. 🪡🧵
Against the long-lasting dismissal of evolutionary significance of subindividual variation in plants, we show in this preprint that intraplant epigenetic mosaicism of somatic tissue (leaves) predicts the epigenetic and phenotypic divergence of pollen within the plant www.biorxiv.org/content/10.6...
Transgenerational imprint of subindividual variation: somatic epigenetic divergence within trees cascades into epigenetic and phenotypic pollen divergence
The evolutionary significance of somatic mosaicism created within plants by random epigenetic drift or localized responses to the environment will rest on its transgenerational implications. This pape...
biorxiv.org
Bob Ricklefs RIP. One of the giants of ecology. His textbooks were the gateway to the field for many students. His papers were invariably thoughtful, well-argued and provocative, even those I disagreed with. 🌏🧪🌐
dynamicecology.wordpress.com
Some weeks ago I read a post here on biases in the selection of plants for research. In particular, it pointed out that researchers seem to prefer to work on species with large, showy flowers. I forgot to write it down, and now it would be useful for something I'm writing. Does anyone remember it?
Ferdinandea fumipennis, un sírfido no demasiado común cuya distribución se limita al Mediterráneo occidental. Sus larvas comen madera en putrefacción de árboles caducifolios viejos, los adultos me parece a mí que tienen cierta preferencia por margaritas amarillas como esta (Crepis vesicaria)
🌼 Plantar flores silvestres está bien, pero mejor si ayudan a los polinizadores 🐝 @abejassilvestres.bsky.social, la Sociedad Gaditana de Historia Natural y @ebdonana.bsky.social, han publicado una guía gratuita que reúne cerca de 200 especies autóctonas www.revistaquercus.es/noticia/9378...
Female Flavipanurgus granadensis (Andrenidae: Panurginae), a tiny bee in a genus endemic to the Iberian Peninsula. Doubtless one of the rarest-to-watch European bees, not just by its restricted distribution, but also by its lightning-fast fly speed. Pollen specialist on small-flowered Helianthemum
More information and application: international.au.dk/about/profil... Please share widely!
2-year postdoc in large-herbivore ecology, trophic rewilding, and novel ecosystems - Vacancy at Aarhus University
Vacancy at Department of Biology - Ecoinformatics and Biodiversity, Aarhus University
international.au.dk
Las abejas de color negro azabache brillante del género Panurgus (Andrenidae) son especialistas en margaritas amarillas. Parecen derviches giradores, moviéndose nerviosos en círculos que siguen la disposición de las florecillas individuales del capítulo. Panurgus calcaratus sobre Tolpis umbellata.
Iberodes linifolia (Boraginaceae) y su polinizador casi exclusivo en Cazorla, Lasioglossum marginatum
Este librito es una magnífica herramienta para identificar nuestros rosales silvestres, que están estos días a tope de flores por doquier. Si no lo conoces te lo recomiendo vivamente. Riguroso contenido y precio increíble, poco mas de 5 € en la librería online de editorial.csic.es
