#allometry — Public Fediverse posts

Now published... and on the #BiophysJ cover!

Cell Adhesion Pattern Shows Conserved #Scalings under #Geometrical Control

Studying the relationship between the size and the #anatomy and #physiology of #living #organisms has proven useful in deciphering what the key physical constraints are that apply to them. For instance, total adhesive pad area is found to #scale like organism mass over a wide variety of animal species, possibly to resist against body weight.

In this study, we apply this approach at the cell scale to ask how large-scale geometrical constraints affect the organisation of #adhesion patches and the size of #cellSubstrate contact at different stages of the #cellSpreading process. Indeed, #cells, like many animals, adhere to their substrate. For that, they use specific protein complexes, called #focalAdhesions, which form patches often situated at the cell periphery.

cc @JonFouchard

https://www.biophysics.org/blog/cell-adhesion-pattern-shows-conserved-scalings-under-geometrical-control

#cellAdhesion #biophysics #allometry

#30DayChartChallenge Día 17: Birds! 🐦 Hoy toca explorar relaciones en el mundo aviar con el increíble dataset AVONET. #RelationshipsWeek #Animals

Graficamos la Longitud del Ala vs. Masa Corporal (log-log) para >9500 especies. ¡Una relación clave en la biomecánica del vuelo! ✈️

Lo interesante:
1️⃣ Facetas por Hábitat: Vemos cómo la relación cambia (o no) entre Bosque, Marino, Pradera, etc. ¡La ecología importa!
2️⃣ Color por Orden: Los puntos coloreados muestran la diversidad taxonómica (12 órdenes principales). Passeriformes por todas partes!

Una visualización "complicada" (Día 15 😉) que revela la interacción entre tamaño, forma del ala, linaje evolutivo y ambiente.

🛠 #rstats #ggplot2 #readxl #data_table | Data: AVONET (Tobias et al. 2022) | Theme: #theme_week3_animals
📂 Código/Viz: https://t.ly/iEHPE

#Day17 #Birds #dataviz #DataVisualization #Ecology #Ornithology #Morphology #Allometry #AVONET #ggplot2 #RStats

Happy to share a new paper - "#scaling approaches and #macroecology provide a foundation for assessing ecological #resilience in the #anthropocene We advocate moving beyond qualitative resilience metaphors toward a more quantitative macroecological framework https://royalsocietypublishing.org/doi/10.1098/rstb.2023.0010 #biodiversity #allometry

Forest Fragmentation Is Changing The Shape Of Amazonian Trees, Finds Study [remotesensing]
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https://phys.org/news/2023-12-forest-fragmentation-amazonian-trees.html <-- shared technical article
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https://doi.org/10.1038/s41467-023-44004-5 <-- shared paper
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#GIS #spatial #mapping #amazonia #amazon #amazonrainforest #brazil #remotesensing #LiDAR #terrestrial #terrestriallaser #forestry #lossofhabitat #clearing #trees #vegetation #harvesting #model #modeling #canopy #tree #treecanopy #deforested #tropicalrainforest #tropical #rainforest #forestedge #treeshape #light #sunlight #biomass #ecosystem #treehealth #fragmentedforest #model #survey #habitatfragmentation #treearchitecture #allometry #forestconservation #foresthealth #CentralAmazonia #edgeeffects #carbonsequestration #climatechange

Our study supports the central assumptions of #MST and highlights the role of allometric models to understand the #physiological responses involved in #plant #adaptation. #Allometry is more variable between genotypes than between environments. Suggesting that natural selection can lead to the genetic differentiation of plant allometries in different environments, but that environmental changes have limited effect on a genetically-determined type of allometry.