Agreed. Deeper mandibles tend to be associated with males of species with larger harems - and dimorphism is not tied to allometry with larger body sizes - in other words, otariids don't follow Rensch's rule. I discuss this relationship a bit in the blog post
October 21, 2025 at 7:11 PM
Agreed. Deeper mandibles tend to be associated with males of species with larger harems - and dimorphism is not tied to allometry with larger body sizes - in other words, otariids don't follow Rensch's rule. I discuss this relationship a bit in the blog post
so I suspect that that is an effect of sexual dimorphism and perhaps body size/allometry. C. gilmorei is a gracile Pliocene 'dwarf' form (black mandible = male, above female specimen). T. mexicanus specimen shown also female - here's a male mandible for comparison:
October 21, 2025 at 7:06 PM
so I suspect that that is an effect of sexual dimorphism and perhaps body size/allometry. C. gilmorei is a gracile Pliocene 'dwarf' form (black mandible = male, above female specimen). T. mexicanus specimen shown also female - here's a male mandible for comparison:
A very interesting and clever study which explores how change is distributed between anagenesis and cladogenesis (gradual vs punctuational change) in the light of brain-body size allometry in modern primates.
🧪 ⚒️ #Paleobio #EvoBio #Macroecology
academic.oup.com/evolut/artic...
🧪 ⚒️ #Paleobio #EvoBio #Macroecology
academic.oup.com/evolut/artic...
October 11, 2025 at 10:09 PM
A very interesting and clever study which explores how change is distributed between anagenesis and cladogenesis (gradual vs punctuational change) in the light of brain-body size allometry in modern primates.
🧪 ⚒️ #Paleobio #EvoBio #Macroecology
academic.oup.com/evolut/artic...
🧪 ⚒️ #Paleobio #EvoBio #Macroecology
academic.oup.com/evolut/artic...
Increasing tree size across Amazonia 🧪🌐 #allometry www.nature.com/articles/s41...
Increasing tree size across Amazonia - Nature Plants
A global research network monitoring the Amazon for 30 years reports in this study that tree size increased by 3% each decade.
www.nature.com
September 30, 2025 at 7:16 AM
Increasing tree size across Amazonia 🧪🌐 #allometry www.nature.com/articles/s41...
#ESHE2025
Martin Friess ‘ The posterior vault shape in Homo – Assessing XJY6 and XUC1 morphometric affinities’
Xujiayao 200-160 Ka; Xuchang-Lingjing 125-105 Ka
Large comparative GMM analysis – within erectus range, but marginal; very large! Allometry? ~8% shape s2.
Martin Friess ‘ The posterior vault shape in Homo – Assessing XJY6 and XUC1 morphometric affinities’
Xujiayao 200-160 Ka; Xuchang-Lingjing 125-105 Ka
Large comparative GMM analysis – within erectus range, but marginal; very large! Allometry? ~8% shape s2.
September 26, 2025 at 9:28 AM
#ESHE2025
Martin Friess ‘ The posterior vault shape in Homo – Assessing XJY6 and XUC1 morphometric affinities’
Xujiayao 200-160 Ka; Xuchang-Lingjing 125-105 Ka
Large comparative GMM analysis – within erectus range, but marginal; very large! Allometry? ~8% shape s2.
Martin Friess ‘ The posterior vault shape in Homo – Assessing XJY6 and XUC1 morphometric affinities’
Xujiayao 200-160 Ka; Xuchang-Lingjing 125-105 Ka
Large comparative GMM analysis – within erectus range, but marginal; very large! Allometry? ~8% shape s2.
Biodiversity modulates the cross-community scaling relationship in changing environments #allometry #scaling 🌐🧪 onlinelibrary.wiley.com/doi/abs/10.1...
Biodiversity modulates the cross‐community scaling relationship in changing environments
Organismal abundance typically declines with increasing body size, with metabolic theory predicting a universal size–abundance slope of –0.75. Using protist microcosms across gradients of species ric...
onlinelibrary.wiley.com
September 24, 2025 at 10:55 PM
Biodiversity modulates the cross-community scaling relationship in changing environments #allometry #scaling 🌐🧪 onlinelibrary.wiley.com/doi/abs/10.1...
Actus Mer/Sea News: Evolution of a remarkable intracellular polymer and extreme cell allometry in hagfishes - @CellPressNews http://dlvr.it/S8g3kF
January 28, 2025 at 7:45 PM
Actus Mer/Sea News: Evolution of a remarkable intracellular polymer and extreme cell allometry in hagfishes - @CellPressNews http://dlvr.it/S8g3kF
Sex-based shape differences in the scapula don't align with shape changes driven by allometry, suggesting that sexual dimorphism in scapular shape is not due to inherent differences in body size. Read the full study by @ErinCSLee and @RainbowBiomech here: doi.org/10.1111/joa....
December 9, 2024 at 9:46 AM
Sex-based shape differences in the scapula don't align with shape changes driven by allometry, suggesting that sexual dimorphism in scapular shape is not due to inherent differences in body size. Read the full study by @ErinCSLee and @RainbowBiomech here: doi.org/10.1111/joa....
SYMPOSIUM OUTLOOK: Beyond the usual suspects: expanding aging research from classic models to really cool critters
By Amy Walker @akw-lab.bsky.social
➡️ genesdev.cshlp.org/content/39/1...
#animalmodels #aging #longevity #allometry #immune #metabolism #environment #openaccess #lifespan #genomics
By Amy Walker @akw-lab.bsky.social
➡️ genesdev.cshlp.org/content/39/1...
#animalmodels #aging #longevity #allometry #immune #metabolism #environment #openaccess #lifespan #genomics
August 22, 2025 at 2:01 PM
SYMPOSIUM OUTLOOK: Beyond the usual suspects: expanding aging research from classic models to really cool critters
By Amy Walker @akw-lab.bsky.social
➡️ genesdev.cshlp.org/content/39/1...
#animalmodels #aging #longevity #allometry #immune #metabolism #environment #openaccess #lifespan #genomics
By Amy Walker @akw-lab.bsky.social
➡️ genesdev.cshlp.org/content/39/1...
#animalmodels #aging #longevity #allometry #immune #metabolism #environment #openaccess #lifespan #genomics
📖Published📖
Yang et al. highlight the importance of coupling growth mechanisms in modelling allometry and provide a theoretical foundation for better describing and predicting forest carbon accumulation 🌳 🧪
doi.org/10.1111/2041...
Yang et al. highlight the importance of coupling growth mechanisms in modelling allometry and provide a theoretical foundation for better describing and predicting forest carbon accumulation 🌳 🧪
doi.org/10.1111/2041...
April 4, 2024 at 12:00 PM
📖Published📖
Yang et al. highlight the importance of coupling growth mechanisms in modelling allometry and provide a theoretical foundation for better describing and predicting forest carbon accumulation 🌳 🧪
doi.org/10.1111/2041...
Yang et al. highlight the importance of coupling growth mechanisms in modelling allometry and provide a theoretical foundation for better describing and predicting forest carbon accumulation 🌳 🧪
doi.org/10.1111/2041...
The novel approach? Dynamic allometric scaling.
Instead of a single snapshot, Cruz et al. analyzed temporal shifts in COVID-19 scaling across wild-type, alpha, delta, and omicron waves—linking cases, deaths, demographics, and ICU capacity #Scaling #allometry 2/
Instead of a single snapshot, Cruz et al. analyzed temporal shifts in COVID-19 scaling across wild-type, alpha, delta, and omicron waves—linking cases, deaths, demographics, and ICU capacity #Scaling #allometry 2/
May 2, 2025 at 2:14 PM
The novel approach? Dynamic allometric scaling.
Instead of a single snapshot, Cruz et al. analyzed temporal shifts in COVID-19 scaling across wild-type, alpha, delta, and omicron waves—linking cases, deaths, demographics, and ICU capacity #Scaling #allometry 2/
Instead of a single snapshot, Cruz et al. analyzed temporal shifts in COVID-19 scaling across wild-type, alpha, delta, and omicron waves—linking cases, deaths, demographics, and ICU capacity #Scaling #allometry 2/
#Megalodon is #hostage to an anthropomorphic interpretation hyper #iconic-metaphorical of the #fossil remains?? A #shark subject to strong #allometry & #heterochrony?? #Otodus re-interpretation need?? .. www.researchgate.net/post/Megalod...
Megalodon is hostage to an anthropomorphic interpretation hyper iconic-metaphorical of the fossil remains (strong allometry & heterochrony)?? | ResearchGate
Read 3 answers by scientists with 2 recommendations from their colleagues to the question asked by Salvatore Vicidomini on Jan 3, 2024
www.researchgate.net
May 6, 2025 at 9:30 AM
#Megalodon is #hostage to an anthropomorphic interpretation hyper #iconic-metaphorical of the #fossil remains?? A #shark subject to strong #allometry & #heterochrony?? #Otodus re-interpretation need?? .. www.researchgate.net/post/Megalod...
Volumes change with age - but more with body surface area (BSA) or weight to a power < 1 "a scalar". This is known as allometry and reminds us that much of physiology and pharmacology in infants and children relates to basal metabolic rate - rather than just "kg"
February 27, 2025 at 5:21 AM
Volumes change with age - but more with body surface area (BSA) or weight to a power < 1 "a scalar". This is known as allometry and reminds us that much of physiology and pharmacology in infants and children relates to basal metabolic rate - rather than just "kg"
Nature is full of surprises.. but Who eats Whom? 🐡🐋Conventionally aquatic food web models are based on simple size-based (allometry) rules but the co-evolutionary arms race betw predators & prey means predators can eat v smaller or larger prey as these authors show ✅
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The complex structure of aquatic food webs emerges from a few assembly rules - Nature Ecology & Evolution
The structure of aquatic food webs does not fit standard allometric predictions. Here the authors explain the co-evolution of specialist and non-specialist predators in aquatic food webs and how this ...
www.nature.com
March 6, 2025 at 9:05 PM
Nature is full of surprises.. but Who eats Whom? 🐡🐋Conventionally aquatic food web models are based on simple size-based (allometry) rules but the co-evolutionary arms race betw predators & prey means predators can eat v smaller or larger prey as these authors show ✅
www.nature.com/articles/s41...
www.nature.com/articles/s41...
now that's what I call sexually dimorphic allometry
February 8, 2024 at 8:31 PM
now that's what I call sexually dimorphic allometry
Cats ignore allometry in every way possible.
July 21, 2025 at 9:09 PM
Cats ignore allometry in every way possible.
Cell type specific allometry controls sex-differences in Drosophila body size
#Drosophila
#Drosophila
Cell type specific allometry controls sex-differences in Drosophila body size
#Drosophila
PubMed link
pubmed.ncbi.nlm.nih.gov
September 5, 2025 at 11:23 AM
Cell type specific allometry controls sex-differences in Drosophila body size
#Drosophila
#Drosophila
Our (Charles Koven and Lara Kueppers) paper on #allometry and trade-offs in carbon investment for California grasses is now out esajournals.onlinelibrary.wiley.com/doi/10.1002/..., w/ species and functional type specific allometric equations for above and belowground structures available.
Allometric relationships and trade‐offs in 11 common Mediterranean‐climate grasses
<em>Ecological Applications</em> is an applied ecology journal discussing the applications of ecological science research for policy, management, and solving environmental problems.
esajournals.onlinelibrary.wiley.com
April 30, 2024 at 6:12 PM
Our (Charles Koven and Lara Kueppers) paper on #allometry and trade-offs in carbon investment for California grasses is now out esajournals.onlinelibrary.wiley.com/doi/10.1002/..., w/ species and functional type specific allometric equations for above and belowground structures available.
New CRAN package allometry with initial version 0.1.1
#rstats
https://cran.r-project.org/package=allometry
#rstats
https://cran.r-project.org/package=allometry
CRAN: Package allometry
Examples of datasets on allometry, the study of the relationship of biological traits to body size. This package contains the dataset of morphological measurement taken from 113 maritime earwigs (Anisolabis maritima) by Matsuzawa and Konuma (2025) <<a href="https://doi.org/10.1093%2Fbiolinnean%2Fblaf031" target="_top">doi:10.1093/biolinnean/blaf031</a>>.
cran.r-project.org
July 17, 2025 at 9:02 PM
New CRAN package allometry with initial version 0.1.1
#rstats
https://cran.r-project.org/package=allometry
#rstats
https://cran.r-project.org/package=allometry
Logarithm rules, monotonic and exponential functions, allometry etc but it’s like multiple things together and they made these ones pretty hard 😭
November 8, 2025 at 2:42 PM
Logarithm rules, monotonic and exponential functions, allometry etc but it’s like multiple things together and they made these ones pretty hard 😭
Using the #PHENOPSIS platform to automate measuring and testing #genotypes - Our study suggests that plant #allometry is genetically variable and might be related to different adaptive strategies to cope with stressing conditions.
February 9, 2023 at 3:24 PM
Using the #PHENOPSIS platform to automate measuring and testing #genotypes - Our study suggests that plant #allometry is genetically variable and might be related to different adaptive strategies to cope with stressing conditions.
I just asked #ChatGPT to give me some scaling and #allometry #haiku … Not bad
Scaling in biology,
Allometry and dimensional,
Space and time we scale.
From physiology,
To ecosystems and evolution,
Scaling laws we learn.
… https://mastodon.social/@bjenquist/109663178090232128
Scaling in biology,
Allometry and dimensional,
Space and time we scale.
From physiology,
To ecosystems and evolution,
Scaling laws we learn.
… https://mastodon.social/@bjenquist/109663178090232128
Brian J. Enquist (@[email protected])
I just asked #ChatGPT to give me some scaling and #allometry #haiku … Not bad
Scaling in biology,
Allometry and dimensional,
Space and time we scale.
From physiology,
To ecosystems and evolution,
Scaling laws we learn.
Scaling laws revealed,
From body size to species diversity,
Biology expands.
1/2
mastodon.social
January 10, 2023 at 5:09 AM
I just asked #ChatGPT to give me some scaling and #allometry #haiku … Not bad
Scaling in biology,
Allometry and dimensional,
Space and time we scale.
From physiology,
To ecosystems and evolution,
Scaling laws we learn.
… https://mastodon.social/@bjenquist/109663178090232128
Scaling in biology,
Allometry and dimensional,
Space and time we scale.
From physiology,
To ecosystems and evolution,
Scaling laws we learn.
… https://mastodon.social/@bjenquist/109663178090232128
Dumas et al. used long-term data on Alpine #swifts, traditionally described as monomorphic, to test for temporal changes in sexual dimorphism (SD) and allometry. They found small but persistent SD, temporal changes in SD, and negative allometric scaling in both sexes:
doi.org/10.1093/jeb/...
doi.org/10.1093/jeb/...
Temporal changes in sex-specific cryptic sexual dimorphism and allometric scaling in the long-lived Alpine swift Tachymarptis melba
Abstract. Morphological differences between the sexes are frequently reported in wild populations, which can extend beyond overall body size and result in
doi.org
October 24, 2025 at 2:42 PM
Dumas et al. used long-term data on Alpine #swifts, traditionally described as monomorphic, to test for temporal changes in sexual dimorphism (SD) and allometry. They found small but persistent SD, temporal changes in SD, and negative allometric scaling in both sexes:
doi.org/10.1093/jeb/...
doi.org/10.1093/jeb/...
Brain, Behav Evol: The Allometry of Brain Miniaturization in Ants http://bit.ly/f6g35S
January 18, 2025 at 4:39 PM
Brain, Behav Evol: The Allometry of Brain Miniaturization in Ants http://bit.ly/f6g35S
🌴🌴🌴New paper on height:diameter allometry for Prestoea acuminata, a dominant palm in Puerto Rico. 🌴🌴🌴
Work led by former MSc student at the Luquillo LTER @uslter.bsky.social
onlinelibrary.wiley.com/doi/10.1111/...
Work led by former MSc student at the Luquillo LTER @uslter.bsky.social
onlinelibrary.wiley.com/doi/10.1111/...
https://onlinelibrary.wiley.com/doi/10.1111/btp.13297
Wiley Online Library requires cookies for authentication and use of other site features; therefore, cookies must be enabled to browse the site. Detailed information on how Wiley uses cookies can be fo...
onlinelibrary.wiley.com
January 12, 2024 at 12:33 PM
🌴🌴🌴New paper on height:diameter allometry for Prestoea acuminata, a dominant palm in Puerto Rico. 🌴🌴🌴
Work led by former MSc student at the Luquillo LTER @uslter.bsky.social
onlinelibrary.wiley.com/doi/10.1111/...
Work led by former MSc student at the Luquillo LTER @uslter.bsky.social
onlinelibrary.wiley.com/doi/10.1111/...