George Jarvis
@gc-jarvis.bsky.social
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Postdoc at the University of Chicago interested in body size, energy, and life history
pinned post!
Excited to share our study testing competing theories on the energy dynamics of hermaphroditism! Grateful to
@djmmeeg.bsky.social
for guidance, to Thomas Brey for metabolic rate data, and to Deborah Charlesworth for feedback. Thanks also to the editors and reviewers at Proc B.
@royalsociety.org
add a skeleton here at some point
19 days ago
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reposted by
George Jarvis
School of Biological Sciences, Monash @MonashBiol
9 days ago
Is hermaphrodism less common in animals because it is energetically more costly? George Jarvis and
@djmmeeg.bsky.social
have analysed 536 species of marine invertebrates and found that hermaphrodites require approximately 27% less energy than gonochores on average.
doi.org/10.1098/rspb...
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reposted by
George Jarvis
School of Biological Sciences, Monash @MonashBiol
9 days ago
Was Darwin wrong? Hermaphrodites found to be more energy efficient than animals with two sexes
monash.edu/science/news...
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Was Darwin wrong? Hermaphrodites found to be more energy efficient than animals with two sexes
Hermaphrodites may have an unexpected evolutionary advantage over animals with separate sexes, they use significantly less energy to live.
https://monash.edu/science/news-events/news/2025/was-darwin-wrong-hermaphrodites-found-to-be-more-energy-efficient-than-animals-with-two-sexes
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Excited to share our study testing competing theories on the energy dynamics of hermaphroditism! Grateful to
@djmmeeg.bsky.social
for guidance, to Thomas Brey for metabolic rate data, and to Deborah Charlesworth for feedback. Thanks also to the editors and reviewers at Proc B.
@royalsociety.org
add a skeleton here at some point
19 days ago
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reposted by
George Jarvis
Dustin Marshall
21 days ago
Darwin speculated that it was energetically costly to be an hermaphrodite. He thought that might explain why they were relatively rare in animals. Our paper out today tested this conjecture for the first time.
royalsocietypublishing.org/rspb/article...
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Hermaphrodites have lower metabolic rates than gonochores
Abstract. Hermaphroditism, where an individual can reproduce as both male and female, offers some clear reproductive advantages. Simultaneous hermaphroditi
https://royalsocietypublishing.org/rspb/article/292/2060/20252276/363968/Hermaphrodites-have-lower-metabolic-rates-than
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reposted by
George Jarvis
The American Genetic Association
8 months ago
Another cool genome assembly: The first phased, annotated, chromosome-level assembly for a reef-building tubeworm, Galeolaria caespitosa! The species has 11 autosomal chromosomes and no sex chromosomes.
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George Jarvis
Will White
12 months ago
Hiring a postdoc! For
#NSF
project on oyster metapopulations and restoration, led by Max Castorani at UVa. Two year position based at UVa, OSU, or remote. Ideal for PhDs in quant ecology or oceanography. Apply by March 1. Message me with questions!
jobs.virginia.edu/us/en/job/R0...
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Research Associate in Environmental Sciences in Charlottesville, Virginia, United States of America | Research at University of Virginia
Apply for Research Associate in Environmental Sciences job with University of Virginia in Charlottesville, Virginia, United States of America. Research at University of Virginia
https://jobs.virginia.edu/us/en/job/R0068841/Research-Associate-in-Environmental-Sciences
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George Jarvis
Dustin Marshall
12 months ago
We are extending the deadline past the 10th so everyone please repost. ECRs, there are still some places left so please apply!
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