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TheHoffmanLab @TheHoffmanLab

The Hoffman Lab @unibielefeld! We aim to understand the genetic basis of fitness variation in and among natural populations.

Joined October 2018
  • Tweets 162
  • Following 42
  • Followers 212
29 Photos and videos
Dear all, we have moved to BlueSky, connect with us on @thehoffmanlab.bsky.social🦋 The old twitter account will be discontinued. Thank you for following us and we hope to see you on BlueSky!
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Some of our lab members visited the Marine Mammal conference in Perth, Oz. They had a great time (and the ones staying at home are very jealous! 😉) #PerthSMM2024 @marinemammalogy
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TheHoffmanLab retweeted
Joe hoffman@J_I_Hoffman
1 Oct 2024
New paper on the genetic and fitness consequences of an extreme bottleneck on northern elephant seals nature.com/articles/s41559-0…

Genomic and fitness consequences of a near-extinction event in the northern elephant seal

Nature Ecology & Evolution - Analysis of northern elephant seal populations shows no evidence of inbreeding depression, probably because a recent extreme bottleneck purged much of the genetic...

nature.com
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Our lab's #SPP1158 project members at the SPP coordination workshop (including Ramona on the poster, who unfortunately could not be there) @SPPAntarktis
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TheHoffmanLab retweeted
British Antarctic Survey 🐧@BAS_News
17 Oct 2023
ICYMI, yesterday we reported the major decline of the Antarctic fur seal on Bird Island - a 40% drop in the population since 2009 🦭 Here's population biologist Jaume Forcada to introduce the story ⬇️ Full article and film: ow.ly/C8Sh50PXJOc
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Check out this paper by one of our PhD candidate @AnnekeTw1tter et al! Using both #SNP data as well as #microsatellites, they found that there was no consistent effect of either individual or maternal #inbreeding 1/2
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on three important early #Antarctic fur seal life traits; pup birth weight, pup survival and pup growth. The findings suggest that #selection may mainly act on the juvenile life stage, rather than early pup life stage. Read more in @SciReports nature.com/articles/s41598-0…
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Check out this new #paper by Ramona and colleagues! Climate change and human activities are altering polar #ocean #soundscapes. They compared offshore soundscapes of the eastern Fram Strait, #Arctic, and Weddell Sea, #Antarctic, and found... 1/3
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... that the Arctic region, with reduced sea ice cover and impacted by human-made #noise, lacks seasonal dynamics and complexity. By contrast, the soundscape of the quasi-pristine Weddell Sea, showed seasonal dynamics and complexity... 2/3
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... reflecting seasonal patterns in the #vocal activity of #MarineMammal communities linked to sea ice conditions. Read more: royalsocietypublishing.org/d… @RSocPublishing

Characterizing offshore polar ocean soundscapes using ecoacoustic intensity and diversity metrics

Abstract. Polar offshore environments are considered the last pristine soundscapes, but accelerating climate change and increasing human activity threaten

royalsocietypublishing.org
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Runs of Homozygosity (#ROHs) are a powerful tool to quantify genomic inbreeding. Yet, they haven't been applied to #fungi... until now! 1/3
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@BrejonEtienne and colleagues used whole #genomes from 225 samples of Boletus edulis spread across the Northern hemisphere and found that ROHs could reveal the genomic legacies of major #climatic events in this key forest engineer. 2/3
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Check out the paper in @molecology 👉 onlinelibrary.wiley.com/doi/…

Runs of homozygosity reveal contrasting histories of inbreeding across global lineages of the...

Inbreeding, the mating of individuals that are related through common ancestry, is of central importance in evolutionary and conservation biology due to its impacts on individual fitness and popula...

onlinelibrary.wiley.com
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Check out this paper by colleague @ebbetoj! Jonas et al. explored how an individual's genotype is encoded in #odour. One of the potential pathways could be via the major histocompatibility complex (#MHC). However, they found... 1/3
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... no effects of MHC  relatedness on #chemical similarity of #skin swabs. There was also no relationship between MHC heterozygosity and chemical diversity. 2/3
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These findings question the role of MHC in the chemical encoding of genetic information in the Antarctic fur seal. Paper in #ProceedingsB @RSocPublishing https://royalsocietypublishingorg/doi/10.1098/rspb.2023.2519
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Several of our lab members are joining the conservation genomics conference in Paris! 👇
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Ane Liv Berthelsen presented her first preliminary results of her trait decomposition project
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.@ecopetridish presented her poster on host-microbiome interactions in the Antarctic fur seal!
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