Per Ahlberg Profile
Per Ahlberg

@PerAhlberg1

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Vertebrate palaeontologist at Uppsala University. Good cook, OK gardener, incompetent lute player. Opinions mine. Will flame apologists for tyranny.

Joined April 2012
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@PerAhlberg1
Per Ahlberg
8 months
In case anyone's wondering where I'm hanging out these days, you will find me in the empyrean where the butterflies fly. It's good there. Much better in fact, and without the musky stench of decay and deception. Will you join me?.
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@PerAhlberg1
Per Ahlberg
9 months
Our preprint about online AI segmentation again, in a different repository.
@ARPHAPreprints
ARPHAPreprints
9 months
This open-source software solution reliably reproduces expert-supervised fossil segmentation at a fraction of the time and cost and with greater accessibility than the existing tools: #tomography #machinelearning #openaccess
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@PerAhlberg1
Per Ahlberg
10 months
Comet photo by Janet, taken yesterday evening.
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@PerAhlberg1
Per Ahlberg
11 months
RT @JoannaKobierska: I'm back. I would appreciate if you spread word around.
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@PerAhlberg1
Per Ahlberg
1 year
Boost retweet!.
@CarlBovisNature
Carl Bovis
1 year
As it's Friday, I'm asking all my followers to please retweet (and comment) on this post if you see it, to help my bird account be seen! 🙏♥️. To make it worth sharing, here's Bruiser the one-legged Blue Tit chasing off a Chaffinch!😁. Thank you very much! 😊🐦
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@PerAhlberg1
Per Ahlberg
1 year
Pond joy: nourished during the summer by innumerable daphnia that it captured in its bladders, my bladderwort (Utricularia australis) is beginning to flower!
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@PerAhlberg1
Per Ahlberg
1 year
Anna again.
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@PerAhlberg1
Per Ahlberg
1 year
Another view.
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@PerAhlberg1
Per Ahlberg
1 year
Incredible aurora night in Uppsala tonight. The colours were clearly visible to the naked eye. This photo, showing my daughter Anna watching from a hill near our house, is not photoshopped!
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@PerAhlberg1
Per Ahlberg
1 year
RT @R1100GSBlueNose: And please don't use the hashtags #FarageRiot or #FaragesRiots or any combination like #FaragesRiot or #FarageRiots as….
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@PerAhlberg1
Per Ahlberg
1 year
My pond in late summer glory: pink "James Brydon" (Dreer, 1900) and white "Arc en Ciel" (Latour-Marliac, 1899) flowering together.
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@PerAhlberg1
Per Ahlberg
1 year
Here with her friends practicing Synchronised Lounging in the garden of Merton College - reaching 0.98 on the Brideshead Revisited scale.
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@PerAhlberg1
Per Ahlberg
1 year
A landmark day for me and Janet on Saturday, when our daughter Anna received her MBiol from Oxford. The end of four wonderful years and the beginning of a new adventure as she begins a DPhil in the autumn.
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@PerAhlberg1
Per Ahlberg
1 year
And a gorgeous but hard-to-photograph peacock, Inachis io.
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@PerAhlberg1
Per Ahlberg
1 year
Green-veined white, Pieris napi:
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@PerAhlberg1
Per Ahlberg
1 year
More butterflies! This is by far the best day so far this season. Silver-washed fritillary, Argynnis paphia:
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@PerAhlberg1
Per Ahlberg
1 year
. and a big hoverfly on the oregano.
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@PerAhlberg1
Per Ahlberg
1 year
A slightly tattered Red Admiral.
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@PerAhlberg1
Per Ahlberg
1 year
A sunny summer morning and the garden is buzzing! Bumblebee and honeybee on Veronica 'Lavendelturm'.
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