jörg.freyhof
@jfreyhof.bsky.social
Berlin-based biodiversity scientist. #ichthyology #biodiversity #conservation #urbanbiodiversity #urbanecology #mothing #photography
Moth are gone, so more time for lichens. Made a small lichenological survey in my neighbourhood - this should be Xanthomendoza ulophyllodes. Looks like X. fallax, but was on bark and X. fallax should be on stones. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
December 6, 2025 at 9:05 PM
Moth are gone, so more time for lichens. Made a small lichenological survey in my neighbourhood - this should be Xanthomendoza ulophyllodes. Looks like X. fallax, but was on bark and X. fallax should be on stones. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Polycauliona polycarpa was always missing from my lichen lists in Berlin - finally today I found some in the inner city. Most likely I have overseen this tiny species for long. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
December 4, 2025 at 7:43 PM
Polycauliona polycarpa was always missing from my lichen lists in Berlin - finally today I found some in the inner city. Most likely I have overseen this tiny species for long. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Today I found Enchylium tenax directly in front of our door in Berlin. While I am looking out for lichens since several years - I had completely missend this. Not a rare species - but defintively underrecorded. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
November 29, 2025 at 4:48 PM
Today I found Enchylium tenax directly in front of our door in Berlin. While I am looking out for lichens since several years - I had completely missend this. Not a rare species - but defintively underrecorded. #teamlichen, #lichen, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Last week I was at the www.tropicalbiosummit.org Indeed, very interesting - many great speakers and much inspiration!
One morning I was able to go birding before the conference - also a nice experience to see some wetland birds.
One morning I was able to go birding before the conference - also a nice experience to see some wetland birds.
November 25, 2025 at 1:36 PM
Last week I was at the www.tropicalbiosummit.org Indeed, very interesting - many great speakers and much inspiration!
One morning I was able to go birding before the conference - also a nice experience to see some wetland birds.
One morning I was able to go birding before the conference - also a nice experience to see some wetland birds.
Three weeks, no picture of moth posted by me. Yes, the season is coming to an end, but still some interesting species are still on the wing, as this Asteroscopus sphinx. It came to the light yesterday in Berlin. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
November 14, 2025 at 4:28 PM
Three weeks, no picture of moth posted by me. Yes, the season is coming to an end, but still some interesting species are still on the wing, as this Asteroscopus sphinx. It came to the light yesterday in Berlin. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
My observation of the day: Carabus granulatus heavily colonised by the mite Iphidosoma fimetarium. Naturally, I had no idea which mite this might be - iNaturalist owen_seeman provided the identification. 👍 iNaturalist #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
November 12, 2025 at 7:19 PM
My observation of the day: Carabus granulatus heavily colonised by the mite Iphidosoma fimetarium. Naturally, I had no idea which mite this might be - iNaturalist owen_seeman provided the identification. 👍 iNaturalist #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Our son now studies in Freiburg/Breisgau. Good reason for a visit to the city and the Belchen, one of the most important places within the hotspot area for lichens in Germany. Breathtaking indeed, even we found only 60 of the about 1000 species. Some highlights.
November 6, 2025 at 10:11 PM
Our son now studies in Freiburg/Breisgau. Good reason for a visit to the city and the Belchen, one of the most important places within the hotspot area for lichens in Germany. Breathtaking indeed, even we found only 60 of the about 1000 species. Some highlights.
Our new open-access book has been published today. Please download and share
www.degruyterbrill.com/document/doi...
www.degruyterbrill.com/document/doi...
October 31, 2025 at 6:37 PM
Our new open-access book has been published today. Please download and share
www.degruyterbrill.com/document/doi...
www.degruyterbrill.com/document/doi...
Nice Tree of Souls (Hericium coralloides) seen today close to Berlin. Despite intensive search, no Omatikaya Na’vi were seen, but Eywa stopped us to take it home. A strictly protected species here.
October 26, 2025 at 4:40 PM
Nice Tree of Souls (Hericium coralloides) seen today close to Berlin. Despite intensive search, no Omatikaya Na’vi were seen, but Eywa stopped us to take it home. A strictly protected species here.
Not sure how i find this. Wonderful wild collected lichens to be used short term for decoration.
October 25, 2025 at 4:53 PM
Not sure how i find this. Wonderful wild collected lichens to be used short term for decoration.
Eupsilia transversa is a quite common moth in Berlin. It hatches in fall and hibernates as an adult. In German, it's "Satellit-Wintereule" as beside the bright yellow or white spot, there are two satellites – so nice. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
October 22, 2025 at 8:47 PM
Eupsilia transversa is a quite common moth in Berlin. It hatches in fall and hibernates as an adult. In German, it's "Satellit-Wintereule" as beside the bright yellow or white spot, there are two satellites – so nice. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Weather is grey and cold in Berlin - our moth are not. October is still a great season with many very nice species on the wing. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
October 11, 2025 at 10:42 AM
Weather is grey and cold in Berlin - our moth are not. October is still a great season with many very nice species on the wing. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
From time to time I like to advertise my Flickr page www.flickr.com/photos/joerg...
Almost 1000 pictures for you to use freely and open access - no payment for all your non-commercials
Almost 1000 pictures for you to use freely and open access - no payment for all your non-commercials
October 7, 2025 at 2:45 PM
From time to time I like to advertise my Flickr page www.flickr.com/photos/joerg...
Almost 1000 pictures for you to use freely and open access - no payment for all your non-commercials
Almost 1000 pictures for you to use freely and open access - no payment for all your non-commercials
Not very easy to find Craterellus cornucopioides, Totentrompete, around Berlin as we have mostly sour soils. But there are places and then there are many. Yesterday we had a nice success. Very lecker!
October 6, 2025 at 6:20 PM
Not very easy to find Craterellus cornucopioides, Totentrompete, around Berlin as we have mostly sour soils. But there are places and then there are many. Yesterday we had a nice success. Very lecker!
At my last day in Greece, I visited the late Bronze Age palace of Mycenae. Two cool lichens sticks out, Bagliettoa marmorea and (maybe) Lichinella nigritella.
October 5, 2025 at 8:16 AM
At my last day in Greece, I visited the late Bronze Age palace of Mycenae. Two cool lichens sticks out, Bagliettoa marmorea and (maybe) Lichinella nigritella.
Potentially, this is Enchylium tenax, Zähe Leimflechte, in Leonidio/Greece. A lichen that is associated with Nostoc algae. Rather small species that is very common on raw soils
October 2, 2025 at 5:30 PM
Potentially, this is Enchylium tenax, Zähe Leimflechte, in Leonidio/Greece. A lichen that is associated with Nostoc algae. Rather small species that is very common on raw soils
Acherontia atropos, Totenkopfschwärmer, at Leonidio/Greece. A moth every moth-er wants to see. Yesterday was my night, and as expected, this massive critter emerging from the dark and hovering around the light is a stunner.
October 1, 2025 at 10:04 PM
Acherontia atropos, Totenkopfschwärmer, at Leonidio/Greece. A moth every moth-er wants to see. Yesterday was my night, and as expected, this massive critter emerging from the dark and hovering around the light is a stunner.
We always read about degraded landscapes - in northern Greece, due to land abandoning, there are large naturally regrown forests full of fantastic macro-lichens. Sadly these forests are without megaherbivores due to poaching.
October 1, 2025 at 9:54 AM
We always read about degraded landscapes - in northern Greece, due to land abandoning, there are large naturally regrown forests full of fantastic macro-lichens. Sadly these forests are without megaherbivores due to poaching.
Short-toed Eagle seen in Greece.
September 28, 2025 at 6:53 PM
Short-toed Eagle seen in Greece.
Eleonorafalcons on Skyros/Greece. Absolutely fantastic birds.
September 25, 2025 at 6:12 PM
Eleonorafalcons on Skyros/Greece. Absolutely fantastic birds.