Nicklas Jansson

Biologist (Phd) in love with old trees, dead wood, fungi, saproxylic beetles, solitary bees, bee-keeping, biodiversity, hollow oaks, Turkish wooded pastures

[Nicklas Jansson @NicklasJansson3]

@Devon_LNP Yes its ok! /Nicklas

[Nicklas Jansson @NicklasJansson3]

Fruit bodies from some more fungus species we can find on old oaks: oak polypore (Inonotus dryadeus), orange polypore (Hapalopilus croceus), oak mazegill (Daedalea quercina). They create important rot habitat for #saproxylic_invertebrates by soften the wood and adding mycelia.

[Nicklas Jansson @NicklasJansson3]

@InsectDiversity @JordanCuff Nice work! Congratulation! /Nicklas

[Nicklas Jansson @NicklasJansson3]

The thorny bushes are producing a lot of winter food for the birds and other animals this year. The hawthorns and the rose hips are shining red.

[Nicklas Jansson @NicklasJansson3]

@Greengrumbler @ConopsEnto Saw dust and oak leaves. Read more here: https://t.co/xnlOgQncjv
Kind regards /Nicklas

[Nicklas Jansson @NicklasJansson3]

Wood compost from the trunk of a hollow plum trees in an old orchard in Iwade, Kent, UK. Dorcatoma Bee & Nature is helping the rare beetle noble chafer living in the hollow trees as they are old and dying. Our beetle boxes will fill the age gap. Info: https://t.co/Bchc94DQnA

[Nicklas Jansson @NicklasJansson3]

@wrathofgnon @e_of_blandings Have seen similar traditions in the mountains in Turkey.

[Nicklas Jansson @NicklasJansson3]

Some of the nice oaks beeing studying this summer. To see how similar the species composition of saproxylic beetles (Wood dwelling) are between dead and allive old oaks (Quercus robur). #oaks #oldtree #ancientree #saproxylic

[Nicklas Jansson @NicklasJansson3]

The biggest black alder (Alnus glutinosa) in Sweden. It has a girth of 4.90m at 1.30 cm from ground level. Its standing in swampy part of an old park of Medevi brunn, our oldest health spa founded in 1678. It has a huge cavity in the trunk probably with many interesting creatures

[Nicklas Jansson @NicklasJansson3]

Nice to find an ash tree (Fraxinus excelsior) with a fully leafed crown. They create a special light condition when are healthy. The ashes have a hard situation and a great part seams to suffer from the disease Ash dieback (Hymenoscyphus fraxineus) as in last pic.

[Nicklas Jansson @NicklasJansson3]

@SuzeMoomin Yes, our studies at Linköping University have shown that its a similar number of beetle species living on the old oaks when they dies and fall. But to a high degree other species.

[Nicklas Jansson @NicklasJansson3]

On a hot thuesday like this we can enjoy a picture from a cold winter day, of the largest tree in Sweden - The Rumskulla oak. Over 14m in circumference. Unfortunately very near to death. #thicktrunktuesday

[Nicklas Jansson @NicklasJansson3]

@sarahhenshall @30DaysWild @CNPnature Hi Sarah, Nice catch! Check if it can be Carabus glabratus? More shiny, less violet than violaceus and less structured than problematicus and a bit broader pronotum...Thats my gut feeling..;-)

[Nicklas Jansson @NicklasJansson3]

@RGE_Art Thanks Richard! Yes, Im happy with them and like putting my energy in them.

[Nicklas Jansson @NicklasJansson3]

Wow...amazing tree! Must be the world record in number of hollows in one trunk! I would like to reveal its secrets in form of invertebrates hiding inside! I have spent 30 years of studying this kind of micro habitats. Pls visit for some the publications: https://t.co/AnSj4FG5kz

[Richard Geraint Evans @RGE_Art]

Apartment block

[Nicklas Jansson @NicklasJansson3]

@DartmoorSquares @jonhgurr Yes I guess so!

[Nicklas Jansson @NicklasJansson3]

Management methods from the past. In this case both concrete and sheet iron were used to fill and cover the trunk cavity and the part of the stem with rot. Today its a real high risc tree and a challange solving it in a healthy way for the oak tree and its inhabitatants.

[Nicklas Jansson @NicklasJansson3]

@silvecologist Wow, even expanding foam! I dont have another picture but will try to pass it and take a full one.

[Nicklas Jansson @NicklasJansson3]

@Robin_Trees Thanks! Yes, its funny! That one was even beautiful but so crazy....

[Nicklas Jansson @NicklasJansson3]

The small emperor moth (Saturnia pavonia) larva has soon finished its cocoon construction. Can clearly see its a relative to the silk moth (Bombyx mori) using a similar type of thread when weaving. Slowly the protection chamber for the pupal part of life hide the larva.

[Nicklas Jansson @NicklasJansson3]

@Liam_M_Crowley @JesamineCB I would guess for Carabus glabratus