How often do you see oak famale flowers?

We usually see oaks covered with catkins, but rarely stop to look for female flowers (unless you are an oak ecologist, I guess… :)). Quick look up on the internet, and it appears that female flowers are not frequently photographed as well… So, here are some from out work on Quercus ilex 🙂    …

New Phytologist paper on veto in masting is out

Variable, synchronized seed production, called masting, is a widespread reproductive strategy in plants. Numerous ideas were proposed to explain this bizarre reproductive behavior of trees, but there is no consensus how the synchrony among individual plants happen. In the recent study, we explored the environmental veto hypothesis, which assumes that reproductive synchrony is driven by…

Trees are waking up

This year is pretty cold one. So, even though it is already March, we are still waiting for the flowers to show up. But you can see it coming… here are the pics from the previous week (21.03.2018):   And today (28.03.2018), there were much more advanced already. Although you can already see the variation in…

Extremadura field season about to start

Last week, we arrived at the University of Extremadura, at Raul Bonal lab. We are about to start the pollen addition experiments, testing the density-dependence and synchrony-dependence of pollination efficiency in Quercus ilex. This is financed by the grant I recently got, and this post explains more about the research. Meanwhile, we are enjoying the beautiful…

Our new masting paper in New Phytologist

Today, we’ve got the acceptation letter from New Phytologist! Good day to start a new week 🙂 In the paper, we first added ‘complete reproductive failure ‘ (or veto) as an additional parameter the to resource budget model. This new parameter describes the situation in which all plants within population experience failure (they do not…

Seminar on masting in Poznań

Day after tomorrow (10.01.2018) I will talk about our recent work on ecology of masting. I sincerely invite everyone interested in ecology of trees, forests, and plants! 🙂 The seminar will take place at Faculty of Biology, Adam Mickiewicz University (Umultowska 89, room: Mała Aula), we start 12:15.  

Nature beyond linearity: new masting paper in Frontiers in Ecol & Evol

One another masting story that I co-authored was just published, this time in Frontiers in Ecology & Evolution. In the paper, we show that the widely accepted notion that weather variation alone could not explain masting is based on an assumption that the relationship between weather and seeding must be linear. Generally, the weather was…

Life, Death and Predation on the Greenland Ice Sheet

I have recently worked with a friend of mine, Krzysztof Zawierucha, on his data looking at the cryoconite communities on the margin of the Greenland Ice Sheet. We published a paper on in Limnology, and now the story was covered by Glacier Hub, including interview with Krzysztof 🙂 Check it our, it included cool pictures…

Large grant: role of pollen limitation in masting

I just received large grant from Polish National Science Foundation (over 100 000 euro) to run some cool masting experiments 😉 We will experimentally evaluate the role pollen limitation as a synchronizing factor in masting of oaks. We are going to test both density-dependence of pollen limitation, as well as phenology-dependence of it (see e.g….

Wind pollination, phenology, and masting – new paper in Ecology!

Both oaks and beech mast, i.e. show extremely high variability in seed production. In the new paper, now accepted in Ecology, we show that the mechanisms that lead to this variation are totally different between these species. The study was successful thanks to a work of a number of great researchers, with the great contribution…