David Kleijn
@davidkleijn.bsky.social
Conservation ecologist, Pollinator afficionado, Wageningen University
Intensifying grassland management leads to massive loss of arthropod species. However, total arthropod numbers remain more or less stable. Many losers, few winners. doi.org/10.1016/j.bi...
October 10, 2025 at 12:05 PM
Intensifying grassland management leads to massive loss of arthropod species. However, total arthropod numbers remain more or less stable. Many losers, few winners. doi.org/10.1016/j.bi...
Finished data collection for this paper 19 years ago 🫣
September 27, 2025 at 4:01 PM
Finished data collection for this paper 19 years ago 🫣
Higher cutting frequency can restore habitat quality on farmland. doi.org/10.1111/1365...
September 27, 2025 at 4:01 PM
Higher cutting frequency can restore habitat quality on farmland. doi.org/10.1111/1365...
Just because it is so beautiful. Megachile laechella. Rare in the Netherlands, but locally abundant in the dunes of Terschelling. The Dutch name 'zilveren fluitje' means silver whistle, after the high tone it makes while flying and the colour of.., well just look at it.
June 21, 2025 at 12:08 PM
Just because it is so beautiful. Megachile laechella. Rare in the Netherlands, but locally abundant in the dunes of Terschelling. The Dutch name 'zilveren fluitje' means silver whistle, after the high tone it makes while flying and the colour of.., well just look at it.
They seem to be a lot less shy on Terschelling (NL). Took this one yesterday with my phone.
June 19, 2025 at 5:28 PM
They seem to be a lot less shy on Terschelling (NL). Took this one yesterday with my phone.
Bees and beers. The typical use of fridges by pollinator ecologists during field season.
May 23, 2025 at 4:38 PM
Bees and beers. The typical use of fridges by pollinator ecologists during field season.
In another project restpoll.bsky.social we investigate whether flower plantings can improve pollen dispersal between subpopulations. Scientists in action.
May 23, 2025 at 4:35 PM
In another project restpoll.bsky.social we investigate whether flower plantings can improve pollen dispersal between subpopulations. Scientists in action.
What are the consequences of pollinator decline for wild plants? Here we try to find out in @valor-project.eu. Interesting observations. I never see Centaurea jacea flowers with pollen. But keep the pollinators away and the flowers are dusted white. Very popular species.
May 23, 2025 at 4:26 PM
What are the consequences of pollinator decline for wild plants? Here we try to find out in @valor-project.eu. Interesting observations. I never see Centaurea jacea flowers with pollen. But keep the pollinators away and the flowers are dusted white. Very popular species.
Our field site for the pollination study in the Horizon Europe VALOR project. A bit jealous of the PhD student who gets to spend a couple of months there 🤨
April 7, 2025 at 3:11 PM
Our field site for the pollination study in the Horizon Europe VALOR project. A bit jealous of the PhD student who gets to spend a couple of months there 🤨
LOL. Protect the insects with Unilux screendoors. Almost sorry I don't need them
March 29, 2025 at 3:17 PM
LOL. Protect the insects with Unilux screendoors. Almost sorry I don't need them