Museum specimens reveal loss of pollen host plants as key factor driving wild bee decline in the netherlands

Autor: David Kleijn, Henk Siepel, Wim A. Ozinga, Jeroen Scheper, Menno Reemer, Ruud van Kats, Joop H.J. Schaminée, Giel T. J. van der Linden

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, 111(49), 17552-17557
Alterra Scientific Contributions, 47, 17-35
Proceedings of the National Academy of Sciences of the United States of America 111 (2014) 49
Proceedings of the National Academy of Sciences USA, 111, 49, pp. 17552-17557
Alterra Scientific Contributions, 47, pp. 17-35
Proceedings of the National Academy of Sciences USA, 111, 17552-17557

Evidence for declining populations of both wild and managed bees has raised concern about a potential global pollination crisis. Strategies to mitigate bee loss generally aim to enhance floral resources. However, we do not really know whether loss of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8751483437ed739d0b4476d96f24727a
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/135492

Spectroscopic observations of the optical counterpart of Centaurus X-4

Autor: F. Verbunt, W. Wamsteker, H. Pedersen, J. van Paradijs, T. J. van der Linden

Publikováno v: The Astrophysical Journal. 241:L161

The optical spectrum of the transient X-ray burst source Centaurus X-4 was observed about 5 weeks after the source reached its maximum. The brightness of the optical counterpart had decreased to V = 18.2, and the star had become appreciably redder (B

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a588ff0e6260f91dbd11359108f7700c
https://doi.org/10.1086/183382