תוצאות חיפוש: Alexandra-Maria Klein

Nature communications

2015

Delivery of crop pollination services is an insufficient argument for wild pollinator conservation

Mickaël Henry, Rémy Chifflet, Orianne Rollin, Alexandra-Maria Klein, Jonathan Colville, Maj Rundlöf, Claire Kremen, Leithen M'Gonigle, Bryan Danforth, Hillary Sardiñas, Riccardo Bommarco, Romina Rader, Elizabeth Elle, Jeroen Scheper, Luísa Carvalheiro, Neal Williams, Michael Garratt, Amber Sciligo, Andrea Holzschuh, Nancy Lee Adamson, Felix Herzog, Henrik Smith, Rufus Isaacs, John Ascher, Brad Howlett, Ingolf Steffan-Dewenter, Kristin Krewenka, András Báldi, Frank Jauker, Robbin Thorp, יעל מנדליק, Péter Batáry, Shalene Jha, Teja Tscharntke, Simon Potts, Faye Benjamin, Eva Knop, Jort Verhulst, Taylor Ricketts, Jacobus Biesmeijer, Violette Le Féon, Bernard Vaissière, Blandina Viana, Eleanor Blitzer, Emily May, Ruan Veldtman, Catrin Westphal, Mariëtte Brand, Mia Park, Kimiora Ward, Rachael Winfree, Vincent Bretagnolle, גדעון פיזנטי, David Kleijn, Lindsey Button, Menno Reemer, Ignasi Bartomeus, Daniel Cariveau, Verena Riedinger

There is compelling evidence that more diverse ecosystems deliver greater benefits to people, and these ecosystem services have become a key argument for biodiversity conservation. However, it is unclear how much biodiversity is needed to deliver ecosystem services in a cost-effective way. Here they show that, while the contribution of wild bees to crop production is significant, service delivery is restricted to a limited subset of all known bee species.

Apidologie

2014

Do wild bees complement honeybee pollination of confection sunflowers in Israel?

יעל מנדליק, Alexandra-Maria Klein, גדעון פיזנטי

Complementarity between species in the use of flower resources can enhance the pollination services of diverse pollinator communities. To test for complementarity, they studied fine-scale patterns of flower visitation and contribution to seed set of the three locally dominant bee species, visiting confection, sunflower in central Israel.