INVESTIGADORES
AIZEN Marcelo Adrian
artículos
Título:
Managed honeybees decrease pollination limitation in self-compatible but not in self-incompatible crops
Autor/es:
SÁEZ, AGUSTÍN; AGUILAR, RAMIRO; ASHWORTH, LORENA; GLEISER, GABRIELA; MORALES, CAROLINA L.; TRAVESET, ANNA; AIZEN, MARCELO A.
Revista:
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON. SERIES B: BIOLOGICAL SCIENCES.
Editorial:
ROYAL SOC
Referencias:
Año: 2022 vol. 289
ISSN:
0962-8452
Resumen:
Modern agriculture is becoming increasingly pollinator-dependent. However,the global stock of domesticated honeybees is growing at a slower rate than itsdemand, while wild bees are declining worldwide. This uneven scenario ofhigh pollinator demand and low pollinator availability can translate intoincreasing pollination limitation, reducing the yield of pollinator-dependentcrops. However, overall assessments of crop pollination limitation and the fac-tors determining its magnitude are missing. Based on 52 published studiesincluding 30 crops, we conducted a meta-analysis comparing crop yield inpollen-supplemented versus open-pollinated flowers. We assessed the overallmagnitude of pollination limitation and whether this magnitude was influ-enced by (i) the presence/absence of managed honeybees, (ii) cropcompatibility system (i.e. self-compatible/self-incompatible) and (iii) the inter-action between these two factors. Overall, pollen supplementation increasedyield by approximately 34%, indicating sizable pollination limitation. Deploy-ment of managed honeybees and self-compatibility were associated withlower pollination limitation. Particularly, active honeybee managementdecreased pollination limitation among self-compatible but apparently notamong self-incompatible crops. These findings indicate that current pollina-tion regimes are, in general, inadequate to maximize crop yield, even whenincluding managed honeybees, and stress the need of transforming thepollination management paradigm of agricultural landscapes.