Reacción a "Agricultural production losses due to insufficient pollination have decreased thanks to honeybees"

My overall impression is that this is an interesting, timely, and methodologically sound study, based on a comprehensive review of experimental studies on pollination limitation in pollinator-dependent crops. The results suggest that pollination limitation in the crops analyzed has decreased over the past few decades and that this trend is primarily associated with the use of managed pollinators. In my view, the data reasonably support this conclusion.

However, I believe it is important to avoid certain oversimplified interpretations that might arise from these results (and I emphasize this because I believe it is important and is something that concerns me greatly and that I have been working on lately: the communication of scientific information to society). The study assesses whether pollen supplementation increases agricultural production—that is, whether there is a pollination deficit that reduces crop yields. It is not directly measuring the abundance or diversity of wild pollinators, the resilience of pollination networks, or the conservation status of these organisms. Therefore, the absence of a global agricultural yield crisis associated with pollination should not be interpreted as the absence of ecological impact on pollinators or on the ecosystems of which they are a part (I am concerned about the use of partial and biased information that often occurs).

It is also worth noting that the lower constraints observed in systems with managed pollinators could be related not only to greater availability of beehives or other commercial pollinators, but also to other factors that typically accompany more intensive and technified agricultural systems, such as the use of improved crop varieties, changes in agronomic practices, or improvements in crop management. And I believe it is also important to make this clear, as the study in question has not taken it into account.

In any case, I believe the study provides interesting evidence that agricultural systems have managed to partially offset pollination deficits through various management strategies. At the same time, I share the concern expressed by the authors regarding the heavy reliance on a few managed species, especially the honeybee. From an ecological and agronomic perspective, concentrating a significant portion of agricultural production on a very small number of pollinator species can increase vulnerability to future diseases, pests, or environmental disturbances. And these problems are all too well known.

I consider this to be a relevant and well-conducted study, but its results should be interpreted primarily in terms of agricultural production and not as evidence that the global problem of pollinator conservation (which has many more “functions” than just producing food through agriculture) has disappeared.