Projects per year
season). However, using case studies in the Atlantic Ocean and Mediterranean Sea, we show that, depending on environmental conditions, calcifying haploid coccolithophores
can be significant contributors to the coccolithophore standing stock (up to ≈ 30 %). Furthermore, using hypervolumes to quantify the niche of coccolithophores, we illustrate that the haploid and diploid life cycle phases inhabit contrasting niches and that on average this allows coccolithophores to expand their niche by ≈ 18.8 %, with a range of 3 %–76 % for individual species.
Our results highlight that future coccolithophore research should consider both life cycle stages, as omission of the haploid life cycle phase in current research limits our understanding of coccolithophore ecology. Our results furthermore suggest a different response to nutrient limitation and stratification, which may be of relevance for further climate scenarios.
Our compilation highlights the spatial and temporal sparsity of SEM measurements and the need for new molecular techniques to identify uncalcified haploid coccolithophores.
Our work also emphasizes the need for further work on the carbonate chemistry niche of the coccolithophore life cycle.
Determining the marine ecosystem response to global change: Lessons from the past using a new Earth system model
1/10/12 → 31/08/18