Seasonal strategies in the world’s oceans

Visser, André W.; Brun, Philipp; Chakraborty, Subhendu; Dencker, Tim Spaanheden; Denderen, P. Daniël van; Gemert, Rob van; Gréve, Hans van Someren; Heilmann, Irene; Holm, Mark Wejlemann; Jónasdóttir, Sigrún; Kenitz, Kasia M.; Kiørboe, Thomas; Lindegren, Martin; Mariani, Patrizio; Nielsen, Lasse Tor; Pančić, Marina; Payne, Mark; Pécuchet, Laurène; Schnedler‐Meyer, Nicolas Azaña; Thygesen, Uffe Høgsbro; Törnroos, Anna; Andersen, Ken Haste

doi:10.1016/j.pocean.2020.102466

Cited by 6 publications

(6 citation statements)

References 115 publications

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“…At the community level, we can quantify trait distributions such as the size spectrum, number of generalists versus specialists, or proportion of the individuals that are residents versus migrators (Visser et al., 2020). In this context, numerical, rather than categorical, traits and trade‐offs are especially useful.…”

Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

“…Co‐occurrence of certain environmental conditions with observed trait distributions imply that the former constrains the latter. For example, warmer waters are correlated with steeper size spectrum slopes as well as with species with opportunistic life histories (Beukhof et al., 2019; Visser et al., 2020; Yvon‐Durocher et al., 2011). As illustrated in Figure 1, changes in environmental conditions support different trait distributions at both the species and community levels.…”

Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

“…Thus, the fitness of a given population under new environmental conditions is a complex result of individuals' traits, the within‐population variability in trait expression, and how fit the new traits are within an altered community. The multifaceted and interdependent nature of population‐level response to environmental change can make prediction difficult; often, it is useful to zoom further out and describe traits at the community level – this approach captures interspecific interactions without explicitly describing them (Visser et al., 2020).…”

Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

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Merging trait‐based ecology and regime shift theory to anticipate community responses to warming

Weisberg,

Pershing,

Grigoratou

et al. 2023

Global Change Biology

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Anthropogenic warming is altering species abundance, distribution, physiology, and more. How changes observed at the species level alter emergent community properties is an active and urgent area of research. Trait‐based ecology and regime shift theory provide complementary ways to understand climate change impacts on communities, but these two bodies of work are only rarely integrated. Lack of integration handicaps our ability to understand community responses to warming, at a time when such understanding is critical. Therefore, we advocate for merging trait‐based ecology with regime shift theory. We propose a general set of principles to guide this merger and apply these principles to research on marine communities in the rapidly warming North Atlantic. In our example, combining trait distribution and regime shift analyses at the community level yields greater insight than either alone. Looking forward, we identify a clear need for expanding quantitative approaches to collecting and merging trait‐based and resilience metrics in order to advance our understanding of climate‐driven community change.

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Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

Section: A Principled Approach To Merging Trait‐based Ecology With Re...mentioning

confidence: 99%

See 1 more Smart Citation

Merging trait‐based ecology and regime shift theory to anticipate community responses to warming

Weisberg,

Pershing,

Grigoratou

et al. 2023

Global Change Biology

View full text Add to dashboard Cite

show abstract

“…As a consequence, seasonal patterns of zooplankton biomass and abundance change from year to year (Mackas et al 2012). These cycles are particularly pronounced in high-latitude ecosystems, where zooplankton employ a range of life-history strategies that vary with body size, trophic level, and life span (Visser et al 2020). The West Antarctic Peninsula (WAP) is one such seasonally productive ecosystem that has under gone considerable physical and ecological change over recent decades (Henley et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…seasonal vertical migration) and reproductive traits (e.g. spawn timing) are particularly important in high-latitude environments, where zooplankton adapt a range of strategies to endure winter (Visser et al 2020). These traits provide a useful perspective for interpreting seasonal patterns across the broad range of taxonomic groups that comprise zooplankton assemblages.…”

Section: Introductionmentioning

confidence: 99%

Seasonal and interannual changes in a coastal Antarctic zooplankton community

Conroy

Steinberg

Thomas

et al. 2023

Mar. Ecol. Prog. Ser.

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Seasonal fluctuations are key features of high-latitude marine ecosystems, where zooplankton exhibit a wide array of adaptations within their life cycles. Repeated, sub-seasonal sampling of Antarctic zooplankton is rare, even along the West Antarctic Peninsula (WAP), where multidecadal changes in sea ice and phytoplankton are well documented. We quantified zooplankton biomass, size structure, and composition at 2 coastal time-series stations in the northern WAP over 3 field seasons (November-March) with different sea-ice, temperature, and phytoplankton conditions. Seasonal peaks in zooplankton biomass followed weeks after phytoplankton blooms. Biomass of mesozooplankton (0.2-2 mm) was consistent and low, while high biomass of macrozooplankton (>2 mm) occasionally resulted in a size distribution dominated by krill and salps, which appears to be a characteristic phenomenon of the Southern Ocean. Zooplankton composition and size changed between years and from spring to summer as the water column warmed after sea-ice breakup. Seasonal succession was apparent typically in decreasing zooplankton size and a shift to species that are less dependent upon phytoplankton. Mean central abundance dates varied by 54 d across 14 taxa, and specific feeding preferences and life-history traits explained the different seasonal abundance patterns. In all 3 yr, the dominant euphausiid species switched from Euphausia superba in spring to Thysanoessa macrura in late summer. Various taxa shifted their phenology between years in response to the timing of sea-ice breakup and the onset of phytoplankton productivity, a level of natural environmental variability to which they appear resilient. Nevertheless, the limits to this resilience in response to climate change remain uncertain.

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Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring

Jónasdóttir

Naustvoll

Teglhus

et al. 2022

ICES Journal of Marine Science

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The copepod Calanus finmarchicus was investigated in four Subpolar Basins, Labrador, Irminger, Iceland, and Norwegian Seas, during spring, covering the time of ascent, grazing, and initiation of reproduction in the area. Lipid content, spawning activity, and stage composition and vital rates, such as egg and faecal pellet production were measured and linked to environmental parameters. Specific egg- and faecal pellet production rates varied with diatom biomass and were negatively correlated with temperature. Comparison of the various biological indicators revealed different life history traits C. finmarchicus has adopted in the different basins. In Labrador Sea, the females have invested in large eggs compared to the remaining basins. Labrador and Irminger Sea C. finmarchicus invest in size that we propose to be adaptation to cope with warmer overwintering habitats resulting in larger potential lipid storage capacity, while the Iceland and Norwegian Sea females can invest their remaining lipid storage in spring to fuel lipid-driven egg production. Grazing pressure on the phytoplankton community was estimated and compared between copepod and two dominating groups of protozooplankton; ciliates and heterotrophic dinoflagellates. Despite approximately the same biomass in the upper 100 m, the grazing impact of the protozoan grazers was an order of magnitude higher than the C. finmarchicus dominated mesozooplankton. This illustrates the importance to also include the smallest grazers when studying the spring bloom in high latitude marine ecosystems if the fate of the primary production should be fully understood.

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Seasonal strategies in the world’s oceans

Cited by 6 publications

References 115 publications

Merging trait‐based ecology and regime shift theory to anticipate community responses to warming

Merging trait‐based ecology and regime shift theory to anticipate community responses to warming

Seasonal and interannual changes in a coastal Antarctic zooplankton community

Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring

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