Rising temperature and marine plankton community dynamics: Is warming bad?

Sarker, Subrata; Yadav, Atul Kumar; Akter, Morgina; Hossain, M. Shahadat; Chowdhury, Sayedur Rahman; Kabir, Md. Alamgir; Sharifuzzaman, S.M.

doi:10.1016/j.ecocom.2020.100857

Cited by 20 publications

(15 citation statements)

References 69 publications

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“…Intuitively, the phase sensitivity of tipping from predator-prey oscillations arises because a given drop in prey resources has distinctively different effects when applied during the phases of the cycle with the fastest growth and the fastest decline of prey. Both the RMA and May models have been used to study predatorprey interactions in a number of natural systems [40][41][42]. Here, we use realistic parameter values for the Canada lynx and snowshoe hare system [43,44], together with real climate records from various communities in the boreal and deciduous-boreal forest [45].…”

Section: Introductionmentioning

confidence: 99%

Phase tipping: how cyclic ecosystems respond to contemporary climate

2021

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We identify the phase of a cycle as a new critical factor for tipping points (critical transitions) in cyclic systems subject to time-varying external conditions. As an example, we consider how contemporary climate variability induces tipping from a predator–prey cycle to extinction in two paradigmatic predator–prey models with an Allee effect. Our analysis of these examples uncovers a counterintuitive behaviour, which we call phase tipping or P-tipping , where tipping to extinction occurs only from certain phases of the cycle. To explain this behaviour, we combine global dynamics with set theory and introduce the concept of partial basin instability for attracting limit cycles. This concept provides a general framework to analyse and identify easily testable criteria for the occurrence of phase tipping in externally forced systems, and can be extended to more complicated attractors.

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Section: Introductionmentioning

confidence: 99%

Phase tipping: how cyclic ecosystems respond to contemporary climate

2021

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“…We also found zooplankton as an important driver of phytoplankton dynamics. Along with nutrients and zooplankton, temperature and salinity also influence the phytoplankton by maintaining nutritional properties and metabolic activities in microalgae (Hemaiswarya et al., 2011; Sarker, Yadav, Akter, et al., 2020). In addition, advection of new water masses is caused by a change in temperature and salinity which can prompt species succession (Mutshinda et al., 2013).…”

Section: Discussionmentioning

confidence: 99%

Phytoplankton ecology in different coastal habitats along the northern Bay of Bengal

et al. 2021

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Knowledge on phytoplankton dynamics is important to understand the trophodynamics of aquatic ecosystems. But, the topic remains poorly studied in the context of tropical coastal habitats. The present study describes the community structure and drivers of phytoplankton in different coastal habitats along the northern Bay of Bengal. Data were collected on phytoplankton, zooplankton and a range of environmental variables from the estuarine, mangroves and coral habitats of Bangladesh during dry season from October 2020 to March 2021. Our study found that eco‐hydrological characteristics of the estuarine, mangroves and coral habitats differ from each other, although phytoplankton assemblages in these habitats commonly dominated by diatoms. In the estuary, the main diatom taxa included Coscinodiscus, whereas Ceratium and Chaetoceros were dominant in the coral habitat, and Coscinodiscus and Chaetoceros in the mangroves habitat. The concentration of micronutrients (silicate, nitrate and phosphate) was the most important driver of phytoplankton among all habitats. Zooplankton had a vital role in regulating the phytoplankton community composition in the coral habitat. These results suggest that the phytoplankton dynamics across tropical coastal habitats is largely driven by nutrients, which, when compared, have less influence on the growth of phytoplankton in temperate region.

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“…Under climate change, numerical models predict a severe decline of phytoplankton production due to rising CO 2 (Bopp et al, 2004(Bopp et al, , 2005. Furthermore, numerical simulations and observations suggested that increasing temperatures reduce plankton biomass, change the turnover time and break the stable coexistence of phytoplankton and zooplankton (Sarker et al, 2018(Sarker et al, , 2020. Sekerci and Petrovskii (2015) found that warming-induced oxygen depletion could cause plankton species extinction.…”

Section: Phytoplanktonmentioning

confidence: 99%

Toward Improved Model Capacities for Assessment of Climate Impacts on Coastal Bentho-Pelagic Food Webs and Ecosystem Services

et al. 2021

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Global climate change is a key driver of change in coastal waters with clear effects on biological communities and marine ecosystems. Human activities in combination with climate change exert a tremendous pressure on marine ecosystems and threaten their integrity, structure, and functioning. The protection of these ecosystems is a major target of the 14th United Nations sustainable development goal “Conserve and sustainably use the oceans, seas and marine resources for sustainable development.” However, due to the complexity of processes and interactions of stressors, the status assessment of ecosystems remains a challenge. Holistic food web models, including biological and environmental data, could provide a suitable basis to assess ecosystem health. Here, we review climate change impacts on different trophic levels of coastal ecosystems ranging from plankton to ecologically and economically important fish and shellfish species. Furthermore, we show different food web model approaches, their advantages and limitations. To effectively manage coastal ecosystems, we need both a detailed knowledge base of each trophic level and a holistic modeling approach for assessment and prediction of future scenarios on food web-scales. A new model approach with a seamless coupling of physical ocean models and food web models could provide a future tool for guiding ecosystem-based management.

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Rising temperature and marine plankton community dynamics: Is warming bad?

Cited by 20 publications

References 69 publications

Phase tipping: how cyclic ecosystems respond to contemporary climate

Phase tipping: how cyclic ecosystems respond to contemporary climate

Phytoplankton ecology in different coastal habitats along the northern Bay of Bengal

Toward Improved Model Capacities for Assessment of Climate Impacts on Coastal Bentho-Pelagic Food Webs and Ecosystem Services

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