The effects of temperature on the behaviour of the Antarctic sea star Odontaster validus

Kidawa, Anna; Potocka, Marta; Janecki, Tomasz

doi:10.2478/v10183-010-0003-3

Cited by 25 publications

(20 citation statements)

References 33 publications

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“…Populations from the more thermally variable sub-Antarctic island of South Georgia (−1 to + 5°C; Barnes et al 2006) had a greater physiological plasticity of mitochondrial densities and key enzymes, in response to long-term elevated temperature than those from Marguerite Bay ), but reduced acute temperature limits. The acute summer temperature limits of righting and feeding in O. validus at Admiralty Bay, King George Island, on the north-western Antarctic Peninsula (62°S) were also lower than those of Rothera and McMurdo populations (4 to 5°C; Kidawa et al 2010). Methodological differences between Kidawa et al (2010) and both Peck et al (2008) and the current study make it difficult to compare results, as the rate of warming and the magnitude and duration of exposure to elevated temperature all markedly affect the thermal limits of ectotherms (Terblanche et al 2007, Nguyen et al 2011).…”

Section: Geographic Differencesmentioning

confidence: 82%

“…The acute summer temperature limits of righting and feeding in O. validus at Admiralty Bay, King George Island, on the north-western Antarctic Peninsula (62°S) were also lower than those of Rothera and McMurdo populations (4 to 5°C; Kidawa et al 2010). Methodological differences between Kidawa et al (2010) and both Peck et al (2008) and the current study make it difficult to compare results, as the rate of warming and the magnitude and duration of exposure to elevated temperature all markedly affect the thermal limits of ectotherms (Terblanche et al 2007, Nguyen et al 2011). In our study there was also an indication that at 11°C, close to the upper limit for righting in Odo ntaster validus, there was a trade-off between turning speed and turning ability between the 2 locations.…”

Section: Geographic Differencesmentioning

confidence: 82%

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Spatial and temporal variation in the heat tolerance limits of two abundant Southern Ocean invertebrates

Morley¹,

Martin²,

Bates³

et al. 2012

Mar. Ecol. Prog. Ser.

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While, in lower latitudes, population-level differences in heat tolerance are linked to temperature variability, in the Southern Ocean remarkably stable year-round temperatures prevail. Temporal variation in the physiology of Antarctic ectotherms is therefore thought to be driven by the intense seasonality in primary productivity. Here we tested for differences in the acute upper temperature limits (lethal and activity) of 2 Antarctic marine invertebrates (the omnivorous starfish Odontaster validus and the filter-feeding clam Laternula elliptica) across latitude, seasons and years. Acute thermal responses in the starfish (righting and feeding) and clam (burrowing) differed between populations collected at 77°S (McMurdo Sound) and 67°S (Marguerite Bay). Both species displayed significantly higher temperature performance at 67°S, where seawater can reach a maximum of +1.8°C in summer versus −0.5°C at 77°S, showing that even the narrow spatial and temporal variation in environmental temperature in Antarctica is biologically meaningful to these stenothermal invertebrates. Temporal comparisons of heat tolerance also demonstrated seasonal differences in acute upper limits for survival that were consistent with physiological acclimatisation: lethal limits were lower in winter than summer and higher in warm years than cool years. However, clams had greater inter-annual variation of temperature limits than was observed for starfish, suggesting that variation in food availability is also an important factor, particularly for primary consumers. Teasing out the interaction of multiple factors on thermal tolerance will be important for refining species-specific predictions of climate change impacts.

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Section: Geographic Differencesmentioning

confidence: 82%

Section: Geographic Differencesmentioning

confidence: 82%

Spatial and temporal variation in the heat tolerance limits of two abundant Southern Ocean invertebrates

Morley¹,

Martin²,

Bates³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…V Mov increased with temperature at pH T 7.9 and pH T 7.7. Enhanced locomotion and activity have been observed in response to warming (Kidawa, Potocka, & Janecki, 2010;Pewsey, 2004;Young, Peck, & Matheson, 2006) and acidification (Cripps et al, 2011;Manríquez et al, 2013;Nilsson et al, 2012;Spady, Watson, Chase, & Munday, 2014), but there is a poor understanding about the effects of combined stressors. As with the echinoid Loxechinus albus (Manríquez et al, 2017), our results revealed positive synergistic effects of OW and OA, since sea urchins were driven to adopt a riskier behavior by moving faster despite the hydrodynamic stress.…”

Section: Escaping Strategymentioning

confidence: 99%

Ocean warming and acidification alter the behavioral response to flow of the sea urchin Paracentrotus lividus

Cohen‐Rengifo

Agüera

Bouma

et al. 2019

Ecology and Evolution

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Ocean warming (OW) and acidification (OA) are intensively investigated as they pose major threats to marine organism. However, little effort is dedicated to another collateral climate change stressor, the increased frequency, and intensity of storm events, here referred to as intensified hydrodynamics. A 2‐month experiment was performed to identify how OW and OA (temperature: 21°C; pHT: 7.7, 7.4; control: 17°C‐pHT7.9) affect the resistance to hydrodynamics in the sea urchin Paracentrotus lividus using an integrative approach that includes physiology, biomechanics, and behavior. Biomechanics was studied under both no‐flow condition at the tube foot (TF) scale and flow condition at the individual scale. For the former, TF disk adhesive properties (attachment strength, tenacity) and TF stem mechanical properties (breaking force, extensibility, tensile strength, stiffness, toughness) were evaluated. For the latter, resistance to flow was addressed as the flow velocity at which individuals detached. Under near‐ and far‐future OW and OA, individuals fully balanced their acid‐base status, but skeletal growth was halved. TF adhesive properties were not affected by treatments. Compared to the control, mechanical properties were in general improved under pHT7.7 while in the extreme treatment (21°C‐pHT7.4) breaking force was diminished. Three behavioral strategies were implemented by sea urchins and acted together to cope with flow: improving TF attachment, streamlining, and escaping. Behavioral responses varied according to treatment and flow velocity. For instance, individuals at 21°C‐pHT7.4 increased the density of attached TF at slow flows or controlled TF detachment at fast flows to compensate for weakened TF mechanical properties. They also showed an absence of streamlining favoring an escaping behavior as they ventured in a riskier faster movement at slow flows. At faster flows, the effects of OW and OA were detrimental causing earlier dislodgment. These plastic behaviors reflect a potential scope for acclimation in the field, where this species already experiences diel temperature and pH fluctuations.

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“…For example predation rate of the polar starfish Odontaster validus is compromised by high‐temperature stress (Peck et al . ; Kidawa, Potocka & Janecki ). Temperate regions routinely undergo wide temperature oscillations, due to seasonal cycles and temperature anomalies (Miller et al .…”

Section: Introductionmentioning

confidence: 99%

“…Duggins 1983;Lafferty 2004;Eckert 2007;Bonaviri et al 2009;Gianguzza et al 2009Gianguzza et al , 2016Rassweiler, Schmitt & Holbrook 2010;Lane 2012;Urriago, Himmelman & Gaymer 2012;Galasso et al 2015) that may be modified by temperature variations. For example predation rate of the polar starfish Odontaster validus is compromised by high-temperature stress (Peck et al 2008;Kidawa, Potocka & Janecki 2010). Temperate regions routinely undergo wide temperature oscillations, due to seasonal cycles and temperature anomalies (Miller et al 1994;Hobday et al 2016), such as during ENSO events.…”

Section: Introductionmentioning

confidence: 99%

Warmer temperatures reduce the influence of an important keystone predator

Bonaviri

Graham

Gianguzza

et al. 2017

Journal of Animal Ecology

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Predator-prey interactions may be strongly influenced by temperature variations in marine ecosystems. Consequently, climate change may alter the importance of predators with repercussions for ecosystem functioning and structure. In North-eastern Pacific kelp forests, the starfish Pycnopodia helianthoides is known to be an important predator of the purple sea urchin Strongylocentrotus purpuratus. Here we investigated the influence of water temperature on this predator-prey interaction by: (i) assessing the spatial distribution and temporal dynamics of both species across a temperature gradient in the northern Channel Islands, California, and (ii) investigating how the feeding rate of P. helianthoides on S. purpuratus is affected by temperature in laboratory tests. On average, at sites where mean annual temperatures were <14 °C, P. helianthoides were common, S. purpuratus was rare and kelp was persistent, whereas where mean annual temperatures exceeded 14 °C, P. helianthoides and kelp were rare and S. purpuratus abundant. Temperature was found to be the primary environmental factor influencing P. helianthoides abundance, and in turn P. helianthoides was the primary determinant of S. purpuratus abundance. In the laboratory, temperatures >16 °C (equivalent to summer temperatures at sites where P. helianthoides were rare) reduced predation rates regardless of predator and prey sizes, although larger sea urchins were consumed only by large starfishes. These results clearly demonstrate that the effect of P. helianthoides on S. purpuratus is strongly mediated by temperature, and that the local abundance and predation rate of P. helianthoides on sea urchins will likely decrease with future warming. A reduction in top-down control on sea urchins, combined with other expected impacts of climate change on kelp, poses significant risks for the persistence of kelp forests in the future.

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The effects of temperature on the behaviour of the Antarctic sea star Odontaster validus

Cited by 25 publications

References 33 publications

Spatial and temporal variation in the heat tolerance limits of two abundant Southern Ocean invertebrates

Spatial and temporal variation in the heat tolerance limits of two abundant Southern Ocean invertebrates

Ocean warming and acidification alter the behavioral response to flow of the sea urchin Paracentrotus lividus

Warmer temperatures reduce the influence of an important keystone predator

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