Energy metabolism, heart rate and physiological differentiation in the pulmonate gastropod Cornu aspersum

Bruning, Andrea; González, Avia; Gaitán‐Espitía, Juan Diego; Bartheld, José Luis; Toader-Williams, Adrian; Mondaca, Fredy; Nespolo, Roberto F.

doi:10.1093/mollus/eyt021

Cited by 18 publications

(9 citation statements)

References 31 publications

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“…As well as interspecific differences, there is intraspecific variation related to climate. For example, Cornu aspersum from high latitude sites had higher respiration rates and, thus, higher metabolic activity than conspecifics from lower latitudes sites which was interpreted as “metabolic cold adaptation” (Bruning et al, ). Oxygen consumption, frequently used as a proxy for metabolism, may define the transition from one metabolic state to another.…”

Section: Behavioral and Physiological Adaptationsmentioning

confidence: 99%

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Schweizer

Triebskorn

Köhler

2019

Ecology and Evolution

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Terrestrial gastropods do not only inhabit humid and cool environments but also habitat in which hot and dry conditions prevail. Snail species that are able to cope with such climatic conditions are thus expected to having developed multifaceted strategies and mechanisms to ensure their survival and reproduction under heat and desiccation stress. This review paper aims to provide an integrative overview of the numerous adaptation strategies terrestrial snails have evolved to persist in hot and dry environments as well as their mutual interconnections and feedbacks, but also to outline research gaps and questions that remained unanswered. We extracted relevant information from more than 140 publications in order to show how biochemical, cellular, physiological, morphological, ecological, thermodynamic, and evolutionary parameters contribute to provide an overall picture of this classical example in stress ecology. These mechanisms range from behavioral and metabolic adaptations, including estivation, to the induction of chaperones and antioxidant enzymes, mucocyte and digestive gland cell responses and the modification and frequency of morphological features, particularly shell pigmentation. In this context, thermodynamic constraints call for processes of complex adaptation at varying levels of biological organization that are mutually interwoven. We were able to assemble extensive, mostly narrowly focused information from the literature into a web of network parameters, showing that future work on this subject requires multicausal thinking to account for the complexity of relationships involved in snails' adaptation to insolation, heat, and drought.

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Section: Behavioral and Physiological Adaptationsmentioning

confidence: 99%

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Schweizer

Triebskorn

Köhler

2019

Ecology and Evolution

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“…Here we used heart rate (HR; cardiac activity) and roll-over speed (RS; the speed at which animals change from the inverse to the upright position) as proxies of the relationship between organismal performance and T a (Bruning et al, 2013;Gaitán-Espitia et al, 2013;Schulte et al, 2011). A total of 210 adult individuals (30 crabs for each population) were selected for analyses of thermal sensitivities (TPCs).…”

Section: Thermal Performance Curvesmentioning

confidence: 99%

Geographic variation in thermal physiological performance of the intertidal crabPetrolisthes violaceusalong a latitudinal gradient

Gaitán‐Espitía

Bacigalupe

Opitz

et al. 2014

Journal of Experimental Biology

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Environmental temperature has profound effects on the biological performance and biogeographical distribution of ectothermic species. Variation of this abiotic factor across geographic gradients is expected to produce physiological differentiation and local adaptation of natural populations depending on their thermal tolerances and physiological sensitivities. Here, we studied geographic variation in whole-organism thermal physiology of seven populations of the porcelain crab Petrolisthes violaceus across a latitudinal gradient of 3000 km, characterized by a cline of thermal conditions. Our study found that populations of P. violaceus show no differences in the limits of their thermal performance curves and demonstrate a negative correlation of their optimal temperatures with latitude. Additionally, our findings show that high-latitude populations of P. violaceus exhibit broader thermal tolerances, which is consistent with the climatic variability hypothesis. Interestingly, under a future scenario of warming oceans, the thermal safety margins of P. violaceus indicate that lower latitude populations can physiologically tolerate the ocean-warming scenarios projected by the IPCC for the end of the twenty-first century.

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“…The results of the present investigation revealed differences in the heartbeat rates (or cardiac activity) of the exotic snail Pomacea canaliculata, tested under five fixed temperatures, ranged from 15 ºC to 45ºC. The heartbeat rate like some other techniques (for example respirometry) is a simplified measure of the metabolic rate of the invertebrate animals (20,21,23,26).The majority of the studies use these experimental techniques under laboratory conditions due to difficulties and complexity of the field measurements. But, in fact, laboratory data usually doesn't reflect the field data (18,20,27).…”

Section: Discussionmentioning

confidence: 79%

Temperature Impacts on the Cardiac Activity of the Snail Pomacea canaliculata from Shatt Al-Arab Region, Basrah, Iraq

Malik

2020

Baghdad Sci.J

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The effects of temperature on an exotic aquatic snail Pomacea canaliculata (Lamarck, 1819) collected from the Shatt Al-Arab intertidal zone were investigated. A series of laboratory experiments were conducted during the summer period of 2017. Individuals of new born snails hatched in the laboratory from adult snails were collected from Shatt Al-Arab intertidal zone, and subjected to five fixed temperatures: 15, 25, 35, 40 and 45 Cº, after short term thermal acclimation. The heartbeats (HB) were counted at each temperature level. The results showed significant direct increase of HB from 15 Cº (19.8 HB/min) up to 25 Cº (76 HB/min) (P<0.05) as well as from 25 Cº to 35 Cº (93 HB/min). At 40 Cº the snail HB shows only slight insignificant increase (79 HB/ min). At 45 ºC the HB became irregular and showed negative thermo cardiac activity (HB dropped to 50.4/min). The minimum HB rate of 11/min was recorded at 15 Cº and the maximum value of 119 HB/min was recorded at 40 Cº. The study concluded that P. canaliculata can be highly stressed when exposed to extreme temperature experienced during the prolonged summer months and will no longer tolerate living in the intertidal zone of Shatt Al-Arab.

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Energy metabolism, heart rate and physiological differentiation in the pulmonate gastropod Cornu aspersum

Cited by 18 publications

References 31 publications

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Geographic variation in thermal physiological performance of the intertidal crabPetrolisthes violaceusalong a latitudinal gradient

Temperature Impacts on the Cardiac Activity of the Snail Pomacea canaliculata from Shatt Al-Arab Region, Basrah, Iraq

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