A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes
Calcium (Ca) is an important driver of community structure in freshwaters. We examined the combined effects of increased temperatures and variations in food quantity on the tolerance to low Ca of <i>Daphnia pulex</i>. The aim was to predict the impact of climate warming on this keystone...
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MDPI AG
2022-10-01
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| Online Access: | https://www.mdpi.com/2079-7737/11/10/1539 |
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| author | Eloísa Ramos-Rodríguez Carmen Pérez-Martínez José María Conde-Porcuna |
| author_facet | Eloísa Ramos-Rodríguez Carmen Pérez-Martínez José María Conde-Porcuna |
| author_sort | Eloísa Ramos-Rodríguez |
| collection | DOAJ |
| description | Calcium (Ca) is an important driver of community structure in freshwaters. We examined the combined effects of increased temperatures and variations in food quantity on the tolerance to low Ca of <i>Daphnia pulex</i>. The aim was to predict the impact of climate warming on this keystone zooplanktonic species in cold-climate lakes. We conducted a factorial life-history experiment in a clone of North American <i>Daphnia</i> cf. <i>pulex</i> to analyse the interaction effects of a temperature increase (17.5 °C–21 °C) within their physiological preferred range and expected by climate warming over the next few decades and a narrow Ca gradient (0.25–1.74 mg Ca L<sup>−1</sup>) under stressful vs. abundant food conditions. We found a striking positive synergistic effect of Ca and temperature on <i>D. pulex</i> reproduction at high food conditions. Although the increase in temperature to 21 °C greatly reduced survival, high energy allocation to reproduction at high food levels allowed the population to succeed in poor Ca (<0.25 mg Ca L<sup>−1</sup>). Results suggest that climate warming and higher food availability will make the populations of many cold and Ca-limited lakes more tolerant to low Ca levels with higher growth population rates, thereby altering zooplanktonic community structures and inducing potential cascading effects on the food web. |
| first_indexed | 2024-03-09T20:40:04Z |
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| issn | 2079-7737 |
| language | English |
| last_indexed | 2024-03-09T20:40:04Z |
| publishDate | 2022-10-01 |
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| series | Biology |
| spelling | doaj.art-a3c649b9eae94f299d20e250b8bdb1d02023-11-23T23:01:15ZengMDPI AGBiology2079-77372022-10-011110153910.3390/biology11101539A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water LakesEloísa Ramos-Rodríguez0Carmen Pérez-Martínez1José María Conde-Porcuna2Departamento de Ecología, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainDepartamento de Ecología, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainDepartamento de Ecología, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainCalcium (Ca) is an important driver of community structure in freshwaters. We examined the combined effects of increased temperatures and variations in food quantity on the tolerance to low Ca of <i>Daphnia pulex</i>. The aim was to predict the impact of climate warming on this keystone zooplanktonic species in cold-climate lakes. We conducted a factorial life-history experiment in a clone of North American <i>Daphnia</i> cf. <i>pulex</i> to analyse the interaction effects of a temperature increase (17.5 °C–21 °C) within their physiological preferred range and expected by climate warming over the next few decades and a narrow Ca gradient (0.25–1.74 mg Ca L<sup>−1</sup>) under stressful vs. abundant food conditions. We found a striking positive synergistic effect of Ca and temperature on <i>D. pulex</i> reproduction at high food conditions. Although the increase in temperature to 21 °C greatly reduced survival, high energy allocation to reproduction at high food levels allowed the population to succeed in poor Ca (<0.25 mg Ca L<sup>−1</sup>). Results suggest that climate warming and higher food availability will make the populations of many cold and Ca-limited lakes more tolerant to low Ca levels with higher growth population rates, thereby altering zooplanktonic community structures and inducing potential cascading effects on the food web.https://www.mdpi.com/2079-7737/11/10/1539calcium limitationcladocera<i>Daphnia pulex</i>food quantitywarming |
| spellingShingle | Eloísa Ramos-Rodríguez Carmen Pérez-Martínez José María Conde-Porcuna A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes Biology calcium limitation cladocera <i>Daphnia pulex</i> food quantity warming |
| title | A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes |
| title_full | A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes |
| title_fullStr | A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes |
| title_full_unstemmed | A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes |
| title_short | A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of <i>Daphnia</i> cf. <i>pulex</i> (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes |
| title_sort | non stressful temperature rise and greater food availability could increase tolerance to calcium limitation of i daphnia i cf i pulex i sensu hebert 1995 populations in cold soft water lakes |
| topic | calcium limitation cladocera <i>Daphnia pulex</i> food quantity warming |
| url | https://www.mdpi.com/2079-7737/11/10/1539 |
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