Influence of Food Quantity and Lead Exposure on Maturation in Daphnia magna; Evidence for a Trade-Off Mechanism

1995 ◽  
Vol 9 (2) ◽  
pp. 175 ◽  
Author(s):  
E. L. Enserink ◽  
M. J. J. Kerkhofs ◽  
C. A. M. Baltus ◽  
J. H. Koeman
Keyword(s):  
Daphnia Magna ◽  
Lead Exposure ◽  
Trade Off ◽  
Food Quantity ◽  
Influence Of Food

Food quantity shapes life history and survival strategies in Daphnia magna (Cladocera)

Hydrobiologia ◽  
2010 ◽  
Vol 643 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Barbara Pietrzak ◽  
Małgorzata Grzesiuk ◽  
Anna Bednarska
Keyword(s):  
Life History ◽  
Daphnia Magna ◽  
Survival Strategies ◽  
Food Quantity

scholarly journals Daphnia magna fitness during low food supply under different water temperature and brownification scenarios

2016 ◽  
Author(s):  
Andrea Gall ◽  
Martin J. Kainz ◽  
Serena Rasconi
Keyword(s):  
Water Temperature ◽  
Daphnia Magna ◽  
Current Knowledge ◽  
Physiological Activity ◽  
Somatic Growth ◽  
Low Carbon ◽  
Carbon Supply ◽  
Food Quantity ◽  
Higher Temperature ◽  
Outdoor Mesocosms

<p class="BodyA">Much of our current knowledge about non-limiting dietary carbon supply for herbivorous zooplankton is based on experimental evidence and typically conducted at ~1 mg C L<sup>-1</sup> and ~20°C. Here we ask how low supply of dietary carbon affects somatic growth, reproduction, and survival of <em>Daphnia magna</em> and test effects of higher water temperature (+3 °C relative to ambient) and brownification (3X higher than natural water color; both predicted effects of climate change) during fall cooling. We predicted that even at very low carbon supply (~5µg C L<sup>-1</sup>), higher water temperature and brownification will allow <em>D. magna</em> to increase its fitness. Neonates (&lt;24 h old) were incubated with lake seston for 4 weeks (October-November 2013) in experimental bottles submerged in outdoor mesocosms to explore effects of warmer and darker water. Higher temperature and brownification did not significantly affect food quality, as assessed by its fatty acid composition. <em>Daphnia</em> exposed to both increased temperature and brownification had highest somatic growth and were the only that reproduced, and higher temperature caused the highest <em>Daphnia</em> survival success. These results suggest that even under low temperature and thus lower physiological activity, low food quantity is more important than its quality for <em>D. magna</em> fitness.</p>

scholarly journals Maternal food quantity affects offspring feeding rate in Daphnia magna

2014 ◽  
Vol 10 (7) ◽  
pp. 20140356 ◽  
Author(s):  
Jennie S. Garbutt ◽  
Tom J. Little
Keyword(s):  
Life History ◽  
Daphnia Magna ◽  
Maternal Effect ◽  
Life History Traits ◽  
Feeding Rate ◽  
Maternal Nutrition ◽  
Maternal Diet ◽  
Resource Acquisition ◽  
Food Quantity ◽  
Trade Offs

Maternal effects have wide-ranging effects on life-history traits. Here, using the crustacean Daphnia magna , we document a new effect: maternal food quantity affects offspring feeding rate, with low quantities of food triggering mothers to produce slow-feeding offspring. Such a change in the rate of resource acquisition has broad implications for population growth or dynamics and for interactions with, for instance, predators and parasites. This maternal effect can also explain the previously puzzling situation that the offspring of well-fed mothers, despite being smaller, grow and reproduce better than the offspring of food-starved mothers. As an additional source of variation in resource acquisition, this maternal effect may also influence relationships between life-history traits, i.e. trade-offs, and thus constraints on adaptation. Maternal nutrition has long-lasting effects on health and particularly diet-related traits in humans; finding an effect of maternal nutrition on offspring feeding rate in Daphnia highlights the utility of this organism as a powerful experimental model for exploring the relationship between maternal diet and offspring fitness.

INFLUENCE OF FOOD LIMITATION ON THE EFFECTS OF FENVALERATE PULSE EXPOSURE ON THE LIFE HISTORY AND POPULATION GROWTH RATE OF DAPHNIA MAGNA

2005 ◽  
Vol 24 (9) ◽  
pp. 2254 ◽  
Author(s):  
Barry J. Pieters ◽  
Albrecht Paschke ◽  
Sebastián Reynaldi ◽  
Michiel H.S. Kraak ◽  
Wim Admiraal ◽  
...  
Keyword(s):  
Growth Rate ◽  
Life History ◽  
Population Growth ◽  
Daphnia Magna ◽  
Population Growth Rate ◽  
Food Limitation ◽  
Pulse Exposure ◽  
Influence Of Food
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