Experiments on invertebrate predation on cladocerans and its relationships with lake data

Ferreira, Tânia Cristina dos Santos; Arcifa, Marlene Sofía

doi:10.4081/jlimnol.2021.1987

Cited by 2 publications

(3 citation statements)

References 41 publications

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“…The low abundance of D. birgei in the lake could be mostly attributed to predation by Chaoborus brasiliensis Theobald than to competition with other cladoceran species. Chaoborus larvae prey on juveniles and adults of D. birgei and, therefore, has a greater influence on its population (Ferreira & Arcifa, 2022). The occurrence of D. birgei in the littoral zone of the lake, where the diversity of resources tends to be higher than in the limnetic zone, besides higher temperatures and lower predation (Arcifa et al, 2016), may have contributed to the species permanence in LMA, although in low densities.…”

Section: Linking Experiments and Fieldmentioning

confidence: 99%

“…Competition between C. richardi , D. birgei , and D. gessneri is more difficult to report in LMA, since the abundance of all species seems to be primarily controlled by invertebrate predation (Ferreira & Arcifa, 2022). Food limitation is seldom recorded in the lake, being restricted to short periods during the cool season in the limnetic zone (Ferreira et al, 2018).…”

Section: Linking Experiments and Fieldmentioning

confidence: 99%

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Competition and the life table of cladocerans from a tropical shallow lake

Ferreira

Arcifa

2023

Austral Ecology

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Laboratory experiments were carried out to investigate the influence of competition for food, with different combinations of species, using life table data. In Experiment 1, the cultivated chlorophycean Desmodesmus spinosus (Chodat) Hegewald, at a low concentration (0.25 mg C L−1), was used to feed the cladocerans Daphnia gessneri Herbst and Diaphanosoma birgei Kořínek; in Experiment 2, the same alga was used in an even lower concentration (0.15 mg C L−1) to feed three species, D. gessneri, D. birgei, and Ceriodaphnia richardi Sars, in pairs. Three treatments were set up in Experiment 1 (four replicates each): a. control with the species alone; and b. in shared cultures. For Experiment 2, six treatments were set up (three replicates each): a. control with the species alone; and b. pairs of species in shared cultures. Competition for the chlorophycean occurred in Experiment 1, when D. birgei significantly reduced the average life span of D. gessneri, and D. gessneri significantly reduced the gross and net reproductive rates of D. birgei, despite the greater efficiency in all parameters, of survival and reproduction, of the second species. D. birgei was the only species that reproduced under extreme food limitation; in Experiment 2, despite gross and net reproductive rates, generation time, population growth rate and reproductive effort negatively influenced by C. richardi and D. gessneri, in addition to the average life span, also affected by D. gessneri. D. birgei was competitively superior to the other two species being able to reproduce and grow at very low food concentrations.

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Section: Linking Experiments and Fieldmentioning

confidence: 99%

Section: Linking Experiments and Fieldmentioning

confidence: 99%

Competition and the life table of cladocerans from a tropical shallow lake

Ferreira

Arcifa

2023

Austral Ecology

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“…It is possible that C. richardi is less sensitive to biotic and/or abiotic factors in the lake than D. birgei due to its reproductive and behavioral strategies [53], resulting in a higher density [59]. Another fact to consider is that D. birgei is preyed on by the main invertebrate predator, Chaoborus larvae, which consumes young and adult individuals at higher rates than C. richardi, influencing its population dynamics in the lake [60].…”

Section: Experiments 2: Competition Between C Richardi and D Birgei F...mentioning

confidence: 99%

Competition of Cladocerans for Natural Seston from a Tropical Shallow Lake

Ferreira,

Silva,

Arcifa

2023

Water

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The planktonic cladocerans Ceriodaphnia richardi, Daphnia gessneri, and Daphnia birgei inhabit the limnetic and littoral zones of Lake Monte Alegre, where the former species tends to be abundant. Laboratory experiments were carried out to investigate the competition for seston of the limnetic and littoral zones in cladocerans using life table data. In experiment 1, the species C. richardi and D. gessneri were fed seston from the limnetic zone (1–1.29 mg C L−1); in experiment 2, the species C. richardi and D. birgei were fed seston from the littoral zone. Despite the relatively high concentration of sestonic algae (0.96–1 mg C L−1), with predominance of nanoplankton, C. richardi outcompeted D. gessneri in the experiment with the limnetic seston. The species C. richardi and D. birgei benefited from the presence of each other in the experiment with littoral seston, where nanoplankton predominated, with increases in some parameters of the life table. D. birgei, however, showed better reproductive performance than C. richardi. A comparison between the results of the experiments suggests that the seston of the limnetic zone, in terms of quantity and quality, is better for C. richardi than the littoral seston.

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Experiments on invertebrate predation on cladocerans and its relationships with lake data

Cited by 2 publications

References 41 publications

Competition and the life table of cladocerans from a tropical shallow lake

Competition and the life table of cladocerans from a tropical shallow lake

Competition of Cladocerans for Natural Seston from a Tropical Shallow Lake

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