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Amarasinghe, Punsara; Boersma, Maarten; Vijverberg, J.

doi:10.1023/a:1003087815861

Cited by 35 publications

(3 citation statements)

References 28 publications

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“…Maximum r previously obtained for D. dubium on Chlorella (0.3 at 298C) is lower than in our study (0.6 at 308C). Amarasinghe et al (1997) found a maximum r of D. excisum at 32.58C of only 0.15, compared to 0.8 in our study. On the other hand, population growth rate of D. excisum in a monospecific microcosm culture at 25-298C which was fertilized, inoculated with natural phytoplankton assemblages, and included bacteria was 0.75 d 21 (Pagano et al 2000).…”

Section: Genetic Variation In Tpcscontrasting

confidence: 88%

“…Most studies focus on the "commonly-experienced temperatures" (Sarma et al 2005) which are useful for estimating secondary production in the field but usually do not encompass the optimum (Angilletta 2009). Previous work indicates T o of Diaphanosoma to be above 308C (Amarasinghe et al 1997;Han et al 2011), whereas they are well below 308C for Daphnia (Goss and Bunting 1983;Mitchell and Lampert 2000;Lennon et al 2001).…”

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confidence: 87%

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Thermal reaction norms of a subtropical and a tropical species of Diaphanosoma (cladocera) explain their distribution

Pajk

Zhang

Han

et al. 2017

Limnology & Oceanography

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Species distribution boundaries are often associated with aspects of climate and modified by competitive interactions. In the tropical region, Diaphanosoma is the most diverse genus of Cladocera. Diaphanosoma dubium is widely distributed in China, whereas the tropical Diaphanosoma excisum is restricted to the islands off the south China coast. The mean temperature of the coldest month at the northern limit of its distribution is 15°C. We studied the effect of temperature (10–40°C) on life history traits of clones from 16 populations of D. dubium and D. excisum in life‐table experiments in order to determine if their thermal performance curves (TPCs) explain their distribution and to estimate the extent and mode of genetic variation in their TPCs. Our results show that both species have higher optimum temperatures (To ∼ 33°C), critical thermal minimum (CTmin = 10–15°C), and maximum (CTmax = 39–40°C) than temperate cladocerans. Clones of D. excisum had narrower TPCs and higher To than D. dubium clones, in accordance with predictions based on changes of temperature distributions with latitude. Significant levels of genetic variation in TPCs were present in both species. D. excisum had higher fitness than D. dubium at all temperatures above 15°C. However, at 15°C and below, D. dubium fitness was higher. Negative r at 15°C and below in combination with competition with the more cold‐adapted D. dubium exclude D. excisum from mainland China. TPCs of interacting species may be the basis of predicting future species distributions as temperature increases change the balance of biotic interactions.

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Section: Genetic Variation In Tpcscontrasting

confidence: 88%

mentioning

confidence: 87%

Thermal reaction norms of a subtropical and a tropical species of Diaphanosoma (cladocera) explain their distribution

Pajk

Zhang

Han

et al. 2017

Limnology & Oceanography

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“…Sterner and Schulz (1998) pioneered the integration of food quantity and quality aspect in regulating zooplankton nutrition, showing that zooplankton growth rate in response to food quantity differs under distinct scenarios of food quality. To date, studies on the interactive effects of food quantity and quality have been mostly performed with freshwater zooplankton (e.g., Amarasinghe et al, 1997;Boersma and Kreutzer, 2002;Schälicke et al, 2019), while little is known for marine zooplankton (but see Ambler, 1986;Koski et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Food Quantity and Quality Interactions at Phytoplankton–Zooplankton Interface: Chemical and Reproductive Responses in a Calanoid Copepod

Sommer

2020

Front. Mar. Sci.

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Marine food webs form the major component of the biological pump and play a central role in the global carbon (C) cycle. Understanding the response of particular processes in marine food webs to changing environments is a prerequisite to predict changes in ecological functioning in the future ocean. Here, we experimentally assessed the effects of nitrogen:phosphorus (N:P) supply ratios (the molar ratios 10:1, 24:1, and 63:1) on elemental and biochemical quality of marine phytoplankton Rhodomonas sp., and the interactions between food quantity and quality on stoichiometric C:N:P, fatty acids (FAs) and reproductions in copepods Acartia tonsa. Overall, the stoichiometry of A. tonsa was to some extent homeostatic in response to the changing algal C:N and C:P ratios, with significant changes in C:N ratios of A. tonsa observed, especially under higher food quantities. The relative gross growth efficiencies (GGEs) for C and N (and P) were analyzed, revealing that copepods may achieve homeostasis by lowering the GGE for C while increasing it for the limiting nutrient. Egg production rates in A. tonsa were lowest on nutrient deficient diets under low food quantities. Reduced egg production rates may be attributed to the lowered GGEs for C and reduced transfer efficiency of essential FAs between phytoplankton and copepods, indicating interactive-essential effects of elements and FAs on copepod production. Our results highlight that nutrient deficiency in the environments may reduce energy transfer efficiency at the base of food webs by altering phytoplankton chemical composition, which can interact with food quantity and have implications on food web dynamics in the changing ocean.

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Combined Effects of Food Level and Temperature on Life Table Demography of Moina macrocopaStraus (Cladocera)

Hagiwara

Sakakura

2005

International Review of Hydrobiology

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The combined effects of four levels of temperatures (18°C, 23°C, 28°C and 33°C) and food densities (0.5 × 10 6 , 1.0 × 10 6 , 2.0 × 10 6 and 4.0 × 10 6 cells ml -1 of Chlorella vulgaris) on the life-table demographic parameters (age-specific survivorship and fecundity, average lifespan, gross reproductive rate, net reproductive rate, generation time and intrinsic rate of population increase) of a laboratory population of the cladoceran Moina macrocopa were investigated. Both food level and temperature, independently and in interaction, significantly influenced nearly all the parameters. The average lifespan was maximized at 18°C under 1.0 × 10 6 cells ml -1 of Chlorella. The reproductive performance was a direct function of the food level, but the magnitude of food-level effect depended on temperature. Among the algal concentrations used here, 0.5 × 10 6 -2.0 × 10 6 cells ml -1 were suitable for the survival and reproduction of M. macrocopa. Regardless of the food-level effect, both the gross reproductive rate and the net reproductive rate at 23°C was higher, and the generation time generally decreased with the rise of temperature. Within the suitable food-level range, the average value of the intrinsic rate of population increase ascended with the rise of temperature from 0.72 to 2.41 day -1 .

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Cited by 35 publications

References 28 publications

Thermal reaction norms of a subtropical and a tropical species of Diaphanosoma (cladocera) explain their distribution

Thermal reaction norms of a subtropical and a tropical species of Diaphanosoma (cladocera) explain their distribution

Food Quantity and Quality Interactions at Phytoplankton–Zooplankton Interface: Chemical and Reproductive Responses in a Calanoid Copepod

Combined Effects of Food Level and Temperature on Life Table Demography of Moina macrocopaStraus (Cladocera)

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