Relations of water-quality constituent concentrations to surrogate measurements in the lower Platte River corridor, Nebraska, 2007 through 2011

Schaepe, Nathaniel J.; Soenksen, Philip J.; Rus, David L.

doi:10.3133/ofr20141149

Cited by 1 publication

(2 citation statements)

References 9 publications

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“…We intended for one temperature to be a cool, nonstressful temperature and the other to be a warmer, more stressful environment, which is near some of the hottest water temperatures that are normally found in this area (Schaepe et al. 2014). We used 12 h:12 h light:dark cycles for both treatments.…”

Section: Methodsmentioning

confidence: 99%

“…We chose these two experimental temperatures because they were six degrees on either side of the previously established optimum temperature for other populations from this location (26 • C) (Salsbery and De-Long, 2018), and this also aligns well with typical temperatures of their previous environment. We intended for one temperature to be a cool, nonstressful temperature and the other to be a warmer, more stressful environment, which is near some of the hottest water temperatures that are normally found in this area (Schaepe et al 2014). We used 12 h:12 h light:dark cycles for both treatments.…”

Section: Experimental Culturesmentioning

confidence: 99%

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Thermal adaptation in a holobiont accompanied by phenotypic changes in an endosymbiont

Salsbery

DeLong

2021

Evolution

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How and if organisms can adapt to changing temperatures has drastic consequences for the natural world. Thermal adaptation involves finding a match between temperatures permitting growth and the expected temperature distribution of the environment. However, if and how this match is achieved, and how tightly linked species change together, is poorly understood. Paramecium bursaria is a ciliate that has a tight physiological interaction with endosymbiotic green algae (zoochlorellae). We subjected a wild population of P. bursaria to a cold and warm climate (20 and 32℃) for ∼300 generations. We then measured the thermal performance curve (TPC) for intrinsic rate of growth (rmax) for these evolved lines across temperatures. We also evaluated number and size of the zoochlorellae populations within paramecia cells. TPCs for warm‐adapted populations were shallower and broader than TPCs of cold‐adapted populations, indicating that the warm populations adapted by moving along a thermal generalist/specialist trade off rather than right‐shifting the TPC. Zoochlorellae populations within cold‐adapted paramecia had fewer and larger zoochlorellae than hot‐adapted paramecia, indicating phenotypic shifts in the endosymbiont accompany thermal adaptation in the host. Our results provide new and novel insight into how species involved in complex interactions will be affected by continuing increasing global temperatures.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Culturesmentioning

confidence: 99%

Thermal adaptation in a holobiont accompanied by phenotypic changes in an endosymbiont

Salsbery

DeLong

2021

Evolution

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Relations of water-quality constituent concentrations to surrogate measurements in the lower Platte River corridor, Nebraska, 2007 through 2011

Abstract: Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius (µS/cm at 25°C). Turbidity units are given in Formazin Nephelometric Units (FNU).

Cited by 1 publication

References 9 publications

Thermal adaptation in a holobiont accompanied by phenotypic changes in an endosymbiont

Thermal adaptation in a holobiont accompanied by phenotypic changes in an endosymbiont

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