2 Works

Extreme offspring ornamentation in American coots is favored by selection within families, not benefits to conspecific brood parasites

Daizaburo Shizuka & Bruce E. Lyon
Offspring ornamentation typically occurs in taxa with parental care, suggesting that selection arising from social interactions between parents and offspring may underlie signal evolution. American coot babies are among the most ornamented offspring found in nature, sporting vividly orange-red natal plumage, a bright red beak, and other red parts around the face and pate. Previous plumage manipulation experiments showed that ornamented plumage is favored by strong parental choice for chicks with more extreme ornamentation but...

Data from: Trade-offs between morphology and thermal niches mediate adaptation in response to competing selective pressures

Stella Uiterwaal, Ian Lagerstrom, Thomas Luhring, Miranda Salsbery & John DeLong
The effects of climate change - such as increased temperature variability and novel predators – rarely happen in isolation, but it is unclear how organisms cope with multiple stressors simultaneously. To explore this, we grew replicate Paramecium caudatum populations in either constant or variable temperatures and exposed half to predation. We then fit thermal performance curves (TPCs) of intrinsic growth rate (rmax) for each replicate population (N = 12) across seven temperatures (10°C - 38°C)....

Registration Year

  • 2019
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Resource Types

  • Dataset
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Affiliations

  • University of Nebraska–Lincoln
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  • University of California, Santa Cruz
    1