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Yngvild Vindenes

@yvinden.bsky.social

3.6K followers 2.1K following 13 posts

Professor, University of Oslo (Department of Biosciences). Life history, disease ecology, climate change responses. Hiking, biking, baking, knitting.

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Yngvild Vindenes @yvinden.bsky.social · 23/07/2025

Our results for the daphnia suggest that observing increased rates of ageing of ectotherms in warmer environments is not necessarily a sign of stress or reduced population viability. Further research is needed to tell whether this is a common pattern across ectotherms. (5/7)

Picture of a daphnia magna female with babies in the brood pouch on the back. This female is 28 days old, of the SE-G1 clone used in the experiment.

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Yngvild Vindenes @yvinden.bsky.social · 23/07/2025

In addition, clonal lines with stronger ageing often showed higher fitness (long-term population growth rate) and net reproductive rate, calculated by matrix population models. (4/7)

A figure from the analysis with three panels, showing fitness (leftmost panel), net reproductive rate (middle panel) and generation time (right panel) for the four clonal lines used in the experiment. The results are calculated from matrix population models, for more details see the paper.

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Yngvild Vindenes @yvinden.bsky.social · 23/07/2025

When comparing the strength of ageing (shape; the relative increase in mortality hazard over one mean lifespan) on the same intrinsic timescale (pace; units of mean lifespan), temperature did not have consistent effects among the clonal lines. (3/7)

A figure from the analysis showing the relationship between pace (x-axis) and shape (y-axis) of ageing in mortality. Each panel represents one of four clonal lines, and results are color coded by temperature. The shape of ageing (y-axis) shows different temperature responses in the four clonal lines.

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Yngvild Vindenes @yvinden.bsky.social · 23/07/2025

While temperature consistently increased the rate of ageing in mortality (slope in the attached figure), it had different effects on the baseline mortality (intercept) and thereby on mean lifespan in different clonal lines. (2/7)

A figure from the analysis, showing that the rate of ageing in mortality (slope, y-axis) increases with temperature, while the age-independent intercept (x-axis) shows a more variable temperature pattern. Each panel shows results from one of four clonal lines. The color code represents temperature, shown in the legend.

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Yngvild Vindenes @yvinden.bsky.social · 16/01/2025

New paper (with Atle Mysterud) presenting a tick model. Ixodes ticks have complex patterns of diapause leading to a highly plastic life cycle. In this paper we consider how this plasticity shapes life history outcomes and seasonal dynamics esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Diagram of tick model transitions between stages across months.

Figure of model results (figure 5 from paper), showing the predicted number of questing tick larvae, nymphs and adults across months under different assumptions for small host use of the larvae and nymphs.

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Yngvild Vindenes @yvinden.bsky.social · 30/01/2024

We now have a fully funded (3 year) PhD position available in disease ecology (Lyme disease with focus on modeling of ecological interactions and processes influencing disease dynamics). Please help spread to interested applicants! www.jobbnorge.no/en/available...

A diagram showing a simplified overview of a tick life cycle (larvae, nymphs and adults) and Lyme pathogen transmission, illustrating main hosts classified as small or large.

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