Natalie E. van Dis

Natalie E. van Dis MSc

PhD Student
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Droevendaalsesteeg 10
6708 PB Wageningen

+31 (0) 317 47 34 00

The Netherlands

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About

I am fascinated by how organisms can cope with environmental change. In my PhD, I investigate the rapid adaptation to climate change of the winter moth: how was this species able to successfully adapt in just 10 years time?

Biography

In a world with rapid and wide-spread environmental changes, knowledge about how organisms can cope with these changes will be instrumental in making our society more sustainable.

My daily detective work at the NIOO involves investigating the winter moth's successful adaptation to climate change from different perspectives. In just 10 years, the seasonal timing of winter moth egg hatching relative to their food source improved. This shift involved genetic changes in how egg development responds to temperature during winter.

Using fluorescence imaging, gene expression profiling (RNAseq), whole-genome sequencing, and population modelling, I explore the what, when, and how of the winter moth's genetic adaptation to climate change.

How does winter moth egg development respond to temperature? What genes are involved in this response? What regions of the genome changed in response to selection from climate change? When did these changes take place?

By mastering lab techniques, bioinformatics, and statistics, and being the occasional control freak, I aim to answer these questions in my PhD project.

Winter moth embryos imaged with a fluorescence microscope.
Winter moth embryos imaged with a fluorescence microscope

Research groups

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Publications

Peer-reviewed publications

  • Journal of Experimental Biology
    01-09-2021

    Timing of increased temperature sensitivity coincides with nervous system development in winter moth embryos

    Natalie van Dis, Maurijn van der Zee, Roelof A Hut, Bregje Wertheim, Marcel E. Visser
    Climate change is rapidly altering the environment and many species will need to genetically adapt their seasonal timing to keep up with these changes. Insect development rate is largely influenced by temperature, but we know little about the mechanisms underlying the temperature sensitivity of development. Here, we investigate seasonal timing of egg hatching in the winter moth, one of the few species which has been found to genetically adapt to climate change, likely through selection on temperature sensitivity of egg development rate. To study when during development winter moth embryos are most sensitive to changes in ambient temperature, we gave eggs an increase or decrease in temperature at different moments during their development. We measured their developmental progression and time of egg hatching, and used fluorescence microscopy to construct a timeline of embryonic development for the winter moth. We found that egg development rate responded more strongly to temperature once embryos were in the fully extended germband stage. This is the phylotypic stage at which all insect embryos have developed a rudimentary nervous system. Furthermore, at this stage, timing of ecdysone signaling determines developmental progression, which could act as an environment dependent gateway. Intriguingly, this may suggest that, from the phylotypic stage onward, insect embryos can start to integrate internal and environmental stimuli to actively regulate important developmental processes. As we found evidence that there is genetic variation for temperature sensitivity of egg development rate in our study population, such regulation could be a target of selection imposed by climate change.
    https://doi.org/10.1242/jeb.242554
  • Frontiers in Ecology and Evolution
    2021

    Color of Artificial Light at Night Affects Incubation Behavior in the Great Tit, Parus major

    Artificial light at night (ALAN) has been recognized as a biodiversity threat due to the drastic effects it can have on many organisms. In wild birds, artificial illumination alters many natural behaviors that are important for fitness, including chick provisioning. Although incubation is a key determinant of the early developmental environment, studies into the effects of ALAN on bird incubation behavior are lacking. We measured nest temperature in nest boxes of great tits during the incubation period in two consecutive years. Nest boxes were located in eight previously dark field sites that have been experimentally illuminated since 2012 with white, green, or red light, or were left dark. We tested if light treatment affected mean nest temperature, number of times birds leave the nest (off-bout frequency), and off-bout duration during the incubation period. Subsequently, we investigated if incubation behavior is related to fitness. We found that birds incubating in the white light during a cold, early spring had lower mean nest temperatures at the end of incubation, both during the day and during the night, compared to birds in the green light. Moreover, birds incubating in white light took fewer off-bouts, but off-bouts were on average longer. The opposite was true for birds breeding in the green light. Low incubation temperatures and few but long off-bouts can have severe consequences for developing embryos. In our study, eggs from birds that took on average few off-bouts needed more incubation days to hatch compared to eggs from birds that took many off-bouts. Nevertheless, we found no clear fitness effects of light treatment or incubation behavior on the number of hatchlings or hatchling weight. Our results add to the growing body of literature that shows that effects of ALAN can be subtle, can differ due to the spectral composition of light, and can be year-dependent. These subtle alterations of natural behaviors might not have severe fitness consequences in the short-term. However, in the long term they could add up, negatively affecting parent condition and survival as well as offspring recruitment, especially in urban environments where more environmental pollutants are present.
    https://doi.org/10.3389/fevo.2021.728377
  • Journal of Experimental Zoology Part A: Ecological Genetics and Physiology
    2018

    No effect of artificial light of different colors on commuting Daubenton's bats (Myotis daubentonii) in a choice experiment

    Progressive illumination at night poses an increasing threat to species worldwide. Light at night is particularly problematic for bats as most species are nocturnal and often cross relatively large distances when commuting between roosts and foraging grounds. Earlier studies have shown that illumination of linear structures in the landscape disturbs commuting bats, and that the response of bats to light may strongly depend on the light spectrum. Here, we studied the impact of white, green, and red light on commuting Daubenton's bats (Myotis daubentonii). We used a unique location where commuting bats cross a road by flying through two identical, parallel culverts underneath. We illuminated the culverts with white, red, and green light,with an intensity of 5 lux at the water surface. Bats had to choose between the two culverts, each with a different lighting condition every night. We presented all paired combinations of white, green, and red light and dark control in a factorial design. Contrary to our expectations, the number of bat passes through a culvert was unaffected by the presence of light. Furthermore, bats did not show any preference for light color. These results show that the response of commuting Daubenton's bats to different colors of light at night with a realistic intensity may be limited when passing through culverts.
    https://doi.org/10.1002/jez.2178
  • Frontiers in Ecology and Evolution
    30-05-2017

    Artificial Light at Night Reduces Daily Energy Expenditure in Breeding Great Tits (Parus major)

    Anouk Welbers, Natalie van Dis, Annemieke Kolvoort, Jenny Ouyang, Marcel E. Visser, Kamiel Spoelstra, Davide Dominoni
    The ecological impact of artificial light at night (ALAN) is an increasingly recognized process that accompanies expanding urbanization. Yet, we have limited knowledge on the impact of ALAN on wild species, and on the potential to mitigate any negative effects by using different light sources and colors. In birds, effects of ALAN on activity levels are reported for several species and, hence, their daily energy expenditure (DEE) may be affected. DEE is a potent mediator of life-history trade-offs and fitness and thus an important aspect to consider when examining the potential long-term ecological effects of ALAN. Previous work has suggested that birds exposed to ALAN show higher levels of provisioning and nocturnal activity, suggesting that white ALAN increases DEE. Other factors regulating DEE, such as provisioning behavior and food availability, might also respond to ALAN and thus indirectly affect DEE. We tested the hypothesis that ALAN increases DEE using an experimental setup where four previously unlit transects were illuminated with either white, green, or red LED light, or left dark as a control treatment. This setup was replicated in eight locations across the Netherlands. We measured DEE of our focal species, the great tit (Parus major), using a novel doubly labeled water technique that uses breath rather than blood samples. Contrary to our expectations, birds feeding their offspring under white and green ALAN showed lower DEE compared to birds in the control dark treatment. Differences in chick provisioning activity did not explain this result, as neither visit rates nor daily activity timing was affected by light treatment. However, food availability under white and green light was much higher compared to red light and the dark control. This difference strongly suggests that the lower DEE under white and green ALAN sites is a consequence of higher food availability in these treatments. This result shows that there can be positive, indirect effects of ALAN for breeding song birds which may balance against the negative direct effects shown in previous studies.
    https://doi.org/10.3389/fevo.2017.00055

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