Communication, Conservation

The return of the ‘beast’?

We (Tanja and I) just published a new conservation conflict exploration on our Medium blog!

We asked three experts from the fields of Human Dimensions, Wildlife Research and Moral Philosophy to share their perspectives with us on a particular case study:

Germany relaxes rules on shooting wolves

“After a emotional debate pitting environmental against farming concerns, the government decided that wolves can now be shot if they cause “serious damage” to livestock farmers.

In cases of repeated attacks against sheep flocks or cattle herds, individuals can be hunted down even if it is unclear which animal in a pack was responsible.”

We asked the experts:

  1. Why do people struggle so much with the return of wolves?
  2. Should killing of wolves in Germany be allowed/legal?
  3. What would be the best first step(s) to address this conflict in Germany or other countries in similar situations?

Curious about what they had to say? Read our blog post here!
You can also follow us on Twitter.

Photo credits: Jana Malin; mythos-wolf.de

Communication, Science

A Biologist Love Story

For Valentine’s Day, two colleagues and I conducted a fun writing exercise: we made a loving tribute to our study animals. Thank you, Cecilia and Tanja for all the fun!

Here is my little poetic contribution: 

A Biologist Love Story

Who do I love the most? I cannot choose
My first love affair was with a barnacle goose
We spent a whole winter together, out in the cold
With only a blanket and each other to hold
But in the end, I still had to let you loose

Then came you, with your beautiful black tie
Oh, dazzling great tit, you certainly weren’t shy
Many days we spent, together in the wood
We had so much fun, those times were good
But in the end, we still had to say goodbye

To forget my sorrow, I travelled very far
And in the tropical waters, I found my little star
Pretty little guppy, it was love at first sight
In the dark rainforest, you are my shiny light
I can’t stop thinking of you, it is very bizarre

Even so, I feel alone with you far away
I don’t know what to do, I don’t know what to say
Suddenly, a stranger appeared in the middle of the night
A bat swooped me off my feet and took me to a great height
What will happen, who should I choose at the end of the day?

I don’t know
Come what may…

Communication, Science

A Plenary Experience

Last year, I unexpectedly received an invitation to give a plenary at the Swedish Oikos Meeting in Uppsala. A plenary is a presentation for which all the conference members come together. It usually lasts 45 minutes + 15 minutes questions. Commonly these types of presentations are given by ‘silverbacks’, people with an impressive track record in academia. So imagine my surprise to receive such an invitation.

Why me? Are you sure you did not mistake me for someone else? What could I possibly have to say that a whole conference could find interesting? A little voice in my head was whispering: “RUN”. Then, shortly after my initial shock and fear, I realized what a great opportunity it could be. Not just for me, but for early-career woman researchers in general. Showing that we do have something interesting and inspiring to say.

So I started focussing on my presentation. I quickly decided on the main topic and the structure. For me, visualizing a tree helped a lot. ‘Animal social networks’ would be my trunk, ’causes’, ‘consequences’ and ‘applications/future directions’ my main branches, my studies the twigs and pretty pictures, quotes and movie clips the leaves. A good friend told me about SlideCarnival.com, a website with really cool free powerpoint templates and one of them I used to inspire my own. Personally, I like a bit of humour in a presentation, so I also decided that I needed manipulated pictures of movie stars, to refer to my study species (of course). Incorporating humour and beautiful pictures is mostly a tool for me because it makes me really enjoy making the presentation even if the audience would not actually care so much about it.

It took quite a bit of time to get the number of slides right because I was not used to giving a presentation of that length. And then I needed to practice, practice, practice. For this, I figured that I (of course) needed my own remote clicker/pointer. It’s maybe a bit nerdy, but I can really recommend this to everyone!

And then it was time to give the presentation. I was very nervous, but not paralysing. I had met the organisation, the other plenary speakers and some other participants at the conference the day before and they were all very nice people. Knowing that there would be kind and interested people in the audience helped me a lot in calming down and actually enjoying giving my talk. Still, I thought I saw a lot of uninterested and sceptical faces while I was speaking. Luckily, I know from experience with other (shorter) talks, that this is usually just in my head and I managed to not let it influence me too much.

The talk went very well, I think. I forgot some things (I always do), but nothing essential. And afterwards, I got a lot of positive feedback. Of course, nobody (except for sadists) would come to you afterwards and say your talk sucked. But overall I had a really good feeling about it. I was very happy that I had accepted the invitation and felt ‘brave’ in a way.

I hope that more and more conferences will also start giving early-careers an opportunity to present themselves and their work via a plenary. We do have some interesting things to say :-).

Science

New preprint: More guppies on the preprint server

After my good experience with the first preprint publication, I recently uploaded my second preprint on the BioRxiv server. I am really excited to share these cool new findings, especially since this study almost did not happen.

BioRxiv

Fieldwork is always full of surprises, including flash floods (2018) and cars being stolen (2016). The year of this study (2017), we got stuck on Curacao because our airline was grounded (due to airplane safety concerns, we found out later). Curacao is a great island to spend some time, but it just lacked our favourite little fish: guppies. Luckily, we were able to get new flights and make it to Trinidad a couple of days later.

I love working with guppies, because they allow us to answer some very interesting questions about social living. Guppies live in rainforest streams and in the dry season they often end up in separate pools. These little fish thus naturally experience a variety of physical environments (pools) and social environments (the other fish in the pool). We take advantage of this natural system by trans-locating individual fish to different pools with different social compositions. Most animals would try to go back to their original environment, but for guppies experiencing new physical and social surroundings is just part of their ecology. That we can experimentally control their (social) environment is important, because it allows us to go beyond correlation and ask questions about causality, e.g. how does social composition influence individual foraging success?

To answer this question, we introduced individually marked wild guppies in single sex (male or female) or 50:50 sex compositions, to different pools and studied individuals’ social behavior and their ability to locate novel (experimentally introduced) food patches.

Lysanne_field
Me, being fascinated by guppies

Male guppies found fewer novel food patches in the absence of female guppies, while female patch discovery did not differ between single-sex or mixed compositions. We argue that these results were driven by sex-dependent mechanisms of social association: males reduced sociality when females were absent, while less social individuals found fewer patches. Females were, however, similarly social with or without males. Finally, males, but not females, preferred to join females over males at food patches.

Our study’s take-home message: for a more thorough understanding of social evolution, it is important to consider how individual (e.g. sex) and (sub)population-level traits (e.g. sex composition) interact in shaping the adaptive value of social living in the wild.

Maybe also: don’t fly with Insel Air.

Reference 
Snijders L, Kurvers R.H.J.M, Krause S., Tump A.N., Ramnarine I.W., Krause J. (2018) Females facilitate male patch discovery in a wild fish population. BioRxiv.

 

Science

New publication: the guppy background stories

I am very proud to share my latest publication in Nature Ecology Evolution (NEE). It is the first paper from my ‘guppy’ postdoc at the Leibniz-IGB. It is also the first time (I think) that a manuscript of mine got accepted by the first journal I sent it to, which is also nice for a change :-). Guppies were also the topic of my final year’s highschool science project o, which makes this publication extra special for me. Fish are amazing creatures and I am happy I get to share their stories.

Next to our scientific article, I wrote two background stories:

Social individuals find more food – IGB-website
Guppy_colour_SnijdersHow do you find food when the food is never exactly present at the same place or time? Wild guppies living in the rainforest of Trinidad are faced with this vital question every day. Looking at guppies, it turns out that there are a few keys to finding unpredictable food: being social and surrounding yourself with females. Read more

Being consistent in a dynamic environment: a guppy story – NEE-website
Sometimes things happen that can give you a whole new appreciation of the study system you are working with. For me this thing happened this year. Read more

If you are more of a visual person, I also made a little Youtube video.

The research article can be viewed for free, but please contact me, for example via ResearchGate, if you would like to have the PDF.

Reference
Snijders L, Kurvers RHJM, Krause S, Ramnarine IW, Krause J (2018). Individual- and population-level drivers of consistent foraging success across environments. Nature Ecology and Evolution.