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my thoughts on science

Trees are amazing

10/24/2016

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I'm a zoologist, for most of my academic life I have only really concerned myself with animals. Even within this very broad category I have tended to focus on the feathered and furry, although insects are pretty amazing. This is a natural bias that most people probably have, but recently I have been learning more and more about plants and they are truly fascinating.

Trees, and plants in general, to me have always been the start of a much more interesting ecosystem. They are the heterotrophic instigators of nature, using the power of the sun they can make sugars and this basically gets everything going. Above that they seemed uninteresting. However, I listened to a fascinating episode of RadioLab called “From tree to shining tree” in which the details of the Wood Wide Web were unravelled into my ears. These organisms are not solitary sugar factories but part of a vast interconnected system. Below ground all trees have a symbiosis with fungi, enabling the fungi to gain glucose from the tree in exchange for water and mineral ions but each fungi doesn’t just tap up one tree for this. Instead the hyphae of the fungi link different trees, often of the same species but sometime of different species, all together into a vast network. If you have seen Avatar this might ring a bell. This connectedness allows trees to share resources with each other in times of need; for example when one member of the forest is sick or when certain species are in leaf but others are yet to be.
 
But why would trees want to do this? Surely if your neighbour is sick then you will be able to grow above them and gain access to the precious sunlight that they are shading you from? Well yes and no, plants do compete but trees all do better in an intact forest: low wind speeds and cool temperatures lead to reduced evaporation and more water for all, as well as reduced risk of being blown over. But they don’t just give each other glucose, they can also signal to each other about potential risk, such as insect attack or disease. The key players in these networks are the old trees, those mighty majestic mothers of the forest who are probably 500 years old, and this has implications for forest management. There is a great TED talk about this by the researcher who discovered these networks Prof Suzanne Simrad called “How trees talk to each other.”

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But it isn’t just this wonderful connectedness and cooperation that has blown me away. I have been reading the book Hidden Life of Trees by Peter Wohlleben and it is a beautiful and heartfelt insight into the lives of these organisms. The book details the wonderful communication systems of trees, from emitting ethylene into the air to warn the trees around them of browsing herbivores to using pheromones to call in the predators of the specific species of aphid that are currently feeding on the tree. The book details how plants can hear water, and grow towards pipes that are running underground. How the mimosa can actually learn not to respond to a stimulus (plants can learn!!). But the part of the book that I find the most fascinating is the way in which trees create ecosystems, by slowing down the air, securing the soil, then with the host of organisms that live on, with and around them they fix nitrogen to fertilise the soil and they release volatile compounds into the air to increase rainfall. All of these ecosystem drivers occur faster and more efficiently in primary, pristine forests; again this is something that needs to be taken into account in forest management.
 
I recommend reading, listening to or watching any/all of these links. Truly fascinating.
 
Hidden Life of Trees (Book) https://www.amazon.co.uk/Hidden-Life-Trees-Communicate-Discoveries-Secret/dp/1771642483
 
Prof Suzanne Simrad TED Talk
ttps://www.ted.com/talks/suzanne_simard_how_trees_talk_to_each_other?language=en
 
RadioLab “From tree to shining trees” http://www.radiolab.org/story/from-tree-to-shining-tree/
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Nepotism in babblers

8/24/2016

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A new pied babbler paper has come out from Martha Nelson-Flower. Martha looked at how long subordinates stayed in their groups and how likely they were to gain a dominant breeding position. In babblers there appears to be a sex difference: males have a longer subordinate tenure when they are related to the dominant male, but there is no impact of relatedness for females (either relatedness to the dominant female or male). But why is this important? Well, it turns out that the longer you are a subordinate for then the more likely you are to attain dominance.

Why would this be the case? Well it may be that dominant males are less tolerant of unrelated males, as they are more likely to compete with them for reproductive opportunities. Related males in pied babbler groups tend to be father and son (with dad being dominant), although it can be the case that one brothers holds the dominant position while the other is subordinate. But why would sticking around as a subordinate be better? Surely it pays to leave quickly and get a dominant position elsewhere, so you yourself can breed. However, gaining dominance is not that easy, vacancies are not that easy to come by and you have to be a pretty big and sexy male to just go and kick another male out of his group. Perhaps it is best just to stay in a group, build up your condition and wait for an opportunity, as going it alone is a very risky business for a babbler!

Nepotism and subordinate tenure in a cooperative breeder. Biology Letters
In many cooperatively breeding societies, subordinate individuals delay dispersal and independent breeding. The length of time that subordinates delay dispersal (subordinate tenure) is likely to have important implications for both subordinate and dominant fitness. However, quantitative comparisons of the subordinate tenure of males and females are rare, especially with respect to the presence of same- versus opposite-sex close kin. Here, we investigate subordinate tenure and how it is affected by the genetic relationship between subordinates and dominants in the cooperatively breeding southern pied babbler (Turdoides bicolor). We find that for males, longer subordinate tenures result in increased likelihood of attaining dominance. In the presence of an unrelated dominant male, tenure of subordinate males is significantly shorter, indicating nepotism among males. Female tenures are unaffected by the genetic relationship to either the dominant male or female. These results are some of the first to demonstrate that the sex of both the dominants and subordinates, and the genetic relationship between them, can have significant impacts on subordinate tenure and dispersal delays. Nepotism has likely played a vital role in the evolution of cooperative breeding in this species.
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Talking to eggs and singing out of tune

8/20/2016

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​In a recent blog post I mentioned the research of the Hot Birds Project and the new research into how pied babblers respond to high temperatures that is going on. Amazingly, a new paper which is really relevant to that sort of work has just come out in Science. This research, by Mariette and Buchanan looks at acoustic communication between parents and their offspring in birds. This isn’t the normal adult bird chirping to a chick but communicating to their unhatched offspring. Zebra finches acoustically signal high ambient temperatures (>26°C) to their unhatched embryos, resulting in developmental changes to the offspring. This is brought about solely by using acoustic cues. This type of work is especially exciting because it shows potential coping mechanisms that animals may have for changing climates, it is also an exciting meeting point of parental effects, phenotypic plasticity and climate science. I’ve put the abstract and link to the article at the end of the post.

Link to video to help explain the 'talking to their eggs when hot' paper: http://www.sciencemag.org/news/2016/08/video-zebra-finch-call-prepares-their-eggs-climate-change?utm_source=newsfromscience&utm_medium=facebook-text&utm_campaign=zebrafinch-6739

The other cool paper that has come out recently is work looking at Atlantic canaries and inbreeding. Males who were inbred were worse at singing and females mated less often with inbred males, producing fewer eggs. So for canaries it seems that singing is a honest signal of male genetic quality, adding credence to the ‘good genes’ hypothesis – the idea that male signals are a true representation of their genetic quality and females choose mates for this reason. Work on lizards, mice and lemurs have shown that olfactory cues are linked to genes related to immunity. I love this kind of science, I find it so fascinating. It also has impacts for helping to understand conservation issues with species range and population sizes and how to ensure viable populations. Again, the abstract and link are below.

Mariette & Buchanan (2016) Prenatal acoustic communication programs offspring for high posthatching temperatures in a songbird. Science, 353:812-814
In many species, embryos can perceive and learn external sounds. Yet, the possibility that parents may use these embryonic capacities to alter their offspring’s developmental trajectories has not been considered. Here, we demonstrate that zebra finch parents acoustically signal high ambient temperatures (above 26°C) to their embryos. We show that exposure of embryos to these acoustic cues alone adaptively alters subsequent nestling begging and growth in response to nest temperature and influences individuals’ reproductive success and thermal preferences as adults. These findings have implications for our understanding of maternal effects, phenotypic plasticity, developmental programming, and the adaptation of endothermic species to a warming world.

De Boer et al. (2016) ‘Out of tune’: consequences of inbreeding on bird song. Proc Roy Soc B
The expression of bird song is expected to signal male quality to females. ‘Quality’ is determined by genetic and environmental factors, but, surprisingly, there is very limited evidence if and how genetic aspects of male quality are reflected in song. Here, we manipulated the genetic make-up of canaries (Serinus canaria) via inbreeding, and studied its effects upon song output, complexity, phonetics and, for the first time, song learning. To this end, we created weight-matched inbred and outbred pairs of male fledglings, which were subsequently exposed to the same tutor male during song learning. Inbreeding strongly affected syllable phonetics, but there were little or no effects on other song features. Nonetheless, females discriminated among inbred and outbred males, as they produced heavier clutches when mated with an outbred male. Our study highlights the importance of song phonetics, which has hitherto often been overlooked.
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Extracurricular scienceĀ 

8/18/2016

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At the end of the month I will be embarking on a new career as a biology teacher. In a bid to try and get my students engaged in science outside of the class room and to help them see the bigger picture of science, i.e. biology is not just the curriculum you learn in school, I have put together a list of websites, youtube channels and podcasts that will broaden their horizons. I realised that this list might be of interest to other people who are teachers or just interested in science in general and would appreciate a signpost to some good content.

This list is more biology focused but it does include general science, as well as more pop culture stuff like Radiolab and Stuff You Should Know. I'm going to try and impress upon my students the ease of podcasts, they're a great tool for enjoying learning and can be listened to while on route to school, going for a run or cleaning your room (all situations in which I listen to them). I know that not every student will read watch or listen to my suggestions but if I can hook a few in then I'll have done my job!

Things to listen to or watch outside of class
 
To read:
 
Websites
IFL Science - http://www.iflscience.com/
The Conversation - http://theconversation.com/uk
BBC science - http://www.bbc.co.uk/news/science_and_environment
Guardian science - https://www.theguardian.com/uk/environment
Real Clear Science - http://www.realclearscience.com/
 
Blogs
Carl Zimmer - http://carlzimmer.com/
Ed Yong (Nat Geo) - http://phenomena.nationalgeographic.com/blog/not-exactly-rocket-science/
WIRED - http://www.wired.com/tag/science-blogs-2/
popsci.com - http://www.popsci.com/blog-network
Nature’s top blog list - http://www.nature.com/news/2006/060703/multimedia/50_science_blogs.html
 
To watch:
 
TED talks - https://www.ted.com/talks
TED science - https://www.youtube.com/user/TEDtalksDirector
Crash Course - https://www.youtube.com/user/crashcourse
Interactive Biology - https://www.youtube.com/user/InteractiveBiology/
Armando Hasudungan - https://www.youtube.com/user/armandohasudungan
Animal Wonders - https://www.youtube.com/user/Anmlwndrs
Bozeman Biology - https://www.youtube.com/user/bozemanbiology
The Brain Scoop - https://www.youtube.com/user/thebrainscoop
Gross Science - https://www.youtube.com/user/grossscienceshow
Veritasium - https://www.youtube.com/user/1veritasium
 
To listen: (all available on itunes and overcast or directly downloadable)
 
The Infinite Monkey Cage - http://www.bbc.co.uk/programmes/b00snr0w/episodes/downloads
60-second science - http://www.scientificamerican.com/podcast/60-second-science/
Science for the people - http://www.scienceforthepeople.ca/
Guardian Science Weekly - https://www.theguardian.com/science/series/science
The Story Collider - http://www.storycollider.org/
The Naked Scientists - http://www.thenakedscientists.com/HTML/podcasts/naked-scientists/
Nature Podcasts - http://www.nature.com/nature/podcast/
 
Not always science but just great:
Radiolab - http://www.radiolab.org/
Stuff You Should Know - http://www.stuffyoushouldknow.com/podcasts/



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Crazy Kalahari capers

8/16/2016

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Picture
Panorama from Big Dune
I’ve just returned from a fun but fairly hectic trip to the Kalahari. This chance came about because there is a new PhD student starting on the pied babblers but no one was available to train her. So, on a plane I hopped and met up with Amanda Bourne. She’s going to be looking at climate effects on the babblers and be part of the Hot Birds Project. Her work is going to be a mix of: physiology, trying to understand the metabolic costs; behavioural, working out if temperature impacts on social and group cohesive behaviours – trying to see if sociality may act as a buffer to high temperatures; and investigating cumulative impacts of high temperature on groups and individuals. All this is really cool, interesting, and (pardon the pun) hot stuff. She is following on from other hot birds work at the Kuruman River Reserve: van de Ven et al. 2016 found that hornbills can regulate blood flow to their beaks to regulate their temperature without evaporative heat loss; du Plessis et al. 2012 found that increasing temperature caused a decrease in the foraging success of pied babblers, with birds displaying heat dissipation behaviour while foraging. She’ll also be able to build on some recent babbler work by Lizzie Wiley who found that adults provisioned nestlings much less on hot days, resulting in decreased nestling growth (Wiley & Ridley 2016).
 
So why was I there? Well the babblers are a bird with lots of complex behaviours, fairly defined territories and the project has specific protocols to maintain consistent data collection over its 13 year history. The privilege fell to me to basically walk around and look at birds for 10 days solid, life is so hard! But in all seriousness, the study population consists of wild birds who have been habituated to close human presence and without knowing how to act around them it is possible to dehabituate them very quickly and see your PhD data quickly fly away. I was also able to help Amanda figure out potential research questions and experiments that she wouldn’t have been able to think of without seeing how they behave.
 
Before heading off I was anticipating a fairly dull period in the field: its winter, they’re hungry and so they just forage and fly about between the distant patches of low density prey. How wrong I was. This has been a very odd year in the Kalahari, late summer rain in April and a mild winter led to a bumper abundance of food. When food is not a problem the babblers, and all of the other Kalahari animals for that matter, get it on and babies are the result. We arrived to find multiple groups with fledglings, and so the veldt was alive with the begging of babblers – music to my ears. Following these groups of babblers where the scimitar bills taking advantage of babbler sentinels and the ubiquitous drongos. We found groups like Centaurus (pictured below) incubating and even observed some egg eating in a group with females who were competing for reproduction. Whilst other groups were having large aerial battles with their neighbours. Amanda was privileged to observe a dispersal event, the dominant female of Vivaldi was fed up with her light weight male and decided to fly across to join the much heavier male of neighbouring group Noleg, even though at one point she flew back to join her old group for a fight against another group before quickly remembering that she’d left.
 
Whilst looking for groups, and teaching Amanda the babbler whistle (an ululating call to get the birds to fly to you) and group territories, we came across wild groups and individuals who had dispersed from the study population (one may have last been seen in the population in 2004!! – although confirmation is still needed). One of these wild groups was right in the middle of the reserve and feeding a nest, so they’ve been named (Martu- pronounced Mardu – after the aboriginal people of the Western Deserts of Australia) and habituation may start in September when Amanda gets back. 
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Winter fledgling at Malteasers
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Cheeky pied babbler
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Another cheeky pied babbler
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Amanda weighing Centaurus
Amanda’s boyfriend, plant biologist and restoration ecologist extraordinaire, Todd Erickson also came along. He was able to use my camera a lot more than I was, and many of the pictures on the blog post were taken by him. Todd’s botanical leanings allowed me to see the veldt in a new way, paying attention to the small succulents, grasses and flowers that had flourished because of the late rains. The Kalahari was filled with colour, majestic in its flora. This colour had been included in the babbler nests, with many of them decorated with the lovely yellow flowers that littered the landscape. Todd’s insights about how dunes actually hold water better than the slacks, meaning that larger trees and shrubs can grow there, blew my mind and made me look at the landscape in a completely new way. This is why I love science, there are so many disciplines and you can always learn something new that changes your world view.
 
I’ve written mostly about the babblers, and that’s because they are awesome, but there are many other projects at the KRR. There is the over 20 year study of meerkats, who have had a terrible year: prior to the late rains it had been a drought and their groups had been decimated by the combined disasters of no recruitment and TB, but they had started to breed in the winter. The Cape Ground Squirrel Project, started by my friend Jamie Samson, is still going strong and again they have had loads of strange winter pups. And for those of you who want to fly to South Africa, travel for hours to the remote Kalahari and then spend most of your time indoors there are always the molerats to work on. That might sound a bit negative but I like being outside and observing animals behaving in their natural habitat and the idea of spending all day under florescent lights (something you can do in an office) in a building that smells of pee (something you get in public toilets) isn’t something that appeals to me. The other cool birds that are studied at the KRR are the hornbills (mentioned above) and the drongos – who spend their time either stealing food from other animals with their vocal mimicry, catching flying insects with ease using their aerial acrobatics or just pissing off large raptors by bomb diving them.
Picture
Rascals meerkat group with pups. Photo by Todd Erickson
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Meerkat eating a gecko. Photo by Todd Erickson
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Cape ground squirrel showing some meerkats who's boss. Photo by Todd Erickson
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Cape ground squirrel. Photo by Todd Erickson
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Cape ground squirrel shading itself from the afternoon sun. Photo by Todd Erickson
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Yellow billed hornbill - the angry one that terrorises ReV. Photo by Todd Erickson
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Fork-tailed drongo guarding in a tree, waiting to steal some food from an unsuspecting babbler
It was very special to go back to the Kalahari, a place that I have spent a lot of time. Seeing the babblers again, watching them play in shepherd’s trees, feed their fledglings or just have them hop on my feet as I weighed them was very special. I also found out that part of my hippocampus is forever engraved with a map of the reserve: I could still walk straight to ladders hidden behind bushes, find trees that had been used as nests in the past and always point to Whiskers Crossing. Part of me will always be in the Kalahari, and no view will ever be as beautiful as the sun setting over the dunes or a time as peaceful as dawn in the veldt.
Picture
Last Kalahari sunset from Big Dune
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Sweet home Kalahari

7/30/2016

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Once again I am off to the desert. However, unlike my previous trips to the wonderful world of red sand and acacias, this time I am going for just two weeks. There is a new PhD student starting on the babblers, more climate change work, and everyone is away. That means that I'm the lucky one who gets to go back and see the birds while training someone to do some awesome science.

I will get to see how the chicks hatched under my watch are doing and what changes have happened. Two years is a long time in the Kalahari, a drought has just happened and they tend to be very disruptive to animal groups. But fingers crossed that they're all fine!

​When end I get back I'll post pics of the desert wildlife, as I am hoping for some great snaps.
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Some recent biology news

7/25/2016

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I have been really lazy for the past month or so and haven’t really been blogging, even though there have been some really cool science news stories and new papers published. In a half-hearted attempt to get back on the blogging horse, here are some links to a few interesting BBC science stories:
 
Positive news for the rare large heath butterfly: a population has been established after captive breeding and reintroduction!
 
http://www.bbc.co.uk/news/science-environment-36865426
 
Amazonian droughts stop the vast rainforest being a carbon sink. Not great news for increased extreme weather events and climate changes… positive feedback loop?
 
http://www.bbc.co.uk/news/science-environment-36856428
 
Cuckoo decline mapped for the first time:
 
http://www.bbc.co.uk/news/science-environment-36837641
 
Honeyguides and humans ‘speak’ to each other! (although the babblers come to a whistle, so I’m not super surprised that this type of behaviour exists):
 
http://www.bbc.co.uk/news/science-environment-36854465
 
Abstract and link to the paper in the last news story:
 
Spottiswoode et al (2016) Reciprocal signaling in honeyguide-human mutualism. Science, 353:387-389
Greater honeyguides (Indicator indicator) lead human honey-hunters to wild bees’ nests, in a rare example of a mutualistic foraging partnership between humans and free-living wild animals. We show experimentally that a specialized vocal sound made by Mozambican honey-hunters seeking bees’ nests elicits elevated cooperative behavior from honeyguides. The production of this sound increased the probability of being guided by a honeyguide from about 33 to 66% and the overall probability of thus finding a bees’ nest from 17 to 54%, as compared with other animal or human sounds of similar amplitude. These results provide experimental evidence that a wild animal in a natural setting responds adaptively to a human signal of cooperation.
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STEM: is it the answer?

6/16/2016

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I went to a great conference this week: STEMtech. It was a wonderful showcase of teaching tools and techniques to get kids interested and engaged in science, technology, engineering and maths. We heard industry speakers detailing the skills gap that exists and is predicted to worsen in regards to producing engineers. We heard about how engineers will be key to the economy of the future. We heard that 65% of the jobs that currents students will be doing don’t exist yet. But is STEM the answer?


Firstly, I really enjoyed the conference. I was engaged and enthused to try out some of the things that I had seen. However, my first impression was that this wasn’t STEM, it wasn’t science, technology, engineering and maths. Instead, it was physics, technology, engineering and maths. There was very little chemistry in the whole day and absolutely no biology. Biology and chemistry are key components of many growing industries and parts of problems, and the solutions to those problems, of the future. I’m a biologist and so this irked me slightly. I’m fully aware that zoology isn’t going to make lots of money or greatly grow the economy, but the biotech industries are flying at the moment with potential breakthroughs like CRSPR changing the way we interact with living organisms.


To me the issue, as this may have just been for this conference, is with how and which industries are trying to intervene in our education system. They tend to be big engineering companies, and for them the physical sciences are likely to be more important. For them their bottom line will be improved if more students graduated school and university with the skill sets they require. They want engineers, and they want lots of them and they want them now and tomorrow. But is that what is best for the country and society as a whole?


In one way I would say yes and in another no. The industry people who spoke at the conference spoke about how they wanted graduates who were good at problem solving. This is a huge part of education, students should be taught to use their knowledge and apply it to novel situations and to be able to link seemingly desperate areas of their knowledge together (i.e. bits of chemistry to biology, maths to physics, physics to biology etc.). The ability to mentally break out of the silos of subjects and topics is hugely important but it isn’t something that is unique to working in industry. One of the speakers spoke about how our education system is set up to create professors and not engineers, but these cross disciplinary and problem solving skills apply equally to both groups of people. These are abilities that should be taught to students regardless of the STEM movement or interventions by industry, they are core to producing young people with inquiring minds. I worry that the drive for STEM is actually aimed at creating graduates specifically to go into the work place, all of the talk of the jobs of the future seems at odds with the direct applied skills that are being pushed that seem so focused on the jobs of now. Breakthroughs in science and industry are often from pure research that isn’t searching for direct applied results but that has unintended consequences that change the world, e.g. laser technology. By focusing purely on applied skills there is a risk that such breakthroughs in the future may not happen.


What I have taken from this conference and my view on STEM is that I personally want to keep industry at arms length. The money is wonderful but the drive for graduates to fit their needs risks shaping a curriculum that may in the long run damage our industries. Taking the best aspects of the STEM movement (cross curricular approach, problems solving and team work) are things that would benefit everyone, from engineers to business and industry to universities. Fostering creativity and an ability to see the wider picture is the key, and the STEM call to break down subject silos would help (although you still need to learn the basics of each subject before many of these links can be seen/formed). In addition, engaging the humanities departments and the art departments with any STEM projects would prevent resentment developing inside schools, where some faculties may feel side-lined. Even asking the ethical questions surrounding some STEM projects would be a useful exercise in bringing those who are not scientifically minded into this world.


Plus we need more BIOLOGY in STEM!!!


I hope that rambling rant holds some semblance of reasoning that can be discerned by readers.
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Science and the EU

6/15/2016

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The EU referendum is almost a week away. On 23rd June the UK public will decide the fate of our nation. Thus far the referendum has been a farcical show of over blown, often bogus facts, belligerent argument, diversion, dishonesty and occasionally thinly veiled xenophobia. For anyone interested in impartial comments and facts I would recommend FullFact. FullFact are an independent fact checking organisation, who have done an amazing job over the years of clearing up the fog that politicians put into the political debate.

I personally think we should stay in the EU, flawed as it is. The risks of leaving are varied, great and many. However, science potentially has the most to lose. Since the recession funding for science has been decreasing due to the austerity led funding cuts brought in by the coalition and Tory governments. The EU is a huge source of funding for British science. Our universities benefit greatly from this money and also the free movement of people within the EU. Sure there are lots of barriers to non-EU researchers coming to the UK, and that is detrimental to our research, but these barriers are imposed by the British government and not the EU. Between 2007 and 2013 the UK was a net beneficiary of £2.7bn in research funding from the EU (receiving £7bn but giving £4.3bn). If we leave the EU there is no guarantee that any government will match the money currently funding UK research, with a Tory government likely to gain a consecutive term funding cuts would be my prediction. At a time when science is arguably more crucial industrial innovation and the economy as a whole, it seems ridiculous to roll the dice and risk losing this type of funding.

I decided to sign this letter from Scientists for EU as a sign of my commitment to staying in the EU for the benefit of UK science.

http://scientistsforeu.uk/sign-save-science/

If you want to read more then I recommend the Royal Societies report on UK Research and the European Union: https://royalsociety.org/topics-policy/projects/uk-research-and-european-union/

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A podcast that shows how i see the world

6/7/2016

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​As a biologist and someone who spent many years wandering around in remote locations looking at animals it is often hard to explain how I view the world. Many people seem to walk through the streets of their towns and cities blissfully unaware of the flora and fauna that surround they. All they see are streets, cars, buildings, traffic lights or bus stops. For me it’s the birds that I notice most, be it a male rock pigeon puffing his chest up and strutting in vain in front of a female who just wants to be left in peace to forage or a robin with a beak full of food stood on a suburban fence waiting to fly to its nest of hungry chicks. London, with its multitude of parks and open spaces, is a haven for wildlife. I still text my fiancé every time I see an urban fox, it brings a shiver of school boyish excitement. But I often see people wander blindly past interesting natural history that is right in front of them: I remember watching a pair of blackbirds chasing a jay away from an area that was presumably their nest site, or a squirrel that was barking in alarm at a sparrowhawk sat in a tree above a oblivious man. Maybe it is my years of working on birds that alerts me to these things but I really believe that if everyone noticed them that it has the capacity to make a crappy walk home from work amazing, lifting your spirits. Even noticing the melodic tunes of a male blackbird or watching the swallows swoop overhead on a summers evening can bring a natural majesty to any suburb. These scenes, and many more, playout every day in our cities. To add to this there is the majesty of the blossoming of the trees and their fruiting, the bluebells and snowdrops and daffodils that brighten our streets.

The podcast is an episode of 99 Percent Invisible. This podcast is about design but somehow and for some reason its episode "Unseen City: Wonders of the Urban Wilderness" chimes perfectly with how I see the urban landscape as I walk about London. This may just be me, I may be odd, but I thought I'd share it with people who either don't see the world this way or who want to show other people what it's like to be them.
 
Just one final story of urban nature. About a month after we moved into our flat in North London we saw a sparrowhawk catch and kill a juvenile magpie in our garden, meters from the glass. The incident took over half an hour, with alarm calls and cackling from the traumatised magpie family as the sparrowhawk mantled its prey.
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    I am a behavioural ecologist, my main interests revolve around familial conflicts and their resolutions. However, my scientific interests are fairly broad.

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