28th January 2019 – Jesamine Bartlett, Univeristy of Birmingham & British Antarctic Survey

jesamine bartlettJes is a polar ecologist, and essentially classes herself as a greedy scientist who cannot decide what discipline to follow. So, she does a little bit of all of them at once instead of having to choose! She uses zoology, botany, physiology, environmental science, a bit of soil chemistry, a dash of microbiology and general wistful thinking whilst looking at beautiful landscapes, to answer questions about how ecosystems work. She thinks that working out how all the interactions and connections that make nature what it is, is the biggest question she could possibly ask the planet. And especially in places like the Arctic and Antarctic, or up mountains, where ecosystems are the most sensitive to change. And the views are also not bad. Jes likes cats and cheese, in that order and definitely not at the same time. She doesn’t much like alien invaders and is regretting writing about herself in third person.

Her fickle nature has led her to a range of places, to look at a range of things: from studying tardigrades in glaciers on Svalbard; Arctic foxes in the mountains of Norway; moss in the upland bogs across the Pennines of England; and midge on a remote island in Antarctica. She loves being in these environments but dislikes being cold, so has developed a strong attachment to her tea-flask. She currently lives and works in Birmingham, UK where she still has to be cold owing to her current research into an invasive midge who, being acclimated to Antarctica, must be kept in rooms at a balmy ‘summer’ temperature of 4ºC. A lot of her current work for the University of Birmingham and the British Antarctic Survey, who she is a final year PhD researcher for, focusses on how this invasive midge is surviving where it shouldn’t be and what it is doing to the ecosystem of Signy Island, where it was introduced. The work so far has identified that this species is doing very well, is hard as nails and is likely to spread! So now her research is focussing on biosecurity and areas of policy that may mitigate this from happening.

Jes enjoys science communication and sits on the British Ecological Society’s public engagement working group, where she nags people about the importance of digital media. She is looking forward to taking over @Biotweeps, so expect an eclectic look at polar and alpine ecology, science news and science policy!

(NB: you can hear her speaking about herself and her work in first person, like a normal human, on the podcast Fieldwork Diaries: https://www.fieldworkdiaries.com/people/jes-bartlett/)


10th December 2018 – Katherine O’Reilly, University of Notre Dame and National Sea Grant College Program

Katherine O'ReillyI’m Katherine (AKA Katie AKA @DrKatfish), and I’m a Ph.D. candidate studying aquatic ecology at the University of Notre Dame and currently a National Oceanic and Atmospheric Administration (NOAA) Sea Grant Knauss Marine Policy Fellow in Washington, D.C., USA.

My research (in three words): fish, freshwater, and food webs. My research (in slightly more than three words): I look at how fish connect aquatic habitats in the North American Great Lakes. I use a variety of techniques such as stable isotope analysis and otolith chemistry to understand what kinds of habitats fishes use and when they are using them. Understanding freshwater ecosystems such as lakes and rivers, the animals that live there, and effects of humans is incredibly important in a world where freshwater is increasingly at a premium. We’ll be diving into a lot more on this topic during my week on BioTweeps!

Besides catching fish and hanging out on boats around the Great Lakes, you can find me this year in the halls of NOAA HQ as I complete my fellowship with NOAA’s National Sea Grant College program. I serve as Sea Grant’s Science Communications Specialist, which has been an amazing opportunity for me to get experience in doing #scicomm professionally. No matter where my future career path takes me after finishing up my Ph.D. (whether academia, government, or something else), the skills I’m learning during my fellowship year are going to serve me well.

Speaking of #scicomm, I’m so excited to be hosting BioTweeps during the best time of the year: #25DaysofFishmas! What is #25DaysofFishmas, you may ask? For the past two years, I’ve been sharing fish facts each day during December (along with terrible, terrible puns). It’s been an awesome way to connect people from all backgrounds, spread fishy holiday cheer, and maybe even teach people a little about science. While my #25DaysofFishmas started out focusing on Great Lakes fish species, the idea has caught on and now others are sharing fishes from around the world. I can’t wait to introduce BioTweeps to all the fishy fun this year!

15th October 2018 – Cassie Freund, Wake Forest University

Cassie FreundI am a PhD student at Wake Forest University. I study community ecology in tropical forests and my current research focuses on the role of a large natural disturbance, landslides, in shaping Andean montane forests. My research site is in and around Manu National Park, Peru, and I am part of the Andes Biodiversity and Ecosystem Research Group (www.andesconservation.org). I am particularly interested in how these forests regenerate after landslides, what this means for carbon storage of montane forests, and how landslides and climate change may interact in the future. My work integrates fieldwork, drone technology, and LiDAR (in collaboration with Dr. Greg Asner) to understand the role of landslides in Andean landscapes.

Prior to starting my PhD I worked in Indonesian Borneo for about five years, first doing research on tropical peat swamp forests and later as the program director of the Gunung Palung Orangutan Conservation Program. I’ve written or contributed to articles about topics ranging from microtopographic variation in peat swamp forests, to the orangutan trade, to ecosystem services! I will touch on many of these things during my week hosting Biotweeps. Finally, I also write popular science articles for Massive Science, and my articles can be found here: https://massivesci.com/people/cassie-freund/. My personal website is: https://cathrynfreund.wordpress.com/ and I usually tweet over at @CassieFreund.

14th November 2016 – Indicators and Assessments Research Unit, Institute of Zoology (ZSL)

zslUnderstanding how biodiversity responds to ecosystem change is critical for effective conservation. From the behaviour and dynamics of individuals and populations to the global distribution and extinction risk of species, our research focuses on the challenges of monitoring biodiversity across these different scales.
zsl_davidMonday 14th November DAVID JACOBY @DJacoby_Marine

My research seeks to use electronic tracking devices and network analyses of animal movements to understand connectivity and grouping behaviour in ecological communities. I’m interested in how aggregation, collective movement and social interactions can fundamentally impact the persistence and vulnerability of a species, helping us to mitigate against threats. Most of my research is within the marine environment where I study the dynamics and drivers of social networks in apex marine predators such as sharks. I also have a soft spot for freshwater eels.
zsl_lpiTuesday 15th November THE LIVING PLANET INDEX @LPI_Science

The Living Planet Index (LPI) is a measure of the state of global biodiversity based on population trends of vertebrates from around the world. The Living Planet Database (LPD ) currently holds over 18,000 population time-series for more than 3,600 mammal, bird, fish, reptile and amphibian species. A small team of four is currently working on the upkeep and updates of the database and on all related analyses. The latest Living Planet Report was released at the end of October with new LPI results showing there has been an average decline of 58% in vertebrate populations between 1970 and 2012. Follow our Biotweeps takeover for an in-depth look at the report and updates on the rest of our work.
zsl_robinWednesday 16th November ROBIN FREEMAN @Robin_Freeman

I’m the Head of the Indicators and Assessments Unit. My research spans many disciplines from understanding the status and trends of global biodiversity, the creation of new kinds of technology for monitoring and tracking animals in the wild, to remote fieldwork utilising those technologies and new methods for analysing and interpreting the data we are now able to collect.
zsl_nrlThursday 17th November NATIONAL RED LIST @NationalRedList

The National Red List Project collates the conservation status of species across a large number of taxonomic groups, much like the internationally recognised IUCN Red List, but on a regional or national scale. This means that the red lists can be readily incorporated into national biodiversity strategies and action plans and can inform local or national conservation, development and planning processes. Here in Indicators & Assessments, 220,411 species assessments from 161 countries and regions worldwide have been uploaded to our database. We recently received a huge influx of red lists to be processed, which will keep our team of four quite busy for a while!
zsl_monikaFriday 18th November MONIKA BOHM @MonniKaboom

I am primarily researching how we can use extinction risk as an indicator of species’ status and trends over time – which means I get to work with the IUCN Red List and on a large number of different species groups. My personal favourites: reptiles, freshwater molluscs, butterflies and dung beetles! I am also interested in climate change vulnerability of species, biodiversity monitoring in general, capacity building for conservation and science communication & public outreach. Expect a mixture of all of the above during my Biotweeps takeover!
zsl_pieroSaturday 19th November PIERO VISCONTI @pvisconbio

My research focus is in predicting future distribution, population trends and extinction risk of terrestrial vertebrates under future global change scenarios. I am also interested in understanding early warning signals of changes in ecosystem function. Expect lots of tweets talking about the future!

27th June 2016 – Centre for Marine Futures, University of Western Australia

Centre for Marine Futures.pngBIG PICTURE THINKING

Our vision is global, with partnerships and field programmes in most ocean basins either side of the Equator. Past and current sampling sites include: Western Australia, Palau, New Caledonia, the Chagos Archipelago, Tonga, French Polynesia, the Savage Islands (Ilhas Selvagens), The Philippines, and the Gulf of Oman.


Our goal is to make a difference
Our research boasts high academic and real-life impact. It is used to directly inform and influence both policy and management actions. We are a member group of the Ocean Science Council of Australia (OSCA), an independent consortium of leading Australian experts concerned with advancing marine conservation.


Our research focuses on marine ecological questions relevant to conservation and largely explores the influence of human activities on marine ecosystems.

Key questions our research explores include:
– How do pelagic sharks and fishes respond to the establishment of large marine reserves?
– What roles do apex predators play in tropical marine ecosystems?
– How is climate variability manifested in fish growth and what does this mean for warming oceans?
– How are sharks and fishes distributed on biogeographical scales and in relation to habitat?
– What are the socioeconomic drivers of illegal fishing?

These questions are addressed using a range of techniques included BRUVS, telemetry, biomarkers and predictive modelling.


Dr Phil Bouchet
Postdoctoral fellow
I am a jack of several trades – marine mammalogist by training, converted into shark/fish ecologist as a doctoral student. I have a keen interest in spatial ecology and statistical modelling as they relate to wildlife conservation problems. Recently I developed abundance models for a number of cetacean species (humpback whales, bottlenose and snubfin dolphins) and distribution models for large pelagic fish (tunas and mackerels) around Western Australia.
My PhD research concentrated on ‘hotspots’ of mobile marine predators, and how these aligned with prominent physical features of the ocean floor such as seamounts, submarine canyons, or offshore shoals and banks. This involved coordinating or partaking in field expeditions to Shark Bay, the Timor Sea and the Perth canyon, where I used a new generation of midwater baited underwater video cameras to film endangered oceanic sharks in deep-water environments.
Dr Shanta Barley
Postdoctoral fellow
Reef sharks are being removed from coral reefs globally yet we do not understand how this affects these hotspots of biodiversity. Where sharks are absent, prey may change in terms of abundance, size, behaviour, diet, condition and growth rate, which could have severe knock-on effects on the rest of the ecosystem.
I explore these issues using stereo underwater video systems, stable isotopes and a range of other techniques.
David Tickler
PhD student
I am investigating how spatial ecology and population genetics impact the exposure and vulnerability of sharks to illegal fishing on Indian Ocean reefs, and how social, economic and legal factors affect the scale and range of the fishing effort in these locations. The study will use a combination of ecological tools (fine- and broad-scale movement tracking and population genetics), fisheries data collection at landing sites, and interviews with fishers and other actors to collect data on both the ecology of reef shark species and the fisheries that target them.
The spatial ecology and genetic studies will help understand the role of large MPAs such as Chagos in providing a refuge to reef shark species, and its wider role for these species in the Indian Ocean based on the connectivity (or lack thereof) between sub-populations. The study of illegal fishing aims to help quantify the magnitude of illegal fishing in a large oceanic MPA, identify the key drivers of this activity, and suggest points of engagement with regional stakeholders that will reduce illegal fishing effort.
Charlotte Birkmanis
PhD student
I am a marine biologist with a special interest in shark behaviour and conservation. My research in shark ecology, behaviour and genetics focuses on the role of sharks as regulators of tropical and temperate ecosystems across the Indian Ocean.
This research involves studying a variety of shark species and their prey to discover the implications of reduced shark populations in our oceans, and to determine the relative health of sharks in the Indian Ocean. I attained a Bachelor of Science with distinction in ecology and a Bachelor of Arts in mandarin from Queensland University of Technology. Following on from this, my research on shark and ray biomechanics earned me a Bachelor of Science (Honours I) degree from the University of Queensland. My research will highlight the importance of sharks in our oceans.
Marjorie Fernandes
PhD student
Pelagic (open-water) marine ecosystems are the largest marine environment on Earth. A key ecological component of pelagic systems are their sharks and fishes. My research will explore spatial ecology and behaviour of sharks and fishes using observations from two large marine protected areas (MPAs), the Chagos Marine Reserve and the Palau Shark Sanctuary.
I will be looking at spatial structure and behaviour patterns relating to environmental and habitat characteristics, regarding three pelagic ecosystems key components: (1) juveniles fishes; (2) forage species, and (3) top predators. I will use an innovative, non-destructive and fishery-independent approach, remote underwater camera system to sample pelagic fish and shark. By improving our understanding of how pelagic species use the environment, it will also contribute to improved MPA design.

August 24th 2015 – Rebecca Barak, Northwestern University/Chicago Botanic Garden

I am a PhD candidate in Plant Biology and Conservation at Northwestern University and Chicago Botanic Garden in Illinois, USA.  I study restoration ecology, the science of rehabilitating degraded ecosystems. In particular, I study plant community ecology in the tallgrass prairie. The prairie – native grassland dotted with colorful wildflowers – once covered the Midwestern United States. Restored prairies are built to regain habitat lost to farming, but they aren’t as diverse as remnant prairies, they have fewer coexisting plant species. Diverse prairies are more functional, supporting more wildlife and fewer weeds. What makes restored prairies diverse? To answer this question, I study the effects of management, like seed mixes and prescribed fire, on multiple measures of plant biodiversity, including phylogenetic and functional diversity. I also study seed biology to learn which seed traits may impact establishment of planted species in restored habitats. I work in the field, greenhouse and lab to better understand the connections between restoration decisions and plant biodiversity.

For my week on Biotweeps I’ll be tweeting about PLANTS!!! I’ll also tweet about restoration ecology, the prairie ecosystem, seed biology, citizen science, and highlights from summer field research in restored prairies in and around Chicago. You can find me on twitter (@BeckSamBar) or at my website (http://www.plantbiology.northwestern.edu/people/students/becky-barak.html).