voluModel: a new R package to model species distributions in 3 dimensions

Post provided by Hannah Owens (she/her)

One of the base units of analysis for biogeography and conservation science is the species range map. Once we know where a species is, we can ask questions like “Why is it there?”, “How did it get there?”, or “What can we do to make this place better for it?” Especially these days, I am very interested in mapping marine fish distributions, which, it turns out, is not as simple as mapping terrestrial species.

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Random errors are neither: interpretation of correlated data

Post provided by Anthony Ives

It was a true privilege to be asked to write the inaugural E. C. Pielou Review for Methods in Ecology and Evolution. The first ecology book I bought as an undergraduate was her Ecological Diversity (1975) which still sits on my bookshelf full of marginalia. Both ecology and evolution have long and rich histories of theoretical and empirical work, yet sometimes theory and observation have been only loosely connected. Pielou’s work made it possible to link theory and observation more tightly by providing quantitative, statistical metrics to describe patterns in the world that can be related back to theory.

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A new graphical interface and toolkit for phylogenetic analyses

Post provided by Daniel Edler

Each year Methods in Ecology and Evolution awards the Robert May Prize to the best paper published in the journal by an author at the start of their career. Ten Early Career Researchers made the shortlist for this year’s prize, including Daniel Edler who is a PhD student at Umeå University in Sweden. In this interview, Daniel shares insights on his paper ‘raxmlGUI2.0: a graphical interface and toolkit for phylogenetic analyses using RAxML’.

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Countdown to the first ISEC in Africa!

Post provided by SEEC The Centre for Statistics in Ecology, Environment and Conservation (SEEC) invites you to ISEC2022 in Cape Town, South Africa, 27 June – 1 July 2022 – the first International Statistical Ecology Conference (ISEC) to be held in Africa! Registration is now open and we would like to welcome all of you to join this exciting event. Statistical ecology is an inherently … Continue reading Countdown to the first ISEC in Africa!

A new tool to identify important sites for conservation using tracking data

Post provided by Martin Beal, Steffen Oppel, Jonathan Handley, Richard Phillips, Paulo Catry, and Maria Dias.

Identifying areas around the world that can best contribute to the conservation of wild animals is a major challenge. Historically, this required conducting extensive surveys in the field, but with the advent of miniature tracking technology we can now follow animals and allow them to indicate which areas they depend on most. In this collaborative post, international researchers from ISPA – Instituto Universitário in Lisbon, the Royal Society for the Protection of Birds, BirdLife International, and British Antarctic Survey present a new conservation tool as outlined in the paper “track2KBA: An R package for identifying important sites for biodiversity from tracking data” recently published in Methods in Ecology and Evolution.    

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Ten Years of Methods in Ecology and Evolution

Methods in Ecology and Evolution is turning 10 years old! Back in 2010, we launched the journal because of feedback from the community that there was a need for a journal that promoted the publication of new methods. Founding Editor Rob Freckleton and Graziella Iossa (now a member of the Editorial Board) summarised the aims and ambitions for the journal in the first issue. They … Continue reading Ten Years of Methods in Ecology and Evolution

Stuck between Zero and One: Modelling Non-Count Proportions with Beta and Dirichlet Regression

Post provided by JAMES WEEDON & BOB DOUMA

Chinese translation provided by Zishen Wang

這篇博客文章也有中文版

Proportion of leaf damage is a type of measurement that can lead to proportional data.

Imagine the scene: you’re presenting your exciting research results at an important international conference. Being conscientious and aware of statistical best-practice and so you’ve included test statistics and confidence intervals on all your result figures. Not just P values! Some of the data you are presenting involves the proportion of leaf surface damaged by an insect herbivore under different treatments. You finish your presentation (on time!) and there’s time for questions. From the audience a polite but insistent colleague asks: “Your confidence interval for that estimate goes from -0.3 to 0.5… how should we interpret a negative proportion of a leaf?”.

Someone chuckles. As you nervously flick back to the slide in question, you mutter something about the difference between confidence intervals and point estimates. You start to feel dizzy. A murmur of confused voices slowly builds amongst the audience members. In the distance, a dog barks.

How can you avoid this?

Proportional Data in Ecology and Evolution

Many kinds of quantities that ecologists and evolutionary biologists routinely measure are most conveniently expressed as proportions. In many cases these proportions are derived from counts. The data are based on discrete entities that can be assigned to two or more classes: success or failure, male or female, invasive or non-invasive. In other cases the proportions are derived from continuous measurements: the proportion of time an animal spends on different activities;  percent cover of a plant functional type in a vegetation survey quadrat; allocation of total plant biomass to different organs and tissues. What these data types have in common is that they can only take values between zero and one. Negative values, or values greater than one, don’t make any sense. Continue reading “Stuck between Zero and One: Modelling Non-Count Proportions with Beta and Dirichlet Regression”

New Associate Editor: Res Altwegg

Today, we are pleased to be welcoming a new member of the Methods in Ecology and Evolution Associate Editor Board. Res Altwegg joins us from the University of Cape Town, South Africa and you can find out a little more about him below. Res Altwegg “My interests lie at the intersection between ecology and statistics, particularly in demography, population ecology, species range dynamics and community ecology. My work … Continue reading New Associate Editor: Res Altwegg

R2ucare: An Interview with Olivier Gimenez

At the International Statistical Ecology Conference in St Andrews this July (ISEC 2018) David Warton interviewed Olivier Gimenez about R2ucare. R2ucare is an R package for goodness-of-fit tests for capture-recapture models. The full Methods in Ecology and Evolution article on this package – R2ucare: An r package to perform goodness‐of‐fit tests for capture–recapture models – was published in the July 2018 issue of the journal. David and Olivier also discuss some … Continue reading R2ucare: An Interview with Olivier Gimenez

Crossing the Palaeontological-Ecological Gap

Today is the first day of the Crossing the Palaeontological-Ecological Gap (CPEG) conference. The aim of the conference is to open a dialogue between palaeontologists and ecologists who work on similar questions but across vastly different timescales. This splitting of temporal scales tends to make communication, data integration and synthesis in ecology harder. A lot of this comes from the fact that palaeontologists and ecologists tend to publish in different journals and attend different meetings.

Methods in Ecology and Evolution is one of few ecological journals that attracts submissions from both ecologists and palaeontologists. To highlight this, we’ve released a Virtual Issue, also called Crossing the Palaeontological-Ecological Gap. Continue reading “Crossing the Palaeontological-Ecological Gap”