Tag: modelling

Desert and semi-arid, Monitoring and methods, Research summaries

Understanding the distribution of a terrestrial mammal community

Associate Editor Matt Hayward discussed the importance of the recent paper from Lindsey Rich and colleagues ‘Using camera trapping and hierarchical occupancy modelling to evaluate the spatial ecology of an African mammal community’ with his PhD student, Lilian Sales (supervised by Rafael Loyola of the Conservation Biogeography Lab at the Federal University of Goias, Brazil) and below are her views on this paper. Monitoring wildlife … Continue reading Understanding the distribution of a terrestrial mammal community

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Adapting to realistic constraints of eradications: an ‘action-portfolio’ framework that improves ecological benefit and reduces cost

This post by Melissa Wynn, discusses the recent paper by Kate Helmstedt, Justine Shaw, Michael Bode, Aleks Terauds, Keith Springer, Susan Robinson and Hugh Possingham ‘Prioritizing eradication actions on islands: it’s not all or nothing‘ Melissa is a PhD Candidate in the Fenner School of Environment and Society, at the Australian National University, (Twitter: @melissalwynn) One of the greatest threats facing Australia’s unique fauna today … Continue reading Adapting to realistic constraints of eradications: an ‘action-portfolio’ framework that improves ecological benefit and reduces cost

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The ecology behind mosquito–Wolbachia interactions: implications for a novel strategy for biocontrol of arboviruses

In this post Penelope Hancock discusses her paper ‘Density-dependent population dynamics in Aedes aegypti slow the spread of wMel Wolbachia‘ published in Issue 53:3 today. Aedes aegypti mosquitoes, the primary vector of dengue and zika, are the current target of a novel biocontrol strategy involving Wolbachia bacteria. Mosquitoes infected with Wolbachia are less able to transmit viruses to humans. Releases of Wolbachia bacteria into field … Continue reading The ecology behind mosquito–Wolbachia interactions: implications for a novel strategy for biocontrol of arboviruses

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Are models useful? – Predicting intertidal seagrass habitats

In this post Associate Editor Yolanda Wiersma discusses a paper she recently handled by Eelke Folmer and colleagues ‘Consensus forecasting of intertidal seagrass habitat in the Wadden Sea‘ “All models are wrong, but some are useful” The above quote, from British statistician George E.P. Box, has become something of an aphorism in modelling. Upon discovery of the quote, graduate students immediately take comfort from it, … Continue reading Are models useful? – Predicting intertidal seagrass habitats

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New spatio-temporal model improves the ability of fishery managers to set sustainable catch limits

In this post Associate Editor Andre Punt discusses a paper he recently handled by James T. Thorson, Jason Jannot and Kayleigh Somers ‘Using spatio-temporal models of population growth and movement to monitor overlap between human impacts and fish populations‘ In many jurisdictions, including the U.S., conservation management of fish stocks involves comparing catches with estimates of an overfishing limit (OFL). The OFL is a catch … Continue reading New spatio-temporal model improves the ability of fishery managers to set sustainable catch limits

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Northern mixed-grass prairie bounces back, but slowly: reflections on a 33 year long grazing experiment

In this post Julie Kray, Agricultural Science Research Technician, USDA-ARS & Lauren Porensky, Ecologist, USDA-ARS discuss the recent paper ‘Thresholds and gradients in a semi-arid grassland: long-term grazing treatments induce slow, continuous and reversible vegetation change’ How do we strike a balance between an economically sustainable amount of grazing, and an ecologically sustainable amount? This is the central challenge in managing grazed landscapes around the … Continue reading Northern mixed-grass prairie bounces back, but slowly: reflections on a 33 year long grazing experiment

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Environmental DNA and crayfish management

In this post Matthew Dougherty discusses his recent paper ‘Environmental DNA (eDNA) detects the invasive rusty crayfish Orconectes rusticus at low abundances‘ Tangled buoy strings, lost traps, pinched fingers, sweaty brows, and boats smeared with beef liver: these images define the experiences of countless managers and scientists who use baited trapping to monitor crayfish invasions, especially in lakes of the upper Midwest, USA. While these … Continue reading Environmental DNA and crayfish management

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Crucial for population management: new model solves old missing data problem and provides mortality estimates for male African lions

In this post Julia Barthold discusses the recent paper “Bayesian estimates of male and female African lion mortality for future use in population management” by her and co-authors A. J. Loveridge, D.W. Macdonald, C. Packer, and F. Colchero. The article is part of the BES cross-journal special feature “Demography Beyond the Population”. In 2013, I wanted to project the population dynamics of African lions. This … Continue reading Crucial for population management: new model solves old missing data problem and provides mortality estimates for male African lions

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Early warning indicators in aquatic ecosystems

In this post Craig Allen and Hannah Birge discuss a paper from Sarah Burthe and colleagues ‘Do early warning indicators consistently predict nonlinear change in long-term ecological data?’ Complex systems of humans and nature rarely change in gradual, expected ways. Instead, changes often occur suddenly, with major, non-linear losses of human and ecological capital. Once these unexpected changes occur, it can be difficult to restore … Continue reading Early warning indicators in aquatic ecosystems

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How network analyses can help to find out what happens to ostrich farming after an avian influenza outbreak

In this post Craig Allen and Hannah Birge discuss a paper from Christine Moore, John Grewar and Graeme S. Cumming ‘Quantifying network resilience: comparison before and after a major perturbation shows strengths and limitations of network metrics’ Humans are very good at creating mental models to simplify nature’s complexity, to make its many parts and interactions more understandable. Approaches that exemplify this include hierarchy theory, panarchy … Continue reading How network analyses can help to find out what happens to ostrich farming after an avian influenza outbreak

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