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Ecological Modelling

International Journal on Ecological Modelling and Systems Ecology
ScienceDirect Publication: Ecological Modelling
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Modelling post-fire tree mortality: Can random forest improve discrimination of imbalanced data?
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Publication date: 15 December 2019Source: Ecological Modelling, Volume 414Author(s): Timothy M. Shearman, J. Morgan Varner, Sharon M. Hood, C. Alina Cansler, J. Kevin HiersAbstractPredicting post-fire tree mortality is a major area of research in fire-prone forests, woodlands, and savannas worldwide. Past research has relied overwhelmingly on logistic regression analysis (LR) that predicts post-fire tree status as a binary outcome (i.e. living or dead). One of the most problematic issues for LR (or any classification problem) occurs when there is a class imbalance in the training data. In...
Robustness of the pollination-herbivory system with high-order interactions to habitat loss
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Publication date: 15 December 2019Source: Ecological Modelling, Volume 414Author(s): Helin Zhang, Dongdong Chen, Zhixia Ying, Feng Zhang, Jinbao LiaoAbstractDespite the prevalence of high-order interactions (HOIs) in pollination-herbivory metacommunities, few studies have yet explored the dynamical implications of such high-order interacting effects on the metacommunity persistence in a spatial context. Here we develop a spatially implicit patch-dynamic framework for a simple three-species system (with one pollinator and one herbivore sharing one plant species), in order to check whether...
Methods for assessing the effects of environmental parameters on biological communities in long-term ecological studies - A literature review
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Publication date: 15 December 2019Source: Ecological Modelling, Volume 414Author(s): Fabien Verniest, Sabine GreulichAbstractMany ecological processes that play important roles in ecosystems occur over long time periods and can therefore not always be properly studied with short-term studies. However, researchers have to face many challenges while setting up long-term ecological studies, including the choice of relevant data analysis methods and the design of the study (i.e. sampling frequency, number of sites, etc.). This literature review, based on 99 original studies, provides an...
Corrigendum to “Modelling damage occurrence by snow and wind in forest ecosystems” [Ecol. Modell. 408 (2019) 108741]
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Publication date: 15 December 2019Source: Ecological Modelling, Volume 414Author(s): Olalla Díaz-Yáñez, Blas Mola-Yudego, José Ramón González-Olabarria
Effects of an aquaculture pesticide (diflubenzuron) on non-target shrimp populations: Extrapolation from laboratory experiments to the risk of population decline
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): S. Jannicke Moe, Dag Ø. Hjermann, Elisa Ravagnan, Renée K. BechmannAbstractMarine aquaculture production has lately experienced high economic growth, but also concerns related to production and environmental contamination. For the Atlantic salmon aquaculture industry, the ectoparasitic crustacean salmon louse (Lepeophtheirus salmonis) has become a major problem. A common method to control populations of salmon lice within farm cages is treatment by various pharmaceuticals. One of the pesticides used in...
Socio-ecological mechanisms for persistence of native Australian grasses under pressure from nitrogen runoff and invasive species
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): Vivek A. Thampi, Chris T. Bauch, Madhur AnandAbstractNitrogen runoff in certain southeastern Australian grasslands promotes the invasion of exotic grassland species at the expense of native species. Mitigation programs can reduce runoff and thus support native species, but their success may require the awareness and support of local populations. This situation represents a coupled socio-ecological system, since nitrogen runoff caused by local populations can enable the invasion of exotic grassland species...
Local management in a regional context: Simulations with process-based species distribution models
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): Tim M. Szewczyk, Tom Lee, Mark J. Ducey, Matthew E. Aiello-Lammens, Hayley Bibaud, Jenica M. AllenAbstractEcological models often strive to inform conservation and management decisions. Occurrence-based distribution models may aid regional management strategies, though many management decisions require information beyond the likely presence of a species provided by such models. Process-based distribution models predict geographic distributions using environmental relationships with biological processes...
Simulation of a forest-grass ecological network in a typical desert oasis based on multiple scenes
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): Kai Su, Qiang Yu, Depeng Yue, Qibin Zhang, Lan Yang, Zhili Liu, Teng Niu, Xiaoting SunAbstractMany areas on the earth are facing the threat of ecological degradation, and unreasonable economic development has further exacerbated environmental problems. Constructing ecological security patterns based on an ecological network is such an integrated approach to protecting regional ecological sustainability. This paper selected Denko County of Bayannaoer City, Inner Mongolia, which is located in the desert oasis...
A stochastic individual-based model for the growth of a stand of Japanese knotweed including mowing as a management technique
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): François Lavallée, Charline Smadi, Isabelle Alvarez, Björn Reineking, François-Marie Martin, Fanny Dommanget, Sophie MartinAbstractInvasive alien species are a growing threat for the environment and health. They also have a major economic impact, as they can damage many infrastructures. The Japanese knotweed (Fallopia japonica), present in North America, Northern and Central Europe as well as in Australia and New Zealand, is listed by the World Conservation Union as one of the world's worst invasive...
Ecosystem changes following the eradication of invasive species: Evaluation of various eradication scenarios by computer simulation
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s): Katsuhiko Yoshida, Kenji Hata, Kazuto Kawakami, Syuntaro Hiradate, Takeshi Osawa, Naoki KachiAbstractThe decline of the natural ecosystem on the Ogasawara Islands caused by invasive species has been an important environmental problem and projects for eradicating invasive species are currently underway. Some invasive species have proliferated in the host environment and are affecting the material cycle in the ecosystem. If the invasive species were removed from the environment, the material cycle of the...
Editorial Board
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Publication date: 1 December 2019Source: Ecological Modelling, Volume 413Author(s):
Effects of whole-tree harvesting on soil, soil water and tree growth – A dynamic modelling exercise in four long-term experiments
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Publication date: Available online 6 November 2019Source: Ecological ModellingAuthor(s): Martin Erlandsson Lampa, Salim Belyazid, Giuliana Zanchi, Cecilia AkselssonAbstractWhole tree harvesting (WTH) following final felling of productive forests is increasingly promoted as a method to extract biomass for energy purposes. Despite its importance, there is a limited number of experimental studies investigating the impacts of WTH on forest ecosystem sustainability. Modelling studies have previously been carried out to complement and explain empirical observations from four long-term WTH...