Menü
Deutsch | English

Neue wissenschaftliche Aufsätze


Ecological Modelling

International Journal on Ecological Modelling and Systems Ecology

ScienceDirect Publication: Ecological Modelling
ScienceDirect RSS
Development of mungbean model (MungGro) and its application for climate change impact analysis in Bangladesh
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Jatish C. Biswas, Naveen Kalra, M. Maniruzzaman, A.K. Choudhury, M.A.H.S. Jahan, M.B. Hossain, S. Ishtiaque, M.M. Haque, Wais Kabir Mungbean (Vigna radiate L. Wilczek) is an important pulse crop for South Asian region. Its productivity is low and usually grown under water limited environments. Generally, irrigation at around flowering stage is provided if soil moisture is limiting. Its growth and yield is highly sensitive to fluctuations in climatic conditions, especially...
A novel operation chart for cascade hydropower system to alleviate ecological degradation in hydrological extremes
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Ziyu Ding, Guohua Fang, Xin Wen, Qiaofeng Tan, Xianfeng Huang, Xiaohui Lei, Yu Tian, Jin Quan Incorporating limited ecological curves, a novel operation chart optimization method is proposed for the multipurpose hydropower systems, which is capable of improving power generation and overall ecological condition and alleviating ecological degradation under extreme dry or wet conditions. The method mainly includes: (1) determine the optimal ecological discharge using weighted usable...
Disequilibrium and relaxation times for species responses to climate change
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Craig Loehle Climate change is widely expected to pose a threat to many of Earth’s plant and animal species. Based on climate models, a multitude of studies project that certain species will not be able to migrate fast enough to keep up with changing environmental conditions, presenting a greater risk of their possible extinction. However, many of these studies are based on correlative climate niche models that represent the current living conditions of species and may not consider their ability...
Decreasing fractal dimensions as a strategy for oceanic wildlife conservation: Application to species with large migration patterns
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): J.C. Flores Wildlife dispersion patterns are responses of populations confronting variable environmental conditions. Additionally, industry depredation in oceans develops spatial patterns to optimize wildlife capture. Soft scaling conditions between protected and exploited marine zones define operative fractional dimensions for industry and wildlife. When reduction of the fractional dimension of industry ship trajectories is suitably established, the chances for wildlife to survive are increased...
Coupling agent-based with equation-based models to study spatially explicit megapopulation dynamics
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Nicolas Marilleau, Christophe Lang, Patrick Giraudoux The incorporation of the spatial heterogeneity of real landscapes into population dynamics remains extremely difficult. We propose combining equation-based modelling (EBM) and agent-based modelling (ABM) to overcome the difficulties classically encountered. ABM facilitates the description of entities that act according to specific rules evolving on various scales. However, a large number of entities may lead to computational difficulties...
Challenges of modelling water quality in a shallow prairie lake with seasonal ice cover
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Julie A. Terry, Amir Sadeghian, Helen M. Baulch, Steven C. Chapra, Karl-Erich Lindenschmidt The link between under ice processes and open water eutrophication dynamics has been proven in the field. Water quality models still lack the capability to capture the connection between both environments. The hydrodynamic-ecological model CE-QUAL-W2 is being applied to a eutrophic drinking water reservoir on the Canadian Prairies as part of larger collaborative research project. CE-QUAL-W2 is one of...
Using reverse-time egg transport analysis for predicting Asian carp spawning grounds in the Illinois River
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Zhenduo Zhu, David T. Soong, Tatiana Garcia, Mina Shahed Behrouz, Steven E. Butler, Elizabeth A. Murphy, Matthew J. Diana, James J. Duncker, David H. Wahl Identifying spawning grounds of Asian carp is important for determining the reproductive front of invasive populations. Ichthyoplankton monitoring along the Illinois Waterway (IWW) has provided information on abundances of Asian carp eggs in the IWW's navigation pools. Post-fertilization times derived from egg development stages...
Quantifying population-level effects of water temperature, flow velocity and chemical-induced reproduction depression: A simulation study with smallmouth bass
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Yan Li, Vicki S. Blazer, Tyler Wagner Evaluating stochastic abiotic factors and their combined effects on fish and wildlife populations have been challenging in environmental sciences. Contributing to this challenge is the paucity of data describing how observations made on individuals related to exposure to chemical compounds ultimately effect population vital rates, and how this exposure interacts with other abiotic drivers. Using three smallmouth bass populations in Pennsylvania as a case...
Species extinctions strengthen the relationship between biodiversity and resource use efficiency
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Evangelia Smeti, Daniel L. Roelke, George Tsirtsis, Sofie Spatharis Evidence from terrestrial ecosystems indicates that biodiversity relates to ecosystem functions (BEF), but this relationship varies in its strength, in part, as a function of habitat connectivity and fragmentation. In primary producers, common proxies of ecosystem function include productivity and resource use efficiency. In aquatic primary producers, macroecological studies have observed BEF variance, where ecosystems with...
Analyzing fine-scale spatiotemporal drivers of wildfire in a forest landscape model
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Alan A. Ager, Ana M.G. Barros, Michelle A. Day, Haiganoush K. Preisler, Thomas A. Spies, John Bolte We developed and applied a wildfire simulation package in the Envision agent-based landscape modelling system. The wildfire package combines statistical modelling of fire occurrence with a high-resolution, mechanistic wildfire spread model that can capture fine scale effects of fire feedbacks and fuel management, and replicate restoration strategies at scales that are meaningful to forest...
Combining different metrics to measure the ecological connectivity of two mangrove landscapes in the Municipality of Florianópolis, Southern Brazil
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Bárbara H.A. d’Acampora, Ester Higueras, Emilia Román The mangrove landscapes of the Ratones River and Itacorubi, located in the Municipality of Florianópolis, South of Brazil, are environmentally fragmented due to anthropogenic use of the soil, which hinders the dispersal of their native species. For the maintenance of ecological connectivity, this paper aims to identify the most critical habitat fragments of both landscape mangroves and to restore its ecosystem benefits. However...
Process-based vs. ad-hoc methods to estimate mortality using carcass surveys data: A review and a note about evidence complacency
24. September 2018
Publication date: 24 September 2018 Source:Ecological Modelling, Volume 384 Author(s): Guillaume Péron To quantify the rate at which wildlife die from anthropogenic sources like wind farms and poisoning, one may look for the carcasses. The number of detected carcasses, or the absence of carcasses, however needs to be corrected for imperfect detection and early removal by scavengers. To perform this correction, there exist more than a dozen “open” variants of the Lincoln-Petersen “closed-population” capture-recapture estimator. These different variants typically yield very...
Editorial Board
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383
Special issue: Ecological modelling global conference 2016: 20th biennial ISEM conference, 8–12 May 2016, Towson, Maryland, USA
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): Hsiao-Hsuan Wang, Marianna Taffi, Clément Chion, Brenda Rashleigh, Tin Klanjšček, Lora Harris, Peter Goethals, Brian D. Fath
On the use of global DEMs in ecological modelling and the accuracy of new bare-earth DEMs
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): Vítězslav Moudrý, Vincent Lecours, Kateřina Gdulová, Lukáš Gábor, Lucie Moudrá, Jan Kropáček, Jan Wild It is now widely acknowledged that the increasing availability of remotely sensed data facilitates ecological modelling. Digital elevation models (DEMs) are arguably one of the most common remote sensing products used in this context. Topographic indices (e.g. slope, orientation, rugosity) derived from DEMs are widely used as surrogates for field-measured environmental...
To what extent do uncertainty and sensitivity analyses help unravel the influence of microscale physical and biological drivers in soil carbon dynamics models?
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): L.E. Vogel, V. Pot, D. Makowski, P. Garnier, P.C. Baveye Soil respiration causes the second largest C flux between ecosystems and the atmosphere. Emerging soil carbon dynamics models consider the complex interplay of microscale interactions between the physical and biological drivers of soil organic matter decomposition occurring in the 3D soil architecture. They are expected to provide a way to upscale results to the macroscopic level and as such appear as an alternative modelling approach...
Additional empirical evidence on the intrinsic trend to stationarity in the long run and the nested relationship between abiotic, biotic and anthropogenic factors starting from the organic...
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): Ricardo A. Rodríguez, Janelle M. Duncan, Juan D. Delgado, Michael J. Vanni, Rodrigo Riera, María J. González Conventional ecology lacks a non-contingent theory on the relationship between abiotic, biotic and anthropogenic factors under natural or quasi-natural conditions. As a result, since ecology is the science that studies the interaction between ecological factors in nested complex systems, we should recognize that ecology needs significant enhancements to understand the functioning...
A test of functional convergence in carbon fluxes from coupled C and N cycles in Arctic tundra
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): Kelseyann S. Wright, Adrian V. Rocha Arctic ecosystems exhibit functional convergence in Net Ecosystem Exchange (NEE’s) of CO2 response to light, air temperature, the Normalized Difference Vegetation Index (NDVI), and Leaf Area Index (LAI), potentially simplifying predictions of climate change impacts on the arctic C cycle over space and time. This convergence is hypothesized to be induced by tightly coupled carbon and nitrogen cycles, but has never been explicitly tested. We used model-data...
Exploring multiple presence-absence data structures in ecology
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): János Podani, Péter Ódor, Simone Fattorini, Giovanni Strona, Jani Heino, Dénes Schmera Ecological studies may produce presence-absence data sets for different taxonomic groups, with varying spatial resolution and temporal coverage. Comparisons of these data are needed to extract meaningful information on the background ecological factors explaining community patterns, to improve our understanding of how beta diversity and its components vary among communities and biogeographical...
Random subset feature selection for ecological niche models of wildfire activity in Western North America
10. September 2018
Publication date: 10 September 2018 Source:Ecological Modelling, Volume 383 Author(s): James L. Tracy, Antonio Trabucco, A. Michelle Lawing, J. Tomasz Giermakowski, Maria Tchakerian, Gail M. Drus, Robert N. Coulson Variable selection in ecological niche modelling can influence model projections to a degree comparable to variations in future climate scenarios. Consequently, it is important to select feature (variable) subsets for optimizing model performance and characterizing variability. We utilize a novel random subset feature selection algorithm (RSFSA) for niche...