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Triggering the tragedy: The simulated effects of alternative fisher goals on marine fisheries and fisheries policy Ecol. Complex. (IF 3.5) Pub Date : 2024-02-07 Ashleigh Arton, Ernesto Carrella, Jens Koed Madsen, Richard M. Bailey
Avoiding the ‘tragedy of the commons’ remains a challenge in many natural resource systems, and open-access fisheries are well-studied in this context. Here, an agent-based model is used to investigate how variation in fisher goals change what policies best solve the tragedy. When fishers’ goals are easily satisfied, commons problems are avoided without management interventions, but the imposition
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Eco-epidemiological predator–prey models: A review of models in ordinary differential equations Ecol. Complex. (IF 3.5) Pub Date : 2023-12-26 Enith A. Gómez-Hernández, Felipe N. Moreno-Gómez, Fernando Córdova-Lepe, Moisés Bravo-Gaete, Nelson A. Velásquez, Hugo A. Benítez
Eco-epidemiology integrates ecological and epidemiological approaches to analyze both the impact of infectious diseases on ecological communities and how interspecific interactions can alter disease dynamics. With the aim of extracting general principles of eco-epidemiological dynamics, this article presents a review of the literature focusing on predator–prey type ordinary differential equation models
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Complexity and biocomplexity: Overview of some historical aspects and philosophical basis Ecol. Complex. (IF 3.5) Pub Date : 2023-12-19 Srdjan Kesić
Complexity has radically changed human understanding of the world environment and continues challenging our best scientific theories. In a rapidly changing research landscape, historical and philosophical insights into Complexity can heighten awareness of the proper theoretical perspectives scientists should adopt to advance the study of biocomplexity, including ecological complexity. The present work
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Geographical boundaries and historical explanations of within-scale resilience Ecol. Complex. (IF 3.5) Pub Date : 2023-11-25 Colby J. Clark
Historically, the idea that ecosystems possess geographical boundaries has been dismissed as both naïve and impractical. But advancements in remote sensing have led to the reliable detection of spatial regimes that seem to provide early warning of a potential critical transition. This invites a reexamination of the role geographical boundaries play in explanations of the resilience concept. Despite
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A Framework for Community Ecology: Species Pools, Filters, and Traits, Paul A. Keddy, Daniel C. Laughlin, Cambridge University Press, Cambridge, UK (2022), 370 pages, $44.99 (paperback), ISBN: 9781316512609. Also available as an E-book Ecol. Complex. (IF 3.5) Pub Date : 2023-10-23 Saheed O. Jimoh
Abstract not available
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Agent-based diffusion in predation systems with Beddington–DeAngelis response Ecol. Complex. (IF 3.5) Pub Date : 2023-09-29 Shikun Wang, Yuanshi Wang
Understanding dynamical behavior of a spatially distributed population is crucial to conservation and management of endangered species. This paper considers predator–prey systems with Beddington–DeAngelis functional response, where the predator moves between source–sink patches asymmetrically and acts as an agent. Our aim is to show how agent-based diffusion affects dynamics of the system and total
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Changing webs—Variation of complex networks over a tidal cycle in an intertidal rocky reef Ecol. Complex. (IF 3.5) Pub Date : 2023-09-23 Catarina Vinagre, Vanessa Mendonça
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Dynamical systems modeling for structural understanding of social-ecological systems: A primer Ecol. Complex. (IF 3.5) Pub Date : 2023-08-28 Sonja Radosavljevic, Thomas Banitz, Volker Grimm, Lars-Göran Johansson, Emilie Lindkvist, Maja Schlüter, Petri Ylikoski
Dynamical systems modeling (DSM) explores how a system evolves in time when its elements and the relationships between them are known. The basic idea is that the structure of a dynamical system, expressed by coupled differential or difference equations, determines attractors of the system and, in turn, its behavior. This leads to structural understanding that can provide insights into qualitative properties
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Why everything is connected to everything else Ecol. Complex. (IF 3.5) Pub Date : 2023-08-02 Jonathan D. Phillips
In Earth surface systems (ESS), everything is connected to everything else, an aphorism often called the First Law of Ecology and of geography. Such linkages are not always direct and unmediated, but many ESS, represented as networks of interacting components, attain or approach full, direct connectivity among components. The question is how and why this happens at the system or network scale. The
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Dynamical analysis of a diffusion plant-wrack model with delay Ecol. Complex. (IF 3.5) Pub Date : 2023-07-26 Quanli Ji, Ranchao Wu, Biao Liu
In this paper, in view of the senescence of plant and the decay of wrack, time delays are introduced into the plant-wrack model. The effects of wrack decay and time delay on the dynamical behaviors of the diffusive plant-wrack model are studied analytically and numerically. When the delay is zero, the wrack decay will induce the change of stability of the unique equilibrium point, further lead to the
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Evaluating the role of environmental familiarity and behaviour in the success of wildlife translocation: A grizzly bear case study using agent-based modelling Ecol. Complex. (IF 3.5) Pub Date : 2023-04-24 Alejandra Zubiria-Perez, Christopher Bone, Gordon Stenhouse
Human-carnivore systems are built on multi-scalar complex processes often resulting in conflicts that force wildlife managers to address what are conceived as problem individuals. In North America, the grizzly bear (Ursus arctos) is often involved in human-bear conflict with management measures such as translocations, in which problem individuals are moved to new areas, being used to reduce conflict
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On the degradation of forest ecosystems by extreme events: Statistical Model Checking of a hybrid model Ecol. Complex. (IF 3.5) Pub Date : 2023-04-06 Guillaume Cantin, Benoît Delahaye, Beatriz M. Funatsu
In this paper, we study the vulnerability of forest ecosystems perturbed by extreme events, such as those arising from climate change. To investigate the complex interactions between the biological dynamics of the forest and the climatic activity, we construct an original hybrid model, obtained by coupling a continuous reaction–diffusion system, which describes the spatio-temporal dynamics of the forest
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Future spatial distribution of Diaphorina citri in Mexico under climate change models Ecol. Complex. (IF 3.5) Pub Date : 2023-04-05 Oliver Rodríguez-Aguilar, José López-Collado, Alejandra Soto-Estrada, Mónica de la Cruz Vargas-Mendoza, Clemente de Jesús García-Avila
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Quantity and quality of suitable matrices matter in reducing the negative effect of fragmentation Ecol. Complex. (IF 3.5) Pub Date : 2023-03-27 Bruno Travassos-Britto, Camila Hohlenwerger, José Miranda, Pedro Luís Bernardo da Rocha
The negative effect of fragmentation is one of the main concerns in the study of biodiversity loss in landscape ecology. The use of the matrix has been considered an important factor because it can change a population's relationship with the configuration of the landscape. A systematic way to assess the effect of matrix quality in fragmented landscapes could lead to a better understanding of how matrices
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Integrals of life: Tracking ecosystem spatial heterogeneity from space through the area under the curve of the parametric Rao’s Q index Ecol. Complex. (IF 3.5) Pub Date : 2023-02-14 Elisa Thouverai, Matteo Marcantonio, Jonathan Lenoir, Mariasole Galfré, Elisa Marchetto, Giovanni Bacaro, Roberto Cazzolla Gatti, Daniele Da Re, Michele Di Musciano, Reinhard Furrer, Marco Malavasi, Vítězslav Moudrý, Jakub Nowosad, Franco Pedrotti, Raffaele Pelorosso, Giovanna Pezzi, Petra Šímová, Carlo Ricotta, Sonia Silvestri, Enrico Tordoni, Duccio Rocchini
Spatio-ecological heterogeneity is strongly linked to many ecological processes and functions such as plant species diversity patterns and change, metapopulation dynamics, and gene flow. Remote sensing is particularly useful for measuring spatial heterogeneity of ecosystems over wide regions with repeated measurements in space and time. Besides, developing free and open source algorithms for ecological
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How to model the local interaction in the predator–prey system at slow diffusion in a heterogeneous environment? Ecol. Complex. (IF 3.5) Pub Date : 2022-12-13 Toan D. Ha, Vyacheslav G. Tsybulin, Pavel A. Zelenchuk
We examine the nonlinear reaction–diffusion–advection equations to modeling of the predator–prey system under heterogeneous carrying capacity of the prey, and Holling type II functional response. When advection and diffusion fluxes are absent or small, we detect the discrepancy between the resource (carrying capacity) and species distributions. The large diffusion eliminates this effect. We propose
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Scaling from optimal behavior to population dynamics and ecosystem function Ecol. Complex. (IF 3.5) Pub Date : 2022-12-12 Emil F. Frølich, Uffe H. Thygesen, Ken H. Andersen
While behavioral responses of individual organisms can be predicted with optimal foraging theory, the theory of how individual behavior feeds back to population and ecosystem dynamics has not been fully explored. Ecological models of trophic interactions incorporating behavior of entire populations commonly assume either that populations act as one when making decisions, that behavior is slowly varying
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Estimating termite population size using spatial statistics for termite tunnel patterns Ecol. Complex. (IF 3.5) Pub Date : 2022-12-09 Seung Woo Sim, Sang-Hee Lee
Subterranean termites build underground tunnels for foraging. The obtained food is transported to the nest through these tunnels, and consumed to maintain the termite colony. In this process, termites can cause damage to wooden structures. To develop effective control strategies to reduce termite damage, it is important to know the sizes of the termite populations in the tunnels. In this study, we
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Mobility unevenness in rock–paper–scissors models Ecol. Complex. (IF 3.5) Pub Date : 2022-12-05 J. Menezes, S. Rodrigues, S. Batista
We investigate a tritrophic system whose cyclic dominance is modelled by the rock–paper–scissors game. We consider that organisms of one or two species are affected by movement limitations, which unbalances the cyclic spatial game. Performing stochastic simulations, we show that mobility unevenness controls the population dynamics. In the case of one slow species, the predominant species depends on
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Good predictors for the fixation probability on complex networks of multi-player games using territorial interactions Ecol. Complex. (IF 3.5) Pub Date : 2022-11-16 Pedro H.T. Schimit, Fábio H. Pereira, Mark Broom
In 2012 Broom and Rychtar developed a new framework to consider the evolution of a population over a non-homogeneous underlying structure, where fitness depends upon multiplayer interactions amongst the individuals within the population played in groups of various sizes (including one). This included the independent model, and as a special case the territorial raider model, which has been considered
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Socio-ecological contagion in Veganville Ecol. Complex. (IF 3.5) Pub Date : 2022-09-05 Thomas Elliot
In order to meet the 2015 Paris Agreement for 1.5 °C global warming, per capita emissions need to come down to 2.9 tonnes by 2030. Food systems are known to be a significant source of an individual's carbon footprint and demand attention in sustainability management. The objective of this research is to conceptualise and define an intersection between contagion theory and socio-ecological systems models
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Structural sensitivity in the functional responses of predator–prey models Ecol. Complex. (IF 3.5) Pub Date : 2022-08-04 Sarah K. Wyse, Maria M. Martignoni, May Anne Mata, Eric Foxall, Rebecca C. Tyson
In mathematical modelling, several different functional forms can often be used to fit a data set equally well, especially if the data is sparse. In such cases, these mathematically different but similar looking functional forms are typically considered interchangeable. Recent work, however, shows that similar functional responses may nonetheless result in significantly different bifurcation points
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Susceptible-infectious-susceptible (SIS) model with virus mutation in a variable population size Ecol. Complex. (IF 3.5) Pub Date : 2022-05-29 Ayse Peker Dobie
The complex dynamics of a contagious disease in which populations experience horizontal and vertical transmissions, size variation, and virus mutations are of considerable practical and theoretical interest. We model such a system by dividing a population into three distinct groups: susceptibles (S), C-infected (C) and F-infected (F), based on the Susceptible-Infectious-Susceptible (SIS) model. Once
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Unipartite and bipartite mycorrhizal networks of Abies religiosa forests: Incorporating network theory into applied ecology of conifer species and forest management Ecol. Complex. (IF 3.5) Pub Date : 2022-04-15 Andrés Argüelles-Moyao, Mariana Benítez, Ana E. Escalante, Roberto Garibay-Orijel
Abies religiosa's forests are severely endangered as a result of climate change; to save this species and its biological interactions, population assisted migration is discussed in forest management, but not in the microbial ecology field. Our objectives were to analyze its mycorrhizal networks; and, with this data, to identify potential facilitator plants and it's most important mycorrhizal fungal
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Drivers of plant individual-based pollinator visitation network topology in an arid ecosystem Ecol. Complex. (IF 3.5) Pub Date : 2022-04-11 Jenna Braun, Christopher J. Lortie
Interactions with pollinators underlie the structure and function of plant communities. Network analysis is a valuable tool for studying plant-pollinator interactions, but these networks are most frequently built by aggregating interactions at the species level. Interactions are between individuals and an advantage of individual-based networks is the ability to integrate inter-individual variation
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A suite of ecological indicators for evaluating the integrity of structural eco-complexity in Mexican forests Ecol. Complex. (IF 3.5) Pub Date : 2022-04-02 Franz Mora
This paper presents a conceptual framework for analyzing forest complexity as the combination of the variety of species and key structures that are associated with the composition, structure, and function of forest stands. Several spatial indicators have been developed to characterize the biodiversity, the structural complexity, and anthropogenic effects that can be observed in Mexican forests. By
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Alterations in phytotoxicity and allelochemistry in response to intraspecific variation in Parthenium hysterophorus Ecol. Complex. (IF 3.5) Pub Date : 2022-03-23 Amarpreet Kaur, Shalinder Kaur, Harminder Pal Singh, Daizy Rani Batish
Allelopathy plays a crucial role in providing competitive advantage to several alien invasive species, and assists in their establishment beyond native boundaries. Role of allelopathy in the invasion success of the alien weed, Parthenium hysterophorus is well established; however, the ecological and evolutionary factors that could affect its allelopathic interactions are relatively unexplored. In our
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Loop analysis quantifying human impact in a river ecosystem model Ecol. Complex. (IF 3.5) Pub Date : 2022-03-20 Virág Fábián, István Reguly, Ferenc Jordán
In ecological systems, multiple interactions connect various kinds of components. Strong and weak as well as positive and negative effects cause complex dynamics and often quite unpredictable processes. Human impact is added to this complexity, with all of its diverse effects. In this paper, we present a case study on the Kelian river ecosystem (Borneo), connecting pristine habitats upstream, a gold
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A predator-parasitoid mathematical model to describe the biological control of the tomato leafminer Tuta absoluta Ecol. Complex. (IF 3.5) Pub Date : 2022-03-18 Felipe Alves Rubio, Flávio Cardoso Montes, Geisel Alpízar-Brenes, José Roberto Postali Parra, Josemeri Aparecida Jamielniak, Luís Pedro Lombardi Junior, Thomas Nogueira Vilches
The Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae), or tomato leafminer, is one of the most devastating pests of tomato crops in South America. The use of parasitoids and predators as biocontrol agents of this pest is an alternative to chemical insecticides and an environmentally safe strategy. However, an outcome of a three-way interspecific interaction (pest-parasitoid-predator) may bring surprises
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Impact of vigilance on the density variations in a food chain model Ecol. Complex. (IF 3.5) Pub Date : 2022-03-15 Mainul Hossain, Shilpa Garai, Sarbari Karmakar, Nikhil Pal, Joydev Chattopadhyay
Anti-predator behavior in the form of vigilance greatly influences the dynamics of a predator-prey system. In the present work, we investigate the impact of prey vigilance in a three-species food chain model where both prey and middle predator use vigilance as a survival strategy in the presence of their respective predators. We present basic mathematical results such as local and global stability
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Net ecosystem exchange comparative analysis of the relative influence of recorded variables in well monitored ecosystems Ecol. Complex. (IF 3.5) Pub Date : 2022-03-14 David A. Wood
Weekly averaged datasets from fourteen AmeriFlux ecosystem monitoring sites spread across the Americas, processed to the FLUXNET2015 standard, are statistically evaluated to characterize their seasonal net ecosystem exchange (NEE) trends. The sites cover wetland, cropland, woodland, grassland and tundra ecosystems. Up to twenty measured variables from the sites are variously correlated with NEE. A
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Assessing the climate change effects on the distribution pattern of the Azerbaijan Mountain Newt (Neurergus crocatus) Ecol. Complex. (IF 3.5) Pub Date : 2022-03-12 Elham Ebrahimi, Yasaman Ranjbaran, Romina Sayahnia, Faraham Ahmadzadeh
Climate change is a grave danger for humans and a looming threat to Earth's biodiversity in the twenty-first century. Assessing the vulnerability of species to climate change is critical for practical conservation efforts. Due to their limited dispersal ability, amphibians are one of the most vulnerable groups of vertebrates to climate change. Among them, the species that inhabit mountains suffer a
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Role of hydrological parameters in the uncertainty in modeled soil organic carbon using a coupled water-carbon cycle model Ecol. Complex. (IF 3.5) Pub Date : 2022-03-09 Guodong Sun, Mu Mu
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“Perchance to dream?”: Assessing the effects of dispersal strategies on the fitness of expanding populations Ecol. Complex. (IF 3.5) Pub Date : 2022-03-01 N.I. Markov, E.E. Ivanko
Unraveling the patterns of animals’ movements is crucial to understanding the basics of biogeography, tracking range shifts resulting from climate change, and predicting and preventing biological invasions. Many researchers have modeled animals’ dispersal under the assumptions of various movement strategies, either predetermined or directed by external factors, but none have compared the effects of
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Is landscape fragmentation always detrimental for species conservation? The case of the Iberian lynx in central Spain Ecol. Complex. (IF 3.5) Pub Date : 2022-02-18 PEDRO ALFAYA, CARLOS T.L. DE PABLO, GERMÁN ALONSO
The patch-corridor-matrix is the most commonly used model when dealing with landscape characterization studies, but it shows relevant limitations to detect landscape heterogeneity. Other authors have used a functional approach, since it is well known that nutrient, mineral and energy flows exist among ecosystems. These flows can be perceived in boundaries between different landcovers, making possible
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Interactions between changes in land cover and potential of ecosystem services in Lithuania at temporal and spatial scale Ecol. Complex. (IF 3.5) Pub Date : 2022-02-15 Gintarė Sujetovienė, Giedrius Dabašinskas
The growing interest in ecosystem services is mainly related to land use changes. The aim of the study is to analyse spatial-temporal changes in the capacity to supply of ES in Lithuania based on land use changes in 1990–2018. The results show some balance between loss and gains of ecosystem services capacity due to land use changes. Decrease in heterogenous agricultural areas had negative impact on
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Taking the Gaia hypothesis at face value Ecol. Complex. (IF 3.5) Pub Date : 2022-02-16 Sergio Rubin, Michel Crucifix
The interest in understanding the climate-life system that has fostered the Gaia hypothesis (GH) has resulted in multiple explanatory theories, making its status unclear and controversial. This work seeks to bring some clarity to the debates surrounding the GH with the aim to make it amenable to scientific scrutiny. We discuss what it means to take the GH at face value and its implications for a potential
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Modelling Holling type II functional response in deterministic and stochastic food chain models with mass conservation Ecol. Complex. (IF 3.5) Pub Date : 2022-02-12 N. Stollenwerk, M. Aguiar, B.W. Kooi
The Rosenzweig-MacArthur predator-prey model is the building block in modeling food chain, food webs and ecosystems. There are a number of hidden assumptions involved in the derivation. For instance the prey population growth is logistic without predation but also with predation. In order to reveal these we will start with modelling a resource-predator-prey system in a closed spatially homogeneous
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Fish genomes and their evolution under the influence of ecology Ecol. Complex. (IF 3.5) Pub Date : 2022-02-07 Swarajpal Singh Randhawa, Ravindra Pawar
Environmental interactions and the effects of such interactions on the evolution of genome attributes is an intriguing area of ongoing research. Several earlier studies have delved into how the genome size (GS) and the guanine-cytosine content (GC) of genomes are shaped by species’ ecology while largely disregarding other genome attributes, such as number of chromosomes (CR), number of genes (GE),
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Optimal control of hybrid variable-order fractional coronavirus (2019-nCov) mathematical model; numerical treatments Ecol. Complex. (IF 3.5) Pub Date : 2022-02-08 N.H. Sweilam, S.M. AL-Mekhlafi, T.M. Al-Ajami
A novel coronavirus is a serious global issue and has a negative impact on the economy of Egypt. According to the publicly reported data, the first case of the novel corona virus in Egypt was reported on 14 February 2020. Total of 96753 cases were recorded in Egypt from the beginning of the pandemic until the eighteenth of August, where 96, 581 individuals were Egyptians and 172 were foreigners. Recently
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Landscape pattern changes across alpine shrub meadows gradient in warm-season pastures on the Qinghai-Tibet Plateau Ecol. Complex. (IF 3.5) Pub Date : 2022-01-28 Dawen Qian, Qian Li, Bo Fan, Xiaowei Guo, Yangong Du, Guangmin Cao
Grassland degradation has been one of the major ecological concerns on the Qinghai-Tibet Plateau (QTP) in recent years, but the degradation of alpine shrub meadows, and in particular the changes in its surface landscape pattern, has been less well assessed. This study selected a warm-season pasture on the QTP as a study area, and used an unmanned aerial vehicle (UAV) to collect aerial photographs along
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Mechanisms of action and biocontrol potential of Trichoderma against fungal plant diseases - A review Ecol. Complex. (IF 3.5) Pub Date : 2021-12-28 Saeed Ahmad Asad
Plant diseases are among the major causes of the low productivity of crops, causing yield losses of up to 30%, heralding an enormous threat to global food security. Indiscriminate use of chemical-based fungicides for controlling fungal diseases has raised severe concerns about ecosystem health. Moreover, pathogens have become insensitive against these chemicals necessitating excessive use of chemicals
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For whom is it more beneficial to stop interactions with defectors: Cooperators or defectors? Ecol. Complex. (IF 3.5) Pub Date : 2021-11-23 Shun Kurokawa
Cooperation is a mysterious evolutionary phenomenon and its mechanisms require elucidation. When cooperators can stop interactions with defectors, the evolution of cooperation becomes possible; this is one mechanism that facilitates the evolution of cooperation. Here, stopping interactions with defectors is beneficial not only for cooperators but also for defectors. The question then arises, for whom
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Tick bite risk resulting from spatially heterogeneous hazard, exposure and coping capacity Ecol. Complex. (IF 3.5) Pub Date : 2021-11-20 S.O. Vanwambeke, P.H.T. Schimit
Tick-borne diseases have long been mainly associated with forests, the primary habitat for Ixodes ricinus, where they are mostly found. However, increasing evidence shows that humans also often get bitten in gardens, parks and other habitats generally associated with lower vegetation and tick density. Therefore, to understand the risk of infection from a tick bite and thus of potential subsequent infection
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Empirical assessment of the relation between ecological connectivity and land complexity based on information-theoretic metrics Ecol. Complex. (IF 3.5) Pub Date : 2021-11-16 Derya Gülçin
Habitat fragmentation and connectivity loss pose significant threats to biodiversity at both local and landscape levels. Strategies to increase ecological connectivity and preserve strong connectivity are important for dealing with the potential threat of habitat degradation. Various metrics have been used to measure (i.e., quantify) landscape composition and configuration in landscape ecology. However
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A security game approach for strategic conservation against poaching considering food web complexities Ecol. Complex. (IF 3.5) Pub Date : 2021-11-10 Zohreh S. Gatmiry, Ashkan Hafezalkotob, Morteza Khakzar bafruei, Roya Soltani
Mitigating the poaching pressure on food webs under multiple constraints (including financial and ecological ones) remains an open problem within conservation. Within this field, mathematically modeling the effects of poaching threats on managerial decision-making is a novel approach. To fill this scientific gap, the present paper uses a security game approach to model the interactions between an environmental
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Complex dynamics of a stochastic uni-directional consumer-resource mutualism system Ecol. Complex. (IF 3.5) Pub Date : 2021-10-27 Rong Liu, Guirong Liu
Like predation and competition, mutualism is recognized as a consumer-resource interaction, which includes bi-directional and uni-directional mutualisms. In this paper, we firstly propose a stochastic uni-directional consumer-resource system of two species in which the consumer has both positive and negative effects on the resource, while the resource has only a positive effect on the consumer. We
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Explicit solution of fractional order atmosphere-soil-land plant carbon cycle system Ecol. Complex. (IF 3.5) Pub Date : 2021-10-25 Tanfer Tanriverdi, Haci Mehmet Baskonus, Adnan Ahmad Mahmud, Kalsum Abdulrahman Muhamad
In this paper, the dynamical behaviours and mathematics of the fractional order atmosphere-soil-land plant carbon cycle system involving the time dependent variable of carbon flux in atmosphere, the carbon flux of soil, and the carbon flux of animals and plants are qualitatively and numerically investigated. Explicit solutions in terms of the Mittag-Leffler functions to the terrestrial carbon cycle
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The fox who cried wolf: A keywords and literature trend analysis on the phenomenon of mesopredator release Ecol. Complex. (IF 3.5) Pub Date : 2021-10-22 Laura Saggiomo, Valentina Bar, Bruno Esattore
Human activities severely impact the distribution and behaviour of apex predators in numerous terrestrial and aquatic ecosystems, with cascading effects on several species. Mesopredator outbreaks attributable to the removal of an apex predator have often been recorded and described in the literature as “mesopredator release”. During recent decades several examples of the phenomenon have been observed
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The impact of feral domestic cats on native bird populations. Predictive modelling approach on a country scale Ecol. Complex. (IF 3.5) Pub Date : 2021-10-22 Jakub Z. Kosicki
Ecological interactions between native species are often disturbed by invasive species. However, to understand their impact on wild native animal populations on a country scale it is necessary to develop a predictive model. Therefore, I followed the species density distribution modelling approach to explore how feral domestic cats (Felis catus) along with environmental predictors determined densities
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Dynamics and bifurcations of a discrete-time prey-predator model with Allee effect on the prey population Ecol. Complex. (IF 3.5) Pub Date : 2021-09-27 Z. Eskandari, J. Alidousti, Z. Avazzadeh, J.A. Tenreiro Machado
This paper studies the dynamic behavior of a discrete-time prey-predator model. It is shown that this model undergoes codimension one and codimension two bifurcations such as transcritical, flip (period-doubling), Neimark-Sacker and strong resonances 1:2, 1:3 and 1:4. The bifurcation analysis is based on the numerical normal form method and the bifurcation scenario around the bifurcation point is determined
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Fuzzy Cognitive Maps of Social-Ecological Complexity: Applying Mental Modeler to the Bonneville Salt Flats Ecol. Complex. (IF 3.5) Pub Date : 2021-08-18 Michael P. Blacketer, Matthew T.J. Brownlee, Elizabeth D. Baldwin, Brenda B. Bowen
Although often limited in terms of extent or accuracy, mental models—i.e., explanations of the surrounding world and how things work within it—provide confidence and frameworks to navigate life's uncertainties. Unfortunately, differing and yet similar mental models held collectively by groups can lead to problematic behavior, misunderstandings, and conflict on large scales. Such challenges are likely
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Development of a framework to predict the effects of climate change on birds Ecol. Complex. (IF 3.5) Pub Date : 2021-08-11 Zahra Ramezani Moghadam, Azita Farashi, Alireza Rashki
Climate change is expected to alter biological phenomena across the world, including the numbers and distributions of species and the timing of significant events in their life cycles such as reproduction and migration. Understanding how species will respond to future climate change is essential for effective wildlife management and conservation. Accordingly, in this research, we advanced the understanding
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How seasonal variations in birth and transmission rates impact population dynamics in a basic SIR model Ecol. Complex. (IF 3.5) Pub Date : 2021-08-07 Charlotte Ward, Alex Best
The changing climate is expected to alter the timings of key events in species life-histories. These shifts are likely to have important consequences for infectious disease dynamics, as the distribution and abundance of host species will lead to a different environment for parasites. Previous work has shown how seasonality in single host traits - most commonly the reproduction rate or transmission
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High-order interactions maintain or enhance structural robustness of a coffee agroecosystem network Ecol. Complex. (IF 3.5) Pub Date : 2021-08-05 Cecilia González González, Emilio Mora Van Cauwelaert, Denis Boyer, Ivette Perfecto, John Vandermeer, Mariana Benítez
The capacity of highly diverse systems to prevail has proven difficult to explain. In addition to methodological issues, the inherent complexity of ecosystems and issues like multicausality, non-linearity and context-specificity make it hard to establish general and unidirectional explanations. Nevertheless, in recent years, high order interactions have been increasingly discussed as a mechanism that
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Stability aware spatial cut of metapopulations ecological networks Ecol. Complex. (IF 3.5) Pub Date : 2021-07-22 Dinesh Kumar, Abhishek Ajayakumar, Soumyendu Raha
Ecological complex networks are common in the study of patched ecological systems where evolving populations interact within and among the patches. The loss of the dispersal connections between patches due to reasons such as erosion of migration corridors and road construction can cause an undesirable partitioning of such networks resulting in instability or negative impact on the metapopulations.