Theoretical Ecology最新文献_第5页

Effects of predator novelty on intraguild predation communities with adaptive prey defense 捕食者新颖性对具有自适应猎物防御的内部捕食群落的影响

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-04-20 DOI: 10.1007/s12080-022-00534-0

Kurt E. Ingeman, M. Novak

引用次数: 0

Diverse perspectives from diverse scholars are vital for theoretical biology 来自不同学者的不同观点对理论生物学至关重要

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-03-26 DOI: 10.1007/s12080-022-00533-1

Allison K. Shaw

引用次数: 0

Effects of noise correlation and imperfect data sampling on indicators of critical slowing down 噪声相关性和不完全数据采样对临界减速指标的影响

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-02-20 DOI: 10.1007/s12080-022-00532-2

T. Kaur, P. Dutta

引用次数: 2

What’s in a resource gradient? Comparing alternative cues for foraging in dynamic environments via movement, perception, and memory 什么是资源梯度?通过运动、感知和记忆比较动态环境中觅食的不同线索

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-02-18 DOI: 10.1007/s12080-022-00542-0

W. Fagan, Cole Saborio, T. Hoffman, E. Gurarie, R. S. Cantrell, C. Cosner

引用次数: 0

Suppressing evolution of antibiotic resistance through environmental switching 通过环境转换抑制抗生素耐药性的进化

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-02-10 DOI: 10.1007/s12080-022-00530-4

Bryce Morsky, Dervis Can Vural

{"title":"Suppressing evolution of antibiotic resistance through environmental switching","authors":"Bryce Morsky, Dervis Can Vural","doi":"10.1007/s12080-022-00530-4","DOIUrl":"https://doi.org/10.1007/s12080-022-00530-4","url":null,"abstract":"Ecology and evolution under changing environments are important in many subfields of biology with implications for medicine. Here, we explore an example: the consequences of fluctuating environments on the emergence of antibiotic resistance, which is an immense and growing problem. Typically, high doses of antibiotics are employed to eliminate the infection quickly and minimize the time under which resistance may emerge. However, this strategy may not be optimal. Since competition can reduce fitness and resistance typically has a reproductive cost, resistant mutants’ fitness can depend on their environment. Here we show conditions under which environmental varying fitness can be exploited to prevent the emergence of resistance. We develop a stochastic Lotka-Volterra model of a microbial system with competing phenotypes: a wild strain susceptible to the antibiotic, and a mutant strain that is resistant. We investigate the impact of various pulsed applications of antibiotics on population suppression. Leveraging competition, we show how a strategy of environmental switching can suppress the infection while avoiding resistant mutants. We discuss limitations of the procedure depending on the microbe and pharmacodynamics and methods to ameliorate them.","PeriodicalId":51198,"journal":{"name":"Theoretical Ecology","volume":"69 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Climate warming and dispersal strategies determine species persistence in a metacommunity 气候变暖和扩散策略决定了物种在元群落中的持久性

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-02-04 DOI: 10.1007/s12080-022-00531-3

Arzoo Narang, Partha Sharathi Dutta

{"title":"Climate warming and dispersal strategies determine species persistence in a metacommunity","authors":"Arzoo Narang, Partha Sharathi Dutta","doi":"10.1007/s12080-022-00531-3","DOIUrl":"https://doi.org/10.1007/s12080-022-00531-3","url":null,"abstract":"Dispersal is crucial in governing species response toward climate warming. Previous studies suggest that intermediate and density-dependent dispersal enables the functioning of a metacommunity, stabilizing populations at local and regional scales. Here, we consider a spatial ecological model with temperature-dependent traits to elucidate dispersal effects in stabilizing population dynamics under climate warming. Specifically, we analyze the effect of species temperature-dependent life-history traits on a metacommunity dynamics with diverse dispersal strategies (i.e., constant and density-dependent dispersal), tracked along with different dispersal rates of species (relative dispersal). At low and intermediate temperatures, different dispersal strategies synchronize or desynchronize the population dynamics depending upon dispersal rates. However, high temperatures completely synchronize the population trailing constant dispersal, weakening the stabilizing dynamics. Furthermore, density-dependent dispersal strongly affects the stability of metacommunity at high temperatures by increasing or decreasing spatial synchrony depending on dispersal rates. In metacommunities with many patches, conditional upon temperature, species abundance exhibits coexistence of synchronous and asynchronous oscillations, namely the chimera state. Overall, our results show that rising temperature may destabilize the dynamics by synchronizing populations; however, some dispersal mechanisms might impede the adverse outcomes.","PeriodicalId":51198,"journal":{"name":"Theoretical Ecology","volume":"42 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

When host populations move north, but disease moves south: Counter-intuitive impacts of climate change on disease spread 当宿主种群向北迁移，但疾病向南迁移：气候变化对疾病传播的反直觉影响

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-01-28 DOI: 10.1007/s12080-022-00551-z

E. J. Moran, M. Martignoni, N. Lecomte, P. Leighton, A. Hurford

引用次数: 0

Analysis of the invasion of a city by Aedes aegypti via mathematical models and Bayesian statistics 埃及伊蚊入侵城市的数学模型与贝叶斯统计分析

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-01-26 DOI: 10.1007/s12080-022-00528-y

Octavio Augusto Bruzzone, María Eugenia Utgés

{"title":"Analysis of the invasion of a city by Aedes aegypti via mathematical models and Bayesian statistics","authors":"Octavio Augusto Bruzzone, María Eugenia Utgés","doi":"10.1007/s12080-022-00528-y","DOIUrl":"https://doi.org/10.1007/s12080-022-00528-y","url":null,"abstract":"We analysed data from the invasion of a city by Aedes aegypti by using a series of models based on Fisher’s reaction–diffusion equation with Richard’s growth model and Bayesian statistics. The model that best explains the invasion of the city was defined through a step-by-step process of model selection based on a series of candidate models. As explanatory variables, we used the effect of urbanization type and climate variables on the parameters of Fisher’s equation: carrying capacity (K), population growth rate (r), and the diffusion coefficient (D). The resulting model is a reaction–diffusion equation with a near-zero shape parameter, similar to a Gompertz-type growth. The population advance rate of 60.19 m/day allowed Aedes aegypti to fully occupy a medium-sized city in 5 months from the estimated date of colonization. We found that the carrying capacity was dependent on temperature and urbanization type. While the results are coherent with existing literature on this species, most of the theory on population dynamics of Aedes aegypti usually assumes a logistic growth instead of Gompertz population dynamics. This type of growth is faster than logistic at densities lower than the inflexion point but slower at higher densities. Therefore, it is possible that in a regime in which the K depends on the climate, Gompertz dynamics could stabilize the population of this species of mosquito faster than assumed by the existing theory.","PeriodicalId":51198,"journal":{"name":"Theoretical Ecology","volume":"62 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Correction to: Every variance function, including Taylor's power law of fluctuation scaling, can be produced by any location-scale family of distributions with positive mean and variance 每一个方差函数，包括泰勒波动标度幂定律，都可以由任何位置尺度的均值和方差均为正的分布族产生

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-01-20 DOI: 10.1007/s12080-021-00525-7

Joel E. Cohen

引用次数: 1

Coexistence in spatiotemporally fluctuating environments 在时空波动环境中的共存

IF 1.6 4区环境科学与生态学

Theoretical Ecology Pub Date : 2022-01-20 DOI: 10.1007/s12080-022-00549-7

Evan C. Johnson, A. Hastings

引用次数: 2