Coexistence in host-pathogen systems
نویسنده
چکیده
Lanchier and Neuhauser have initiated the study of host-symbiont systems but have concentrated on the case in which the birth rates for unassociated hosts are equal. Here we allow the birth rates to be different and identify cases in which a host with a specialist pathogen can coexist with a second species. Our calculations suggest that it is possible for two hosts with specialist pathogens to coexist but it is not possible for a host with a specialist mutualist to coexist with a second species.
منابع مشابه
Interactions between frequency-dependent and vertical transmission in host-parasite systems.
We investigate host-pathogen dynamics and conditions for coexistence in two models incorporating frequency-dependent horizontal transmission in conjunction with vertical transmission. The first model combines frequency-dependent and uniparental vertical transmission, while the second addresses parasites transmitted vertically via both parents. For the first model, we ask how the addition of ver...
متن کاملPapaya Dieback in Malaysia: A StepTowards A New Insight of Disease Resistance
A recently published article describing the draft genome of Erwiniamallotivora BT-Mardi (1), the causal pathogen of papaya dieback infection in Peninsular Malaysia, hassignificant potential to overcome and reduce the effect of this vulnerable crop (2). The authors found that the draft genome sequenceis approximately 4824 kbp and the G+C content of the genomewas 52-54%, which is very similarto t...
متن کاملHost–Multi-Pathogen Warfare: Pathogen Interactions in Co-infected Plants
Studies of plant-pathogen interactions have historically focused on simple models of infection involving single host-single disease systems. However, plant infections often involve multiple species and/or genotypes and exhibit complexities not captured in single host-single disease systems. Here, we review recent insights into co-infection systems focusing on the dynamics of host-multi-pathogen...
متن کاملAn immuno-eco-epidemiological model of competition.
This paper introduces a novel immuno-eco-epidemiological model of competition in which one of the species is affected by a pathogen. The infected individuals from species one are structured by time-since-infection and the within-host dynamics of the pathogen and the immune response is also modelled. A novel feature of the model is the impact of the species two numbers on the ability of species ...
متن کاملSubthreshold and superthreshold coexistence of pathogen variants: the impact of host age-structure.
It is well known that in the most general epidemic models with multiple pathogen variants a competitive exclusion principle is valid, such that the variant with the highest reproduction number eliminates the rest. Mechanisms such as super-infection, coinfection, and cross-immunity can lead to pathogen polymorphism where multiple strains coexist. It is also known that variability of infectivity ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006