Insect-pathogen dynamics: Stage-specific susceptibility and insect density dependence
نویسندگان
چکیده
منابع مشابه
Modelling density-dependent resistance in insect-pathogen interactions.
We consider a mathematical model for a host-pathogen interaction where the host population is split into two categories: those susceptible to disease and those resistant to disease. Since the model was motivated by studies on insect populations, we consider a discrete-time model to reflect the discrete generations which are common among insect species. Whether an individual is born susceptible ...
متن کاملEffects of temporal variation in temperature and density dependence on insect population dynamics
Understanding the effects of environmental variation on insect populations is important in light of predictions about increasing climatic variability. This paper uses the univoltine western corn rootworm (WCR, Diabrotica virgifera virgifera LeConte) as a case study and employs deterministic and stochastic modeling to evaluate how insect population dynamics is shaped by densitydependent survival...
متن کاملMixed infections and insect–pathogen interactions
Matthew B. Thomas*, Emma L. Watson and Pablo ValverdeGarcia Department of Agricultural Sciences, Imperial College, Wye, Kent TN25 5AH, UK Centre for Population Biology, Imperial College, Silwood Park, Ascot, Berks SL5 7PY, UK Entomologı́a Agrı́cola, Departamento de Ciencias y Recursos Agrı́colas y Forestales, ETSIAM, Universidad de Córdoba, Apartado 3048, Avda. Menéndez Pidal s ⁄n, 14080 Cordoba, ...
متن کاملThe form of host density-dependence and the likelihood of host-pathogen cycles in forest-insect systems.
Forest-insect systems frequently show cyclic dynamics which has been of considerable interest to both experimental and theoretical ecologists. One important issue has been the manner in which density-dependence acting on the host population through resource competition influences the likelihood of population cycles. Existing models make contradictory predictions. Here, we explore two models tha...
متن کاملInteraction between the membrane protein of a pathogen and insect microfilament complex determines insect-vector specificity.
Many insect-transmissible pathogens are transmitted by specific insect species and not by others, even if they are closely related. The molecular mechanisms underlying such strict pathogen-insect specificity are poorly understood. Candidatus Phytoplasma asteris, OY strain, line W (OY), is a phytopathogenic bacterium transmitted from plant to plant by sap-feeding insect vectors (leafhoppers). Ou...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematical Biosciences
سال: 1997
ISSN: 0025-5564
DOI: 10.1016/s0025-5564(96)00175-7