Abstract:
:Species composition of wild reservoir hosts can influence the transmission and maintenance of multi-host vector borne pathogens. The 'pace of life' hypothesis proposes that the life history strategy of reservoir hosts can influence pathogen transmission of vector borne generalist pathogens. We use empirical data to parameterize a mathematical model that investigates the impacts of host life history traits on vector transmission dynamics of the vector-borne multi-host parasite Trypanosoma cruzi in habitats characterized by different degrees of deforestation and varying host community structure. The model considers susceptible and infected vector and host populations. When comparing the proportion of vectors infected with T. cruzi predicted by the model with empirical data, we found a trend of increasing vector infection as anthropogenic landscape disturbance increases for both data and model output. The model's vector infection rates were significantly lower than empirical results, but when incorporating host congenital transmission in the model, vector infection approaches field data. We conclude that intervened habitats associated with r-selected host species communities predict higher proportions of infected vectors.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Erazo D,Cordovez J,Cabrera C,Calzada JE,Saldaña A,Gottdenker NLdoi
10.1017/S0031182017001287subject
Has Abstractpub_date
2017-12-01 00:00:00pages
1881-1889issue
14eissn
0031-1820issn
1469-8161pii
S0031182017001287journal_volume
144pub_type
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