[HTML][HTML] Diverging effects of host density and richness across biological scales drive diversity-disease outcomes

PTJ Johnson, TE Stewart Merrill, AD Dean… - Nature …, 2024 - nature.com
Understanding how biodiversity affects pathogen transmission remains an unresolved
question due to the challenges in testing potential mechanisms in natural systems and how …

Parasite diversity and coinfection determine pathogen infection success and host fitness

PTJ Johnson, JT Hoverman - Proceedings of the National …, 2012 - National Acad Sciences
While the importance of changes in host biodiversity for disease risk continues to gain
empirical support, the influence of natural variation in parasite diversity on epidemiological …

Community disassembly and disease: realistic—but not randomized—biodiversity losses enhance parasite transmission

PTJ Johnson, DM Calhoun, T Riepe… - … of the Royal …, 2019 - royalsocietypublishing.org
Debates over the relationship between biodiversity and disease dynamics underscore the
need for a more mechanistic understanding of how changes in host community composition …

Habitat heterogeneity drives the host‐diversity‐begets‐parasite‐diversity relationship: evidence from experimental and field studies

PTJ Johnson, CL Wood, MB Joseph, DL Preston… - Ecology …, 2016 - Wiley Online Library
Despite a century of research into the factors that generate and maintain biodiversity, we
know remarkably little about the drivers of parasite diversity. To identify the mechanisms …

[HTML][HTML] Measuring the shape of the biodiversity-disease relationship across systems reveals new findings and key gaps

FW Halliday, JR Rohr - Nature communications, 2019 - nature.com
Diverse host communities commonly inhibit the spread of parasites at small scales.
However, the generality of this effect remains controversial. Here, we present the analysis of …

Diversity and disease: community structure drives parasite transmission and host fitness

PTJ Johnson, RB Hartson, DJ Larson… - Ecology …, 2008 - Wiley Online Library
Abstract Changes in host diversity and community structure have been linked to disease, but
the mechanisms underlying such relationships and their applicability to non‐vector‐borne …

Host and parasite diversity jointly control disease risk in complex communities

PTJ Johnson, DL Preston… - Proceedings of the …, 2013 - National Acad Sciences
Host–parasite interactions are embedded within complex communities composed of multiple
host species and a cryptic assemblage of other parasites. To date, however, surprisingly few …

Beyond single host, single parasite interactions: Quantifying competence for complete multi‐host, multi‐parasite communities

TE Stewart Merrill, DM Calhoun… - Functional …, 2022 - Wiley Online Library
Understanding parasite transmission in communities requires knowledge of each species'
capacity to support transmission. This property,'competence', is a critical currency for …

Species diversity reduces parasite infection through cross‐generational effects on host abundance

PTJ Johnson, DL Preston, JT Hoverman… - Ecology, 2012 - Wiley Online Library
With growing interest in the effects of biodiversity on disease, there is a critical need for
studies that empirically identify the mechanisms underlying the diversity–disease …

Biodiversity decreases disease through predictable changes in host community competence

PTJ Johnson, DL Preston, JT Hoverman, KLD Richgels - Nature, 2013 - nature.com
Accelerating rates of species extinctions and disease emergence underscore the
importance of understanding how changes in biodiversity affect disease outcomes,,. Over …