Recovery of western black-legged tick and vertebrate populations after a destructive wildfire in an intensively-studied woodland in northern California

Journal of Vector Ecology, Journal Year: 2023, Volume and Issue: 48(1)

Published: March 16, 2023

Despite increasing severity and frequency of wildfires, knowledge about how fire impacts the ecology tick-borne pathogens is limited. In 2018, River Fire burned a forest in far-western U.S.A. where had been studied for decades. Forest structure, avifauna, large small mammals, lizards, ticks, (Anaplasma phagocytophilum, Borrelia burgdorferi, miyamotoi) were assessed after wildfire 2019 2020. Burning reduced canopy cover eliminated layer thick leaf litter that hosted free-living which over time was replaced by forbs grasses. Tick abundance vertebrate host community changed dramatically. Avian species adapted to cavity nesting became most prevalent, while number foliage-foraging increased 83% as vegetation regenerated. Nine mammalian observed on camera traps, including sentinel (black-tailed jackrabbits) reservoir hosts (western gray squirrels) B. burgdorferi. One Peromyscus sp. mouse captured but 2020, numbers rebounding (n=37), although tick infestations rodents remained sparse (0.2/rodent). However, western fence lizards (n=19) 8.6 ticks average Assays found no miyamotoi either questing or host-feeding A. phagocytophilum DNA 4% (1/23) 2019, 17% (29/173) 2020 combined, burgdorferi just 1% all collected (2/173). We conclude moderately severe can have dramatic pathogens, with changes posited continue multiple years.

Language: Английский

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Messaging Should Reflect the Nuanced Relationship between Land Change and Zoonotic Disease Risk

BioScience, Journal Year: 2022, Volume and Issue: 72(11), P. 1099 - 1104

Published: Sept. 16, 2022

Abstract A hallmark of the media publicity surrounding COVID-19 has been message that land change causes zoonotic diseases to spill over from wild animals humans. The secondary peer-reviewed literature sends a similar message. However, as indicated in primary literature, complexity interacting variables involved disease spillover makes it unlikely for such claim be universally applicable. and mainstream also differ markedly their lack nuance messaging about relationship between risk. We advocate accurate, nuanced sake local communities at greatest risk disease, scientific credibility, so proportionate attention may given other possible drivers

Language: Английский

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Season and prey identity mediate the effect of predators on parasites in rodents: a test of the healthy herds hypothesis

Oecologia, Journal Year: 2022, Volume and Issue: 201(1), P. 107 - 118

Published: Nov. 22, 2022

Language: Английский

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Cost and benefits of being social: examining the influence of sociality on faecal parasites in free-ranging rhesus macaques

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 20, 2022

Abstract Parasites and infectious diseases constitute an important challenge to the health of group-living animals. Social contact shared space can both increase disease transmission risk, while individual differences in social resources help prevent infections. For example, high status individuals those with more or stronger relationships may have better immunity and, thus, lower parasitic burden. To test for trade-offs costs benefits sociality, we quantified how load varied individual’s status, as well their weak strong affiliative a free-ranging population rhesus macaques ( Macaca mulatta ). also protect against infection under environmentally challenging situations, such natural disasters. We additionally examined impact major hurricane on sociality-parasite relationship this system. found that proximity partners, but not grooming were associated protozoa risk. was linked even after hurricane. Overall, our study highlights buffering partners provide, suggesting compensate sociality by having who tolerate presence.

Language: Английский

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Vigilância participativa: caminhos para a Saúde Única no Pantanal e na fronteira oeste

Saúde em Debate, Journal Year: 2024, Volume and Issue: 48(140)

Published: Jan. 1, 2024

RESUMO O projeto ‘Saúde Única no Pantanal: participação da sociedade na vigilância de emergência zoonoses como efeito pós-incêndios território e formação estratégias integradas’ objetivou integrar representações institucionais local; ampliar o uso do Sistema Informação em Saúde Silvestre (SISS-Geo) para monitoramento fauna; identificar áreas prioritárias construir caminhos envolvendo a (SU). Realizou webinário, apontando necessidade eventos mais amplos com lideranças cada um dos territórios escolhidos. Foram executados seminários oficinas nos estados Mato Grosso Sul (MS), gestores serviço saúde Província Santa Cruz, Bolívia, Grosso. A representatividade diferentes segmentos possibilitou articulação cidadãos locais. Nas comunidades tradicionais, foi possível abordar os impactos incêndios dar oportunidade que essas pessoas manifestassem suas prioridades demandas saúde, antes depois incêndios. Oficina Síntese realizada Corumbá, MS devolutiva resultados integração representantes instituições Brasil além prospecção priorização enfermidades serem incorporadas modelo SU Pantanal fronteira oeste Brasil.

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