David R. Daversa

ORCID: 0000-0002-8984-8897
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About
Contact & Profiles
Research Areas
  • Amphibian and Reptile Biology
  • Animal Behavior and Reproduction
  • Primate Behavior and Ecology
  • Evolution and Genetic Dynamics
  • Species Distribution and Climate Change
  • Plant and animal studies
  • Parasite Biology and Host Interactions
  • COVID-19 epidemiological studies
  • Animal Behavior and Welfare Studies
  • Animal and Plant Science Education
  • Morphological variations and asymmetry
  • Mosquito-borne diseases and control
  • Myxozoan Parasites in Aquatic Species
  • Climate Change and Health Impacts
  • Wildlife Ecology and Conservation
  • Virology and Viral Diseases
  • Image Processing and 3D Reconstruction
  • Ecology and Vegetation Dynamics Studies
  • Forest ecology and management
  • Vector-borne infectious diseases
  • Malaria Research and Control
  • Forest Biomass Utilization and Management
  • Forest Management and Policy
  • Aquaculture disease management and microbiota
  • Environmental DNA in Biodiversity Studies

University of California, Los Angeles
2021-2025

California Department of Conservation
2022-2024

Zoological Society of London
2017-2024

National Great Rivers Research and Education Center
2019-2024

Washington University in St. Louis
2024

California Department of Fish and Wildlife
2023

University of California, Davis
2023

University of Liverpool
2017-2022

University of Cambridge
2012-2021

Imperial College London
2021

We currently face significant, anthropogenic, global environmental challenges and the role of ecologists in mitigating these is arguably more important than ever. Consequently there an urgent need to recruit train future generations ecologists, both those whose main area ecology, but also involved geological, biological sciences. Here we present results a horizon scanning exercise that identified current facing teaching through surveys teachers, students employers ecologists. Key were...

10.1111/oik.07847 article EN Oikos 2020-09-25

Research on the ‘ecology of fear’ posits that defensive prey responses to avoid predation can cause non-lethal effects across ecological scales. Parasites also elicit in hosts with associated effects, which raises longstanding, yet unresolved question how parasites compare those predators. We developed a framework for systematically answering this all types predator–prey and host–parasite systems. Our reveals likely differences not only between predators parasites, but different parasites....

10.1098/rspb.2020.2966 article EN Proceedings of the Royal Society B Biological Sciences 2021-02-24

Abstract Climate change and infectious disease jointly impact species worldwide. In addition to causing conspicuous mortality events, these threats produce a range of non‐lethal effects that are often overlooked, yet can affect individual survival fecundity, ultimately, population viability. We develop an energetic framework structures the study climate their downstream demographic consequences. The identifies pathways by which acquisition, storage mobilisation energy required for organismal...

10.1111/1365-2435.14745 article EN cc-by-nc-nd Functional Ecology 2025-01-22

Abstract Animals switch habitats on a regular basis, and when vary in suitability for parasitism, routine habitat switching alters the frequency of parasite exposure may affect post‐infection proliferation. However, effects infection dynamics are not well understood. We performed experiments, behavioural observations field surveillance to evaluate how by adult alpine newts ( Ichthyosaura alpestris ) influences pathogenic parasite, Batrachochytrium dendrobatidis Bd ). show that exposed equal...

10.1111/1365-2435.13038 article EN Functional Ecology 2017-12-23

Risks of parasitism vary over time, with infection prevalence often fluctuating seasonal changes in the annual cycle. Identifying biological mechanisms underlying seasonality can enable better prediction and prevention future peaks. Obtaining longitudinal data on individual infections traits across seasons throughout cycle is perhaps most effective means achieving this aim, yet few studies have obtained such information for wildlife. Here, we tracked spiny common toads ( Bufo spinosus )...

10.7717/peerj.4698 article EN cc-by PeerJ 2018-05-08

Widespread amphibian declines and habitat fragmentation, coupled with advancements in tracking, have sparked increased emphasis on studying movements the use of terrestrial habitats by amphibians. Peñalara Natural Park, Sierra de Guadarrama, Central Spain, provides for a number amphibians that upland sites. In response to pressure this region tourism, we used 4 months radiotelemetry data 17 adult Common Toads (Bufo bufo) characterize movements, assess factors influencing these determine...

10.1670/11-012 article EN Journal of Herpetology 2012-12-01

Abstract Novel outbreaks of emerging pathogens require rapid responses to enable successful mitigation. We simulated a 1‐day emergency meeting where experts were engaged recommend mitigation strategies for new outbreak the amphibian fungal pathogen Batrachochytrium salamandrivorans . Despite inevitable uncertainty, suggested and discussed several possible strategies. However, their recommendations undermined by imperfect initial definitions objectives scope management. This problem is likely...

10.1111/csp2.141 article EN cc-by Conservation Science and Practice 2019-11-29

Major advancements in ecology and biodiversity conservation have been made thanks to methods for marking individually tracking animals. Marking animals is both widely used controversial due the potential consequences animal welfare, which are often incompletely evaluated prior implementation. Two outstanding knowledge gaps concerning welfare of individual their short-term behavioural impacts relative from versus handling while carrying out procedures. We addressed these through an...

10.1017/awf.2024.26 article EN cc-by-nc-nd Animal Welfare 2024-01-01

Free-living eukaryotic microbes may reduce animal diseases. We evaluated the dynamics by which micrograzers (primarily protozoa) apply top-down control on chytrid Batrachochytrium dendrobatidis ( Bd ) a devastating, panzootic pathogen of amphibians. Although consumed zoospores (∼3 μm), dispersal stage chytrids, not all species grew monoxenically zoospores. However, ubiquitous ciliate Tetrahymena pyriformis , likely co-occurs with at near its maximum rate r = 1.7 d –1 ). A functional response...

10.3389/fmicb.2020.592286 article EN cc-by Frontiers in Microbiology 2021-01-21

Lay Summary: Competition often occurs among diverse parasites within a single host, but control efforts could change its strength. We examined how the interplay between competition and shape evolution of parasite traits like drug resistance disease severity.

10.1093/emph/eoaa004 article EN cc-by Evolution Medicine and Public Health 2020-01-01

Many organisms avoid habitats posing risks of parasitism. Parasites are not generally conspicuous, however, which raises the question what cues individuals use to detect parasitism risk. Here, we provide evidence in alpine newts ( Ichthyosaura alpestris ) that non-visual from parasite-exposed conspecifics inform habitat avoidance. Alpine breed aquatic and occasionally move among adjacent terrestrial during breeding seasons. We completed experiments with whereby had access both habitats,...

10.3389/fevo.2021.636099 article EN cc-by Frontiers in Ecology and Evolution 2021-03-11

AbstractThe level of detail on host communities needed to understand multihost parasite invasions is an unresolved issue in disease ecology. Coarse community metrics that ignore functional differences between hosts, such as species richness, can be good predictors invasion outcomes. Yet if vary the extent which they maintain and transmit infections, then explicitly accounting for those may important. Through controlled mesocosm experiments modeling, we show interspecific are important...

10.1086/720638 article EN The American Naturalist 2022-04-29

The influence of intraspecific trait variation on species interactions makes trait-based approaches critical to understanding eco-evolutionary processes. Because occupy habitats that are patchily distributed in space, influenced not just by the degree but also relative proportion occurs within- versus between-patches. Advancement ecology hinges how is within and between habitat patches across landscape. We sampled larval spotted salamanders ( Ambystoma maculatum ) six spatially discrete...

10.1371/journal.pone.0299101 article EN cc-by PLoS ONE 2024-04-04

Abstract Local governments may enact ordinances that have a substantial impact on forestry operations. Direct estimation of the economic requires site-specific forest inventory data and management assumptions. In this study, we attempt to quantify, for four counties in Virginia,the area would be subjected timber harvesting restrictions under local ordinances. Ordinances restrict within buffer zones roads, streams, property boundaries were simulated study counties. Using GIS overlay analysis...

10.1093/sjaf/30.4.188 article EN Southern Journal of Applied Forestry 2006-11-01

Abstract The ecology of fear demonstrates how prey responses to avoid predation cause non-lethal effects at all ecological scales. Parasites also elicit defensive in hosts with associated effects, which raises the longstanding, yet unresolved question parasites compare those predators. We developed a framework for systematically answering this types predator and parasite systems. Our predicts that trait their should be strongest from predators do not kill individuals feed on them, but...

10.1101/766477 preprint EN cc-by-nd bioRxiv (Cold Spring Harbor Laboratory) 2019-09-18

Abstract Free-living eukaryotic microbes may reduce animal diseases. We evaluated the dynamics by which micrograzers (primarily protozoa) apply top-down control on chytrid Batrachochytrium dendrobatidis ( Bd ) a devastating, panzootic pathogen of amphibians. Although consumed zoospores (∼3 µm), dispersal stage chytrids, not all species grew monoxenically zoospores. However, ubiquitous ciliate Tetrahymena pyriformis , likely co-occurs with at near its maximum rate r = 1.7 d -1 ). A functional...

10.1101/2020.02.03.931857 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2020-02-03

Abstract Major advancements in ecology and biodiversity conservation have been made thanks to methods for marking individually tracking animals. Marking animals is both widely used controversial due the potential consequences animal welfare, which are often incompletely evaluated before implementation. Two outstanding knowledge gaps concerning welfare of individual concerns their short-term behavioural impacts relative from versus handling while carrying out procedures. We addressed these...

10.1101/2023.09.28.560063 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-09-29

Climate change and infectious disease jointly impact species worldwide.In addition to causing conspicuous mortality events, these joint threats have non-lethal effects on organismal fitness, which been relatively overlooked yet can affect vital rates hence population viability.We develop an energetics-based framework promote the study of climate their downstream demographic consequences.The identifies numerous pathways by how organisms acquire, store, mobilize energy for survival...

10.22541/au.169412033.39491316/v1 preprint EN Authorea (Authorea) 2023-09-07
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