About
29
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Introduction
Miles Eric Daniels currently works at the Institute of Marine Sciences, University of California, Santa Cruz. Miles conducts applied research in landscape epidemiology and water quality modeling.
Current institution
Additional affiliations
January 2019 - January 2019
July 2016 - December 2018
September 2010 - June 2016
Publications
Publications (29)
For large, regulated rivers, operators can impact abiotic conditions for the benefit of the ecosystem, primarily by controlling the volume of discharge from upstream reservoirs. Understanding the decision space around discharge is necessary for evaluating tradeoffs between environmental and other objectives. As a result of climate change, warming w...
This study investigated how the deployment of juvenile Chinook salmon in ambient river conditions and the subsequent exposure to and infection by pathogens was associated with the changes in the expression of genes involved in immune system functioning, general stress and host development. Juvenile fish were deployed in sentinel cages for 21 days i...
Exposure to pathogens from domestic use of surface water is understudied. In many low- and middle-income countries, surface water is used for hygiene, sanitation, amenity, and recreational purposes. In this study, self-reported use of and structured observations at community ponds were collected to measure waterborne exposure across water and sanit...
Multi‐dimensional numerical models are fundamental tools for investigating biophysical processes in aquatic ecosystems. Remote sensing techniques increase the feasibility of applying such models at riverscape scales, but tests of model performance on large rivers have been limited. We evaluated the potential to develop two‐dimensional (2D) and thre...
Fisheries resources face a confluence of socio‐ecological challenges, the resolution of which requires interdisciplinary scientific information for sustainable utilization and management. The present study assessed gaps and challenges in Lake Victoria fisheries resources management for better research focus, policy formulation and improved governan...
Among four extant and declining Chinook salmon (Oncorhynchus tshawytscha) runs in California’s Central Valley, none have declined as precipitously as Sacramento River winter‐run Chinook Salmon. In addition to habitat loss, migratory winter‐run employ a life history strategy to reside and feed in stopover habitats on their way from freshwaters to th...
In California (USA), seasonal lagoons provide important oversummer rearing habitat for juvenile steelhead trout (anadromous Oncorhynchus mykiss ). However, key water quality parameters such as temperature and dissolved oxygen concentration can periodically approach or exceed the physiological tolerances of steelhead during the protracted dry season...
Disease outbreaks among visitors at venues where animals are exhibited, such as animal shows at county fairs or petting zoos, are national public health concerns. Zoonotic disease transmission at fairs can occur through a variety of pathways, including direct contact with livestock and indirect exposure through contact with animals' immediate surro...
In North America, impassable, man-made barriers block access to salmonid spawning habitat and require costly restoration efforts in the remaining habitats. Evaluating restored spawning habitat quality requires information on salmon water velocity and depth preferences, which may vary in relation to other variables (e.g., water temperature). We demo...
Interactions with livestock in public settings such as county and state fairs can expose people and other livestock to faecal material capable of spreading zoonotic enteric pathogens. The goal of this study was to understand these risks by screening livestock faeces (n = 245) and livestock bedding (n = 155) for common zoonotic pathogens (Giardia, C...
Life-cycle models (LCMs) provide a quantitative framework that allows evaluation of how management actions targeting specific life stages can have population-level effects on a species. The LCM building process is also a powerful tool that can be used to identify data gaps that exist in the knowledge of the target species, and which might strongly...
Temperature is a fundamental aspect of water quality in rivers, controlling the rate of many ecological processes. By disrupting the flow of water, large reservoirs and dams can fundamentally alter downstream temperature regimes by resetting the water temperature and flow boundary conditions at the dam release point. Therefore, it is critically imp...
The construction of dams on large rivers has negative impacts on native species. Environmental flows have been proposed as a tool to mitigate these impacts, but in order for these strategies to be effective they must account for disparate temperature and flow needs of different species.
We applied a multi‐objective approach to identify trade‐offs i...
Indigenous Mayangna and Miskitu inhabit Nicaragua’s remote Bosawás Biosphere Reserve, located in the North Caribbean Coast Autonomous Region. They are sedentary horticulturists who supplement their diet with wild game, hunting with the assistance of dogs. To test whether hunting dogs increased the risk of human exposure to protozoal zoonotic neglec...
Mechanistic-based water temperature models simulating how environmental and operational conditions affect water temperature dynamics in the Shasta/Sacramento system can aid water resource management in the region. This report outlines the process of linking two water temperature models (an upstream reservoir model to a downstream river model), incl...
Background
In many low-income settings, despite improvements in sanitation and hygiene, groundwater sources used for drinking may be contaminated with enteric pathogens such as Cryptosporidium and Giardia, which remain important causes of childhood morbidity. In this study, we examined the contribution of diarrhea caused by Cryptosporidium and Giar...
Surface and groundwater contamination with fecal pathogens is a public health concern especially in low-income settings where these sources are used untreated. We modeled observed Cryptosporidium and Giardia contamination in community ponds (n=94; 79% contaminated), deep tubewells (DTWs) (n=107; 17%), and shallow tubewells (STWs) (n=96; 19%) during...
Efforts to eradicate open defecation and improve sanitation access are unlikely to achieve health benefits unless interventions reduce microbial exposures. This study assessed human fecal contamination and pathogen exposures in rural India, and the effect of increased sanitation coverage on contamination and exposure rates. In a cross-sectional stu...
Background As part of the Total Sanitation Campaign (1999–2012), the Indian Government promoted construction and use of tens of millions of household latrines to improve public health in rural communities, areas where tubewells are often the main source of drinking water. In this study, we aimed to identify causes of tubewell contamination with the...
Globally, untreated groundwater is the primary source of drinking water for nearly a quarter of the world’s population, and in rural India ~ 77% of people rely on improved water sources that are not-piped to premises (e.g. tubewells) for drinking water. Using untreated groundwater in low-income settings, such as rural India, however, raises concern...
Cryptosporidium parvum and Giardia lamblia are zoonotic enteric protozoa of significant health concern where sanitation, hygiene, and water supplies are inadequate. We examined 85 stool samples from diarrhea patients, 111 pooled fecal samples by species across seven domestic animal types, and water from tube wells (N = 207) and ponds (N = 94) acros...
In rural India where humans and livestock animals share water sources and living spaces, and sanitation is poor, exposure to the protozoa pathogens Cryptosporidium and Giardia are important potential public health concerns. We present results from a study to measure the presence of Cryptosporidium and Giardia oocysts/cysts in community water source...
Background/Question/Methods
Protozoal pathogens causing waterborne disease are distributed worldwide and empirical evidence suggests wetlands are effective at reducing the concentrations of these pathogens under certain environmental conditions. The goal of this study was to evaluate if environmental conditions of wetlands in the Monterey Bay reg...
Giardia lamblia, is an intestinal parasite commonly found in both humans and animals worldwide that can remain infectious for days to months in the environment and cause infection with a relatively low dose. In developing countries, such as rural India, the practice of open defecation and living in close proximity to livestock creates a situation w...
Giardia lamblia, is an intestinal parasite commonly found in both humans and animals worldwide that can remain infectious for days to months in the environment and cause infection with a relatively low dose. In developing countries, such as rural India, the practice of open defecation and living in close proximity to livestock creates a situation w...
Constructed wetland systems are used to reduce pollutants and pathogens in wastewater effluent, but comparatively little is
known about pathogen transport through natural wetland habitats. Fecal protozoans, including Cryptosporidium parvum, Giardia lamblia, and Toxoplasma gondii, are waterborne pathogens of humans and animals, which are carried by...
Fecal pathogen contamination of watersheds worldwide is increasingly recognized, and natural wetlands may have an important
role in mitigating fecal pathogen pollution flowing downstream. Given that waterborne protozoa, such as Cryptosporidium and Giardia, are transported within surface waters, this study evaluated associations between fecal protoz...
