scholarly journals Impacts of biodiversity and biodiversity loss on zoonotic diseases

2021 ◽  
Vol 118 (17) ◽  
pp. e2023540118
Author(s):  
Felicia Keesing ◽  
Richard S. Ostfeld

Zoonotic diseases are infectious diseases of humans caused by pathogens that are shared between humans and other vertebrate animals. Previously, pristine natural areas with high biodiversity were seen as likely sources of new zoonotic pathogens, suggesting that biodiversity could have negative impacts on human health. At the same time, biodiversity has been recognized as potentially benefiting human health by reducing the transmission of some pathogens that have already established themselves in human populations. These apparently opposing effects of biodiversity in human health may now be reconcilable. Recent research demonstrates that some taxa are much more likely to be zoonotic hosts than others are, and that these animals often proliferate in human-dominated landscapes, increasing the likelihood of spillover. In less-disturbed areas, however, these zoonotic reservoir hosts are less abundant and nonreservoirs predominate. Thus, biodiversity loss appears to increase the risk of human exposure to both new and established zoonotic pathogens. This new synthesis of the effects of biodiversity on zoonotic diseases presents an opportunity to articulate the next generation of research questions that can inform management and policy. Future studies should focus on collecting and analyzing data on the diversity, abundance, and capacity to transmit of the taxa that actually share zoonotic pathogens with us. To predict and prevent future epidemics, researchers should also focus on how these metrics change in response to human impacts on the environment, and how human behaviors can mitigate these effects. Restoration of biodiversity is an important frontier in the management of zoonotic disease risk.

2021 ◽  
Vol 8 ◽  
Author(s):  
Serge Morand ◽  
Claire Lajaunie

Deforestation is a major cause of biodiversity loss with a negative impact on human health. This study explores at global scale whether the loss and gain of forest cover and the rise of oil palm plantations can promote outbreaks of vector-borne and zoonotic diseases. Taking into account the human population growth, we find that the increases in outbreaks of zoonotic and vector-borne diseases from 1990 to 2016 are linked with deforestation, mostly in tropical countries, and with reforestation, mostly in temperate countries. We also find that outbreaks of vector-borne diseases are associated with the increase in areas of palm oil plantations. Our study gives new support for a link between global deforestation and outbreaks of zoonotic and vector-borne diseases as well as evidences that reforestation and plantations may also contribute to epidemics of infectious diseases. The results are discussed in light of the importance of forests for biodiversity, livelihoods and human health and the need to urgently build an international governance framework to ensure the preservation of forests and the ecosystem services they provide, including the regulation of diseases. We develop recommendations to scientists, public health officers and policymakers who should reconcile the need to preserve biodiversity while taking into account the health risks posed by lack or mismanagement of forests.


2021 ◽  
pp. 73-90
Author(s):  
Gyanendra Tripathi ◽  
Dhirendra Kumar Srivastava ◽  
Vishal Mishra

2021 ◽  
Author(s):  
Marzieh Sepahvand ◽  
Forough Ghasemi ◽  
Hossein Mirseyed Hosseini

The excessive presence of nitrite and nitrate in the environmental matrixes has raised concerns among the scientific communities due to their negative impacts on human health and living organisms. Considering...


2018 ◽  
Vol 17 (01) ◽  
pp. 1830001 ◽  
Author(s):  
Devi Singh ◽  
Neeraj Kumari ◽  
Pooja Sharma

Noise pollution due to road traffic is a potential threat to human health. Since it is a global hazard, the rapid urbanization and exponential traffic growth have aggravated the problem. Population residing along the busy traffic lanes is continuously exposed to the sound levels which are above the permissible limits. This constant exposure to noise pollution is a cause of concern as it leads to several adverse impacts on human health. Traffic noise causes irritation and annoyance, sleep disturbances, cardiovascular disease, risk of stroke, diabetes, hypertension and loss of hearing. It results in decreased work performance. The present review highlights the serious health hazards of road traffic noise (RTN) which needs to be curbed. Preventive measures of noise pollution can help in combating noise-induced health hazards and increased work performance.


2021 ◽  
Vol 107 (3) ◽  
pp. 295-319
Author(s):  
Julia Renee Prince-Buitenhuys ◽  
Colleen M. Cheverko ◽  
Eric J. Bartelink ◽  
Veronica Wunderlich ◽  
Kristina Crawford

The long history of human-animal interactions in California prior to European contact is frequently not considered when setting ecological baselines and, by consequence, when planning conservation and management expectations and strategies for native species. This article reviews archaeological perspectives that explore the relationship between human niche construction, plant and wildlife populations, and human health in pre-European contact Central California, with an emphasis on the Central Valley and Delta, the surrounding foothills, and the San Francisco Bay Area. A summary of the archaeological record for Central California is provided, along with how niche construction and related evolutionary based models have been used in prehistoric California. Examples of the influences of human niche construction on flora, fauna, and human health from the archaeological and ethnographic record are then discussed. This information is tied to modern wildlife research and management practices that would serve contemporary fish and wildlife management given that human influences on species “natural” habitats and ecological baselines extends much further into the past than current ecological baselines and wildlife management strategies traditionally recognize.


2021 ◽  
Vol 9 ◽  
Author(s):  
Luz A. de Wit ◽  
Taylor H. Ricketts

The introduction of non-native species and deforestation are both important drivers of environmental change that can also facilitate the geographic spread of zoonotic pathogens and increase disease risk in humans. With ongoing trends in globalization and land-use conversions, introduced species and deforestation are ever more likely to pose threats to human health. Here, we used rat lungworm disease, an emerging zoonotic disease caused by Angiostrongylus cantonensis and maintained by invasive rats and snails, to explore how these two forms of environmental change can impact zoonotic disease risk. We used logistic regressions to examine the role of global trade in the introduction of A. cantonensis at a country level and used model estimates to predict the probability of introduction as a function of trade. We then used hurdle-based regression models to examine the association between deforestation and rat lungworm disease in two regions where A. cantonensis is already established: Hawaii and Thailand. At the global scale, we found the trade of horticultural products to be an important driver in the spread of A. cantonensis and that the majority of countries at high risk of future A. cantonensis introduction are islands. At country scales, we found deforestation to increase the per-capita risk of A. cantonensis exposure in Hawaii and Thailand. Our study provides a preliminary view of the associations between species introductions, deforestation, and risk of A. cantonensis exposure in people. Better understanding how these two widespread and overlapping forms of environmental change affect human health can inform international biosecurity protocols, invasive species management, and land-use policies.


2021 ◽  
Vol 118 (40) ◽  
pp. e2022216118 ◽  
Author(s):  
Kelsie E. Long ◽  
Larissa Schneider ◽  
Simon E. Connor ◽  
Niamh Shulmeister ◽  
Janet Finn ◽  
...  

The impacts of human-induced environmental change that characterize the Anthropocene are not felt equally across the globe. In the tropics, the potential for the sudden collapse of ecosystems in response to multiple interacting pressures has been of increasing concern in ecological and conservation research. The tropical ecosystems of Papua New Guinea are areas of diverse rainforest flora and fauna, inhabited by human populations that are equally diverse, both culturally and linguistically. These people and the ecosystems they rely on are being put under increasing pressure from mineral resource extraction, population growth, land clearing, invasive species, and novel pollutants. This study details the last ∼90 y of impacts on ecosystem dynamics in one of the most biologically diverse, yet poorly understood, tropical wetland ecosystems of the region. The lake is listed as a Ramsar wetland of international importance, yet, since initial European contact in the 1930s and the opening of mineral resource extraction facilities in the 1990s, there has been a dramatic increase in deforestation and an influx of people to the area. Using multiproxy paleoenvironmental records from lake sediments, we show how these anthropogenic impacts have transformed Lake Kutubu. The recent collapse of algal communities represents an ecological tipping point that is likely to have ongoing repercussions for this important wetland’s ecosystems. We argue that the incorporation of an adequate historical perspective into models for wetland management and conservation is critical in understanding how to mitigate the impacts of ecological catastrophes such as biodiversity loss.


Author(s):  
Rob Alkemade ◽  
Jan Janse ◽  
Wilbert van Rooij ◽  
Yongyut Trisurat

Biodiversity is decreasing at high rates due to a number of human impacts. The GLOBIO3 model has been developed to assess human-induced changes in terrestrial biodiversity at national, regional, and global levels. Recently, GLOBIO-aquatic has been developed for inland aquatic ecosystems. These models are built on simple cause–effect relationships between environmental drivers and biodiversity, based on meta-analyses of literature data. The mean abundance of original species relative to their abundance in undisturbed ecosystems (MSA) is used as the indicator for biodiversity. Changes in drivers are derived from the IMAGE 2.4 model. Drivers considered are land-cover change, land-use intensity, fragmentation, climate change, atmospheric nitrogen deposition, excess of nutrients, infrastructure development, and river flow deviation. GLOBIO addresses (1) the impacts of environmental drivers on MSA and their relative importance; (2) expected trends under various future scenarios; and (3) the likely effects of various policy-response options. The changes in biodiversity can be assessed by the GLOBIO model at different geographical levels. The application depends largely on the availability of future projections of drivers. From the different analyses at the different geographical levels, it can be seen that biodiversity loss, in terms of MSA, will continue, and current policies may only reduce the rate of loss.


2020 ◽  
pp. 183-210
Author(s):  
Donald C. Behringer ◽  
Chelsea L. Wood ◽  
Martin Krkošek ◽  
David Bushek

Infectious marine diseases have profound impacts on fisheries and aquaculture through their effects on growth, fecundity, mortality, and marketability. Economic losses have motivated research to minimize the negative impacts of disease on these industries. However, this relationship is reciprocal, as fishing and aquaculture can shape disease transmission. The effects of fisheries and aquaculture on disease are scale dependent, with different outcomes at the population, metapopulation, community, and ecosystem levels. Management approaches are limited in fisheries, and intense in aquaculture, sometimes with undesirable impacts on wild species. Management needs can be particularly intense in hatcheries, where stocks are sensitive and kept at high densities. Increased interest in microbiome–disease interactions are opening up new opportunities to manage marine diseases in aquaculture. Solutions for marine diseases in fisheries and aquaculture may ultimately improve human health by reducing exposure to pathogens and increasing nutrient quality, but could negatively impact human health through exposure to antibiotics and other chemicals used to treat parasites.


Author(s):  
Thomas K. Budge ◽  
Arian Pregenzer

As biodiversity, ecosystem function, and ecosystem services become more closely linked with human well-being at all scales, the study of ecology takes on increasing social, economic, and political importance. However, when compared with other disciplines long linked with human well-being, such as medicine, chemistry, and physics, the technical tools and instruments of the ecologist have generally lagged behind those of the others. This disparity is beginning to be overcome with the increasing use of biotelemetric techniques, microtechnologies, satellite and airborne imagery, geographic information systems (GIS), and both regional and global data networks. We believe that the value and efficiency of ecosystem studies can advance significantly with more widespread use of existing technologies, and with the adaptation of technologies currently used in other disciplines to ecosystem studies. More importantly, the broader use of these technologies is critical for contributing to the preservation of biodiversity and the development of sustainable natural resource use by humans. The concept of human management of biodiversity and natural systems is a contentious one. However, we assert that as human population and resource consumption continue to increase, biodiversity and resource sustainability will only be preserved by increasing management efforts—if not of the biodiversity and resources themselves, then of human impacts on them. The technologies described in this chapter will help enable better management efforts. In this context, biodiversity refers not only to numbers of species (i.e., richness) in an arbitrarily defined area, but also to species abundances within that area. Sustainability refers to the maintenance of natural systems, biodiversity, and resources for the benefit of future generations. Arid-land grazing systems support human social systems and economies in regions all over the world, and can be expected to play increasingly critical roles as human populations increase. Further, grazing systems represent a nexus of natural and domesticated systems. In these systems, native biodiversity exists side by side with introduced species and populations, and in fact can benefit from them.


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