Interactions between wild waterfowl and domestic ducks and the risk of avian influenza
(2021) BION02 20201Degree Projects in Biology
- Abstract
- Avian influenza constitutes a remarkable threat to global health. Interaction between wild and domestic ducks in the natural wetlands has been considered one of the potential risk factors for the rapid spread of the avian influenza virus. Tanguar haor is one of the vital wetlands in Bangladesh, a wintering place of millions of migratory birds. At the same time, native farmers raise their domestic ducks in a free-range farming system where ducks are left to scavenge food in the open wetland and kept in a temporary pen at night, enhancing the interaction between wild and domestic ducks.
In the recent study, I have looked at the movement pattern and habitat use of the free-range domestic ducks and the wild ducks and tried to estimate the... (More) - Avian influenza constitutes a remarkable threat to global health. Interaction between wild and domestic ducks in the natural wetlands has been considered one of the potential risk factors for the rapid spread of the avian influenza virus. Tanguar haor is one of the vital wetlands in Bangladesh, a wintering place of millions of migratory birds. At the same time, native farmers raise their domestic ducks in a free-range farming system where ducks are left to scavenge food in the open wetland and kept in a temporary pen at night, enhancing the interaction between wild and domestic ducks.
In the recent study, I have looked at the movement pattern and habitat use of the free-range domestic ducks and the wild ducks and tried to estimate the proximity of wild ducks to domestic ducks and the effect of this interaction on the seropositivity of avian influenza in the free-ranged domestic ducks of the surrounding duck farms.
I have tagged two free-ranged domestic ducks (Anus platyrhynchos) and 49 wild ducks of 6 species and analyzed their movement data. To determine the seroprevalence of avian influenza in the study area, I collected blood samples from 229 domestic ducks from 5 different farms in January 2020 and 220 domestic ducks from the same farms in February. I estimated the Home-range of the domestic ducks by the AKDE model, and the indirect ELISA test determined seropositivity of avian influenza antibodies (NP, H5, H7).
This study showed that the wild ducks and domestic ducks share similar habitats in Tanguar haor and come in very close proximity to each other. The closest distance was 3.41 meters. This close interaction was reflected in a very high NP, H5, and H7 antibody against the avian influenza virus. These findings indicate that the avian influenza virus in the Tanguar haor can spill over from domestic duck to wild duck and vice versa. (Less) - Popular Abstract
- Are the wetlands spreading avian influenza?
Wetlands in Southeast Asia are attractive wintering ground for millions of migratory birds. At the same time these wetlands are also very popular among the native farmers for duck farming. Every winter farmers bring their ducks into the wetland where they mix with the migratory birds. This interaction may lead to the possibility of spreading of a devastating zoonotic disease named avian influenza. How close to the wild ducks come to domestic ducks and does this closeness increases the prevalence of avian influenza among domestic ducks?
Avian influenza is a devastating zoonotic disease having the pandemic potential. Mixing of wild and domestic ducks in the natural wetland can lead to the... (More) - Are the wetlands spreading avian influenza?
Wetlands in Southeast Asia are attractive wintering ground for millions of migratory birds. At the same time these wetlands are also very popular among the native farmers for duck farming. Every winter farmers bring their ducks into the wetland where they mix with the migratory birds. This interaction may lead to the possibility of spreading of a devastating zoonotic disease named avian influenza. How close to the wild ducks come to domestic ducks and does this closeness increases the prevalence of avian influenza among domestic ducks?
Avian influenza is a devastating zoonotic disease having the pandemic potential. Mixing of wild and domestic ducks in the natural wetland can lead to the emergence of novel genotypes of avian influenza and possible outbreak in both human and birds. With this as a background I wanted to estimate the closeness between domestic and wild duck in of the important wetlands of Bangladesh called Tanguar haor.
To illustrate the movement pattern of the wild ducks and free ranged domestic ducks in Tanguar haor wetland, 2 domestic ducks and 49 wild ducks of 6 species were tagged with GPS tracker. And to understand the prevalence of avian influenza in the domestic ducks, I collected blood samples from the domestic ducks of the surrounding farms.
Both the domestic and wild ducks used similar habitats in the wetland area. The minimum distance between wild and domestic ducks was only 3.41 metre which indicates a strong possibility of direct contact among the ducks of both kinds. The effect of this interaction was reflected by the presence of avian influenza antibody in a very high rate (up to 100%) among the sampled domestic ducks.
Duck farming in the natural wetlands is a popular way of enhancing food security in many countries, but overpopulation of domestic ducks in the natural wetlands can be a vital reason of spreading harmful pathogens like avian influenza. Therefore, it is important to prevent the mixing of wild ducks with the domestic ducks to reduce the chance of avian influenza outbreak.
Master’s Degree Project in Biology/ 45 credits 2021
Department of Biology, Lund University
Advisor: Jonas Waldenström,
Faculty of Health and Life Sciences, Linnaeus University,
Advisor: Olof Hellgren,
Department of Biology, Lund University (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9061280
- author
- Mustafa, Koly
- supervisor
- organization
- course
- BION02 20201
- year
- 2021
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 9061280
- date added to LUP
- 2021-07-08 09:23:42
- date last changed
- 2021-07-08 09:23:42
@misc{9061280,
abstract = {{Avian influenza constitutes a remarkable threat to global health. Interaction between wild and domestic ducks in the natural wetlands has been considered one of the potential risk factors for the rapid spread of the avian influenza virus. Tanguar haor is one of the vital wetlands in Bangladesh, a wintering place of millions of migratory birds. At the same time, native farmers raise their domestic ducks in a free-range farming system where ducks are left to scavenge food in the open wetland and kept in a temporary pen at night, enhancing the interaction between wild and domestic ducks.
In the recent study, I have looked at the movement pattern and habitat use of the free-range domestic ducks and the wild ducks and tried to estimate the proximity of wild ducks to domestic ducks and the effect of this interaction on the seropositivity of avian influenza in the free-ranged domestic ducks of the surrounding duck farms.
I have tagged two free-ranged domestic ducks (Anus platyrhynchos) and 49 wild ducks of 6 species and analyzed their movement data. To determine the seroprevalence of avian influenza in the study area, I collected blood samples from 229 domestic ducks from 5 different farms in January 2020 and 220 domestic ducks from the same farms in February. I estimated the Home-range of the domestic ducks by the AKDE model, and the indirect ELISA test determined seropositivity of avian influenza antibodies (NP, H5, H7).
This study showed that the wild ducks and domestic ducks share similar habitats in Tanguar haor and come in very close proximity to each other. The closest distance was 3.41 meters. This close interaction was reflected in a very high NP, H5, and H7 antibody against the avian influenza virus. These findings indicate that the avian influenza virus in the Tanguar haor can spill over from domestic duck to wild duck and vice versa.}},
author = {{Mustafa, Koly}},
language = {{eng}},
note = {{Student Paper}},
title = {{Interactions between wild waterfowl and domestic ducks and the risk of avian influenza}},
year = {{2021}},
}