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Spatial and Temporal Characteristics of Pastoral Mobility in the Far North Region, Cameroon: Data Analysis and Modeling.

Xiao N, Cai S, Moritz M, Garabed R, Pomeroy LW - PLoS ONE (2015)

Bottom Line: Modes M3 and M4 on the other hand are the situations when pastoralists stay in a campsite for a relatively short period of time (<20 days) when moving between seasonal grazing areas.These four modes are used to develop a spatial-temporal mobility (STM) model that can be used to estimate the probability of a mobile pastoralist residing at a location at any time.We compare the STM model with two reference models and the experiments suggest that the STM model can effectively capture and predict the space-time dynamics of pastoral mobility in our study area.

View Article: PubMed Central - PubMed

Affiliation: Department of Geography, The Ohio State University, Columbus, OH, United States of America.

ABSTRACT
Modeling the movements of humans and animals is critical to understanding the transmission of infectious diseases in complex social and ecological systems. In this paper, we focus on the movements of pastoralists in the Far North Region of Cameroon, who follow an annual transhumance by moving between rainy and dry season pastures. Describing, summarizing, and modeling the transhumance movements in the region are important steps for understanding the role these movements may play in the transmission of infectious diseases affecting humans and animals. We collected data on this transhumance system for four years using a combination of surveys and GPS mapping. An analysis on the spatial and temporal characteristics of pastoral mobility suggests four transhumance modes, each with its own properties. Modes M1 and M2 represent the type of transhumance movements where pastoralists settle in a campsite for a relatively long period of time (≥20 days) and then move around the area without specific directions within a seasonal grazing area. Modes M3 and M4 on the other hand are the situations when pastoralists stay in a campsite for a relatively short period of time (<20 days) when moving between seasonal grazing areas. These four modes are used to develop a spatial-temporal mobility (STM) model that can be used to estimate the probability of a mobile pastoralist residing at a location at any time. We compare the STM model with two reference models and the experiments suggest that the STM model can effectively capture and predict the space-time dynamics of pastoral mobility in our study area.

No MeSH data available.


Related in: MedlinePlus

Transhumance modes for pastoralists in groups 1 and 2 (A) and group 3 (B).
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pone.0131697.g005: Transhumance modes for pastoralists in groups 1 and 2 (A) and group 3 (B).

Mentions: The transhumance movements in the first two groups can be conceptualized in Fig 5A where they establish sojourn campsites in the south during the rainy season and we denote this type of transhumance mode as M1. In the end of the rainy season, the pastoralists start to move toward the floodplain and set up transit campsites en route to the floodplain. We denote their transhumance mode in this period of time as M3. In the floodplain, the pastoralists generally stay there over the cold and hot dry seasons, until the beginning of the rainy season. They utilize sojourn campsites during this period of time and we denote this type of transhumance as M2. We separate modes M1 and M2 because they occur in different parts of the region and in different seasons. Finally when the rain starts in June, pastoralists start to move back to their southern lands and we use M3 again to denote their transhumance patterns because the pastoralists use similar routes but in an opposite direction as they move in the end of the rainy season.


Spatial and Temporal Characteristics of Pastoral Mobility in the Far North Region, Cameroon: Data Analysis and Modeling.

Xiao N, Cai S, Moritz M, Garabed R, Pomeroy LW - PLoS ONE (2015)

Transhumance modes for pastoralists in groups 1 and 2 (A) and group 3 (B).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4495066&req=5

pone.0131697.g005: Transhumance modes for pastoralists in groups 1 and 2 (A) and group 3 (B).
Mentions: The transhumance movements in the first two groups can be conceptualized in Fig 5A where they establish sojourn campsites in the south during the rainy season and we denote this type of transhumance mode as M1. In the end of the rainy season, the pastoralists start to move toward the floodplain and set up transit campsites en route to the floodplain. We denote their transhumance mode in this period of time as M3. In the floodplain, the pastoralists generally stay there over the cold and hot dry seasons, until the beginning of the rainy season. They utilize sojourn campsites during this period of time and we denote this type of transhumance as M2. We separate modes M1 and M2 because they occur in different parts of the region and in different seasons. Finally when the rain starts in June, pastoralists start to move back to their southern lands and we use M3 again to denote their transhumance patterns because the pastoralists use similar routes but in an opposite direction as they move in the end of the rainy season.

Bottom Line: Modes M3 and M4 on the other hand are the situations when pastoralists stay in a campsite for a relatively short period of time (<20 days) when moving between seasonal grazing areas.These four modes are used to develop a spatial-temporal mobility (STM) model that can be used to estimate the probability of a mobile pastoralist residing at a location at any time.We compare the STM model with two reference models and the experiments suggest that the STM model can effectively capture and predict the space-time dynamics of pastoral mobility in our study area.

View Article: PubMed Central - PubMed

Affiliation: Department of Geography, The Ohio State University, Columbus, OH, United States of America.

ABSTRACT
Modeling the movements of humans and animals is critical to understanding the transmission of infectious diseases in complex social and ecological systems. In this paper, we focus on the movements of pastoralists in the Far North Region of Cameroon, who follow an annual transhumance by moving between rainy and dry season pastures. Describing, summarizing, and modeling the transhumance movements in the region are important steps for understanding the role these movements may play in the transmission of infectious diseases affecting humans and animals. We collected data on this transhumance system for four years using a combination of surveys and GPS mapping. An analysis on the spatial and temporal characteristics of pastoral mobility suggests four transhumance modes, each with its own properties. Modes M1 and M2 represent the type of transhumance movements where pastoralists settle in a campsite for a relatively long period of time (≥20 days) and then move around the area without specific directions within a seasonal grazing area. Modes M3 and M4 on the other hand are the situations when pastoralists stay in a campsite for a relatively short period of time (<20 days) when moving between seasonal grazing areas. These four modes are used to develop a spatial-temporal mobility (STM) model that can be used to estimate the probability of a mobile pastoralist residing at a location at any time. We compare the STM model with two reference models and the experiments suggest that the STM model can effectively capture and predict the space-time dynamics of pastoral mobility in our study area.

No MeSH data available.


Related in: MedlinePlus