Effect of land cover and landscape fragmentation on anopheline mosquito abundance and diversity in an important Colombian malaria endemic region

Autor: Margarita M. Correa, Nelson Naranjo-Díaz, Daniel S. Rincón, Alba Marín, Juan C. Hernandez-Valencia
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0301 basic medicine
Topography
Marine and Aquatic Sciences
Disease Vectors
Mosquitoes
Geographical locations
Diversity index
0302 clinical medicine
Medical Conditions
Abundance (ecology)
Medicine and Health Sciences
Animal Management
Multidisciplinary
biology
Ecology
Geography
Anopheles
Eukaryota
Agriculture
Biodiversity
Insects
Infectious Diseases
Shannon Index
Medicine
Brazil
Research Article
Freshwater Environments
Livestock
Arthropoda
Ecological Metrics
Science
030231 tropical medicine
Land cover
Mosquito Vectors
Colombia
Spatial distribution
03 medical and health sciences
Surface Water
Parasitic Diseases
Animals
Relative species abundance
Ecosystem
Landforms
Ecology and Environmental Sciences
Fragmentation (computing)
Organisms
Species diversity
Biology and Life Sciences
Aquatic Environments
Species Diversity
Geomorphology
South America
biology.organism_classification
Tropical Diseases
Invertebrates
Insect Vectors
Malaria
Species Interactions
030104 developmental biology
Wetlands
Earth Sciences
People and places
Hydrology
Zoology
Entomology
Zdroj: PLoS ONE
PLoS ONE, Vol 15, Iss 10, p e0240207 (2020)
ISSN: 1932-6203
Popis: Landscape structure influences the distribution and abundance of anopheline mosquitoes and has an indirect impact on malaria transmission. This work aimed to determine the effect of land cover and landscape fragmentation on anopheline mosquito abundance and diversity in an important Colombian malaria endemic area, the Bajo Cauca region. Diversity indices were calculated for Anopheles mosquitoes collected in various localities of the region. Land cover types were characterized using orthorectified aerial photographs to estimate landscape metrics. The relationship between landscape fragmentation and species diversity was evaluated by regression analysis. The correlation between species abundance and land cover types was determined using canonical correspondence analyses. Results showed a statistically significant tendency for a lower diversity of the Anopheles community in landscapes with higher patch number, patch density and effective mesh size. For most species, there was evidence of a significant relationship between species abundance and land covers modified by anthropic activities which generate forest loss. These results indicate that activities that modify the landscape structure and land cover composition generate changes that affect the spatial distribution and composition of epidemiologically-important Anopheles species, which may impact malaria distribution in a region. This information is useful to guide control interventions that promote unfavorable landscapes for malaria vector propagation.
Databáze: OpenAIRE
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