Identification

Title

Entomological and microclimate data logger data for the Kilombero valley in Tanzania

Abstract

Mosquito trap data from Kilombero Valley in Tanzania - a global hotspot for malaria. Since 2007, field entomologists working at Ifakara Health Institue (IHI) and at the University of Glasgow have been trapping and collecting primary malaria vectors for four villages in the Kilombero Valley: Lupiro, Kidugalo, Minepa and Sagamaganga. Trapped mosquitoes were identified to species level (Anopheles gambiae and A funestus), their sex recorded (male or female) and their abdominal status (fed or unfed) noted. When available, the daily mosquito data was consistently linked to micro climate data logger data (weather conditions on site, including averaged, minimum and maximum daytime and night time values for temperature, humidity and vapour pressure deficit). This long record allows exploring the relationship between malaria vector dynamics and related environmental conditions. Full details about this dataset can be found at https://doi.org/10.5285/89406b06-d0aa-4120-84db-a5f91b616053

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/89406b06-d0aa-4120-84db-a5f91b616053

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/89406b06-d0aa-4120-84db-a5f91b616053.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/89406b06-d0aa-4120-84db-a5f91b616053

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

health

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

Wikidata

reference date

date type

creation

effective date

2012-10-29

Keyword set

keyword value

originating controlled vocabulary

title

GeoNames

reference date

date type

creation

effective date

2006-01-01

Keyword set

keyword value

malaria

weather

climate

ENSO

Kilombero

Sagamaganga

Geographic location

West bounding longitude

28.3

East bounding longitude

40.869

North bounding latitude

-0.747

South bounding latitude

-11.827

Temporal reference

Temporal extent

Begin position

2016-06-01

End position

2017-09-30

Dataset reference date

date type

publication

effective date

2018-03-08

Frequency of update

Quality and validity

Lineage

Trapped malaria mosquitoes were identified to species level (Anopheles gambiae, Anopheles funestus and Anopheles coustani), their sex recorded (male or female) and their abdominal status (fed or unfed) noted for four villages in the Kilombero Valley, Lupiro, Kidugalo , Minepa and Sagamaganga. When available, the daily mosquito data was consistently linked to micro climate data logger data (including averaged, minimum and maximum daytime and night time values for temperature in Celcius and relative humidity in percentage). All households in a selected village were sampled monthly for one week (from Monday to Friday) before moving on to the next village. Consequently, all selected villages were visited at least five days per month over the project period (06/2016->09/2017). Two different trapping methods were employed: standard CDC traps and Mosquito Electrocuting Traps (MET). (1) Standard CDC traps were left overnight inside the studied households (indoor trapping - total night catch from 18pm to 6am). CDC light traps and batteries - CDC miniature light trap, Model 512, John Hock, Florida, USA and 12V batteries were used. Light of a small bulb attracts mosquitoes to the trap and a small rotating computer fan then sucks the insects into a collection bag or cup below. The Model 512 requires ca. 320 mAmps per hour to operate at 6.0-6.3 volts DC. We used sealed-electrolyte lead-acid 12V batteries provide power for at least 3 night's operation. The 12 volt batteries for the CDC traps were also checked at the beginning of every trapping night by voltmeter to ensure they are adequately charged. (2) Mosquito Electrocuting Traps (MET) were used to estimate mosquito abundance hourly data from 6pm to 6am (one indoor and one outdoor from 18pm to 6am). MET traps and batteries - The MET is composed of four 35 x 35 cm panels, arranged to form a square cavity into which human volunteers' legs are placed. The panels hold sets of vertical parallel stainless steel wires spaced 5 mm apart, which are electrically connected to a 24V battery-powered stable direct current (DC) power source (e.g. sealed-electrolyte lead-acid 12V batteries), thereby creating an electric potential between the wires to kill mosquitoes trying to pass through the wires, but without destroying the specimen. The power is supplied at low output, sufficient to kill mosquitoes on contact but not harming the volunteer. Dead mosquitoes were collected hourly in plastic cups and identified the following morning. Due to sporadic difficulties with the MET equipment, data from the MET collection is missing at the beginning of the study and for three weeks in June 2017. The voltage of the electric current on each panel of the grids of the MET traps was measured twice nightly using a voltmeter. All abundance data was converted from paper sheets to excel spreadsheets. A subset of mosquitoes collected was tested for malaria parasites and to verify the species using PCR/ELISA tests, thus validating the identification process in the field. Indoor temperature and humidity were recorded with tiny tag data loggers (Tiny Tag plus 2; Gemini data loggers, UK, Ltd) placed inside houses on each night of sampling, approximately 1m above the ground. The tiny tag data loggers are calibrated annually by Gemini data loggers, UK, Ltd and every weekend by placing all loggers in the same room and checking their recordings are identical. The data was downloaded weekly and converted into excel spreadsheet.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Copyright with Liverpool University, Glasgow University and Ifakara Health Institue (IHI)

Constraint set

Limitations on public access

If you reuse this data, you should cite: Kreppel, K., Govella, N.J., Caminade, C., Baylis, M., Ferguson, H. (2018). Entomological and microclimate data logger data for the Kilombero valley in Tanzania. NERC Environmental Information Data Centre https://doi.org/10.5285/89406b06-d0aa-4120-84db-a5f91b616053

Responsible organisations

Responsible party

organisation name

University of Liverpool

email address

Matthew.Baylis@liverpool.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

University of Glasgow & IHI

email address

katharina.kreppel@glasgow.ac.uk

responsible party role

author

Responsible party

organisation name

IHI

email address

govella@ihi.or.tz

responsible party role

author

Responsible party

organisation name

University of Liverpool

email address

Cyril.Caminade@liverpool.ac.uk

responsible party role

author

Responsible party

organisation name

University of Liverpool

email address

Matthew.Baylis@liverpool.ac.uk

responsible party role

author

Responsible party

organisation name

University of Glasgow

email address

Heather.Ferguson@glasgow.ac.uk

responsible party role

author

Responsible party

organisation name

NERC Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

publisher

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

UK

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2021-06-25T18:36:57

Metadata language

eng