Evidence map›Paper›PMID 33823921›Full record

ArticleParasites & vectors2021

Interactive effects of biological, human and environmental factors on tick loads in Boran cattle in tropical drylands.

Richard Chepkwony, Severine van Bommel, Frank van Langevelde

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. A randomized controlled trial of Tickoff® (Parasite epidemiology and control · 2024
    Article
  11. Epidemiology of ZoonoticMicroorganisms · 2023
    Article
  12. Article
  13. Article
  14. Ecological correlates of ectoparasite load in a rodent: Complex roles of seasonality.International journal for parasitology. Parasites and wildlife · 2022
    Article
  15. Insights into Nanopesticides for Ticks: The Superbugs of Livestock.Oxidative medicine and cellular longevity · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 4 countries.

Richard ChepkwonyKenya Wildlife Service, P.O. Box 40241-00100, Nairobi, Kenya. rchepkwony74@gmail.com.
Severine van BommelStrategic Communications Group, Wageningen University, P.O. Box 8130, 6700 EW, Wageningen, The Netherlands.
Frank van LangeveldeWildlife Ecology and Conservation Group, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, The Netherlands.ORCID http://orcid.org/0000-0001-8870-0797
Kenya Wildlife Service · KEThe University of Queensland · AUWageningen University & Research · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTick-borne diseases (TBDs) are a serious threat to humans, wildlife and livestock, and cause severe economic losses in many tropical drylands. The effective control of TBDs has been constrained by limited understanding of what determines tick loads in animals. We tested interactive effects of several biological factors (sex, age and body condition), one environmental factor (rainfall) and one human factor (management type) on tick loads in animals.

methodsWe collected ticks on animals at four sampling sites in the semi-arid savanna area of Laikipia County, Kenya, of which two are commercial ranches and the other two are open pastoral grazing areas. From 2017 to 2019, we collected a total of 2038 ticks from 619 domestic animals from various cattle and camel herds and from 79 tranquilised wild animals.

resultsGenerally, wild herbivores (zebras, rhinos and elephants) had higher tick loads than domestic animals. As 83% of the tick samples were taken from Boran cattle, we analysed tick load in these cattle in more detail. Boran cattle had high tick loads in the wet season, especially those animals in poor condition. No differences were found between female and male cattle, regardless of season. The calves had high tick loads during both the wet and dry seasons, whereas the sub-adult and adult cattle had less ticks during the dry season. Cattle on the intensively managed ranches had lower tick load than those in the transhumant management system.

conclusionThese findings highlight the importance of establishing effective control of ticks on domestic animals in transhumant management systems as tick loads were high on these animals in both the wet and dry season.

Indexed as

EnvironmentTropical ClimateAge FactorsAnimalsAnimals, DomesticAnimals, WildCamelusCattleCattle DiseasesDisease ManagementFemaleHumansKenyaLivestockMaleRainBoran cattleCommercial ranchesTick-borne diseasesTranshumanceTropical areasWildlife

Identifiers

PMID33823921
PMCPMC8025487
OpenAlexW3141073955

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.