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ArticleExperimental & applied acarology2025

Influence of hosts on the oviposition and hatching of engorged females Amblyomma cajennense sensu stricto (Acari: Ixodidae) with notes on new host records.

Caio P Tavares, Isabella C Sousa, Rayssa Q de Araújo, Carlos C M Ramos, Rafael M S Nogueira, Livio M Costa, João Luiz H Faccini, Hermes R Luz

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Article in Experimental & applied acarology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Caio P TavaresParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil. caioptavares@gmail.com.
Isabella C SousaParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.
Rayssa Q de AraújoParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.
Carlos C M RamosPost-Graduation Program in Animal Health Defense, State University of Maranhão, Maranhão, Brazil.
Rafael M S NogueiraPost-Graduation Program Northeast Biotechnology Network (RENORBIO), Parasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.
Livio M CostaParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.
João Luiz H FacciniParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.
Hermes R LuzParasite Control Laboratory, Federal University of Maranhão, São Luís, MA, Brazil.

Funding

CAPES - "Amazônia Legal" 0762/2020 / 88887.510068/202000CNPq - FitoAmazônia Research Network 445615/2024-9CNPq - INCT-IPA 408812/2024-9
6 · The paper itself

Abstract

The parasite-host relationships of Amblyomma cajennense sensu stricto, one of the species of the Amblyomma cajennense complex that occurs in the state of Maranhão, are poorly known and are restricted to its association with horses and humans. This study evaluated, for the first time, the effect of hosts on the oviposition of A. cajennense engorged females, naturally collected from wild animals and humans, as well as those experimentally fed on cattle and highlights the importance of the relationship between A. cajennense and different hosts in maintaining tick populations in the Amazon biome. Females fed on horses and capybaras exhibited the highest egg production efficiency (> 90%) and high hatching rates (≥ 95%), whereas, females collected from zebras and zebroids showed lowest egg production efficiency (~ 70%). The experimental infestation on cattle resulted in low hatching rates and low reproductive efficiency. The record of parasitism in zebras, zebroids, and wildebeests is unprecedented. Additionally, the finding of a female feeding in a human in the present study is a matter of concern and needs to be further investigated because of a potential candidate of this tick in the transmission of the Rickettsia amblyommatis, an agent of uncertain pathogenicity.

Indexed as

AmblyommaHost-Parasite InteractionsIxodidaeOvipositionTick InfestationsAnimalsBrazilCattleFemaleHumansAmazonAmblyomma cajennense ixodidaeIxodidaeReproductive efficiencyTicks

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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.