Peer Review History

Original SubmissionMarch 15, 2023
Decision Letter - Christopher Adenyo, Editor

PONE-D-23-07690Prevalence of Toxoplasma gondii in Galapagos birds: inference of risk factors associated with dietPLOS ONE

Dear Dr. Mosquera,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

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We look forward to receiving your revised manuscript.

Kind regards,

Christopher Adenyo, Ph.D.

Academic Editor

PLOS ONE

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"JM and SZ - The Galápagos Science Center-USFQ/University of North Carolina-Chapel Hill

https://www.galapagosscience.org/

JM, IV and MLP - Université de Reims Champagne Ardenne

https://www.univ-reims.fr/

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"..This research was authorized by the Galápagos National Park Service and was conducted with support of the Galápagos Academic Institute for the Arts and Sciences (GAIAS)-Universidad San Francisco de Quito (USFQ) and the Galápagos Science Center-USFQ/University of North Carolina-Chapel Hill.."

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"JM and SZ - The Galápagos Science Center-USFQ/University of North Carolina-Chapel Hill

https://www.galapagosscience.org/

JM, IV and MLP - Université de Reims Champagne Ardenne

https://www.univ-reims.fr/

NO"

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Additional Editor Comments:

I received reviews from two experts in the study of T. gondii. Both reviewers recommended that the manuscript should be accepted. I am therefore happy to inform you that your manuscript can be published after minor edits suggested by the reviewers. Please provide responses to the issues raised by reviewer #1.

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Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

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2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: I Don't Know

Reviewer #2: N/A

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3. Have the authors made all data underlying the findings in their manuscript fully available?

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Reviewer #1: Yes

Reviewer #2: Yes

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4. Is the manuscript presented in an intelligible fashion and written in standard English?

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Reviewer #1: Yes

Reviewer #2: Yes

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5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: The authors sought to find the prevalence of T. gondii in the Galapagos birds and how the feeding behaviour of the birds influences their exposure to T. gondii infection. They found that occassionally carnivorous birds had the highest exposure to the parasite, followed by the granivore-insectivores and lastly the piscivores.

The author's sampled an appreciable number of birds to make a good inference.

I am not an expert in statistics, but I could understand the authors' analysis of the data.

I have no major correction to make on this paper.

Minor Comments

1. LIne 117 & Line 139-140 Is there a significance to the different storage conditions for the land birds and sea birds i.e. -80 and -20 degrees celcius respectively

2. Line 137-138; the authors' mentioned recording the physical conditions, age and sex of the seabirds. However, this information was not used in any analysis.

3. Line 255: Authors' should kindly reconstruct the sentence to provide more clarity.

Reviewer #2: This is unique study of T. gondii prevalence in birds from 2 areas with or without cats. The serologic test used is the most specific tests for T. gondii infection in cats. The results ae of great scientific interest. The authors should consider replacing toxoplasmosis (clinical) with T. gondii infection.

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Reviewer #1: No

Reviewer #2: Yes: Jitender P Dubey

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Revision 1

Dear Editors and Reviewers,

Thank you very much for your comments and observations on the manuscript.

Here you will find the responses to each point raised:

Journal Requirements:

1. We have ensured that the manuscript meets PLOS ONE's style requirements.

2. We have provided additional information regarding the handling of the animals and the efforts to alleviate suffering.

3. We have included the statement “The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.” in the cover letter.

4. We have removed the funding-related text from the manuscript and would like to remain with the original Funding Statement since the people mentioned are part of The Galápagos Science Center-USFQ/University of North Carolina-Chapel Hill.

5. We have uploaded the study’s minimal underlying data set as Supporting Information.

6. We remade Figure 1 using QGIS and the base map OSM Standard from OpenStreeMap. We have included the required text that provides credit to OpenStreetMap by displaying their copyright notice following their attribution guidelines.

7. We have reviewed the reference list to ensure that it is complete and correct.

Reviewers’ comments:

• We have addressed the reviewers’ minor comments and are marked as track changes in the revised version of the article.

• We have corrected the storage conditions of the samples (all samples were stored at -20°C, -80C was written by mistake).

• The recording of the physical conditions, age and sex of the seabirds is no longer mentioned in the article since it was not used in our study.

• We have reconstructed the sentence in line 255.

• We have addressed the difference between Toxoplasmosis and T. gondii infection.

Attachments
Attachment
Submitted filename: Response to Reviewers.docx
Decision Letter - Christopher Adenyo, Editor

Prevalence of Toxoplasma gondii in Galapagos birds: inference of risk factors associated with diet

PONE-D-23-07690R1

Dear Dr. Mosquera,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

Christopher Adenyo, Ph.D.

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Formally Accepted
Acceptance Letter - Christopher Adenyo, Editor

PONE-D-23-07690R1

Prevalence of Toxoplasma gondii in Galapagos birds: inference of risk factors associated with diet

Dear Dr. Mosquera:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

If we can help with anything else, please email us at plosone@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Christopher Adenyo

Academic Editor

PLOS ONE

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