Evidence map›Paper›PMID 29702585›Full record

ArticleAnimals : an open access journal from MDPI2018

Anthropogenic Food Subsidy to a Commensal Carnivore: The Value and Supply of Human Faeces in the Diet of Free-Ranging Dogs.

James R A Butler, Wendy Y Brown, Johan T du Toit

Open access · goldAbstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Neophilia in wolves and dogs.Animal cognition · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Article
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  16. Article
  17. Article
  18. Review
  19. Article
  20. The Effectiveness of Dog Population Management: A Systematic Review.Animals : an open access journal from MDPI · 2019
    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 2 countries.

James R A ButlerCSIRO Land and Water, GPO Box 2583, Brisbane, QLD 4001, Australia. james.butler@csiro.au.
Wendy Y BrownCanine and Equine Research Group, University of New England, Armidale, NSW 2351, Australia. wbrown@une.edu.au.ORCID 0000-0002-5309-3381
Johan T du ToitDepartment of Wildland Resources, Utah State University, 5230 Old Main Hill, Logan, UT 84322-5230, USA. johan.dutoit@usu.edu.ORCID 0000-0003-0705-7117
CSIRO Land and Water · AUUniversity of New England · AUUtah State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As the global population of free-ranging domestic dogs grows, there is increasing concern about impacts on human health and wildlife conservation. Effective management of dog populations requires reliable information on their diet, feeding behavior, and social ecology. Free-ranging dogs are reliant on humans, but anthropogenic food subsidies, particularly human faeces (i.e., coprophagy) have not previously been fully quantified. In this study we assess the contributions of different food types to the diet, and their influences on the social behaviour of free-ranging dogs in communal lands of rural Zimbabwe, with a focus on coprophagy. Free-ranging dog diets, body condition, and sociology were studied amongst 72 dogs over 18 months using scat analysis and direct observations. Human faeces constituted the fourth most common item in scats (56% occurrence) and contributed 21% by mass to the observed diet. Human faeces represented a valuable resource because relative to other food items it was consistently available, and of higher nutritional value than ‘sadza’ (maize porridge, the human staple and primary human-derived food), yielding 18.7% crude protein and 18.7 KJ/kg gross energy, compared to 8.3% and 18.5 KJ/kg for sadza, respectively. Human faeces had protein and energy values equivalent to mammal remains, another important food item. Dog condition was generally good, with 64% of adult females and 74% of adult males in the highest two body condition scores (on a five point scale), suggesting a plentiful and high quality food supply. Dogs largely fed alone, perhaps as a consequence of the small, inert, and spatially dispersed items that comprise their diet, and its abundance. We discuss the relationships between sanitation, human development, the supply of human faeces, female dog fertility, and population control.

Indexed as

canine nutritioncoprophagyDog Development Indexrabiesscavengingsocial ecology

Identifiers

PMID29702585
PMCPMC5981278
OpenAlexW2802174219

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.