Evidence map›Paper›PMID 30864071›Full record

ArticleEnvironmental geochemistry and health2020

A method to determine the combined effects of climate change (temperature and humidity) and eggshell thickness on water loss from bird eggs.

L-M Veldsman, H Kylin, P Bronkhorst, I Engelbrecht, H Bouwman

Abstract read
PubMed Publisher
In one paragraph

Article in Environmental geochemistry and health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

2 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
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

5 authors at 2 institutions in 2 countries.

L-M VeldsmanResearch Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
H KylinResearch Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
P BronkhorstResearch Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
I EngelbrechtResearch Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
H BouwmanResearch Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa. henk.bouwman@nwu.ac.za.ORCID http://orcid.org/0000-0002-7983-7502
North-West University · ZALinköping University · SE

Funding

North-West University General funds
6 · The paper itself

Abstract

Differences in bird eggshell thicknesses occur due to numerous factors, including thinning due to persistent organic pollutants. Not only does thinning weaken the shell; weaker shells combined with elevated ambient temperature and changes in humidities may result in changes in water loss rates from the egg contents. Therefore, thinner eggshells raise concern of water being lost faster than normal at lower relative humidities, which may affect hatching. To investigate the combined effects, we developed and tested an effective method that measures water loss through different thickness eggshells at controlled temperatures and relative humidities to assist in ascertaining the combined effects of climate change (temperature and humidity) and changes in eggshell thickness on bird reproduction. The fastest rate of loss was at 40% RH at 40 °C (0.1 mL/cm

Indexed as

Climate ChangeAnimalsBirdsChickensEggsEgg ShellHumidityTemperatureWaterWaterClimate changeEggshell thicknessEnvironmental contaminationPersistent organic pollutionWater loss

Identifiers

PMID30864071
OpenAlexW2922085354

What OpenQuestion holds

Textmetadata
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.