Evidence map›Paper›PMID 33531493›Full record

ArticleNature communications2021

Extreme temperatures compromise male and female fertility in a large desert bird.

Mads F Schou, Maud Bonato, Anel Engelbrecht, Zanell Brand, Erik I Svensson, Julian Melgar, Pfunzo T Muvhali, Schalk W P Cloete, Charlie K Cornwallis

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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.

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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

9 authors.

Mads F SchouDepartment of Biology, Lund University, Lund, Sweden. mads.schou@biol.lu.se.ORCID http://orcid.org/0000-0001-5521-5269
Maud BonatoDepartment of Animal Sciences, University of Stellenbosch, Matieland, South Africa.ORCID http://orcid.org/0000-0002-0790-0859
Anel EngelbrechtDirectorate Animal Sciences, Western Cape Department of Agriculture, Elsenburg, South Africa.ORCID http://orcid.org/0000-0002-1372-9541
Zanell BrandDirectorate Animal Sciences, Western Cape Department of Agriculture, Elsenburg, South Africa.
Erik I SvenssonDepartment of Biology, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0001-9006-016X
Julian MelgarDepartment of Biology, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0002-5718-8580
Pfunzo T MuvhaliDepartment of Animal Sciences, University of Stellenbosch, Matieland, South Africa.ORCID http://orcid.org/0000-0001-7665-501X
Schalk W P CloeteDepartment of Animal Sciences, University of Stellenbosch, Matieland, South Africa.ORCID http://orcid.org/0000-0002-4548-5633
Charlie K CornwallisDepartment of Biology, Lund University, Lund, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Temperature has a crucial influence on the places where species can survive and reproduce. Past research has primarily focused on survival, making it unclear if temperature fluctuations constrain reproductive success, and if so whether populations harbour the potential to respond to climatic shifts. Here, using two decades of data from a large experimental breeding programme of the iconic ostrich (Struthio camelus) in South Africa, we show that the number of eggs females laid and the number of sperm males produced were highly sensitive to natural temperature extremes (ranging from -5 °C to 45 °C). This resulted in reductions in reproductive success of up to 44% with 5 °C deviations from their thermal optimum. In contrast, gamete quality was largely unaffected by temperature. Extreme temperatures also did not expose trade-offs between gametic traits. Instead, some females appeared to invest more in reproducing at high temperatures, which may facilitate responses to climate change. These results show that the robustness of fertility to temperature fluctuations, and not just temperature increases, is a critical aspect of species persistence in regions predicted to undergo the greatest change in climate volatility.

Indexed as

TemperatureAnimalsFemaleFertilityHot TemperatureMaleSouth AfricaSpermatozoa

Identifiers

PMID33531493
PMCPMC7854745

What OpenQuestion holds

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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.