Evidence map›Paper›PMID 33906398›Full record

ArticleProceedings. Biological sciences2021

Can an introduced predator select for adaptive sex allocation?

R Heinsohn, J Au, H Kokko, M H Webb, R M Deans, R Crates, D Stojanovic

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Proceedings. Biological sciences, 2021. 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
1.6field-weighted citation impact, top 18% 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, 10 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

7 authors at 2 institutions in 2 countries.

R HeinsohnFenner School of Environment and Society, Australian National University, Canberra A.C.T. 0200, Australia.
J AuFenner School of Environment and Society, Australian National University, Canberra A.C.T. 0200, Australia.
H KokkoDepartment of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
M H WebbFenner School of Environment and Society, Australian National University, Canberra A.C.T. 0200, Australia.
R M DeansResearch School of Biology, Australian National University, Canberra A.C.T. 0200, Australia.
R CratesFenner School of Environment and Society, Australian National University, Canberra A.C.T. 0200, Australia.
D StojanovicFenner School of Environment and Society, Australian National University, Canberra A.C.T. 0200, Australia.
Australian National University · AUUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most species produce equal numbers of sons and daughters, and sex differences in survival after parental care do not usually affect this pattern. Temporary overproduction of the scarcer sex can be adaptive when generations overlap, the sexes differ in life-history expectations, and parents can anticipate future mating opportunities. However, an alternative strategy of maximizing the competitiveness of the more abundant sex in these circumstances remains unexplored. We develop theory showing how mothers can maximize reproductive value when future mate competition will be high by producing more sons in the advantageous early hatching positions within their broods. Our model for optimal birth order was supported by long-term data of offspring sex in a parrot facing catastrophic female mortality caused by introduced predators. Swift parrots (

Indexed as

ParrotsSex RatioAnimalsFemaleHumansMaleMothersReproductionSexual Behavior, Animaladult sex ratiointroduced predatorLathamus discolormate competitionoffspring sexswift parrot

Identifiers

PMID33906398
PMCPMC8080011
OpenAlexW3158853553

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.