Evidence map›Paper›PMID 18196279›Full record

SynthesisOecologia2008

Scaling of offspring number and mass to plant and animal size: model and meta-analysis.

A Jan Hendriks, Christian Mulder

Abstract readMeta-Analysis
In one paragraph

Synthesis in Oecologia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Negative allometry of egg size among 29 species of drosophilid flies.bioRxiv : the preprint server for biology · 2026
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  7. A stochastic differential game approach toward animal migration.Theory in biosciences = Theorie in den Biowissenschaften · 2019
    Article
  8. Article
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  12. Article
  13. The marine diversity spectrum.The Journal of animal ecology · 2014
    Article
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  19. Article
  20. 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

2 authors.

A Jan HendriksDepartment of Environmental Science, Radboud University Nijmegen, PO Box 9010, 6500 GL, Nijmegen, The Netherlands. a.j.hendriks@science.ru.nl
Christian Mulder

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The scaling of reproductive parameters to body size is important for understanding ecological and evolutionary patterns. Here, we derived allometric relationships for the number and mass of seeds, eggs and neonates from an existing model on population production. In a separate meta-analysis, we collected 79 empirical regressions on offspring mass and number covering different taxa and various habitats. The literature review served as a validation of the model, whereas, vice versa, consistency of isolated regressions with each other and related ecological quantities was checked with the model. The total offspring mass delivered in a reproductive event scaled to adult size with slopes in the range of about 3/4 to 1. Exponents for individual seed, egg and neonate mass varied around 1/2 for most heterotherms and between 3/4 and 1 for most homeotherms. The scaling of the progeny number released in a sowing, clutch or litter was opposite to that of their size. The linear regressions fitted into a triangular envelope where maximum offspring mass is limited by the size of the adult. Minimum seed and egg size scaled with weight exponents of approximately 0 up to 1/4. These patterns can be explained by the influence of parents on the fate of their offspring, covering the continuum of r-strategists (pelagic-aquatic, arial, most invertebrates, heterotherms) and K-strategists (littoral-terrestrial, some invertebrates, homeotherms).

Indexed as

Models, BiologicalPlant Physiological PhenomenaAnimalsAnimals, NewbornBiomassBody SizeBody WeightClutch SizeEcosystemLitter SizeReproductionSeeds

Identifiers

PMID18196279
PMCPMC2270366

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.