Limits to reproduction and seed size-number trade-offs that shape forest dominance and future recovery



Qiu, Tong, Andrus, Robert, Aravena, Marie-Claire, Ascoli, Davide, Bergeron, Yves, Berretti, Roberta, Berveiller, Daniel, Bogdziewicz, Michal, Boivin, Thomas, Bonal, Raul
et al (show 93 more authors) (2022) Limits to reproduction and seed size-number trade-offs that shape forest dominance and future recovery. NATURE COMMUNICATIONS, 13 (1). 2381-.

[img] Text
Limits_to_reproduction_and_seed_size-number_trade-.pdf - Published version

Download (5MB) | Preview

Abstract

The relationships that control seed production in trees are fundamental to understanding the evolution of forest species and their capacity to recover from increasing losses to drought, fire, and harvest. A synthesis of fecundity data from 714 species worldwide allowed us to examine hypotheses that are central to quantifying reproduction, a foundation for assessing fitness in forest trees. Four major findings emerged. First, seed production is not constrained by a strict trade-off between seed size and numbers. Instead, seed numbers vary over ten orders of magnitude, with species that invest in large seeds producing more seeds than expected from the 1:1 trade-off. Second, gymnosperms have lower seed production than angiosperms, potentially due to their extra investments in protective woody cones. Third, nutrient-demanding species, indicated by high foliar phosphorus concentrations, have low seed production. Finally, sensitivity of individual species to soil fertility varies widely, limiting the response of community seed production to fertility gradients. In combination, these findings can inform models of forest response that need to incorporate reproductive potential.

Item Type: Article
Uncontrolled Keywords: Seeds, Trees, Reproduction, Fertility, Forests
Divisions: Faculty of Science and Engineering > School of Environmental Sciences
Depositing User: Symplectic Admin
Date Deposited: 03 May 2022 11:20
Last Modified: 18 Jan 2023 21:04
DOI: 10.1038/s41467-022-30037-9
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3154205