Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis

View ORCID ProfileCarlos A. Ordóñez-Parra, Natália F. Medeiros, View ORCID ProfileRoberta L.C. Dayrell, View ORCID ProfileSoizig Le Stradic, View ORCID ProfileDaniel Negreiros, View ORCID ProfileTatiana Cornelissen, View ORCID ProfileFernando A. O. Silveira
doi: https://doi.org/10.1101/2023.03.21.533674
Carlos A. Ordóñez-Parra
1Programa de Pós-Graduação em Biologia Vegetal, Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
2Centro de Síntese Ecológica e Conservação, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Carlos A. Ordóñez-Parra
  • For correspondence: carlos.ordonez.parra@gmail.com
Natália F. Medeiros
2Centro de Síntese Ecológica e Conservação, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
3Programa de Pós-Graduação em Ecologia, Conservação e Manejo da Vida Silvestre, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Roberta L.C. Dayrell
4Faculty of Biology and Preclinical Medicine, University of Regensburg, Regensburg, Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Roberta L.C. Dayrell
Soizig Le Stradic
5UMR BIOGECO, Institut National de la Recherche Agronomique – INRAE and Université de Bordeaux, Bordeaux, France
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Soizig Le Stradic
Daniel Negreiros
6Laboratório de Ecologia Evolutiva e Biodiversidade, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Daniel Negreiros
Tatiana Cornelissen
2Centro de Síntese Ecológica e Conservação, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Tatiana Cornelissen
Fernando A. O. Silveira
2Centro de Síntese Ecológica e Conservação, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Fernando A. O. Silveira
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Preview PDF
Loading

ABSTRACT

Background and Aims Rock outcrop vegetation is distributed worldwide and hosts a diverse, specialised, and unique flora that evolved under extremely harsh environmental conditions. The germination ecology in such ecosystems has received little attention, especially regarding the association between seed traits, germination responses and adult plants ecology. Here, we provide a quantitative and meta-analytical review of the seed functional ecology of Brazilian rocky outcrop vegetation, focusing on four vegetation types: campo rupestre, canga, campo de altitude and inselbergs.

Methods Using a database with functional trait data for 383 taxa and 10,187 germination records for 281 taxa, we calculated the phylogenetic signal of seven seed traits and tested whether they varied among growth forms, geographical distributions, and microhabitats. We also conducted a meta-analysis to understand the effects of light, temperature, and fire-related cues on the germination of campo rupestre species and how the beforementioned ecological groups and seed mass affect such responses.

Key Results All traits showed a strong phylogenetic signal. Campo rupestre species responded positively to light and had optimal germination between 20-30°C. The effect of temperatures below and above this range was modulated by growth form, with shrubs requiring and tolerating higher temperatures to germinate. We only found evidence of a moderating effect of seed mass for responses to heat shocks, with larger, dormant seeds tolerating heat better. Heat shocks above 200°C killed seeds, but smoke accelerated germination. No consistent differences in germination responses were found between restricted and widespread species or microhabitats. Still, species from xeric habitats evolved phenological strategies to synchronise germination with higher soil water availability.

Conclusions Evolutionary history plays a major role in the seed ecology of Brazilian rock outcrop vegetation. However, seed traits and germination responses did not explain species’ geographic distribution and microhabitats, suggesting other traits are more likely to explain such differences.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
Back to top
PreviousNext
Posted March 24, 2023.
Download PDF
Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis
Carlos A. Ordóñez-Parra, Natália F. Medeiros, Roberta L.C. Dayrell, Soizig Le Stradic, Daniel Negreiros, Tatiana Cornelissen, Fernando A. O. Silveira
bioRxiv 2023.03.21.533674; doi: https://doi.org/10.1101/2023.03.21.533674
Reddit logo Twitter logo Facebook logo LinkedIn logo Mendeley logo
Citation Tools
Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis
Carlos A. Ordóñez-Parra, Natália F. Medeiros, Roberta L.C. Dayrell, Soizig Le Stradic, Daniel Negreiros, Tatiana Cornelissen, Fernando A. O. Silveira
bioRxiv 2023.03.21.533674; doi: https://doi.org/10.1101/2023.03.21.533674

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Ecology
Subject Areas
All Articles
  • Animal Behavior and Cognition (4383)
  • Biochemistry (9599)
  • Bioengineering (7092)
  • Bioinformatics (24864)
  • Biophysics (12615)
  • Cancer Biology (9957)
  • Cell Biology (14354)
  • Clinical Trials (138)
  • Developmental Biology (7949)
  • Ecology (12107)
  • Epidemiology (2067)
  • Evolutionary Biology (15989)
  • Genetics (10925)
  • Genomics (14743)
  • Immunology (9869)
  • Microbiology (23676)
  • Molecular Biology (9485)
  • Neuroscience (50872)
  • Paleontology (369)
  • Pathology (1539)
  • Pharmacology and Toxicology (2683)
  • Physiology (4015)
  • Plant Biology (8657)
  • Scientific Communication and Education (1509)
  • Synthetic Biology (2397)
  • Systems Biology (6436)
  • Zoology (1346)