From Traits to Rates: Fire Effects on Plant Evolution

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Ecophysiology and Biology".

Deadline for manuscript submissions: closed (31 May 2020) | Viewed by 3203

Special Issue Editors


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Guest Editor
Departamento de Biología IVAGRO, Universidad de Cádiz, 11510 Puerto Real, Spain
Interests: biodiversity and conservation of fire-prone Mediterranean heathlands; Drosophyllum lusitanicum; ecology and biogeography of Mediterranean heathland plants; Erica; fire and evolution of woody plants in Mediterranean-climate ecosystems

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Guest Editor
Departamento de Biología IVAGRO, Universidad de Cádiz, 11510 Puerto Real, Spain
Interests: plant ecology and evolution in Mediterranean-type ecosystems; Chilean matorral; fire ecology and management; plant invasions; seed ecology

Special Issue Information

Dear Colleagues,

Wildfires are generally perceived by society as catastrophic events that, apart from risking human lives and causing economic losses, destroy natural habitats, threaten biodiversity, and transform green landscapes into barren lands. Although fire damage to people is undeniable, the social perception of wildfires largely contrasts with what science substantiates. Over the past two decades, a growing body of research has been devoted to exploring the role of fire as a key natural process influencing plant evolution, community structure, and biodiversity, mostly in Mediterranean-type ecosystems. It is important that this information permeate through society, since understanding how fire shapes plant traits and biodiversity is crucial for nature conservation and management.

This Special Issue aims to bring together specialists in fire ecology and plant evolution, both young researchers and established scholars worldwide. It seeks to gather novel research and review/synthesis contributions on different aspects of fire evolution, from the phenotypic selection of particular plant traits in wild populations to diversification at the macroevolutionary scale. The main purposes of this Special Issue are (i) to update the knowledge of the effects of fire on plant evolution; and (ii) to draw society’s attention to the actual relationship of wildfire with plant biodiversity and conservation.

Dr. Fernando Ojeda
Dr. Susana Gómez-González
Guest Editors

Manuscript Submission Information

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Keywords

  • biodiversity
  • evolutionary ecology
  • fire ecology
  • fire-prone ecosystems
  • genetic variation
  • natural selection
  • phylogeny
  • plant traits

Published Papers (1 paper)

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Research

12 pages, 1732 KiB  
Article
Mediterranean Heathland as a Key Habitat for Fire Adaptations: Evidence from an Experimental Approach
by Susana Gómez-González, Maria Paniw, Mario Durán, Sergio Picó, Irene Martín-Rodríguez and Fernando Ojeda
Forests 2020, 11(7), 748; https://doi.org/10.3390/f11070748 - 10 Jul 2020
Cited by 1 | Viewed by 2987
Abstract
Some fire ecology studies that have focused on garrigue-like vegetation suggest a weak selective pressure of fire in the Mediterranean Basin compared to other Mediterranean-type regions. However, fire-prone Mediterranean heathland from the western end of the Mediterranean Basin has been frequently ignored [...] Read more.
Some fire ecology studies that have focused on garrigue-like vegetation suggest a weak selective pressure of fire in the Mediterranean Basin compared to other Mediterranean-type regions. However, fire-prone Mediterranean heathland from the western end of the Mediterranean Basin has been frequently ignored in the fire ecology literature despite its high proportion of pyrogenic species. Here, we explore the evolutionary ecology of seed traits in the generalist rockrose Cistus salviifolius L. (Cistaceae) aiming to ascertain the role of the Mediterranean heathland for fire adaptations in the Mediterranean Region. We performed a germination experiment to compare the relationship of seed size to (i) heat-stimulated germination, (ii) dormancy strength, and (iii) heat survival in plants from ‘high-fire’ heathland vs. ‘low-fire’ coastal shrubland. Germination after heat-shock treatment was higher in large seeds of both ‘high-fire’ and ‘low-fire’ habitats. However, dormancy was weaker in small seeds from ‘low-fire’ habitats. Finally, seed survival to heat shock was positively related to seed size. Our results support that seed size is an adaptive trait to fire in C. salviifolius, since larger seeds had stronger dormancy, higher heat-stimulated germination and were more resistant to heat shock. This seed size–fire relationship was tighter in ‘high-fire’ Mediterranean heathland than ‘low-fire’ coastal shrubland, indicating the existence of differential fire pressures and evolutionary trends at the landscape scale. These findings highlight the Mediterranean heathland as a relevant habitat for fire-driven evolution, thus contributing to better understand the role of fire in plant evolution within the Mediterranean region. Full article
(This article belongs to the Special Issue From Traits to Rates: Fire Effects on Plant Evolution)
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