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Habitat Suitability and Establishment Limitations of a Problematic Liana

The US native liana, poison ivy (Toxicodendron radicans), responsible for contact dermatitis in humans, is a competitive weed with great potential for expansion in disturbed habitats. To facilitate a better understanding of this threat, we sought to evaluate habitat suitability, population demograph...

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Autores principales: Dickinson, Christopher C., Jelesko, John G., Barney, Jacob N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911500/
https://www.ncbi.nlm.nih.gov/pubmed/33573102
http://dx.doi.org/10.3390/plants10020263
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author Dickinson, Christopher C.
Jelesko, John G.
Barney, Jacob N.
author_facet Dickinson, Christopher C.
Jelesko, John G.
Barney, Jacob N.
author_sort Dickinson, Christopher C.
collection PubMed
description The US native liana, poison ivy (Toxicodendron radicans), responsible for contact dermatitis in humans, is a competitive weed with great potential for expansion in disturbed habitats. To facilitate a better understanding of this threat, we sought to evaluate habitat suitability, population demography, and biotic interactions of poison ivy, using a series of complementary field studies in the two habitats where it most commonly occurs—forest interiors and edges. Of the 2500 seeds planted across both habitats, poison ivy initially colonized forest interiors (32% emergence) at a higher rate than edge habitats (16.5% emergence). However, forest interior seedlings were less likely to survive (interior n = 3; edge n = 15), which might be attributed to herbivore pressure when the seedlings were smaller in the less competitive forest interior. Once established, the poison ivy seedlings appeared to be more tolerant of herbivory, except that of large grazers such as deer. The early life stage of seedling emergence, survival, and establishment are critical in poison ivy success, with biotic pressure, especially from plant competition and deer, limiting recruitment. A suitable habitat of this expanding native liana would increase with increasing forest fragmentation, but might be buffered by the expanding deer population.
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spelling pubmed-79115002021-02-28 Habitat Suitability and Establishment Limitations of a Problematic Liana Dickinson, Christopher C. Jelesko, John G. Barney, Jacob N. Plants (Basel) Article The US native liana, poison ivy (Toxicodendron radicans), responsible for contact dermatitis in humans, is a competitive weed with great potential for expansion in disturbed habitats. To facilitate a better understanding of this threat, we sought to evaluate habitat suitability, population demography, and biotic interactions of poison ivy, using a series of complementary field studies in the two habitats where it most commonly occurs—forest interiors and edges. Of the 2500 seeds planted across both habitats, poison ivy initially colonized forest interiors (32% emergence) at a higher rate than edge habitats (16.5% emergence). However, forest interior seedlings were less likely to survive (interior n = 3; edge n = 15), which might be attributed to herbivore pressure when the seedlings were smaller in the less competitive forest interior. Once established, the poison ivy seedlings appeared to be more tolerant of herbivory, except that of large grazers such as deer. The early life stage of seedling emergence, survival, and establishment are critical in poison ivy success, with biotic pressure, especially from plant competition and deer, limiting recruitment. A suitable habitat of this expanding native liana would increase with increasing forest fragmentation, but might be buffered by the expanding deer population. MDPI 2021-01-29 /pmc/articles/PMC7911500/ /pubmed/33573102 http://dx.doi.org/10.3390/plants10020263 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dickinson, Christopher C.
Jelesko, John G.
Barney, Jacob N.
Habitat Suitability and Establishment Limitations of a Problematic Liana
title Habitat Suitability and Establishment Limitations of a Problematic Liana
title_full Habitat Suitability and Establishment Limitations of a Problematic Liana
title_fullStr Habitat Suitability and Establishment Limitations of a Problematic Liana
title_full_unstemmed Habitat Suitability and Establishment Limitations of a Problematic Liana
title_short Habitat Suitability and Establishment Limitations of a Problematic Liana
title_sort habitat suitability and establishment limitations of a problematic liana
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911500/
https://www.ncbi.nlm.nih.gov/pubmed/33573102
http://dx.doi.org/10.3390/plants10020263
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