<em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World

Background: Dichrocephala is an Old-World genus of the tribe Astereae within the family Asteraceae. One species, D. integrifolia, has been recently reported as introduced in the New World from a pair of collections from Guatemala. During field work in the state of Chiapas in southern Mexico, the sp...

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Main Authors: Oscar Hinojosa-Espinosa, Daniel Potter, Mario Ishiki, Enrique Ortiz, José Luis Villaseñor
Format: Article
Language:English
Published: Sociedad Botánica de México, A. C. 2021-04-01
Series:Botan‪ical Sciences
Subjects:
Online Access:https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2754
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author Oscar Hinojosa-Espinosa
Daniel Potter
Mario Ishiki
Enrique Ortiz
José Luis Villaseñor
author_facet Oscar Hinojosa-Espinosa
Daniel Potter
Mario Ishiki
Enrique Ortiz
José Luis Villaseñor
author_sort Oscar Hinojosa-Espinosa
collection DOAJ
description Background: Dichrocephala is an Old-World genus of the tribe Astereae within the family Asteraceae. One species, D. integrifolia, has been recently reported as introduced in the New World from a pair of collections from Guatemala. During field work in the state of Chiapas in southern Mexico, the species was found and collected. This is the first record of both the genus and species in Mexico and the second record for these taxa in the Americas. Question: Can D. integrifolia occur in more areas in the New World besides those known from Guatemala and Chiapas? Studied species: Dichrocephala integrifolia Study site and dates: Mexico, Central America, and the Caribbean. Methods: An ecological niche model was made and it was projected into the New World. Results: The ecological niche model predicts the records of D. integrifolia in the New World in addition to other ecologically suitable areas, mostly in pine-oak forests in Mexico and Central America and zones with humid mountain and pine forest in the Caribbean. Moreover, a morphological description and illustrations of the species are provided to help with its identification. Conclusions: It is desirable to avoid the further spreading of D. integrifolia in the New World. Although this species is not considered as invasive, it seems to have a high dispersal potential and the ecological niche modelling indicates larger regions in the Americas that might be affected.
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spelling doaj.art-f261628f093641b08ccccdc5815103cc2022-12-22T04:39:15ZengSociedad Botánica de México, A. C.Botan‪ical Sciences2007-42982007-44762021-04-0199310.17129/botsci.2754<em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New WorldOscar Hinojosa-Espinosa0Daniel Potter1Mario Ishiki2Enrique Ortiz3José Luis Villaseñor4Department of Plant Sciences, University of California, Davis, CaliforniaDepartment of Plant Sciences, University of California, Davis, CaliforniaEl Colegio de la Frontera Sur, Unidad San Cristóbal, San Cristóbal de Las Casas, ChiapasDepartamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de MéxicoDepartamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México Background: Dichrocephala is an Old-World genus of the tribe Astereae within the family Asteraceae. One species, D. integrifolia, has been recently reported as introduced in the New World from a pair of collections from Guatemala. During field work in the state of Chiapas in southern Mexico, the species was found and collected. This is the first record of both the genus and species in Mexico and the second record for these taxa in the Americas. Question: Can D. integrifolia occur in more areas in the New World besides those known from Guatemala and Chiapas? Studied species: Dichrocephala integrifolia Study site and dates: Mexico, Central America, and the Caribbean. Methods: An ecological niche model was made and it was projected into the New World. Results: The ecological niche model predicts the records of D. integrifolia in the New World in addition to other ecologically suitable areas, mostly in pine-oak forests in Mexico and Central America and zones with humid mountain and pine forest in the Caribbean. Moreover, a morphological description and illustrations of the species are provided to help with its identification. Conclusions: It is desirable to avoid the further spreading of D. integrifolia in the New World. Although this species is not considered as invasive, it seems to have a high dispersal potential and the ecological niche modelling indicates larger regions in the Americas that might be affected. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2754Ecological niche modelingexotic plantsflora of ChiapasGrangeinaeweeds
spellingShingle Oscar Hinojosa-Espinosa
Daniel Potter
Mario Ishiki
Enrique Ortiz
José Luis Villaseñor
<em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
Botan‪ical Sciences
Ecological niche modeling
exotic plants
flora of Chiapas
Grangeinae
weeds
title <em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
title_full <em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
title_fullStr <em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
title_full_unstemmed <em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
title_short <em>Dichrocephala integrifolia</em> (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World
title_sort em dichrocephala integrifolia em astereae asteraceae a new exotic genus and species for mexico and second record for the new world
topic Ecological niche modeling
exotic plants
flora of Chiapas
Grangeinae
weeds
url https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2754
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