First steps to study the demography of vascular epiphytes in cities

Abstract Urban ecosystems could jeopardize the existence of vascular epiphytes (VE) given that their occurrence is linked to phorophyte availability and particular climatic conditions. Despite reports of VE in cities, nothing is known about their demography. A first step in this direction is to desc...

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Main Authors: D. Mondragón, M. P. Mora-Flores
Format: Article
Language:English
Published: Instituto Internacional de Ecologia 2023-05-01
Series:Brazilian Journal of Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100449&tlng=en
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author D. Mondragón
M. P. Mora-Flores
author_facet D. Mondragón
M. P. Mora-Flores
author_sort D. Mondragón
collection DOAJ
description Abstract Urban ecosystems could jeopardize the existence of vascular epiphytes (VE) given that their occurrence is linked to phorophyte availability and particular climatic conditions. Despite reports of VE in cities, nothing is known about their demography. A first step in this direction is to describe their population structures (PS). We established the PS of VE present in urban parks in Oaxaca City (Mexico), addressing the following questions: 1) what is their demographic status? and 2) are there differences in the structure of populations growing in native versus exotic phorophytes? During 2021, we censused all the trees in six urban parks, recording their origin (native or exotic), the epiphytic species found on them and the development stages present in each VE population. Overall, five VE species were documented: Tillandsia ionantha, T. makoyana, T. sp., T. schiedeana and T. recurvata (Bromeliaceae); the first three with only one individual and the latter two with 95 and 5,694, respectively. A MANOVA test indicated significant differences in PS between T. recurvata (type I structure, suggesting a growing population) and T. schiedeana (type III structure, suggesting a senile population) (Wilkes' λ= 0.821, F-Radio= 11.96 P<0.001). PS showed no differences related to tree origin. Our results indicate that it is necessary to conduct demographic studies to have a more accurate idea of the current condition of vascular epiphytes in cities. For instance, even though we found five VS species, only one of them seems to have viable populations in Oaxaca city.
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spelling doaj.art-a1843852d14f4078b068e2d5b15588ff2023-05-09T07:31:38ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-43752023-05-018410.1590/1519-6984.270998First steps to study the demography of vascular epiphytes in citiesD. Mondragónhttps://orcid.org/0000-0002-0679-7562M. P. Mora-Floreshttps://orcid.org/0000-0002-7227-812XAbstract Urban ecosystems could jeopardize the existence of vascular epiphytes (VE) given that their occurrence is linked to phorophyte availability and particular climatic conditions. Despite reports of VE in cities, nothing is known about their demography. A first step in this direction is to describe their population structures (PS). We established the PS of VE present in urban parks in Oaxaca City (Mexico), addressing the following questions: 1) what is their demographic status? and 2) are there differences in the structure of populations growing in native versus exotic phorophytes? During 2021, we censused all the trees in six urban parks, recording their origin (native or exotic), the epiphytic species found on them and the development stages present in each VE population. Overall, five VE species were documented: Tillandsia ionantha, T. makoyana, T. sp., T. schiedeana and T. recurvata (Bromeliaceae); the first three with only one individual and the latter two with 95 and 5,694, respectively. A MANOVA test indicated significant differences in PS between T. recurvata (type I structure, suggesting a growing population) and T. schiedeana (type III structure, suggesting a senile population) (Wilkes' λ= 0.821, F-Radio= 11.96 P<0.001). PS showed no differences related to tree origin. Our results indicate that it is necessary to conduct demographic studies to have a more accurate idea of the current condition of vascular epiphytes in cities. For instance, even though we found five VS species, only one of them seems to have viable populations in Oaxaca city.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100449&tlng=enhost effectpopulation structurepublic parksTillandsia
spellingShingle D. Mondragón
M. P. Mora-Flores
First steps to study the demography of vascular epiphytes in cities
Brazilian Journal of Biology
host effect
population structure
public parks
Tillandsia
title First steps to study the demography of vascular epiphytes in cities
title_full First steps to study the demography of vascular epiphytes in cities
title_fullStr First steps to study the demography of vascular epiphytes in cities
title_full_unstemmed First steps to study the demography of vascular epiphytes in cities
title_short First steps to study the demography of vascular epiphytes in cities
title_sort first steps to study the demography of vascular epiphytes in cities
topic host effect
population structure
public parks
Tillandsia
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100449&tlng=en
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