Las epífitas vasculares en un ambiente urbano están influidas por características del arbolado, el clima y las fuentes de propágulos

González, María V.; Ceballos, Sergio Javier

doi:10.25260/ea.21.31.2.0.1354

Cited by 5 publications

(2 citation statements)

References 47 publications

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“…The lack of differences found in the structures of populations growing on native vs. exotic trees for both Tillandsia species, may be related to the fact that, within each host category, there was a mix of tree species with different morphological, physiological and chemical characteristics, which can impact the demographic behavior of epiphytic individuals (Einzmann et al, 2014;Martins et al, 2020;González and Ceballos, 2021;Ramírez-Martínez et al, 2022). This agree with results by Martins et al (2020) showing a lack of preference between exotic and native hosts by vascular epiphytes in a Brazilian urban area.…”

Section: Discussionsupporting

confidence: 84%

First steps to study the demography of vascular epiphytes in cities

Mondragón

Mora-Flores

2024

Braz. J. Biol.

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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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Section: Discussionsupporting

confidence: 84%

First steps to study the demography of vascular epiphytes in cities

Mondragón

Mora-Flores

2024

Braz. J. Biol.

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“…earth were used to obtain the NDVI history from 1982 to 2015 which are the data that the satellite has. With this data, a linear regression was performed in R software (González, 2021), where an equation was obtained to project the NDVI until 2030. For the formulation of the mathematical model, a statistical analysis consisting of linear regression tests was performed to define the best relationship (r2) (Mendoza, 2018).…”

Section: Methodsmentioning

confidence: 99%

Calculation of carbon sequestered through remote sensing in a metropolitan park in the city of Quito, Ecuador

Crespo Nuñez,

Monge Amores,

Sancho Zurita

et al. 2024

SIJIS

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This article investigates how much CO2 is stored in the eucalyptus trees of the Guangüiltagua Metropolitan Park (PMG), as a contribution to inventories aimed at developing initiatives to mitigate the carbon footprint of the city of Quito, Ecuador. In the project's first stage, the Normalized Differential Vegetation Index was calculated from 1982 to 2030 using a Lansat 8 satellite image and QGIS software. A second phase was developed by obtaining a satellite image of SENTINELA-2 and using SNAP software to calculate the NDVI. Using a mathematical model, it was established how much CO2 visually represents each pixel. In the third phase, information was collected in situ using allometric equations in a disaggregation of 50 quadrants, each of 100 m2. The DBH and total height of the existing trees were measured in each quadrant. From this data, we established the amount of CO2 fixed per quadrant, which resulted in an average of 1.5 tons. Using linear regressions, the calculation was projected for the total area of trees in the park, resulting in 42,150 tons of CO2 fixed.

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Vascular epiphytes in Argentinian Yungas: distribution, diversity, and ecology

Ceballos

2022

Bot. Rev.

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Las epífitas vasculares en un ambiente urbano están influidas por características del arbolado, el clima y las fuentes de propágulos

Cited by 5 publications

References 47 publications

First steps to study the demography of vascular epiphytes in cities

First steps to study the demography of vascular epiphytes in cities

Calculation of carbon sequestered through remote sensing in a metropolitan park in the city of Quito, Ecuador

Vascular epiphytes in Argentinian Yungas: distribution, diversity, and ecology

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