Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone

Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone

Abstract Understand the role of the drivers in vegetation pattern is essential in ecology since diversity plays a major role in the stability and maintenance of plant communities. The murundus are small and scattered earthmounds with a differentiated flora of its surrounding. In our study site (Campo Maior, Piauí, Northeastern Brazil), we classified them in three categories: presence of carnaúba (PC), presence of tucum (PT), and with the absence of palm trees (AP). Here, our goals were (1) to explore alpha diversity using the richness estimator and abundance distribution rank, expecting that palm trees could influence the richness of plant species on murundus; (2) analyzing the species richness-area relationship in the murundus, following the assumptions that the largest one holds more species; (3) find the changes in the species composition (beta diversity) between the three categories of murundus, assuming which the presence of palm trees influence the species composition; and (4) investigate if the distance between murundus is a decisive factor in the species composition, where the closest murundus are the most similar in species composition. Ours results showed that palms trees do not influence the richness of the murundus, the largest murundus are the richest ones, and the turnover predominantly determines beta diversity in the different murundus categories. Furthermore, the distance between the murundus did not determine its floristic similarity. Overall, we demonstrated which the species of palm trees are not the main drive of the plant assemblage in the murundus, however its size comprises a major factor in the richness, with great species substitution, which explains the high plant diversity.

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Main Authors: Morais,Rodrigo Ferreira de, Macedo,Maria Thamiris de Sousa, Gomes,Maria Thereza Dantas, Fernades,Izaias Médice, Morais,Fernando Ferreira de, Marcusso,Gabriel Mendes, Sousa Júnior,José Ribamar de
Format: Digital revista
Language:English
Published: Instituto de Pesquisas Jardim Botânico do Rio de Janeiro 2022
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100218
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spelling oai:scielo:S2175-786020220001002182022-05-11Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotoneMorais,Rodrigo Ferreira deMacedo,Maria Thamiris de SousaGomes,Maria Thereza DantasFernades,Izaias MédiceMorais,Fernando Ferreira deMarcusso,Gabriel MendesSousa Júnior,José Ribamar de biogeography dispersion earthmounds floristic phytosociology Abstract Understand the role of the drivers in vegetation pattern is essential in ecology since diversity plays a major role in the stability and maintenance of plant communities. The murundus are small and scattered earthmounds with a differentiated flora of its surrounding. In our study site (Campo Maior, Piauí, Northeastern Brazil), we classified them in three categories: presence of carnaúba (PC), presence of tucum (PT), and with the absence of palm trees (AP). Here, our goals were (1) to explore alpha diversity using the richness estimator and abundance distribution rank, expecting that palm trees could influence the richness of plant species on murundus; (2) analyzing the species richness-area relationship in the murundus, following the assumptions that the largest one holds more species; (3) find the changes in the species composition (beta diversity) between the three categories of murundus, assuming which the presence of palm trees influence the species composition; and (4) investigate if the distance between murundus is a decisive factor in the species composition, where the closest murundus are the most similar in species composition. Ours results showed that palms trees do not influence the richness of the murundus, the largest murundus are the richest ones, and the turnover predominantly determines beta diversity in the different murundus categories. Furthermore, the distance between the murundus did not determine its floristic similarity. Overall, we demonstrated which the species of palm trees are not the main drive of the plant assemblage in the murundus, however its size comprises a major factor in the richness, with great species substitution, which explains the high plant diversity.info:eu-repo/semantics/openAccessInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia v.73 20222022-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100218en10.1590/2175-7860202273049
institution SCIELO
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country Brasil
countrycode BR
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libraryname SciELO
language English
format Digital
author Morais,Rodrigo Ferreira de
Macedo,Maria Thamiris de Sousa
Gomes,Maria Thereza Dantas
Fernades,Izaias Médice
Morais,Fernando Ferreira de
Marcusso,Gabriel Mendes
Sousa Júnior,José Ribamar de
spellingShingle Morais,Rodrigo Ferreira de
Macedo,Maria Thamiris de Sousa
Gomes,Maria Thereza Dantas
Fernades,Izaias Médice
Morais,Fernando Ferreira de
Marcusso,Gabriel Mendes
Sousa Júnior,José Ribamar de
Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
author_facet Morais,Rodrigo Ferreira de
Macedo,Maria Thamiris de Sousa
Gomes,Maria Thereza Dantas
Fernades,Izaias Médice
Morais,Fernando Ferreira de
Marcusso,Gabriel Mendes
Sousa Júnior,José Ribamar de
author_sort Morais,Rodrigo Ferreira de
title Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
title_short Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
title_full Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
title_fullStr Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
title_full_unstemmed Influence of palm trees on the richness and distribution of plant species on the murundus at a Caatinga/Cerrado ecotone
title_sort influence of palm trees on the richness and distribution of plant species on the murundus at a caatinga/cerrado ecotone
description Abstract Understand the role of the drivers in vegetation pattern is essential in ecology since diversity plays a major role in the stability and maintenance of plant communities. The murundus are small and scattered earthmounds with a differentiated flora of its surrounding. In our study site (Campo Maior, Piauí, Northeastern Brazil), we classified them in three categories: presence of carnaúba (PC), presence of tucum (PT), and with the absence of palm trees (AP). Here, our goals were (1) to explore alpha diversity using the richness estimator and abundance distribution rank, expecting that palm trees could influence the richness of plant species on murundus; (2) analyzing the species richness-area relationship in the murundus, following the assumptions that the largest one holds more species; (3) find the changes in the species composition (beta diversity) between the three categories of murundus, assuming which the presence of palm trees influence the species composition; and (4) investigate if the distance between murundus is a decisive factor in the species composition, where the closest murundus are the most similar in species composition. Ours results showed that palms trees do not influence the richness of the murundus, the largest murundus are the richest ones, and the turnover predominantly determines beta diversity in the different murundus categories. Furthermore, the distance between the murundus did not determine its floristic similarity. Overall, we demonstrated which the species of palm trees are not the main drive of the plant assemblage in the murundus, however its size comprises a major factor in the richness, with great species substitution, which explains the high plant diversity.
publisher Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
publishDate 2022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100218
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