Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Botanica Brasilica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400527 |
Resumo: | ABSTRACT Palms are most diverse in warm and humid regions near the equator. Though palms remain relatively well conserved, they are under increasing pressure from deforestation. Here, we analyze patterns of palm species richness relative to latitudinal gradient, sampling effort, and deforestation in the Amazon, and compare patterns of richness and floristic similarity among Amazonian sub-regions. We built a database of 17,310 records for 177 species. The areas with the greatest richness were in the western, central and northeastern Amazon, principally at latitudes 0-5ºS. Species richness and the number of records were highly correlated (R2=0.76, P<0.005). The highest rates of deforestation (>2000 km2) were found in the southern and eastern Amazon of Brazil, which coincide with low richness and gaps in records. Similarity analyzes resulted in two groups of sub-regions: the first included the Amazon s.s., the Andes and the Guiana, while the second included the Plateau and Gurupi. We conclude that the highest species richness is at low latitudes, and observed richness is affected by sampling effort and is vulnerable to deforestation. Therefore, areas with low species richness, especially areas with data deficiency, need to be further studied for a better understanding of their patterns of diversity and richness. |
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Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon regionAmazon palmsAmazon sub-regionsecology of palmsrichness patternsspecies occurrence recordsABSTRACT Palms are most diverse in warm and humid regions near the equator. Though palms remain relatively well conserved, they are under increasing pressure from deforestation. Here, we analyze patterns of palm species richness relative to latitudinal gradient, sampling effort, and deforestation in the Amazon, and compare patterns of richness and floristic similarity among Amazonian sub-regions. We built a database of 17,310 records for 177 species. The areas with the greatest richness were in the western, central and northeastern Amazon, principally at latitudes 0-5ºS. Species richness and the number of records were highly correlated (R2=0.76, P<0.005). The highest rates of deforestation (>2000 km2) were found in the southern and eastern Amazon of Brazil, which coincide with low richness and gaps in records. Similarity analyzes resulted in two groups of sub-regions: the first included the Amazon s.s., the Andes and the Guiana, while the second included the Plateau and Gurupi. We conclude that the highest species richness is at low latitudes, and observed richness is affected by sampling effort and is vulnerable to deforestation. Therefore, areas with low species richness, especially areas with data deficiency, need to be further studied for a better understanding of their patterns of diversity and richness.Sociedade Botânica do Brasil2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400527Acta Botanica Brasilica v.32 n.4 2018reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062017abb0400info:eu-repo/semantics/openAccessAlvez-Valles,Carlos MarianoBalslev,HenrikGarcia-Villacorta,RooseveltCarvalho,Fabrício AlvimMenini Neto,Luizeng2018-09-05T00:00:00Zoai:scielo:S0102-33062018000400527Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2018-09-05T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
title |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
spellingShingle |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region Alvez-Valles,Carlos Mariano Amazon palms Amazon sub-regions ecology of palms richness patterns species occurrence records |
title_short |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
title_full |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
title_fullStr |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
title_full_unstemmed |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
title_sort |
Palm species richness, latitudinal gradients, sampling effort, and deforestation in the Amazon region |
author |
Alvez-Valles,Carlos Mariano |
author_facet |
Alvez-Valles,Carlos Mariano Balslev,Henrik Garcia-Villacorta,Roosevelt Carvalho,Fabrício Alvim Menini Neto,Luiz |
author_role |
author |
author2 |
Balslev,Henrik Garcia-Villacorta,Roosevelt Carvalho,Fabrício Alvim Menini Neto,Luiz |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Alvez-Valles,Carlos Mariano Balslev,Henrik Garcia-Villacorta,Roosevelt Carvalho,Fabrício Alvim Menini Neto,Luiz |
dc.subject.por.fl_str_mv |
Amazon palms Amazon sub-regions ecology of palms richness patterns species occurrence records |
topic |
Amazon palms Amazon sub-regions ecology of palms richness patterns species occurrence records |
description |
ABSTRACT Palms are most diverse in warm and humid regions near the equator. Though palms remain relatively well conserved, they are under increasing pressure from deforestation. Here, we analyze patterns of palm species richness relative to latitudinal gradient, sampling effort, and deforestation in the Amazon, and compare patterns of richness and floristic similarity among Amazonian sub-regions. We built a database of 17,310 records for 177 species. The areas with the greatest richness were in the western, central and northeastern Amazon, principally at latitudes 0-5ºS. Species richness and the number of records were highly correlated (R2=0.76, P<0.005). The highest rates of deforestation (>2000 km2) were found in the southern and eastern Amazon of Brazil, which coincide with low richness and gaps in records. Similarity analyzes resulted in two groups of sub-regions: the first included the Amazon s.s., the Andes and the Guiana, while the second included the Plateau and Gurupi. We conclude that the highest species richness is at low latitudes, and observed richness is affected by sampling effort and is vulnerable to deforestation. Therefore, areas with low species richness, especially areas with data deficiency, need to be further studied for a better understanding of their patterns of diversity and richness. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400527 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400527 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062017abb0400 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
dc.source.none.fl_str_mv |
Acta Botanica Brasilica v.32 n.4 2018 reponame:Acta Botanica Brasilica instname:Sociedade Botânica do Brasil (SBB) instacron:SBB |
instname_str |
Sociedade Botânica do Brasil (SBB) |
instacron_str |
SBB |
institution |
SBB |
reponame_str |
Acta Botanica Brasilica |
collection |
Acta Botanica Brasilica |
repository.name.fl_str_mv |
Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB) |
repository.mail.fl_str_mv |
acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com |
_version_ |
1752126662970966016 |