Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica

Introduction: The Lignum-vitae (Guaiacum sanctum; Zygophyllaceae) of Mesoamerica and the Greater Antilles, is threatened over much of its range. We evaluated whether a G. sanctum population in the Palo Verde National Park of Costa Rica is viable in the long term. Methods: Using two demographic studi...

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Autores: Balza, Ulises, de Gouvenain, Roland Charles
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2019
País:Costa Rica
Recursos:Universidad de Costa Rica
Repositório:Portal de Revistas UCR
Idioma:inglês
OAI Identifier:oai:portal.ucr.ac.cr:article/38338
Acesso em linha:https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338
Access Level:Acceso aberto
Palavra-chave:demography, disturbance, conservation, Guayacán, park management, PVA, tropical dry forest
demografía, disturbio, conservación, Guayacán, manejo de áreas protegidas, AVP, bosque tropical seco
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network_name_str Costa Rica
repository_id_str
dc.title.none.fl_str_mv Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
title Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
spellingShingle Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
Balza, Ulises
demography, disturbance, conservation, Guayacán, park management, PVA, tropical dry forest
demografía, disturbio, conservación, Guayacán, manejo de áreas protegidas, AVP, bosque tropical seco
title_short Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
title_full Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
title_fullStr Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
title_full_unstemmed Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
title_sort Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa Rica
dc.creator.none.fl_str_mv Balza, Ulises
de Gouvenain, Roland Charles
author Balza, Ulises
author_facet Balza, Ulises
de Gouvenain, Roland Charles
author_role author
author2 de Gouvenain, Roland Charles
author2_role author
dc.subject.none.fl_str_mv demography, disturbance, conservation, Guayacán, park management, PVA, tropical dry forest
demografía, disturbio, conservación, Guayacán, manejo de áreas protegidas, AVP, bosque tropical seco
topic demography, disturbance, conservation, Guayacán, park management, PVA, tropical dry forest
demografía, disturbio, conservación, Guayacán, manejo de áreas protegidas, AVP, bosque tropical seco
description Introduction: The Lignum-vitae (Guaiacum sanctum; Zygophyllaceae) of Mesoamerica and the Greater Antilles, is threatened over much of its range. We evaluated whether a G. sanctum population in the Palo Verde National Park of Costa Rica is viable in the long term. Methods: Using two demographic studies, one in 1997 and the other in 2017, we estimated survival and fecundity rates for each tree age class, population growth rate (lambda), and vital rates elasticities, and we used a density-independent deterministic population model to project the long-term trend of that population. Results: The estimated vital rates during the last 20 years suggested that this population is rapidly decreasing. Although some age classes increased in abundance, seedlings are rare and the plants that recruited in 1997 have not yet reached reproductive maturity. Our results suggest that the current abundance of G. sanctum within the national park may not be a good indicator of its long-term conservation status, and from our population viability analysis, we estimated that the population we studied would decrease to less than 1 % of its current size within the next 200 years. Conclusions: Landscape-scale ecosystem deterioration affecting the greater PVNP region, such as loss of seed dispersers and suppression of disturbances, may offset the passive protection of G. sanctum within park boundaries. Relying on the overall strict protection afforded by the location of the population within the Palo Verde National Park may not be sufficient to conserve this population of G. sanctum. We recommend that more proactive experimental protection and/or restoration measures, possibly including disturbance treatments, be implemented within a research program.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
Article
artículo original
http://purl.org/coar/resource_type/c_2df8fbb1
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338
10.15517/rbt.v67i6.38338
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338
identifier_str_mv 10.15517/rbt.v67i6.38338
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338/40124
https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338/40125
dc.rights.none.fl_str_mv Derechos de autor 2019 Ulises Balza, Roland Charles de Gouvenain
http://creativecommons.org/licenses/by/4.0
acceso abierto
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2019 Ulises Balza, Roland Charles de Gouvenain
http://creativecommons.org/licenses/by/4.0
acceso abierto
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv Revista de Biología Tropical; Vol. 67 No. 6 (2019): Volume 67 – Regular number 6 – December 2019; 1269–1277
Revista de Biología Tropical; Vol. 67 Núm. 6 (2019): Volumen 67 – Número regular 6 – Diciembre 2019; 1269–1277
Revista Biología Tropical; Vol. 67 N.º 6 (2019): Volumen 67 – Número regular 6 – Diciembre 2019; 1269–1277
2215-2075
0034-7744
10.15517/rbt.v67i6
reponame:Portal de Revistas UCR
instname:Universidad de Costa Rica
instacron:UCR
instname_str Universidad de Costa Rica
instacron_str UCR
institution UCR
reponame_str Portal de Revistas UCR
collection Portal de Revistas UCR
repository.name.fl_str_mv Portal de Revistas UCR - Universidad de Costa Rica
repository.mail.fl_str_mv jorge.polanco@ucr.ac.cr
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spelling Twenty-year assessment of Lignum-vitae (Guaiacum sanctum, Zygophyllaceae) in the Palo Verde National Park of Costa RicaBalza, Ulisesde Gouvenain, Roland Charlesdemography, disturbance, conservation, Guayacán, park management, PVA, tropical dry forestdemografía, disturbio, conservación, Guayacán, manejo de áreas protegidas, AVP, bosque tropical secoIntroduction: The Lignum-vitae (Guaiacum sanctum; Zygophyllaceae) of Mesoamerica and the Greater Antilles, is threatened over much of its range. We evaluated whether a G. sanctum population in the Palo Verde National Park of Costa Rica is viable in the long term. Methods: Using two demographic studies, one in 1997 and the other in 2017, we estimated survival and fecundity rates for each tree age class, population growth rate (lambda), and vital rates elasticities, and we used a density-independent deterministic population model to project the long-term trend of that population. Results: The estimated vital rates during the last 20 years suggested that this population is rapidly decreasing. Although some age classes increased in abundance, seedlings are rare and the plants that recruited in 1997 have not yet reached reproductive maturity. Our results suggest that the current abundance of G. sanctum within the national park may not be a good indicator of its long-term conservation status, and from our population viability analysis, we estimated that the population we studied would decrease to less than 1 % of its current size within the next 200 years. Conclusions: Landscape-scale ecosystem deterioration affecting the greater PVNP region, such as loss of seed dispersers and suppression of disturbances, may offset the passive protection of G. sanctum within park boundaries. Relying on the overall strict protection afforded by the location of the population within the Palo Verde National Park may not be sufficient to conserve this population of G. sanctum. We recommend that more proactive experimental protection and/or restoration measures, possibly including disturbance treatments, be implemented within a research program.Introducción: El guayacán real (Guaiacum sanctum; Zygophyllaceae) de Mesoamérica y las Antillas está amenazado en gran parte de su área de distribución. Evaluamos si una población de G. sanctum en el Parque Nacional Palo Verde en Costa Rica es viable a largo plazo. Métodos. Usando dos estudios demográficos, uno en 1997 y otro en 2017, estimamos las tasas de supervivencia y fecundidad para cada clase de edad, la tasa de crecimiento poblacional (lambda), y las elasticidades para cada tasa vital, y usamos un modelo determinístico denso-independiente para proyectar la trayectoria a largo plazo de la población. Resultados: las tasas vitales estimadas durante los últimos 20 años sugieren que esta población está disminuyendo rápidamente, con un lambda estimado de 0.62. Aunque algunas clases de edad aumentaron en abundancias, los renovales son raros y los individuos reclutados en 1997 aún no alcanzaron la madurez reproductiva. Nuestros resultados sugieren que la abundancia actual de G. sanctum dentro del Parque Nacional podría no ser un buen indicador del estado de conservación a largo plazo, y por nuestro análisis de viabilidad poblacional, estimamos que la población estudiada disminuiría a menos del 1 % de su actual abundancia en los próximos 200 años. Conclusiones: el deterioro ecosistémico a escala de paisaje afectando a la región del Parque Nacional Palo Verde, como la pérdida de dispersores de semillas y la supresión de disturbios, podría compensar la protección pasiva de G. sanctum dentro de los límites del Parque Nacional. Confiar en la estricta protección dada por la locación de la población dentro del parque podría no ser suficiente para conservar esta población de G. sanctum. Recomendamos incorporar, dentro de un programa de investigación, una protección experimental más proactiva y/o medidas de restauración, posiblemente incluyendo tratamientos de disturbios.Universidad de Costa Rica2019-12-01info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdftext/htmlhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/3833810.15517/rbt.v67i6.38338Revista de Biología Tropical; Vol. 67 No. 6 (2019): Volume 67 – Regular number 6 – December 2019; 1269–1277Revista de Biología Tropical; Vol. 67 Núm. 6 (2019): Volumen 67 – Número regular 6 – Diciembre 2019; 1269–1277Revista Biología Tropical; Vol. 67 N.º 6 (2019): Volumen 67 – Número regular 6 – Diciembre 2019; 1269–12772215-20750034-774410.15517/rbt.v67i6reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRenghttps://revistas.ucr.ac.cr/index.php/rbt/article/view/38338/40124https://revistas.ucr.ac.cr/index.php/rbt/article/view/38338/40125Derechos de autor 2019 Ulises Balza, Roland Charles de Gouvenainhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-06-13T14:31:05Zoai:portal.ucr.ac.cr:article/38338Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:25:08.944Portal de Revistas UCR - Universidad de Costa Ricafalse
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