About
69
Publications
48,321
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
753
Citations
Publications
Publications (69)
El Catálogo de las Plantas de Cuba compila los taxones (especies y subespecies) de licófitos, helechos, gimnospermas y angiospermas presentes en Cuba, ordenados en inventarios por familias y territorios. De cada taxón reconocido como miembro de la flora de Cuba se indica su nombre aceptado como correcto (así como la sinonimia relevante y los falsos...
Studies on the germination of Caribbean cacti are essential for conservation and ecological restoration programs. We evaluated the seed traits and germination response of Pilosocereus robinii under five temperatures and two light conditions and compared the vigor of the seedlings obtained. Seminal traits showed characteristics of orthodox seeds. Pi...
RESUMEN: El conocimiento ecofisiológico sobre la germinación de plantas silvestres es fundamental para entender los procesos de regeneración de las comunidades vegetales y tener éxito en proyectos de restauración ecológica y otras acciones de conservación de la biodiversidad. Sin embargo, muy poco se conoce sobre la biología de la semilla de la flo...
Antecedentes:
El archipiélago cubano posee la mayor diversidad de cactus en el Caribe. Pese a que en los últimos años se han realizado numerosos estudios que facilitan la delimitación de sus especies, los inventarios existentes aún no han considerado toda la evidencia disponible.
Preguntas:
¿Cuántos cactus nativos y naturalizados hay en Cuba? ¿Qué...
Climate change, Climate exposure, Spatial conservation planning, protected areas, spatial conservation prioritization, Zonation, Maxent, Distribution models, Caribbean, Antilles, mammals, frogs, reptiles, butterflies, birds, bats, mollusks, plants, fungus, amphibians, polymitas, Cuba
The widespread Neotropical genus Melocactus of approximately 42 currently recognized species, is most diverse in eastern Brazil and the Greater Antilles, especially Cuba. Species delimitation is notoriously problematic in the group, although this is due in part to a lack of detailed systematic studies, as well as a severely cluttered nomenclatural...
During our work on the systematics of Leptocereus, we encountered numerous problems pertaining to the typification of many Cuban, Hispaniolan, and Puerto Rican species names. We here provide lectotypifications for 12 Leptocereus names. In addition, we designate five epitypes.
Los sistemas sexuales son uno de los rasgos reproductivos más estudiados en comunidades tropicales, debido a la influencia que tienen sobre los componentes ecológicos y evolutivos de las poblaciones de plantas. En ambientes tropicales, la frecuencia de aparición de estos sistemas varía entre ecosistemas húmedos y secos. En el presente estudio, se c...
The Melocactus harlowii group comprises eight taxa (M. acunae subsp. acunae, M. acunae subsp. lagunaensis, M. borhidii, M. evae, M. harlowii, M. nagyi, M. perezassoi y M. radoczii) that have been widely treated as synonyms, however, this circumscription has not been supported in any morphological or molecular study. The main objective of this work...
Flower colour polymorphism is one of the most attractive features in pollination studies. This article investigates the factors influencing the frequency of flower colour polymorphism in the Cuban cactus Leptocereus scopulophilus, where four flower morphs have been reported. We determined whether the colour of the tepals is a discrete variable and...
Coccothrinax borhidiana is among the top 50 most threatened plants of Cuba. This palm is endemic to Punta Guanos-Punta Seboruco, Matanzas. Given the increase of gas-oil exploitation in the area where this palm population grows, the current situation of the species could be much more serious than what is known. We characterized the population struct...
Pilosocereus is one of the Cactaceae family’s most relevant genera in terms of the number of species and its wide geographical range in the Americas. Within Pilosocereus , five informal taxonomic groups have been recognized, one of which is P. leucocephalus group s.s. , whose phylogenetic relationships remain unresolved. Therefore, our objectives a...
Serotiny is a strategy in which the retention of mature seeds in parent structures allows plants to cope with environmental variability like heat, drought or fire. Although this phenomenon might be common in Cactaceae, and particularly in Melocactus, it has generally been scarcely addressed. The main goal of our work is to investigate if there are...
Portulaca is the only genus in Portulacaceae and includes ca. 115 species with worldwide distribution. 12 species (one naturalized) occur in Cuba. The taxonomic value of seeds characters for the circumscription of species, by comparing macro-and micromorphological characters, is analyzed. The seeds of Cuban purslanes do not present association patt...
A taxonomic revision to Portulaca (Portulacaceae) in Cuba is presented. Fourteen species are recognized: 11 native (one endemic), one naturalized, and two cultivated. Portulaca avinoamii García-Beltrán is proposed as a new name for P. tuberculata (Danin & H.G. Baker) Danin (non P. tuberculata León). The lectotypes for 21 names of Portulaca are desi...
Cactus seeds have developed adaptations to survive with high temperatures and low soil moisture in their habitats. We studied the effect of the combination of four water potentials (0, −0.2, −0.4 and −0.6 MPa) and two temperatures (25°C and 35°C) on germination and seedling mass of four endemic Leptocereus species from Cuba. There were two semi‐ari...
Although Melocactus is the second-most diverse cactus genus in Cuba, there is still no consensus re�garding species circumscription. Seed morphology has not been used for classifying species in this group in Cuba,
despite the taxonomically useful data obtained in some other genera of Cactaceae. In this study, seeds were evalu�ated for all Melocact...
Premise:
The Caribbean islands are in the top five biodiversity hotspots on the planet; however, the biogeographic history of the seasonally dry tropical forest (SDTF) there is poorly studied. Consolea consists of nine species of dioecious, hummingbird-pollinated tree cacti endemic to the West Indies, which form a conspicuous element of the SDTF....
The Antillean genus Leptocereus represents an in-situ radiation among the Greater and Lesser Antilles of 19 currently recognized species. Extensive fieldwork carried out in the Dominican Republic over recent years has revealed that the species limits of Leptocereus of Hispaniola are more complex than previously thought. There are four currently rec...
Vivipary is the germination of a seed inside of a fruit before it is separated from the mother plant. In the present study, the populations of several Cuban cactus species are explored in search of vivipary and Leptocereus sco-pulophilus is used as a model species to evaluate the effectiveness of vivipary in the establishment of offspring. Vivipary...
Antecedentes y Objetivos:
Los estudios fenológicos han mostrado su utilidad para entender la dinámica de los ecosistemas y pueden ser útiles para la conservación de especies vegetales. En cactáceas son escasos los estudios que evalúan la fenología reproductiva y vegetativa, en particular sobre especies de bosques semideciduos. El presente estudio a...
Ekmanianthe longiflora (Griseb.) Urb. (roble real), es considerado entre las especies de árboles nativos más amenazados de Cuba, con menos de 10 individuos adultos conocidos en toda la Isla [1]. Desde el 2016 nuestro equipo ha seguido la fenología de los cinco individuos adultos localizados en el Pan de Matanzas, con el objetivo de conocer el perio...
Background:
Cactaceae is the fifth taxonomic group with the highest proportion of threatened species. One way to contribute to the preservation of this family is to understand the processes that promote seed germination.
Questions:
How common is dormancy and seed banks in Cactaceae? Are there general patterns in cacti germination response to tempe...
Antecedentes:
En Cuba, los estudios sobre Portulaca carecen de un consenso de los taxones presentes. Las especies se encuentran pobremente representadas en colecciones de herbario y para ellas se infieren distribuciones geográficas más amplias. Esta situación dificulta la evaluación de su riesgo de extinción y, por tanto, la implementación de accio...
A nesting colony of Tricolored Munia, Lonchura malacca (Linnaeus, 1766), is reported here, located in an agroecosystem of Mayabeque, Cuba. The nesting area was located in a sugarcane farm two kilometers east of the town of Quivicán. Nine nests were found, and one of them had eggs and hatchling; four nests had only fresh eggs. Here we characterize t...
Leptocereus is an Antillean genus of thin-stemmed cacti with 17 described species. We carried out a phylogenetic reconstruction with plastid DNA sequence data and a combined analysis with a set of 39 morphological characters using Maximum Likelihood and Bayesian inference criteria to explore the monophyly of the genus. We further analyzed the evolu...
RESUMEN: El conocimiento de los mecanismos de germinación de las plantas silvestres es básico para entender procesos de regeneración de las comunidades vegetales y tener éxito en proyectos de restauración forestal y acciones de conservación. Sin embargo, muy poco se conoce sobre la biología de la semilla de las plantas tropicales, particularmente p...
Four species of Consolea have been reported from the Cuban archipelago, each of which has been considered under threat of extinction. During the last three years various expeditions were carried out to try to update existing information about the conservation status of populations of the different species and their primary threats. Likewise, we rev...
Taxonomic treatments of Pilosocereus in the Andean and Caribbean regions have varied widely. Recent authors often recognized three species only (P. lanuginosus, P. polygonus, and P. royenii), while Britton & Rose in 1920 (sub Cephalocereus) recognized 18 species in the same region. A revision of Pilosocereus is necessary, and it was carried out by...
Invasión de Cactoblactis cactorum (Lepidoptera: Pyralidae) sobre Opuntia (Cactaceae) en Cuba / Invasion of Cactoblactis cactorum (Lepidoptera: Pyralidae) on Opuntia (Cactaceae) in Cuba
Recibido: julio de 2017 Aceptado: agosto de 2017
Publicado online 10 de noviembre de 2017. ISSN 2410-5546 RNPS 2372 (DIGITAL) - ISSN 0253-5696 RNPS 0060 (IMPRESA)
RESUMEN
Dendrocereus nudiflorus es una especie amenazada de cactus cubano cuyas poblaciones muestran una distribución disyunta y están integradas principalmente por individuos adultos. El conocimiento sobre la ecología de esta especie es muy escaso y las causas naturales de su reducido número de individuos se desconocen. El presente estudio exploró...
Seed heteromorphism is the formation of different seed morphs from the same individual. Two seed morphs have been preliminarily observed in Leptocereus scopulophilus . One morph shows an apparent natural scarification of its coat. Herein we describe the seeds, taking into account shape, coat integrity, surface, dimensions, mass and the position of...
RESUMEN.Guazuma ulmifolia es un árbol pionero del Neotrópico con dormancia física (PY), que en Cuba está ampliamente distribuido en vegetación de sitios húmedos y secos. Esto último podría ser consecuencia de un amplio nicho de germinación como sucede en semillas con PY una vez que esta clase de dormancia se elimina. En el presente trabajo se deter...
Conservación en la Práctica surge dentro de Planta! - Iniciativa para la conservación de la flora cubana como un espacio que se proyecta en busca del vínculo de estudiantes de la Carrera de Biología con la conservación de la diversidad vegetal cubana. Es un entrenamiento teórico-práctico para estudiantes de biología en la que integran los conocimie...
Se reporta la reintroducción de un cactus endemico de Cuba en una de sus poblaciones más reducida.
The characters of plants from two Leptocereus populations are compared. L. ekmanii, often considered to be a synonym of L. assurgens, is shown to differ, especially in regard to its flowers. The fruit of L. ekmanii is described and illustrated for the first time.
A high proportion of plant species is predicted to be threatened with extinction in the near future. However, the threat status of only a small number has been evaluated compared with key animal groups, rendering the magnitude and nature of the risks plants face unclear. Here we report the results of a global species assessment for the largest plan...
Cuza Pérez A. & Barrios D.: Wood anatomy of Cuban species of Leptocereus (Cactaceae). — Willdenowia 45: 61–64. 2015. — Version of record first published online on 10 March 2015 ahead of inclusion in April 2015 issue; ISSN 1868–6397; © 2015 BGBM Berlin-Dahlem. DOI: http://dx.doi.org/10.3372/wi.45.45106 Leptocereus, a genus with its centre of diversi...
Bissea es un boletín arbitrado, dedicado a difundir las acciones que se realizan por la conservación de la flora cubana. Bissea honra la memoria del Prof. Dr. Johannes Bisse, fundador del Jardín Botánico Nacional de Cuba, quien puso particular empeño en la formación de botánicos cubanos. El Boletín sobre Conservación de Plantas del Jardín Botánico...
Studies of seed mucilage in a number of species suggest that it has multiple ecological roles dependent on species and their environmental context. We evaluate whether mucilage facilitates seed germination for Leptocereus scopulophilus Areces, as well as whether light conditions influence the effect of the mucilage. Three combined treatments of lig...
Vivipary is a relatively unusual trait in the angiosperms, documented in nearly 195 species of 78 vascular plant families, including 53 cactus species. In this paper we report the occurrence of vivipary in four Cuban cactus species (Leptocereus arboreus, L. scopulophilus, Harrisia eriophora and Selenicereus grandiflorus). For L. scopulophilus, we d...
Los roedores son importantes depredadores de semillas dispersadas por otros grupos de vertebrados (Janzen 1986, Terborgh & al. 1993). No obstante, algunas especies de roedores pueden jugar un papel importante como dispersores secundarios de algunas especies de plantas, al acumular y enterrar semillas en sus madrigueras (Forget & Milleron 1991, Wang...
