Gilberto Ocampo

Gilberto Ocampo
Autonomous University of Aguascalientes | UAA · Departamento de Biología

Ph.D.

About

55
Publications
18,094
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Additional affiliations
August 2014 - December 2014
Universidad de Ciencias y Artes de Chiapas (UNICACH), Tuxtla Gutiérrez, Chiapas
Position
  • Researcher
January 2010 - July 2014
California Academy of Sciences
Position
  • PostDoc Position
January 2010 - July 2014
California Academy of Sciences
Position
  • PostDoc Position

Publications

Publications (55)
Article
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Mammillaria bombycina is a cactus distributed in the central region of Mexico. Cactaceae have the particularity of surviving drought and high temperatures, which is why in vitro propagation studies have been carried out successfully to preserve this species and use it as a study model in cacti. In this contribution, a de novo transcriptome of M. bo...
Book
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De acuerdo con la declaración del 27 de abril de 2020 de la Organización Mundial de la Salud (OMS), el 31 de diciembre de 2019 se confirmó la presencia de un nuevo coronavirus, causante de múltiples casos de neumonía en la ciudad de Wuhan, China. Por su propagación y gravedad, el 11 de marzo de 2020 la OMS declaró que se había alcanzado el nivel de...
Article
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Portulaca minensis is a poorly known species of Portulacaceae, considered exclusive to the campo rupestre vegetation in Minas Gerais, Brazil. It shares morphological features with members of the Cryptopetala clade, composed of P. mucronata, P. cryptopetala, and P. hirsutissima. The purpose of this paper is to expand the knowledge about the taxonomy...
Article
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The lichen biota of several regions of Mexico is scarcely known, including the central part of the country, where the state of Aguascalientes is located. Before this study, lichen records of Aguascalientes were almost nonexistent. The aim of this work was to catalogue the lichen biota from arid environments of Aguascalientes, a widespread habitat i...
Article
https://revistaetnobiologia.mx/index.php/etno/article/view/347 Existe información escasa sobre las plantas utilizadas en las comunidades rurales que se encuentran en el Área Silvestre Estatal Sierra del Laurel, Aguascalientes, México. Este trabajo tiene como objetivo conocer cómo se usan las plantas en la zona de interés mediante un estudio etnobo...
Article
In order to correct oversights and mistakes made by us while transferring species names to Miconia from other genera of the tribe Miconieae, we propose the following new names and combinations: Miconia durandii, Miconia hermogenesii, Miconia macropetala, Miconia reptans, Miconia retropila, Miconia riedeliana, Miconia trichocalyx, and Miconia verruc...
Article
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We describe and illustrate Dalea rubriflora A.E. Estrada, J. Martínez-Ramírez, A. Mares & Ocampo as a new species from central Mexico. According to the morphology of its flower, this new species is included in a new section within subgenus Parosela because the shape of its keel, the innermost petals (which make the flower valvate) coherent along th...
Article
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Antecedentes y Objetivos: La familia Nyctaginaceae se distribuye en regiones cálidas del mundo, principalmente en el suroeste de Norteamérica y está integrada por aproximadamente 31 géneros y 405 especies. Para México se reportan 18 géneros y alrededor de 110 especies. El objetivo del presente estudio fue realizar el tratamiento taxonómico y docume...
Article
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We describe and illustrate Eryngium pugae I. García, J. Martínez-Ramírez & Ocampo as a new species to science. The new taxon grows near streams in places with open oak and oak-pine forests in the Mexican state of Jalisco. Eryngium pugae is morphologically related to E. gentryi, so a comparative table that includes characteristics of these two taxa...
Article
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Antecedentes: la familia Asteraceae es el grupo con más especies de angiospermas a nivel mundial (entre 24,000 - 33,000). A pesar de su diversidad, no se cuenta con suficiente información sobre la riqueza y distribución del grupo para su conservación en el centro de México. Hipótesis: el uso de métodos no paramétricos para medir la diversidad de A...
Chapter
Parasitic plants have evolved independently at least 12 times among the angiosperms, adding up to ca. 1% of the diversity of this group. Mistletoes, shrubby to arboreal parasitic plants infesting the aboveground organs of their hosts, have evolved at least five times within the Santalales. Currently accounted to include 89 genera, representing near...
Article
Talinopsis frutescens (Anacampserotaceae, a family that is close related to Cactaceae) is a succulent species endemic to North America. The aim of this study was to explore, using Ecological Niche Modeling (ENM), changes in potential distribution ranges considering different climate scenarios: past conditions during the Last Inter Glacial (LIG) and...
Article
Portulaca almeviae (Portulacaceae) is described as a new species from a small area in the Pacific coast of the Mexican State of Jalisco. This is a perennial species growing in a rocky habitat and has thick roots and erect to decumbent stems that can produce adventitious roots at the nodes. One of the most notorious features of this species are the...
Article
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The ongoing paradigm shift in taxonomy from individual contributions to a truly collaborative and forward-looking endeavour results in a number of challenges related to distributed data management. Examination of physical specimens remains a key task, but searching for specimen data, literature, and name information is now mostly done online. In th...
Article
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Antecedentes y Objetivos: La familia Caryophyllaceae tiene una amplia distribución geográfica, especialmente en regiones templadas y cálidas del hemisferio norte. Sus especies habitan principalmente en ambientes abiertos o sitios perturbados. El objetivo del presente estudio fue llevar a cabo el inventario, documentar la distribución y realizar el...
Article
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Se reporta la riqueza de odonatos en el Área Natural Protegida Sierra del Laurel, municipio de Calvillo, Aguascalientes, México. Se colectaron 31 especies de 21 géneros y seis familias en 13 localidades, las cuales representan 50% de las especies registradas en Aguascalientes. Rhionaeschna jalapensis (Williamson, 1908) y Dythemis nigrescens Calvert...
Article
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El Área Natural Protegida (ANP) Monumento Natural Cerro del Muerto se encuentra ubicado en los municipios de Aguascalientes y Jesús María, Aguascalientes, México. El plan de manejo oficial de esta ANP reporta que 8% de la flora corresponde a la familia Cactaceae; no obstante, tal documento no proporciona un listado florístico. En el borrador del pl...
Article
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The Miconieae (Melastomaceae) are a strictly Neotropical group comprising over 1900 species. The tribe is characterized by inflorescences that are terminal or axillary, but not cauliflorous (except a few species of Charianthus, Clidemia, and Mecranium), flowers subtended by only one pair of bracteoles (or none at all), with anthers that lack a pedo...
Article
Portulaca is the only genus in Portulacaceae and includes ca. 100 species with worldwide distribution. Inflorescence types in Portulaca have been used as an important character in infrageneric classifications and it has been suggested that capitula and solitary flowers derive from a cyme. The present paper focuses on the study of the diversificatio...
Article
Portulaca juliomartinezii is described here as a new species from the Mexican states of Guanajuato and Querétaro. It is a perennial species with fusiform roots, magenta flowers, and a hemispheric operculum, a set of characters that segregate it from other taxa like P. mexicana and P. pilosa. Although the molecular phylogenetic analysis is not clear...
Article
Portulaca ragonesei (Portulacaceae), an extreme holophyte species from Salina de Ambargasta, central Argentina, is here illustrated and re-described based on morphological evidence. In addition, molecular data shows that this endemic species is one of the earliest-divergent lineages of the Oleracea clade. This is a critically endangered species tha...
Article
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Antecedentes y Objetivos: Las epífitas vasculares son elementos poco comunes en manglares debido a que la salinidad del agua de mar impone condiciones extremas que dificultan su establecimiento. En el sur de México se han realizado estudios sobre las relaciones epífitas-forófito, principalmente en bosques montanos, pero hay pocos trabajos enfocados...
Article
Full-text available
Octubre 2017 Artículo de investigación 125 Relación entre variables del forófito y la riqueza de epífitas vasculares en los Pantanos de Centla, Tabasco, México Relationship between phorophyte variables and vascular epiphyte richness in the Pantanos de Centla, Tabasco, Mexico. 2017. Relación en-tre variables del forófito y la riqueza de epífitas vas...
Article
Portulacaceae is a family that has considerable diversity in photosynthetic phenotypes. It is one of 19 families of terrestrial plants where species having C4 photosynthesis have been found. Most species in Portulaca are in the alternate-leaved (AL) lineage, which includes one clade (Cryptopetala) with taxa lacking C4 photosynthesis and three clade...
Article
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Antecedentes y Objetivos: Annona lutescens fue descrita en 1914 como una especie nueva conocida únicamente de Guatemala. Estudios posteriores permitieron localizarla también en Chiapas, México. No obstante, algunos autores la consideran como un sinónimo de A. reticulata, una especie de origen americano que actualmente se cultiva en muchas partes de...
Article
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The Caryophyllales constitute a major lineage of flowering plants with approximately 12500 species in 39 families. A taxonomic backbone at the genus level is provided that reflects the current state of knowledge and accepts 749 genera for the order. A detailed review of the literature of the past two decades shows that enormous progress has been ma...
Presentation
Full-text available
Las epífitas vasculares son poco comunes en manglares, no sólo en México y el mundo, debido a que la salinidad del agua de mar impone condiciones extremas para su establecimiento. En el sureste mexicano se han estudiado las relaciones epífitas-forofito principalmente en bosques montanos, pero hay pocos trabajos enfocados en los manglares. En este e...
Data
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Fotos de F Almeda & M. Alvear. Producido por: Heike Betz, R.Foster, T.Wachter, J. Philipp, con apoyo de Connie Keller, Ellen Hyndman Fund y Andrew Mellon Foundation. © Marcela Alvear [[ malvear@calacademy.org], Gilberto Ocampo [gaocampo@correo.uaa.mx], Frank Almeda [falmeda@calacademy.org],. © Science & Education, The Field Museum, Chicago, IL 6060...
Article
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The Sierra Nevada de Santa Marta (SNSM), the world's highest coastal mountain range, has long been recognized for its high levels of biological diversity and endemism but no exhaustive inventory of the flora exists today. Here we present an annotated catalogue of the angiosperm family Melastomataceae from this diverse massif. The annotated species...
Article
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Miconieae is the largest tribe in the Melastomataceae with over 1,850 species. The members of Miconieae display a wide range of morphological diversity, and seed morphology is no exception. Previous studies have found that seed morphological diversity is not congruent with traditional classifications, and suggest that it may reflect evolutionary re...
Article
The Portulacaceae are a monogeneric family with around 100 species distributed around the world. Seed morphology in the group is diverse, but its systematic significance is controversial, and its diversification patterns are unknown. In this study, the seed morphology and size of 63 samples representing 49 species, nine varieties, and two cultivars...
Article
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Miconia glandulipetala is described as a new species from the eastern slope of the central Peruvian Andes. This new species is recognized as a member of the "Leandra + Ossaea (scorpioid)" clade based on its secund flowers and ovoid seeds with testa cells in an aligned pattern and par-convex periclinal walls. The taxon is easily recognized by the pr...
Article
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Portulacaceae is a family with a remarkable diversity in photosynthetic pathways. This lineage not only has species with different C4 biochemistry (NADP-ME and NAD-ME types) and C3-C4 intermediacy, but also displays different leaf anatomical configurations. Here we addressed the evolutionary history of leaf anatomy and photosynthetic pathways in Po...
Article
Portulacaceae is a monogeneric family with around 100 species distributed around the world. Seed morphology is diverse in this group, and its variation has been used for taxonomic and identification purposes. However, documentation of seed morphology has focused on a few species complexes or has been limited to specific countries and geographic are...
Article
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Leaf anatomical and carbon isotope ratio (δ13C) data from previous studies suggest that the species of the Melastomataceae perform C3 photosynthesis and that leaf anatomical features of some epiphytic taxa resemble the characteristics found in CAM plants. The δ13C values of 67 species of neotropical Melastomataceae (including epiphytes) were obtain...
Article
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The seed morphology of 234 species distributed among 16 genera of the tribe Miconieae (Melastomataceae) was examined and documented with the use of scanning electron microscopy (SEM). Based on our observations and previously published investigations, we propose a set of 37 morphological characters for describing size, general shape, raphal zone, ap...
Article
Portulaca is the only genus in Portulacaceae and has ca. 100 species distributed worldwide, mainly in the tropics and subtropics. Molecular data place the genus as one of the closest relatives of Cactaceae, but phylogenetic relationships within Portulaca are barely known. This study samples 59 species of Portulaca, 10 infraspecific taxa, and three...
Article
Unlabelled: Premise of the study: Phylogenetic relationships were investigated among the eight families (Anacampserotaceae, Basellaceae, Cactaceae, Didiereaceae, Halophytaceae, Montiaceae, Portulacaceae, Talinaceae) that form suborder Cactineae (= Portulacineae) of the Caryophyllales. In addition, photosynthesis diversification and historical bi...
Article
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Portulacaceae is one of 19 families of terrestrial plants in which species having C4 photosynthesis have been found. Representative species from major clades of the genus Portulaca were studied to characterize the forms of photosynthesis structurally and biochemically. The species P. amilis, P. grandiflora, P. molokiniensis, P. oleracea, P. pilosa,...
Article
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Portulaca californica Legrand es una de las cinco especies del género que se conocen de la península de baja california y a pesar de que se trata de un taxon endémico al estado de baja california sur, se sabe poco él. este trabajo aporta datos acerca de la especie, resultado del trabajo de campo y de la revisión de ejemplares de herbario. se trata...
Article
Portulaca californica is one of five species in the genus distributed on the Baja California peninsula and is endemic to the state of Baja California Sur. Little is known about its distribution and biology. We studied the species in the field and herbarium to improve upon the limited knowledge. It is a perennial plant with stems prostrate to decumb...
Article
Full-text available
El presente trabajo provee un catálogo que comprende los ejemplares tipo de plantas vasculares que alberga el herbario del Instituto de Ecología, A.C., en Pátzcuaro, Mich. (IEB). La colección incluye 340 especímenes designados como tipos primarios (85 holotipos, 247 isotipos, 2 neotipos y 6 isoneotipos), los cuales representan la referencia nomencl...
Article
Portulaca matthewsii is proposed and described as a new species. It belongs to subg. Portulaca sect. Catoclasis subsect. Conocarpae, and has been collected in the northern part of the "Sierra Gorda" Biosphere Reserve, in the Mexican state of Querétaro. The new taxon primarily differs from the known Mexican species of this subsection by the fibrous...
Article
Se propone como combinación nueva a Phemeranthus oligospermus (Brandegee) G. Ocampo, con el propósito de validar el nombre para la publicación del fascículo correspondiente a la familia Portulacaceae para la Flora del Valle de Tehuacán-Cuicatlán, México. Adicionalmente, se hace un comentario acerca de la información de las etiquetas que poseen los...
Article
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Portulaca rubricaulis H.B.K. es una especie que se distribuye principalmente en la zona del Mar Caribe, desde Florida hasta la parte norte de Sudamérica, y de la cual se tenían escasos registros como integrante de la flora de la Península de Yucatán. No obstante, la revisión de los herbarios mexicanos CICY, ENCB, MEXU, UCAM y XAL puso de manifiesto...
Article
Portulaca rzedowskiana is described and proposed as a new species. According to examined material this taxon is found in grasslands and disturbed subtropical scrub in the north part of the Mexican state of Michoacan. It is distinguised mainly by its perennial habit with suberous root, by its flat to subterete lanceolate leaves, sometimes oblong-lan...
Article
Durante el proceso de revisión de la familia Portulacaceae para la Flora del Bajío y de Regiones Adyacentes, se determinó que algunas especies ubicadas en el género Talinum requerían ser transferidas a Phemeranthus, por lo que en este trabajo se proponen las siguientes combinaciones nuevas: P. mexicanus (Hemsley) G. Ocampo, P. multiflorus (Rose & S...
Article
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Se describe Portulaca guanajuatensis como especie nueva para la ciencia. Esta planta se conoce únicamente de la localidad tipo, situada en el municipio de Iturbide, estado de Guanajuato, México. Se ubica en la sección Portulaca del subgénero Portulaca y se caracteriza principalmente por ser de hábito perenne con una raíz napiforme, así como por su...
Article
Portulaca californica is one of five species in the genus distributed on the Baja california peninsula and is endemic to the state of baja california sur. Little is known about its distribution and biology. We studied the species in the field and herbarium to improve produupon the limited knowledge. it is a perennial plant with stems prostrate to d...

Projects

Projects (2)
Archived project
Los artículos sobre Odonata de Sierra del Laurel, Aguascalientes no son parte de este proyecto.
Project
MAIN GOAL: Building an expert network to create a dynamic monographic synthesis of the order Caryophyllales. Caryophyllales constitute about 6% of global flowering plant diversity, with an estimated number of 12,500 species in more than 30 families. The Caryophyllales are ecologically very diverse and also include many economically important species. The Caryophyllales initiative (http://caryophyllales.org/) uses a network approach towards building a modern monographic synthesis of this group of plants. FURTHER INFORMATION: Specific objectives of the initiative are: • to bring together Caryophyllales specialists from all over the world and to facilitate collaborations (Caryophyllales Network and Caryophyllales conferences) • to develop an open access online information system on the species diversity in the Caryophyllales (Caryophyllales portal powered by the EDIT Platform for Cybertaxonomy) Caryopyllales Network. Currently, more than 150 individual scientists from 20 countries are involved. The Network was started in 2011 on the basis of an institutional partnership of the Botanic Garden and Botanical Museum Berlin (including herbarium B), the Universidad Nacional Autónoma de México’s Instituto de Biología (including herbarium MEXU) and the Instituto de Botánica Darwinion in Argentina (including herbarium SI). All three institutions are committed to contribute their existing expertise in Caryophyllales research into a larger initiative based on a dynamic workflow (see Borsch & al. 2015, Persp. Plant Ecol. Evol. Syst 17, 284-300 for more details). The Network contributes the Caryophyllales to the “World Flora Online” (WFO, http://worldfloraonline.org/). Caryophyllales conferences. – In the past decades, scientific meetings focusing on Caryophyllales were hosted by different colleagues: Leningrad (1975), Heidelberg (1992), Moscow (2012), Berlin (2015, Caryophyllales 2015), and in Mexico City (2018, Caryophyllales 2018). Dynamic generic checklist of Caryophyllales. — As a first result of collaborative efforts of the network, a taxonomic backbone at the family and genus levels was published in 2015 in print (Hernández-Ledesma & al. 2015) and online (http://caryophyllales.org/checklist). The checklist includes all currently accepted genus names in Caryophyllales, as well as nomenclatural references, type names and synonymy. The checklist is dynamically updated to incorporate newly published results and corresponding changes in classification. Further developments. — The generic backbone is gradually expanded to cover the species-level (including complete synonymy, nomenclatural references, distribution data, descriptions etc.). The vision is a dynamic monograph for all Caryophyllales taxa integrating the work of numerous specialists around the world. Species-level checklists are work in progress - the checklist for Cactaceae is already accessible (http://caryophyllales.org/cactaceae/), the Nepenthaceae serve as an example of a monographic treatment in progress (http://caryophyllales.org/nepenthaceae/).