Many of our studies are based on determining how groups of plants have been impacted by historical geological or climatic events. However, in our recent article, published in the Geological Journal, we outline how dated molecular phylogenies may provide information for geologists that may shed light on tectonic and orogenic processes and may also help reconstruct climatic histories. Click here for a link to the article.
The field course concluded last Sunday in Chicaque, a private reserve close to Bogota.
The reserve is located between 2100 and 2600 metres above sea level with a diverse array of plant families giving our students even more to think about. There were also spectacular views across the Magdalena Valley.
We thank Julieth Serrano and Zoe Goodwin (principal professors on the course and recent graduates from University of Edinburgh/RBGE and the University of Oxford respectively), Francisco Fajardo and Natalia Contreras (Jardin Botanico de Bogota) and Carlos Vargas (Universidad del Rosario) for assisting with the course. We also acknowledge the help of staff at each of the reserves we visited whose help faciliated a highly successful first field course in Colombia.
We travelled from Rio Claro through part of the coffee district stopping to see high altitude Páramo vegetation on the way.
We spent the last four days at the Otun Quimbaya Flora and Fauna Sanctuary that is located in an area of cloud forest at about 1900 above sea level.
The area is rich in RBGE focus research groups such as Begonia, Renealmia, Solanaceae and Gesneriaceae….
….as well as some spectacular localities….
The main objective is to teach how to identify plant families….
….and how to collect…
We are now heading to our final field site at the Chicaque Reserve in Cundinamarca.
RBGE Masters students are now in Colombia where they will visit three sites at different altitudes with varied vegetation. We started in lowland wet forest on karst at the Rio Claro Reserve in Antioquia after a six hour journey from Bogota.
El Refugio, Reserva Natural Rio Claro.
The students hard at work learning the basics of identifying tropical plant families.
…and in the field collecting…
Begonia growing close to running water.
We are now on our way to our second field site in Otun Quimbaya, Quindio…heart of the coffee growing dstrict.
Mafe successfully defended her thesis on Thursday! Her work focused on the interactions between ants and there Tococa (Melastomataceae) host plants. Mafe generated, analyzed and interpreted huge amounts of DNA sequence data to determine how these plant insect interactions were effected by the uplift of the Andes.
Mafe pushed the boundaries back with her research. We are sure she will continue to do the same in the future.
Julieth Serrano successfully defended her thesis on Tuesday. The work focused on using herbarium and DNA sequence data to assess patterns in the distribution of Sapotaceae. Julieth is interested in applying this data to practical conservation particularly within Colombia.
Julieth conducted extensive fieldwork in various parts of Colombia.
She also immersed herself in Botanics and local culture.
Congratulations again to Julieth for being such a valued member of our research team.
Eugenio Valderrama recently had a paper accepted for publication in the journal Molecular Phylogenetics and Evolution. In it he details how he discovered new phylogenetic markers that are needed to resolve relationships amongst species of the genus Renealmia (Zingiberaceae) that is the only genus in the family native to the neotropics. The markers were designed to be short in length and thus suitable for use on the often degraded DNA that is recovered from herbarium specimens. The genus is also found in Africa and the data will be used to determine whether there are differences in diversification rates between African and neotropical lineages. Click here for a link to the article.
Renealmia lucida Photo Eugenio Valderrama.
Colombia Calling is a weekly podcast by Anglo-Canadian expat journalist Richard McColl. The 10th of October presentation (number 204) “Explaining Colombia´s Paramos” featured an interview with researchers at the Rosario University in Bogota who focus some of their work on the paramo ecosystem. The podcast can be heard at Richard’s website http://www.richardmccoll.com/colombia-calling/.
Begonia solaniflora Jara is a new species from Colombia’s Eastern Cordillera recently described in the journal Phytotaxa. It is a representative of a section of Begonia that was studied by Adolfo Jara, a student of the University of the Andes who spent six months on an RBGE study visit to work with our Begonia team. Its name refers to the general aspect of the staminate flowers that are reminiscent of Solanum.
It is known from only two locations and was categorized as critically endangered in the publication. Adolfo continues with his taxonomic work and plans to publish more new species in the near future.
Photos Adolfo Jara.
Maca has recently published an article based on some of her work from her PhD. In the paper, which appears in the latest issue of the journal Alpine Botany, she describes genetic diversity of species in the genus Oreobolus (Cyperaceae) that are distributed from southern South America to the northern Andes. The paper highlights the complex nature of genetic diversity within and amongst species in a group of recently radiated plants that have likely been affected by Pleistocene climatic fluctuations.
A full-text view-only version of the paper can be found at http://rdcu.be/vBkg