A5039948683- Plant and animal studies
- Fern and Epiphyte Biology
- Plant and Fungal Species Descriptions
- Plant Diversity and Evolution
- Botany, Ecology, and Taxonomy Studies
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Plant Pathogens and Fungal Diseases
- Botany and Plant Ecology Studies
- Botanical Research and Applications
- Plant pathogens and resistance mechanisms
- Remote Sensing in Agriculture
- Animal and Plant Science Education
- Wildlife Ecology and Conservation
- Venomous Animal Envenomation and Studies
- Amphibian and Reptile Biology
- Vector-borne infectious diseases
- Remote Sensing and LiDAR Applications
- Forest ecology and management
University of Sheffield
2022-2024
Imperial College London
2018-2022
Universidad Nacional de Colombia
2013-2016
Orchids constitute one of the most spectacular radiations flowering plants. However, their origin, spread across globe, and hotspots speciation remain uncertain due to lack an up-to-date phylogeographic analysis. We present a new Orchidaceae phylogeny based on combined high-throughput Sanger sequencing data, covering all five subfamilies, 17/22 tribes, 40/49 subtribes, 285/736 genera, c. 7% (1921) 29 524 accepted species, use it infer geographic range evolution, diversity, patterns by adding...
We describe and illustrate Lepanthes angelae sp. nov. (Orchidaceae), found during a large, randomised sampling of 341 plots across 270 km (North-to-South) in the Colombian Eastern Cordillera. The new species is morphologically similar to L. dunstervilleorum which it can be distinguished by its yellow sepals with suffused red markings towards centre (vs. light greenish-white flowers red-brown purple at center petals), upper lobe petals being narrowly falcate slender oblong apex form rounded...
Abstract Edge effects are ubiquitous landscape processes influencing over 70% of forest cover worldwide. However, little is known about how edge influence the vertical stratification communities in fragments. We combined a spatially implicit and explicit approach to quantify magnitude extent on canopy understorey epiphytic plants Brazilian Atlantic Forest. Within human-modified landscape, species richness, abundance community composition remained practically unchanged along interior-edge...
Abstract Tropical montane forests (TMF) are characterised by high endemism, species richness and turnover across elevations. A key question is how niche‐based processes, via adaptation of to local environmental conditions, neutral‐based processes from dispersal limitation shape community composition at different spatial scales human‐modified landscapes. We expect that (1) communities highly distinct even within the same habitat type (2) play main role in compositional turnover. To address...
Abstract Habitat conversion is a major driver of tropical biodiversity loss, but its effects are poorly understood in montane environments. While community‐level responses to habitat loss display strong elevational dependencies, it unclear whether these arise via turnover community composition and interspecific differences sensitivity or variation environmental conditions proximity thermal thresholds. Here we assess the relative importance inter‐ intraspecific across gradient by quantifying...
Summary ⍰ Orchids constitute one of the most spectacular radiations flowering plants. However, their geographical origin, historical spread across globe, and hotspots speciation remain uncertain due to lack a broad phylogenomic framework. We present new Orchidaceae phylogeny based on high-throughput Sanger sequencing datasets, covering all five subfamilies, 17/22 tribes, 40/49 subtribes, 285/736 genera, ∼7% (1,921) currently 29,524 accepted species. then use it infer geographic range...
Abstract Aim Human‐driven landscape processes such as habitat loss and fragmentation act on biodiversity, but their effects are mediated by the spatial scale at which they observed. We aim to analyse scale‐of‐effects (direction extent) of landscape‐scale that best explain species richness abundance across epiphyte communities. Location Neotropics, Northern Andes, Colombia, Eastern cordillera. Taxon Vascular epiphytes, Orchidaceae. Methods used field data unravel scale‐of‐effect three...
Physical gradients are major natural drivers of global biodiversity. A key question is understanding how biogeographic patterns impacted by transformation habitats. We aim to elucidate the complex relationships between two core biodiversity—elevation and precipitation—, local deforestation, their additive interactive effects on Andean orchid diversity in Colombian Andes. sampled understory orchids across 341 plots pairing transformed habitats along a wide elevational (1163–3415 m)...
Abstract Rapid development of remote sensing and Light Detection Ranging (LiDAR) technology has refined estimates tree architecture extrapolation biomass across large spatial scales. Yet, current maps show significant discrepancies mismatch to independent ground data. A potential obstacle accurate estimation is the loss information on wood density, which can vary at local regional scales, in process. Here we investigate if variation specific gravity (WSG) substantially impacts distribution...
Extensive fieldwork carried out on the Andean forests of Colombia resulted in discovery Lepanthes cordillerana, described here as a novel taxon. The new species is most similar to teres from Ecuador, which it can be easily distinguished by ciliated margins leaf, oblong-acute lower lobe petals and capitate, cuneate basally, apically caved, villose appendix. Despite its wide distribution across three Colombian mountain ranges, landscape analysis shows that 50% recorded wild populations endemic...
With over 800 species, Lepanthes Swartz (1799: 85) is one of the largest genera in Pleurothallidinae (Orchidaceae). It ranges from southern Mexico to Bolivia and northern Brazil. A high level endemism observed Andes Colombia Ecuador (Pridgeon 2005). Despite large number species described by Luer (1986, 1994, 1996, 2009), several new have been other authors (Catling & Catling 1988, Tremblay Ackerman 1993, Ortiz 1998, Pupulin Bogarin 2004, et al . 2010).
Abstract Human‐modified forests—HMFs—now cover more area worldwide than primary forests and could help buffering the ongoing species loss. However, their role in protecting canopy epiphytes remains unclear, partially because these communities require large trees, high humidity, shade, conditions which are rare HMFs. Here, we assessed how epiphytes, different ontogenetic stages, structured Specifically, evaluated richness, total abundance, community composition, abundance of seedlings...
Abstract Understanding the distribution and habitat requirements of species is crucial for designing conservation actions, yet this information not available many plant species. We report first confirmed wild populations Porroglossum parsonsii , which, because its horticultural value, commercialized in national international markets, from where it was described to science. Our large-scale survey 341 10 × 30 m plots spanning Andean forests, paramo habitats pasturelands Colombia suggests that...
We propose Lepanthes chalalensis as a newly identified species confined to the north-east Andes of Colombia. randomly placed 341 sampling plots across Eastern Cordillera, including transformed and natural habitats. Here, we provide detailed description, illustrating images, ecological discussions, taxonomic key for new entity, conservation status analysis. The is highly geographically restricted (in 2 out plots) has low population size (26 adult individuals). While L. shows resemblance...
Abstract— Thirteen species (18%) in the genus Dracula (Orchidaceae) Colombia lack basic information about their ecology and biogeography. anthracina has remained as a charismatic market-valued with no on its natural habitat. We found precise location of D. explorations across Colombian eastern Cordillera. Our observations wild populations cultivated plants suggest that nigritella should be reduced to synonym based morphological characters. Furthermore, seems rare, geographically restricted,...
Abstract Mormolyca cleistogama has its occurrence unknown in São Paulo state, although widely distributed South America. In this study, based field collection, we confirmed the of M. Brazil. Morphological descriptions, color images and comparison with closely related taxon, rufescens, are presented.
Hapalorchis dominicii E. Parra, Szlach. & S. Nowak sp. nova (Orchidaceae, Spiranthinae) from Colombia is described and illustrated. Its taxonomic position similarity to other Colombian representatives of the genus are discussed. An idendtification key species provided. The considered as Critically Endangered (CR), based on highly restricted distribution, small population size, habitat degradation.
A new species of Cyrtochilum from the Cordillera Oriental range in department Cundinamarca, Colombia, is described, illustrated, and compared with C. suarezii parviflorum. The easily distinguished by its broadly elliptic to sub–rhomboid lip two short rounded simple calli on lip, ornamented papillae at base.
In an expedition of 341 plots across a large elevation (1,100-3,880 m) and spatial gradient (~270 km) in the eastern cordillera we found new species genus Lepanthes Santuario de Fauna y Flora Iguaque, Boyaca, Colombia. We propose L. bachue as species. It is most similar to papallactae but it can be distinguished by its proliferous plants (vs. non proliferous), petals with upper lobe 2.5 mm long, lower 4.5 larger than one, margins fimbriate lobes subequal, long shortly pubescent) lip blades...