A5064784280- Plant Taxonomy and Phylogenetics
- Plant Diversity and Evolution
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Botany and Plant Ecology Studies
- Botany, Ecology, and Taxonomy Studies
- Plant and Fungal Species Descriptions
- Invertebrate Taxonomy and Ecology
- Agroforestry and silvopastoral systems
- Botanical Studies and Applications
- Soil Carbon and Nitrogen Dynamics
- Mediterranean and Iberian flora and fauna
- Fern and Epiphyte Biology
- Genomics and Phylogenetic Studies
- Tree Root and Stability Studies
- Botany and Geology in Latin America and Caribbean
- Environmental and Cultural Studies in Latin America and Beyond
- Lichen and fungal ecology
- Plant Water Relations and Carbon Dynamics
- Species Distribution and Climate Change
- Geology and Paleoclimatology Research
- Rangeland and Wildlife Management
- Conservation, Biodiversity, and Resource Management
- Plant Parasitism and Resistance
- Tree-ring climate responses
University of Zurich
2014-2023
Nanjing Forestry University
2019-2022
Royal Botanic Gardens, Kew
2018-2021
State Forestry and Grassland Administration
2021
Pedagogical and Technological University of Colombia
2020
National Museum of Natural History
2020
Smithsonian Institution
2020
National Training Service
2020
Royal Botanic Garden Edinburgh
2017-2018
National University of Saint Anthony the Abbot in Cuzco
2014-2017
Abstract Aim Alpine ecosystems differ in area, macroenvironment and biogeographical history across the Earth, but relationship between these factors plant species richness is still unexplored. Here, we assess global patterns of alpine their association with environmental, geographical historical at regional community scales. Location Global. Time period Data collected 1923 2019. Major taxa studied Vascular plants. Methods We used a dataset representative vegetation, consisting 8,928 plots...
Abstract What would current ecosystems be like without the impact of mankind? This question, which is critical for ecosystem management, has long remained unanswered due to a lack present-day data from truly undisturbed ecosystems. Using mountaineering techniques, we accessed pristine relict in Peruvian Andes provide this baseline and compared it with surrounding accessible disturbed landscape. We show that natural human high are radically different preconceived ideas. Vegetation these ‘lost...
Magnolia zenii is a critically endangered species known from only 18 trees that survive on Baohua Mountain in Jiangsu province, China. Little information available regarding its molecular biology, with no genomic study performed M. until now. We determined the complete plastid genome of and identified microsatellites. Whole sequence alignment phylogenetic analysis using BI ML methods were also conducted. The plastome was 160,048 bp long 39.2% GC content included pair inverted repeats (IRs)...
Abstract Questions Have millennia of human land use fundamentally altered the vegetation a large proportion high Andean puna biome, with natural now restricted to inaccessible areas? Can ledges be used as surrogates infer potential ( PNV ) in heavily impacted areas ecosystem Andes? Is there difference plant community composition and diversity between vegetation, represented by grazing burning, anthropogenically disturbed found on nearby, but accessible, slopes? Location Abra Málaga Private...
We studied tree height in stands of high-Andean Polylepis forests two cordilleras near Cuzco (Peru) with respect to variations human impact and climatic conditions, compared air soil temperatures between qualitatively defined dry humid slopes. 46 forest plots 100 m2 five species at 3560-4680 m. measured diameter breast (dbh) the (1229 trees total), as well a subset plots. The data was analysed combining given from different sites same elevation (±100 m). There no elevational decrease mean...
Human activity affects properties and development of ecosystems across the globe, to such a degree that it is now challenging get baseline values for undisturbed ecosystems. This especially true soil development, which potentially affected by land-use history holds legacy past human interventions. Therefore, still largely unknown most ecozones how would have developed ‘naturally’. Here, we show i.e. processes weathering accumulation organic matter (SOM), comparing pristine with grazed sites...
Prunus subgenus Cerasus (cherry) is an economically important group that distributed in temperate regions of the northern hemisphere. However, shared interspecific morphological traits and variability across taxa are among impediments to taxonomic efforts correctly delimit taxa. This further complicated by a lack genetic information on these taxa, with no focused genomic or phylogenetic studies being done . In this study, we conducted comparative analysis complete plastid genomes (plastomes)...
Molecular evolution, including nucleotide substitutions, plays an important role in understanding the dynamics and mechanisms of species evolution. Here, we sequenced whole plastid genomes (plastomes) Quercus fabri, semecarpifolia, engleriana, phellos compared them with 14 other plastomes to explore their evolutionary relationships using 67 shared protein-coding sequences. While many previously identified were found, our findings do not support previous research which retrieve subg. Cerris...
Calamagrostis (syn. Deyeuxia ), as traditionally circumscribed, is one of the most speciose genera from páramo grasslands northwest South America and southern Central often dominates these high-elevation habitats. However, it remains difficult for researchers to accurately identify species due a lack floristic treatments countries containing páramo, with distribution many still very poorly known. In an effort ameliorate this, we present updated list identification keys in English Spanish (as...
Androdioecy is one of the rarest sexual systems among plants, characterized by males co-occurring with hermaphrodites. Osmanthus delavayi (Oleaceae), an ornamental shrub from southern China, known to have both male and hermaphrodite individuals, but little regarding breeding system this species whether it functionally androdioecious, how potentially evolved. In study, we explore characteristics O. through study phenology, sex ratio, floral organ morphology, pollen number, stigma receptivity,...
We provide an updated checklist and key to the 30 Poa species with open panicles from Peru which includes previously circumscribed Dissanthelium Aphanelytrum species, new taxon records, three undescribed species. compressa, grisebachii, leioclada are recorded for first time. A number of placed in synonymy: carazensis, ferreyrae tovarii synonymized under name fibrifera; adusta (tentatively) pilgeri candamoana; superata is grisebachii; paramoensis huancavelicae. Included within this treatment...
Osmanthus (Oleaceae) is considered one of the most confusing genera with regards to circumscription and phylogenetic placement taxa within subtribe Oleinae Oleaceae, controversies mainly focused on attribution section Leiolea. In present study, we analyzed 71 samples that represent broad taxonomic, biogeographic, morphological patterns in Oleinae. Based concatenation four plastid genes (trnL-F, trnT-L, trnS-G, matK) comparison ITS region, Bayesian Inference, Maximum Likelihood Parsimony...
Gentianella viridiflora (Gentianaceae, Gentianeae, Swertiinae), here described and illustrated, is a new species from the Cordillera Vilcabamba, southern Peru. Its yellowish-green corolla distinguishes it other South American of genus that share similar set morphological features. The known only type locality where occurs in grazed areas next to Polylepis woodland.
Taxonomic delimitation within the Andean Festuca setifolia complex s.l. has been fraught with difficulty due to large range of morphoanatomical and epidermal variation among species coupled varying opinions on what diagnostic characters should be used distinguish species.We shed light this through using multivariate analysis (PCA, PCoA cluster analysis), based 20 variables (morphoanatomical characteristics), elucidate patterns group test validity current delimitations.The 89 OTU's recognized...
Based on morphological study and corroborated by unpublished molecular phylogenetic analyses, five grass species of high-mountain grasslands in Mexico, Central South America, Agrostis bacillata, A. exserta, liebmannii, rosei, trichodes, are transferred to Podagrostis bring the number this genus recognized New World ten. The name Apera liebmannii is lectotypified epitypified. We provide an updated description for Podagrostis, descriptions, images, notes new combinations. diagnostic...
Based on a molecular DNA phylogeny of three plastid ( rpl32-trnK , rps16 intron, and rps16-trnK ) nuclear ITS regions investigating 32 species Agrostidinae, we describe two new genera, Agrostula gen. nov. with single Alpagrostis four species; provide support for five in monophyletic Podagrostis ; include small sample 12 Agrostis s.s. (including the type most Neoschischkinia ), that separates into clades corresponding to A. subg. Vilfa. differs from having leaf blades pillars sclerenchyma...
Abstract Species of Osmanthus are economically important ornamental trees, yet information regarding their plastid genomes (plastomes) have rarely been reported, thus hindering taxonomic and evolutionary studies this small but enigmatic genus. Here, we performed comparative genomics analyses on plastomes 16 the 28 currently accepted species, with 11 newly sequenced. Phylogenetic identified four main lineages within genus that here designated the: “Caucasian ” (corresponding to O . decorus ),...
Abstract Soils contain significantly more carbon than the atmosphere, hence we should understand how best to stabilize it. Unfortunately, role of human interventions on soil organic (SOC) persistence in Anthropocene remains vague, lacking adequate sites that allow unbiased direct comparisons pristine and influenced soils. Here present data from a unique study system High Andes guarantees pristineness reference by physical inaccessibility through vertical cliffs. By comparing isotopic...
We present taxonomic notes on the Festuca caprina complex from southern Africa that includes description and illustration of new species F. drakensbergensis Drakensberg Mountain Centre Floristic Endemism South Lesotho. can be differentiated s.l. by forming lax short tufts with extravaginally-branching tillers lateral-tending cataphyllous shoots or rhizomes present, basal foliage reaching < ½ length culms, generally shorter leaves anthers, 0.8−1.6(−1.8) mm long. The also differs...
Four species of Poa L. are newly reported for sub-Saharan Africa and southern Africa, compressa L., P. iconia Azn., infirma Kunth nemoralis This is the first report from Africa. Vouchers at PRE bulbosa all belong to var. vivipara Koeler, those one trivialis belongs trivialis. Two subspecies recognised in pratensis L.: subsp. irrigata (Lindm.) H.Lindb. pratensis. We also designate a lectotype second-step leptoclada Hochst. ex A.Rich. recording diclinous breeding system binata Nees. Our...
A new species of Bartsia sect. Laxae is described and illustrated from the Cordillera Vilcanota, southern Peru. The distinct all other members in being covered with persistent glandular hairs having a reddish purple corolla. common element undisturbed puna vegetation associated Polylepis forests. revised key to included accommodate this species.