A5087254328- Plant and animal studies
- Botany, Ecology, and Taxonomy Studies
- Plant Diversity and Evolution
- Ecology and Vegetation Dynamics Studies
- Marine and coastal plant biology
- Botanical Research and Applications
- Wildlife Ecology and Conservation
- Agroforestry and silvopastoral systems
- Pacific and Southeast Asian Studies
- Plant Parasitism and Resistance
- Plant and Fungal Species Descriptions
- Chromosomal and Genetic Variations
- Genomics and Phylogenetic Studies
- Botany and Geology in Latin America and Caribbean
- Genetic diversity and population structure
- Coral and Marine Ecosystems Studies
- Marine Bivalve and Aquaculture Studies
- Nematode management and characterization studies
- Environmental and Cultural Studies in Latin America and Beyond
- Geology and Paleoclimatology Research
- Cassava research and cyanide
- Urban Agriculture and Sustainability
- Turtle Biology and Conservation
- Plant Reproductive Biology
- Healthcare and Environmental Waste Management
Charles Darwin Foundation
2014-2024
Universidad de Málaga
2019-2024
University of Groningen
2023
Secretaría de Educación Superior, Ciencia, Tecnología e Innovación
2018
Universidad Regional Amazónica IKIAM
2018
Instituto de Altos Estudios Nacionales
2018
Conservation International
2016
University of South Florida
1995-2015
Abstract Aim Large‐bodied vertebrates often have a dramatic role in ecosystem function through herbivory, trampling, seed dispersal and nutrient cycling. The iconic Galápagos tortoises ( Chelonoidis nigra ) are the largest extant terrestrial ectotherms, yet their ecology is poorly known. Large body size should confer generalist diet, benign digestive processes long‐distance ranging ability, rendering giant adept dispersers. We sought to determine extent of by impact on germination for...
Owing to food scarcity and the high densities that vertebrates often reach on islands, typical insect- seed-eaters widen their feeding niche interact with a greater fraction of species than mainland counterparts. This phenomenon, coined here 'interaction release', has been previously reported for single but never an entire community. During 4 years, we gathered data bird–flower visitation 12 Galápagos islands. We show all sampled land birds exploit floral resources act as potential...
A high‐resolution (2–9 year sampling interval) fossil pollen record from the Galápagos Islands, which spans last 2690 years, reveals considerable ecosystem stability. Vegetation changes associated with independently derived histories of El Niño Southern Oscillation variability provided evidence shifts in relative abundance individual species rather than immigration or extinction. Droughts Medieval Climate Anomaly induced rapid ecological change that was followed by a reversion to previous...
Abstract Aim We searched for evidence of floristic homogenization in widespread oceanic archipelagos. Location Twelve archipelagos the Atlantic and Pacific oceans: Ascension, Azores, Canary, Cape Verde, Desventuradas, Easter, Galápagos, Hawaii, Juan Fernández, Madeira, Puerto Rico Savage. Methods By using Jaccard’s index, we established similarity between pairs at two stages: original (pre‐European; J o ) current flora ( c ). Then, calculated ΔJ = – , where positive differences imply that...
Abstract An association has been observed in several independent data sets between late onset Alzheimer's Disease (AD) and the APOE locus on chromosome 19. We have examined genotype family history positive (FHP) negative (FHN) cases find a distortion of allele frequencies accord with previous studies. However, when we distribution at‐risk siblings FHP group found an excess ϵ4 which also differs significantly from historic controls but not affected siblings. The age unaffected was similar,...
Abstract Aim The aims of this study were (1) to investigate whether the two growth forms Darwiniothamnus Harling (Asteraceae) originated from colonization a single ancestor, (2) identify closest relative(s) , and (3) review molecular phylogenies other plant groups infer origin Galápagos endemics. Location is endemic Islands. Methods All putative relatives plus 38 additional species included. Nucleotide sequences internal transcribed spacers nuclear ribosomal DNA used for Bayesian parsimony...
A new approach for investigating evidence the capacity of plant colonization between islands and success morphological traits associated with seed dispersal is presented. As result establishment, oceanic archipelagos provide an ideal spatio-temporal system in which to analyse related current distributions species across islands. The Galápagos archipelago comprises 12 > 10 km2 that harbour 403 native angiosperms, 313 occupy lowland habitats are present on all We inferred minimum number events...
Seed dispersal and seedling recruitment are crucial phases in the life cycle of all spermatophyte plants. The net contribution seed dispersers to plant establishment is known as effectiveness (SDE) defined product a quantitative (number seeds dispersed) qualitative (probability recruitment) component. In Galápagos, we studied direct SDE dispersed effect on emergence) provided by five island groups frugivores (giant tortoises, lizards, medium-sized passerine birds, small non-finch finches)...
The genus Kalanchoe, mostly indigenous from Madagascar and Tropical Africa, is widely traded for ornamental value. In this study, we provided an updated list of wild cultivated Kalanchoe taxa in Ecuador; analyzed the temporal-spatial pattern their records, categorized invasion status each taxon its environment preferences. records any belonging to were compiled extensive search using various information sources. Our results confirmed presence 16 country. Seven species a hybrid detected wild....
Abstract The repeated, rapid and often pronounced patterns of evolutionary divergence observed in insular plants, or the ‘plant island syndrome’, include changes leaf phenotypes, growth, as well acquisition a perennial lifestyle. Here, we sequence describe genome critically endangered, Galápagos-endemic species Scalesia atractyloides Arnot., obtaining chromosome-resolved, 3.2-Gbp assembly containing 43,093 candidate gene models. Using combination fossil transposable elements, k -mer spectra...
Scalesia pendunculata Hook.f. is the dominant tree in several highlands' areas of Galapagos Archipelago, yet inhabited islands conversion to agricultural fields has reduced its cover. The transition agroforestry systems including species shows promising scenarios restore cover and provide ecosystem services such as carbon sequestration. Here, based on field gathered data, we model potential contribution S. pedunculata stands sequestration Galapagos. Between 2013-2021, 426 seedlings were...
Abstract A checklist of Lichen-forming, Lichenicolous and Allied Fungi Ecuador is presented with a total 2599 species, which 39 are reported for the first time from country. The names three Hypotrachyna montufariensis , H. subpartita Sticta hypoglabra previously not validly published, validated. Pertusaria oahuensis originally introduced by Magnusson as ‘ ad interim ’, validated Lepra . form Leucodermia leucomelos f. albociliata Two new combinations, Fissurina tectigera F. timida made,...
Galápagos is one of the most pristine archipelagos in world and its conservation relies upon research sensible management. In recent decades both interest in, needs of, islands have increased, yet funds capacity for necessary remained limited. It has become, therefore, increasingly important to identify areas priority assist decision-making conservation. This study identified 50 questions considered priorities future The exercise involved collaboration policy makers, practitioners...
The role of the most common land iguana (Conolophus subcristatus) in Galápagos Islands as an effective seed disperser is explored this study. A total 5705 seeds 32 plant species were identified from 160 scats, 4545 which (80%) appeared visually undamaged. Germination trials 849 29 revealed that at least 10 remained viable after passing through iguana's gut, although only a small proportion those (4%) germinated. In any case, we argue C. subcristatus exerts important on 7 Galapagos islands...
Tropical dry forests are among the most threatened of ecosystems globally, especially on islands, where two key challenges face efforts to restore them: (1) dealing with water scarcity and (2) reliably predicting costs benefits alternative approaches given limited resources available for restoration. In this study, we evaluated cost‐effectiveness using water‐saving technologies (WSTs) that increase during tropical forest restoration efforts. Between 2014 2018, 4,983 seedlings 29 woody...
Agriculture in the populated islands of Galapagos Archipelago, a protected area due to its unique biodiversity, has been detrimental conservation but highly required meet food necessities. A potential solution make agricultural farming more sustainable is adopting water-saving technologies (WSTs). Therefore, this study aimed test effectiveness using WSTs such as Groasis Waterboxx® three most valuable crops through participatory research with involvement group farmers from Floreana and Santa...
Restoration of keystone species is a primary strategy used to combat biodiversity loss and recover ecological services. This particularly true for oceanic islands, which despite their small land mass, host large fraction the planet's imperiled species. The endemic Opuntia spp. cacti are one example major focus restoration in Galápagos archipelago, Ecuador. These that support much unique vertebrate animal community arid zones, yet human activities have substantially reduced populations....
Calandrinia galapagosa (Portulacaceae) is a threatened plant endemic to San Cristobal Island, Galapagos. The species by goat herbivory: less than 1300 individuals remain in nine populations, three of which have been fenced for protection. It not known whether these populations are genetically representative the at large or distinct color morphs exhibited represent different taxonomic units. We measured frequency 113 polymorphic amplified fragment length polymorphism markers 189 specimens...