A5074875264- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Animal and Plant Science Education
- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Environmental DNA in Biodiversity Studies
- Lepidoptera: Biology and Taxonomy
- Identification and Quantification in Food
- Wildlife-Road Interactions and Conservation
- Primate Behavior and Ecology
- Insect and Pesticide Research
- Insect and Arachnid Ecology and Behavior
- Animal Behavior and Reproduction
- Plant Taxonomy and Phylogenetics
- Polar Research and Ecology
- Alexander von Humboldt Studies
- Antimicrobial Peptides and Activities
- Fish biology, ecology, and behavior
- Conservation, Biodiversity, and Resource Management
- Plant and soil sciences
- Animal Vocal Communication and Behavior
- Turtle Biology and Conservation
- Fungal Infections and Studies
Universidad Regional Amazónica IKIAM
2016-2024
Instituto Nacional de Biodiversidad
2006-2024
Instituto de Ecología
2010-2015
EcoCiencia
2008-2015
Fundación Para La Investigación Y Gestión En Servicios de Salud
2011-2015
Abstract Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action 1,2 . Ongoing developments in taxonomy, threatening processes and research further underscore the need reassessment 3,4 Here we report findings second Global Amphibian Assessment, evaluating 8,011 International Union Conservation Nature Red List Threatened Species. We find that amphibians most threatened vertebrate class (40.7% globally threatened). The updated...
We describe a new species of dendrobatid frog, Leucostethus bilsa sp. nov., using molecular, morphological, and acoustic evidence. also comment on the taxonomic status four similar Hyloxalus Colostethus. provide an updated phylogeny that corroborates previous hypotheses relationships nine species. Phylogenetic analysis mitochondrial (i.e., 7095 bp combined data from NADH1, NAHD2, cytochrome c oxidase I, b 12S-16S rRNA) seven nuclear genes 4739 bp) indicate close relationship L. to...
Ecuador is one of the most biodiverse countries in world, but faces severe pressures and threats to its natural ecosystems. Numerous species have declined require be objectively evaluated quantified, as a step towards development conservation strategies. Herein, we present an updated National Red List Assessment for amphibian Ecuador, with detailed complete coverages any Ecuadorian taxonomic group date. Based on standardized methodologies that integrate work, spatial analyses, ecological...
Habitat loss and fragmentation are critical threats to biodiversity decline as they decrease the species occurrence dispersal probability between natural habitats. Thus, promoting habitat connectivity supports accessibility vital resources within landscape, contributes long term population persistence. However, decision-making in human dominated landscapes challenges sustainability of conservation-based land management initiatives. The Llanganates – Sangay Ecological Corridor is located on...
Pluralistic approaches to taxonomy facilitate a more complete appraisal of biodiversity, especially the diversification cryptic species. Although species delimitation has traditionally been based primarily on morphological differences, integration new methods allows diverse lines evidence solve problem. Robber frogs (Pristimantis) are exemplary, as many show high variation within populations, but few traits that diagnostic We used combination DNA sequences from three mitochondrial genes,...
In Ecuador, Tapirus pinchaque is considered to be critically endangered. Although the species has been registered in several localities, its geographic distribution remains unclear, and effects of climate change current land uses on this are largely unknown. We modeled ecological niche T. using MaxEnt, order assess potential adaptation present future scenarios. evaluated habitat loss due by use, ecosystem availability importance Ecuadorian System Protected Areas into models. The model...
Imidacloprid is a neonicotinoid insecticide that has received particular attention due to its widespread use and potential adverse effects for aquatic terrestrial ecosystems. Its toxicity organisms been evaluated in central southern Europe as well (sub-)tropical regions of Africa Asia, showing high toxic some insects zooplankton taxa. However, representative tropical Latin America never evaluated. To fill this knowledge gap, we carried out mesocosm experiment assess the short- long-term...
Abstract Aim The most popular sources of information on species distributions are the expert‐derived maps and georeferenced occurrences, mainly those compiled by Global Biodiversity Information Facility (GBIF). These have been constantly used with biogeographical conservation goals. However, their degree accuracy in representing geographical biodiversity patterns remains poorly understood. Here, we compared both to estimate global richness composition threatened vertebrates marine islands....
The Bilsa Biological Station is located on the Mache-Chindul mountains and protects some of last rainforest remnants in province Esmeraldas, northwestern Ecuador. Since 2004, we have been inventorying amphibians reptiles Bilsa. We found 109 species herpetofauna (37 72 reptiles), representing 8 % 18 known from Ecuador, respectively. report distribution extensions for Sachatamia albomaculata, Hyalinobatrachium valerioi, Pristimantis muricatus, P. rosadoi, presence several putatively...
Ecnomiohyla tuberculosa is an Amazonian hylid of uncertain phylogenetic position. Herein DNA sequences mitochondrial and nuclear genes are used to determine its relationships. New external morphology Trachycephalus typhonius also analyzed assess the status Ecuadorian Peruvian populations. The phylogeny shows unequivocally that nested within genus Tepuihyla, tribe Lophiohylini. This position was unexpected because remaining species belong Hylini. To solve paraphyly Ecnomiohyla, transferred...
ABSTRACT Habitat loss and fragmentation caused by deforestation are important anthropogenic drivers of changes in biodiversity the Amazon rainforest, has reached its highest rate recent decades. However, magnitude direction effects on species composition distribution have yet to be fully understood. We evaluated responses four taxonomic groups − birds, amphibians, orchid bees, dung beetles - habitat at both assemblage level northern Ecuadorian Amazon. sampled fifteen 250-m long plots...
We studied a population of the endangered glassfrog, Cochranella mache, at Bilsa Biological Station, northwestern Ecuador, from 2008 and 2009. present information on annual abundance patterns, behavioral ecology, habitat use species distribution model performed with MaxEnt. evaluate importance National System Protected Areas (SNAP) in Colombia under scenarios climate change loss. predicted restricted environmental suitability area 48,509 Km2 to 65,147 along western Ecuador adjacent Colombia;...
We consider Pristimantis achuar as junior synonym of P. luscombei, based on morphological and genetic evidence. Paratype specimens luscombei are part a new species, which lead to taxonomic confusion regarding the identity luscombei. describe name this species miktos sp. nov. from Juyuintza, Pastaza province, eastern lowlands Ecuador. Morphological diagnostic characters used distinguish other brownish Amazonian are: (1) skin dorsum shagreen with scattered tubercles or pustules; (2) tympanum...
The Tropical Montane Cloud Forests (TMCF) of South America are ecosystems facing rapid changes due to global warming. Herein, we used species climatic niche models reconstruct the boundaries TMCF and predict range shifts in climate change scenarios. Thirty-two from three taxonomic groups (plants, birds, amphibians) were modelled using community-level under current future scenarios, as determined by two Global Climate Models (GCMs) for year 2050. reconstructions detect overlap with...
Batrachochytrium dendrobatidis (Bd) is a lethal fungal species that parasitizes vertebrates and associated with the worldwide decline of amphibian populations. The development sensitive, rapid detection methods, particularly DNA-based techniques, critical for effective management strategies. This study evaluates efficacy DNA extraction portable PCR device in mountable field laboratory setup detecting Bd near habitats three critically endangered Atelopus toad Ecuador. We collected skin swabs...
Amphibians are one of the most threatened animal groups. In Family Centrolenidae c. 50% species declining and with extinction. One these is glassfrog Cochranella mache, endemic to seasonal evergreen forests West Ecuadorian region restricted highly fragmented forest < 100 km2 in Cordillera Mache-Chindul, north-western coastal Ecuador, at 100–640 m. We surveyed this elucidate distribution conservation status C. mache. located it three new localities also found a museum specimen from further...
Entre los años 2006 y 2007, en un pequeño humedal de la localidad San Francisco del Cabo al noroccidente Ecuador, monitoreamos mensualmente una población rana arborícola Agalychnis spurrelli. Nuestros objetivos fueron: (1) determinar el tamaño poblacional las fluctuaciones anuales población, (2) evaluar distribución espacial hábitat por categoría edad; (3) analizar asociaciones con otras especies anuros relacionadas partición recursos sustrato, época reproductiva sitio reproducción. Se...
Agalychnis spurrelli Boulenger, 1913 es el nombre válido más reciente para una especie hylida de rana Phyllomedusina que habita los bosques tropicales tierras bajas y premontanos del Pacífico, desde sur Costa Rica hasta centro-occidente Ecuador. Presento datos apoyan la ubicación litodryas Duellman & Trueb, 1967 como un sinónimo junior A. spurrelli. medianamente grande con extensas membranas interdigitales se distingue otras especies género por tener flancos extremidades uniformemente...
We describe a new species of Pristimantis from evergreen lowland forest in the Amazon Basin Ecuador. observed all specimens to be active at night, located over leaves shrubs both primary and edge clearings. The is tentatively assigned (Pristimantis) frater group based on its small size (17.0–22.1 mm snout–vent length four males 24.1 single female), relatively narrow head, short subacuminate snout, lack canthal stripes labial bars, moderately long limbs, Finger I shorter than II, Toe V longer...
Alexander von Humboldt conducted his best-known work on the slopes of Ecuadorian Andes. He did this by applying own characteristic brand multidisciplinary scientific approach. This consisted thorough data collection while synthesizing and visualizing in innovative formats. Also important for success South America was collaborative network that helped him to identify specimens formulate transformative thoughts. It is no surprise captivated Ecuador, as it one most biodiverse places world,...
We describe a new species of the hylid frog genus Dendropsophus from Amazonian Ecuador. The species, Dendrop-sophus shiwiarum sp. nov., appears to be part D. microcephalus group. differs its congeners by combination of: (1) tympanic membrane non-differentiated and annulus evident only ventrally, (2) disc Finger III Toe IV with pointed tip, (3) dorsal surfaces digital discs conical tubercle as result projection distal phalanx, (4) small size (SVL < 19 mm). is morphologically most similar...