A5086609392- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Marine and fisheries research
- Marine animal studies overview
- Marine and coastal plant biology
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Rangeland and Wildlife Management
- Fish Ecology and Management Studies
- Epilepsy research and treatment
- Fire effects on ecosystems
- Neurological and metabolic disorders
- Plant and animal studies
- Mosquito-borne diseases and control
- Neurological disorders and treatments
- Wildlife-Road Interactions and Conservation
- Developmental and Educational Neuropsychology
- Geography and Environmental Studies in Latin America
- Nursing care and research
- Fish biology, ecology, and behavior
- Coastal wetland ecosystem dynamics
- Environmental and Cultural Studies in Latin America and Beyond
- Myasthenia Gravis and Thymoma
- COVID-19 epidemiological studies
- Environmental and Ecological Studies
Center for Scientific Research and Higher Education at Ensenada
2009-2025
California State University, Long Beach
2021
Fundación Universitaria de Ciencias de la Salud
2008-2020
Universidad Autónoma de Madrid
2020
Hospital Universitario de La Princesa
2020
Hospital Universitario Infantil San José
2016-2018
Universidad Nacional de Colombia
2016
Instituto Venezolano de Investigaciones Científicas
2009
Pronatura Noroeste
2007
University of Carabobo
2007
The California Least Tern (Sternula antillarum browni) population is declining in California, U.S.A., but little known about the breeding Gulf of México. Because this decline it important to determine current distribution, trends, and movements nearby California. Emigration from coastal one possible reason for decline. We analyzed colony counts provide an overview its abundance connectivity documented 84 nesting sites, including 61 extant, 10 historic, 13 sites unknown status. estimated be...
ARGOS drifters deployed in the Northern Gulf of California September 1995 showed presence a cyclonic gyre, while second deployment March 1996 revealed an anticyclonic gyre. A circulation pattern consisting seasonally reversing gyre had been proposed before on basis satellite images, geostrophic calculations, and numerical models, but so far no direct observations have made to test its existence. In was cyclonic, baroclinic, very well defined, stable, strong; mean speed rotation time were 0.3...
Codes to compute mean opacities and radiative accelerations for arbitrary chemical mixtures using the Opacity Project recently revised data have been restructured in a client–server architecture transcribed as subroutine library. This implementation increases efficiency stellar modelling where element stratification due diffusion processes is depth dependent, thus requires repeated fast opacity re-estimates. Three user modes are provided fit different computing environments, namely, web...
Snowy Plovers (Charadrius nivosus) may be one of the rarest shorebirds in North America yet a comprehensive assessment their abundance and distribution has not been completed. During 2007 2008, 557 discrete wetlands were surveyed nine additional large wetland complexes sampled México USA. From these surveys, population 23,555 (95% CI = 17,299 – 29,859) breeding was estimated. Combining estimate with information from areas surveyed, total American assessed at 25,869 18,917 32,173)....
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) main clinical features include fever, cough, and dyspnea; however, in a recent series, diarrhea (19.2%), headache (13.1%), impaired consciousness (7.5%) were also frequent symptoms.1 Rare associations like Miller-Fisher syndrome2 or encephalitis3 have been recently reported. However, to date, there are few studies demonstrating the presence of SARS-CoV-2 CSF neurologic symptoms.3
Population genetic structure was characterized in Xantus's Murrelet (Synthliboramphus hypoleucus) by analyzing variation the mitochondrial control region (505 samples) and 12 microsatellite loci (428 birds captured at all 13 current breeding areas southern California northwestern Baja California, Mexico. The two types of molecular markers were consistent revealing strong differentiation between currently recognized subspecies (S. h. hypoleucus S. scrippsi) little or no among within...
Many seabird species of conservation concern have large geographic ranges that span political borders, forcing planners to facilitate their protection in multiple countries. Seabird planning within the seabird-diverse California Current System (CCS) marine ecoregion presents an important opportunity for transboundary collaborations better protect seabirds across USA/México border. While populations USA are relatively well-studied and well-protected, status Mexican region CCS is not well...
Abstract Shorebird populations have declined due to several threats throughout their annual cycle. Anthropogenic disturbance is one of the most ubiquitous shorebird conservation in North America. Here, we studied influence human on community dynamics during migration and winter Ensenada de La Paz, a subtropical coastal wetland Mexico. We used negative binomial generalized linear mixed models investigate associations between spatial, biological, anthropogenic variation local abundance that...
Abstract Background It was suggested that ecological patterns can be used to infer the nature of processes (i.e., competition) structure communities. Analysis resource partitioning under classical niche paradigm (competitive differentiation in exploiting limited resources) has traditionally been understand On contrary, neutral theory states result from such as stochasticity and dispersal abilities. Thus, if any process gives rise a characteristic pattern, comparative study with appropriate...
During the 2003 breeding season 367 historic, potential, and current nesting sites of larids (Fam. Laridae) along coast western Mexico were surveyed. In 2004 2005, three areas: Guerrero Negro, in Baja California Sur; Marismas Nacionales, Nayarit-Sinaloa; Laguna Cuyutlán, Colima surveyed more intensively. 2003-2005, there nine probably between 200 300 pairs Caspian Tern (Sterna caspia); eleven confirmed at least 13,000 Royal (S. maxima); two sites, one which included almost entire population,...
Current assessments indicate that populations of several species North American shorebirds are declining rapidly. However, limited monitoring programs south the U.S.-Mexico border have precluded conservation status temperate breeders on their principal wintering grounds. The Migratory Shorebird Project (MSP), active since 2011 throughout Pacific Americas Flyway, provides an opportunity to detect changes in non-breeding shorebird distribution and abundance. We used annual survey data...
During the 2003 and 2005 breeding seasons we conducted ground surveys of historical, potential, current nesting sites VanRossem’s Gull-billed Tern (Gelochelidon nilotica vanrossemi) along Pacific coast Mexico. We documented 13 active colonies, including ten previously unrecorded sites. One reported colony was inactive. Colony sizes ranged between one 161 pairs. In 2005, estimated population size 526 Eighty-two percent total concentrated in three relatively large Cerro Prieto Isla Montague,...
The spatial distribution of avifauna was documented in Magdalena Bay, the largest coastal wetland on Pacific coast Baja California peninsula. An inventory waterbirds three zones Bay-Almejas, Sur conducted by boat. Composition, abundance, and species were determined 12 censuses from February 2002 to 2003. A total 207,383 individuals 80 20 families recorded. Seven listed breed wetland. Only ten out very common, while others occasional along coastline. Guilds with highest populations pelicans...
Reiter, M. E., E. Palacios, D. Eusse-Gonzalez, R. Johnston, P. Davidson, W. Bradley, Clay, K. Strum, J. Chu, B. A. Barbaree, C. Hickey, Lank, Drever, Ydenberg, and Butler. 2020. A monitoring framework for assessing threats to nonbreeding shorebirds on the Pacific Coast of Americas. Avian Conservation Ecology 15(2):7. https://doi.org/10.5751/ACE-01620-150207
In 2012, 11 small islands were created by the deposition of sediment from dredging operations in connection with creation navigation channels, along main canal Bahía Tóbari, Sonora, Mexico. During breeding seasons 2017–2019 and 2021–2022, we conducted repeated boat surveys each season, documented 12 species birds on these islands, including eight colonial waterbirds, three shorebirds, one owl. The number varied between 7 (2017) (2019), pairs 1,686 17,970 (2018). From 2017 to 2018, there was...
Community structure and association of waterbirds with spatial heterogeneity in the Bahia Magdalena-Almejas wetland complex, Baja California Sur, Mexico. To test hypothesis that determines waterbird diversity a coastal wetland, we compared density, diversity, species composition among various habitats landscapes units Magdalena-Almejas, Based on patterns bird distribution, assessed effect development community structure. gather information habitat features populations conducted censuses 329...
Overall, we estimated a total metapopulation within the geographical range of California brown pelican subspecies (Pelecanus occidentalis californicus) as about 70,680 ? 2,640 breeding pairs (mean SD). Little change in at least three decades is indicated south Southern Bight (SCB) subpopulation, but significant improvements subpopulation size SCB reported elsewhere, support present high numbers observed this northernmost subpopulation. The largest aggregation entire (consisting immediately...
En Colombia, la gallina Criolla es socialmente importante por su aporte nutricional, fácil reproducción, adaptabilidad y rusticidad. Por lo tanto, ha sido necesario conocer cómo diversidad, relaciones estructura genética. El objetivo de este estudio fue ccontribuir al conocimiento biodiversidad del país desarrollo agropecuario sostenible, mediante el diversidad genética aves criollas. Se analizaron 224 muestras ADN colombiana provenientes los departamentos Cauca, Caldas, Chocó, Nariño Valle...
El chorlo nevado (Charadrius nivosus) es un ave playera amenazada en México y EUA. La población reproductora de la costa del Pacíficoes segmento poblacional distinto (SPD) que se distribuye desde Washington, EUA, hasta Baja California Sur, México. San Quintín alberga el50% SPD península California, por lo cual prioritario para especie. Se usaron conteos históricos (1991)y actuales (2007-2014), además información sobre aves marcadas recapturadas, evaluar cambios poblacionales anida enla...
Se revisan las especies de la familia Chamidae en el Perú, cual está constituida por once especies, distribuidas los géneros Arcinella Schumacker, 1817 y Chama Linnaeus, 1758. registra primera vez a frondosa Broderip, 1835, granti (Strong, 1934), hicksi Valentich-Scott & Coan, 2010, janus Reeve, 1847 producta 1835. describen se proporciona datos sobre su distribución, ecología otras observaciones relevantes.