Luis Villegas Paredes

• Unversidad Nacional San Agustin de Arequipa-Perú

Plastic pollution in marine and coastal environments has been widely recognized as a growing environmental concern. Plastic particles generated mainly by the degradation of larger plastic debris have been called microplastics (< 5 mm), which are being widely studied in all regions of the world. In South America there has been a constant increase of...

Tillandsia purpurea is an endemic species of the Peruvian desert coast, where its main source of water and nutrients is supplied by ocean fog. It is a poorly studied species, and its phenological changes in response to different abiotic factors, including temperature and water availability, are unknown. This study aims to describe the different phe...

Species distribution modeling and assessment of the possible current conservation status for loma-forming Tillandsia purpurea Ruiz & Pavón in Peru were performed. This species is considered an epiarenic species that lives under hyperarid conditions, where its main source of water and nutrients comes from the fog of the Pacific coast. For the distri...

Water quality is an issue of global concern because of the evident contamination of the sources of this resource. In recent decades the study of inland waters has been oriented towards the recovery and conservation of these ecosystems, in this sense abundant studies were carried out in lotic systems, and to a lesser extent in lentic systems and in...

Water quality is an issue of global concern because of the evident contamination of the sources of this resource. In recent decades the study of inland waters has been oriented towards the recovery and conservation of these ecosystems, in this sense abundant studies were carried out in lotic systems, and to a lesser extent in lentic systems and in...

Distribución y caracterización de las comunidades de Tillandsia (Bromeliaceae) en el sur de Perú y su relación con la altitud, pendiente y orientación Pauca-Tanco, G.A., Villasante-Benavides, F., Villegas-Paredes, L., Luque-Fernández, C.R., Quispe-Turpo, J.P. 2020. Distribución y caracte-rización de las comunidades de Tillandsia (Bromeliaceae) en e...

p>The high Andean wetlands are considered fragile ecosystems that provide ecosystem services for the maintenance of Andean biodiversity and economy. However, currently the global threat of climate change puts them at serious risk, which is why the objective of this study is to determine the spatial-temporal and climatic variation of the high Andean...

Macroinvertebrates of the Chalhuanca high Andean wetland (bofedal) is presented, which presents two aquatic environments, river and water pools within bofedal vegetation. This wetland is located in the district of Yanque (Caylloma, Arequipa) at 4300 meters, in southern Peru. Aquatic macroin-vertebrates in wetlands such as these have been sparsely s...

The genus Liolaemus presents great diversity among the current tetrapods. It is the second genus with the highest number of valid species described of the Iguana infraorder. In this study, we described a new species of sand lizard from the coastal lomas of Quilca, La Chira and Ocoña that belongs to the subgenus Eulaemus and group of Liolaemus monta...

Advection fog is the sole source of water for many near-the-sea arid areas worldwide such as the lomas, i.e. fog-dependant landscapes of the coastal zone of Peru and Northern Chile, where deforestation occurred since 16th century, leading to a progressive and severe desertification. There, today’s local socio-ecological systems suffer from lack of...

El presente libro está redactado en una forma sencilla y clara, sin descuidar la rigurosidad técnico-científica. La obra comienza con una descripción de lo que son las lomas y de todos los diferentes ambientes que se encuentran en las lomas de Atiquipa, describe tanto textual como gráficamente a cada una de las especies de vertebrados presente en l...

The genus Eulychnia consists of 6 species, mostly distributed in northern Chile. E. ritteri, the only representative for Peru, is endemic, therefore it is adapted to narrow ecological niches; to know its distribution and behavior, contribute to plan its conservation, therefore the objective of the present study is to determine the morphology, distr...

El libro Flora de Lomas de Atiquipa, contiene un breve reseña sobre las antiguas civilizaciones que residieron en el lugar, una descripción paisaje-ecológica y datos sobre 150 especies de plantas que crecen de forma silvestre en el lugar, adicionalmente se presenta un listado preliminar de las especies presentes en las lomas de Atiquipa. The book...

Oxyrophus fitzingeri is distributed in Ecuador and Peru. In this study we present an extension of the geographical distribution for Peru, the first record of the species in the department of Arequipa. This new report was made in the Lomas de Atiquipa Private Conservation Area.

Tropical dry forests are highly endangered ecosystems that have been scarcely studied. Many species within these forests suffer regeneration problems due to unsustainable management regimes. In particular , a regeneration problem has been detected in a forest of tara (Caesalpinia spinosa), a neotropical tree of high ecological and economic value, i...

Epiphytes have the potential to modify the canopy environments in which they grow. Accurately evaluating the impact of epiphytes can be challenging, since plants without epiphytes may also otherwise differ from host plants, and experimental removal is impractical and difficult to replicate in many forests. We studied the impacts of epiphytes (prima...

Se evaluó los cambios en la vegetación de las lomas de Mejía -Arequipa y se registró automáticamente temperatura, radiación solar global y neta, temperatura y contenido de agua en el suelo, y precipitación en la Estación Meteorológica Campbell, ubicada en las lomas de Mejía, Distrito de Mejía, Provincia de Islay, Departamento de Arequipa, Perú, a 7...

Este trabajo presentó la evaluación del comportamiento fenológico de la vegetación arbórea con el fin de determinar su probable utilización como indicadores biológicos de la ocurrencia de eventos "El Niño". Los árboles evaluados fueron Caesalpinea spínosa, Duranta armata, Caríca candícans y Citharexylum flexuosum. Los resultados indican una alta va...

Myrcianthes ferreyrae is an endemic, endangered species, with a small number of individuals located only in hyperarid, fog-oases known as lomas along the Peruvian desert in southern Peru, where fog is the main source of water. Following centuries of severe deforestation, reforestation with this native species was conducted in the Atiquipa lomas, Ar...

Appendix S1. Additional details of Material and Methods. Figure S1. Annual microclimatic patterns in the forest and at the adjacent reforested area. Table S1. Primer sequences used in the analyses of plastid DNA. (DOC)

Background: In the Peruvian Coastal Desert, an archipelago of fog oases, locally called lomas, are centers of biodiversity and of past human activity. Fog interception by a tree canopy, dominated by the legume tree tara (Caesalpinia spinosa), enables the occurrence in the Atiquipa lomas (southern Peru) of an environmental island with a diverse flo...

Presentamos el registro y distribución de 21 especies de reptiles que se agrupan en doce géneros de seis familias. De estas siete son serpientes, trece lagartijas y una tortuga marina. Todas las especies terrestres están adaptadas a condiciones desérticas. Entre las más abundantes tenemos a la familia Tropiduridae, dentro de esta, la subfamilia Tro...

El fenómeno climático ENSO ocasiona cambios notables en la dinámica y estructura de los ecosistemas. Uno de estos cambios son las explosiones demográficas de algunas especies de roedores, conocidas como ratadas en el sur del Perú. En la última ratada de 1998 en Atiquipa, hemos registrado siete especies de roedores y un pequeño marsupial. Oryzomys...

A total of 112 vertebrates species have been recorded in the Lomas of Atiquipa and Mejía, in southern Perú; with 27 mammals, 73 birds, 10 reptilians, an amphibian, and a fish. For all of them, data of their conservation, relative density, habitat preference is provided.