نتایج جستجو برای: playas

تعداد نتایج: 275  

Journal: :Portal de la ciencia 2023

El municipio de La Ceiba, en el departamento Atlántida Honduras, posee una gran biodiversidad ecosistémica, siendo costanero que ha tenido mayor realce turístico a través del tiempo. A pesar los esfuerzos invertidos limpieza ornato costero, se desconoce la cantidad desechos sólidos son dejados por transeúntes forma deliberada. Esto resulta infructuosos al momento efectuar limpiezas, debido no c...

Journal: :Journal of Agricultural and Marine Sciences [JAMS] 1998

Journal: :Environmental pollution 2010
Simon K Dinehart Loren M Smith Scott T McMurry Philip N Smith Todd A Anderson David A Haukos

Pesticides have been implicated in widespread amphibian declines. We assessed acute and chronic toxicity of two widely used herbicides to larval New Mexico (Spea multiplicata) and Plains (S. bombifrons) spadefoots from cropland and native grassland playas. Roundup WeatherMAX (WM) toxicity estimates (48- and 216-h LC(50); 48-h LC(1)) for both species were similar to environmental concentrations ...

2017
FELIPE CHAVEZ-RAMIREZ

The overall distribution of wintering sandhill cranes in Mexico has been reported and summarized in several prior documents. However, most reports are associated with counts or surveys primarily conducted for wintering waterfowl. Recent (19992002) reports compiled from local researchers show, that wintering sandhill cranes are distributed much more widely in northern Mexico than is currently re...

2010
Jilili Abuduwaili DongWei LIU GuangYang WU

In many arid and semiarid regions, saline playas represent a significant source of unconsolidated sediments available for aeolian transport, and severe saline dust storms occur frequently due to human disturbance. In this study, saline dust storms are reviewed systematically from the aspects of concept, general characteristics, conditions of occurrence, distribution and ecological impact. Our r...

2017
Allison Groseth Veronica Vine Carla Weisend Carolina Guevara Douglas Watts Brandy Russell Robert B. Tesh Hideki Ebihara

Despite the lack of evidence for symptomatic human infection with Maguari virus (MAGV), its close relation to Cache Valley virus (CVV), which does infect humans, remains a concern. We sequenced the complete genome of a MAGV-like isolate (OBS6657) obtained from a febrile patient in Pucallpa, Ucayali, Peru, in 1998. To facilitate its classification, we generated additional full-length sequences f...

Journal: :Universitas humanistica 2023

El objetivo del artículo se enfoca en evidenciar las gestiones emprendidas por los agentes indígenas buscando crear condiciones necesarias, para establecer un diálogo intercultural efectivo, tendiente a modificar sus económicas, políticas y culturales imperantes, través de solicitudes exigencias reconocimiento legal, públicas, instituciones educativas atención diferenciada, así como espacios es...

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