Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Catherine P. Ortega"'
Autor:
Luis Andrés Maya Pantoja, Johana Catherine Portillo Ortega, Ginna Milena Pérez Ortega, Deysi Liliana Botina Jojoa
Publikováno v:
Revista UNIMAR, Vol 36, Iss 2 (2019)
La presente investigación buscó establecer la tasa efectiva de tributación con base en los estados financieros presentados por las Pymes de Pasto ante la Superintendencia de Sociedades para los años 2014 y 2015. Para ello se realizó una recopila
Externí odkaz:
https://doaj.org/article/8fb631db03284849a1d6694d8091490c
Publikováno v:
PLoS ONE, Vol 6, Iss 11, p e27052 (2011)
BACKGROUND: Human-generated noise pollution now permeates natural habitats worldwide, presenting evolutionarily novel acoustic conditions unprecedented to most landscapes. These acoustics not only harm humans, but threaten wildlife, and especially bi
Externí odkaz:
https://doaj.org/article/df7d4564f4d24c6faefd73dd29a67bc0
Publikováno v:
The Auk. 135:1182-1184
Autor:
Catherine P. Ortega, Joseph C. Ortega
Publikováno v:
Western Birds. :113-123
Autor:
Catherine P. Ortega, Joseph C. Ortega
Publikováno v:
The Southwestern Naturalist. 61:312-320
In the Western Breeding Bird Survey Region, and in Colorado, breeding populations of the western wood-pewee (Contopus sordidulus) have decreased, and with global climate change their breeding range is predicted to decrease during this century. In add
Autor:
Benjamin J. Davidson, Clinton D. Francis, Nathan J. Kleist, Alexander Cruz, Catherine P. Ortega
Publikováno v:
Ornithological Monographs. 74:36-46
Several urban-adapted species sing at a higher frequency in noisy urban areas than in quiet locations. Yet it remains unclear whether the ability to adjust signals in response to noise is related to an ability to persist in noisy areas, because signa
Autor:
Catherine P. Ortega
Publikováno v:
Ornithological Monographs. 74:6-22
Many avian species have long been exposed to loud natural sounds such as streams, waterfalls, and wind. However, anthropogenic noise pollution is a relatively recent phenomenon that birds now have to cope with throughout much of the world. Early inve
Publikováno v:
Ornithological Monographs. 74:78-90
we used three site types to address whether noise from gas well compressors interfered with our ability to detect birds in the Rattlesnake Canyon Habitat management Area, San Juan County, New mexico: (1) gas wells without compressors (control), (2) g
Publikováno v:
Ornithological Monographs. 74:101-110
Increases in anthropogenic noise (hereafter “noise”) exposure may negatively affect reproductive success for breeding birds because noise may mask sounds of approaching predators. However, we recently found that increases in noise amplitude posit