Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad de Valparaíso
2013
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=47926382012 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866814273959755776 |
|---|---|
| author | Natalia G. Rosciano |
| author_facet | Natalia G. Rosciano |
| contents | Effect of anthropic activity on the Imperial Cormorants and Rock Shags colonies in the Beagle Channel, Tierra del Fuego Natalia G. Rosciano Walter S. Svagelj Andrea Raya Rey Ciencias de la Tierra tourism Beagle Channel human disturbance Phalacrocorax atriceps Phalacrocorax magellanicus Seabirds are important components of the marine ecosystem and provide an income for local economies through ecotourism. Human disturbance may affect colonial birds causing a decrease in reproductive success and population size. Breeding colonies of Phalacrocorax atriceps and P. magellanicus, are one of the major tourist attractions of Ushuaia city and the number of tourist vessels visiting colonies increased in recent years. We aim to evaluate if there is an influence of human activities on the distribution and abundance of Cormorants´ and Shags´ colonies and individuals at sea in the Beagle Channel, Tierra del Fuego. Explanatory variables from anthropic source, such as distance to the vessels route, and environmental variables, as adequate substrate type to nest and bathymetry, for each species were defined and related to the data recorded of the size of both species colonies and the feeding distribution. Allocation of colonies and distribution at sea of P. atriceps and P. magellanicus in the Beagle Channel were not affected by tourism activities. Abundance of P. magellanicus at the colonies was associated to islands with a large surface of rocky cliffs available for nesting. Distribution of P. atriceps at sea was related to shallow waters. Although no anthropogenic impact was noticed in our study, given the increase in boat traffic and tourism, more specific and long term studies are encouraged to provide the precise and sitespecific guidelines for a sustainable tourism management allowing seabird conservation. 2013 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47926382012 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.1 Vol.48 |
| format | Artículo científico |
| id | redalyc_47926382012 |
| language | en |
| publishDate | 2013 |
| publisher | Universidad de Valparaíso |
| spellingShingle | Effect of anthropic activity on the Imperial Cormorants and Rock Shags colonies in the Beagle Channel, Tierra del Fuego Natalia G. Rosciano Ciencias de la Tierra tourism Beagle Channel human disturbance Phalacrocorax atriceps Phalacrocorax magellanicus Effect of anthropic activity on the Imperial Cormorants and Rock Shags colonies in the Beagle Channel, Tierra del Fuego Natalia G. Rosciano Walter S. Svagelj Andrea Raya Rey Ciencias de la Tierra tourism Beagle Channel human disturbance Phalacrocorax atriceps Phalacrocorax magellanicus Seabirds are important components of the marine ecosystem and provide an income for local economies through ecotourism. Human disturbance may affect colonial birds causing a decrease in reproductive success and population size. Breeding colonies of Phalacrocorax atriceps and P. magellanicus, are one of the major tourist attractions of Ushuaia city and the number of tourist vessels visiting colonies increased in recent years. We aim to evaluate if there is an influence of human activities on the distribution and abundance of Cormorants´ and Shags´ colonies and individuals at sea in the Beagle Channel, Tierra del Fuego. Explanatory variables from anthropic source, such as distance to the vessels route, and environmental variables, as adequate substrate type to nest and bathymetry, for each species were defined and related to the data recorded of the size of both species colonies and the feeding distribution. Allocation of colonies and distribution at sea of P. atriceps and P. magellanicus in the Beagle Channel were not affected by tourism activities. Abundance of P. magellanicus at the colonies was associated to islands with a large surface of rocky cliffs available for nesting. Distribution of P. atriceps at sea was related to shallow waters. Although no anthropogenic impact was noticed in our study, given the increase in boat traffic and tourism, more specific and long term studies are encouraged to provide the precise and sitespecific guidelines for a sustainable tourism management allowing seabird conservation. 2013 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47926382012 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.1 Vol.48 |
| title | Effect of anthropic activity on the Imperial Cormorants and Rock Shags colonies in the Beagle Channel, Tierra del Fuego |
| topic | Ciencias de la Tierra tourism Beagle Channel human disturbance Phalacrocorax atriceps Phalacrocorax magellanicus |
| url | https://www.redalyc.org/articulo.oa?id=47926382012 |