Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico
In late autumn 2004 we studied the effect of water surface condition, wind speed, and tidal status on the hunting patterns (flapping, gliding, hovering) and hunting success of the osprey population at Magdalena Bay, Baja California Sur, Mexico. Through focal sightings we obtained the number of hunt...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Autónoma de Baja California
2007-09-01
|
| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1241 |
| _version_ | 1797279454543740928 |
|---|---|
| author | A Castellanos-Vera E Rivera |
| author_facet | A Castellanos-Vera E Rivera |
| author_sort | A Castellanos-Vera |
| collection | DOAJ |
| description |
In late autumn 2004 we studied the effect of water surface condition, wind speed, and tidal status on the hunting patterns (flapping, gliding, hovering) and hunting success of the osprey population at Magdalena Bay, Baja California Sur, Mexico. Through focal sightings we obtained the number of hunting dives, hunting length, and the proportion of hunting length invested in each pattern. Hunting success was 61%. Ospreys required an average of 2.4 dives to catch a prey. Hunting lasted 450 seconds on average, with about 50% of this time invested in flapping, 41% in gliding, and 7% in hovering. The average number of dives to catch a prey varied according to the different water surface conditions, wind speed, and tidal status. The probability of catching a prey decreased when wind speed increased and the condition of the water surface deteriorated; however, hunting length was similar in both cases. Ospreys at Magdalena Bay decrease the proportion of flapping and increase gliding when wind speed increases and the condition of the water surface changes from calm to choppy. The change from low to high tide favored an increase in the probability of catching a prey and in the number of dives, but hunting length was not affected. We compared our results with studies from other regions.
|
| first_indexed | 2024-03-07T16:25:34Z |
| format | Article |
| id | doaj.art-433fa5fff9104147a7cf2da71721183e |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:25:34Z |
| publishDate | 2007-09-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-433fa5fff9104147a7cf2da71721183e2024-03-03T18:18:15ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532007-09-0133310.7773/cm.v33i3.1241Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, MexicoA Castellanos-Vera0E Rivera1Centro de Investigaciones Biológicas del NoroesteCentro de Investigaciones Biológicas del Noroeste In late autumn 2004 we studied the effect of water surface condition, wind speed, and tidal status on the hunting patterns (flapping, gliding, hovering) and hunting success of the osprey population at Magdalena Bay, Baja California Sur, Mexico. Through focal sightings we obtained the number of hunting dives, hunting length, and the proportion of hunting length invested in each pattern. Hunting success was 61%. Ospreys required an average of 2.4 dives to catch a prey. Hunting lasted 450 seconds on average, with about 50% of this time invested in flapping, 41% in gliding, and 7% in hovering. The average number of dives to catch a prey varied according to the different water surface conditions, wind speed, and tidal status. The probability of catching a prey decreased when wind speed increased and the condition of the water surface deteriorated; however, hunting length was similar in both cases. Ospreys at Magdalena Bay decrease the proportion of flapping and increase gliding when wind speed increases and the condition of the water surface changes from calm to choppy. The change from low to high tide favored an increase in the probability of catching a prey and in the number of dives, but hunting length was not affected. We compared our results with studies from other regions. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1241Pandion haliaetusospreyhunting successBaja California Sur |
| spellingShingle | A Castellanos-Vera E Rivera Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico Ciencias Marinas Pandion haliaetus osprey hunting success Baja California Sur |
| title | Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico |
| title_full | Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico |
| title_fullStr | Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico |
| title_full_unstemmed | Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico |
| title_short | Hunting patterns and success of an osprey (Pandion haliaetus) population at Magdalena Bay, Baja California Sur, Mexico |
| title_sort | hunting patterns and success of an osprey pandion haliaetus population at magdalena bay baja california sur mexico |
| topic | Pandion haliaetus osprey hunting success Baja California Sur |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1241 |
| work_keys_str_mv | AT acastellanosvera huntingpatternsandsuccessofanospreypandionhaliaetuspopulationatmagdalenabaybajacaliforniasurmexico AT erivera huntingpatternsandsuccessofanospreypandionhaliaetuspopulationatmagdalenabaybajacaliforniasurmexico |