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Details van artikel 46 van 103 gevonden artikelen
| Titel: |
Effects of Pool Size on Free-Choice Selections by Atlantic Bottlenosed Dolphins at One Zoo Facility |
| Auteur: |
Shyan, Melissa R. Merritt, David Kohlmeier, Nicole M. Barton, Keri Tenge, Jessica |
| Verschenen in: |
Journal of applied animal welfare science |
| Paginering: | Jaargang 5 (2002) nr. 3 pagina's 215-225 |
| Jaar: |
2002-07-01 |
| Inhoud: |
Dolphin pool design often derives from the concept that cetaceans are ocean based and ipso facto should live in open, deep, watery spaces. This emotionally appealing rationale is not data driven. Researchers report that in the wild, some populations of Atlantic bottlenosed dolphins (Tursiops truncatus) reside in shallower areas (approximately 2 m deep) and move to deeper areas only when resources become scarce. This study observed a well-established pod of 7 Atlantic bottlenosed dolphins at the Indianapolis Zoo and tested the hypothesis that they would select areas similar to their natural habitat and avoid areas of significantly larger volumes of water (in captivity, a combination of depth and surface area). This hypothesis was confirmed. When given free choice, the dolphins used moderate areas 67.8% of the time, smaller areas 36% of the time, and larger areas 2.9% of the time. This study evaluated the choices using 4 models based on surface area, volume (in gallons), depth, and location preferences, respectively. Choices of pool and area were significantly different from surface area, volume, depth, and location preference null hypothesis predictions-suggesting that larger pools in captive facilities may not be the preferred environment for dolphins. |
| Uitgever: |
Routledge |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 46 van 103 gevonden artikelen
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