کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9448824 | 1305958 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Respiratory frequency, dive behaviour and social interactions of leatherback turtles, Dermochelys coriacea during the inter-nesting interval
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We identified three different underwater locomotory activities (subsurface swimming, V-shaped dives and U-shaped dives) from video and TDR data that varied in their mean depth, duration and a number of other parameters. Overall respiratory frequency (overall fR) was significantly different between all locomotory activities, with turtles taking 1.7±0.1 breaths minâ1 while subsurface swimming, 0.78 breaths minâ1 after V-shaped dives and 0.57 breaths minâ1 after U-shaped dives. Descent rates and ascent rates were significantly faster in U-shaped dives (descent 0.19±0.010 m sâ1, ascent 0.28±0.015 m sâ1) than in V-shaped dives (descent 0.10±0.008 m sâ1, ascent 0.12±0.012 m sâ1). Flipper stroke rates were significantly lower during the bottom component of U-shaped dives (0.18±0.02 strokes sâ1) than during the descent (0.29±0.03 strokes sâ1) or ascent (0.29±0.03 strokes sâ1). From overall fR and flipper stroke rate data, we inferred that turtles used less energy during U-shaped dives than the other activity types. We recorded interactions between male turtles and the study females that lasted up to 11 min, during which male turtles displayed the characteristic courtship behaviour of sea turtles. It appeared that females attempted to avoid males by aborting ascent and extending dive duration to swim to the sea floor when males were present.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Experimental Marine Biology and Ecology - Volume 316, Issue 1, 9 March 2005, Pages 1-16
Journal: Journal of Experimental Marine Biology and Ecology - Volume 316, Issue 1, 9 March 2005, Pages 1-16
نویسندگان
Richard D. Reina, Kyler J. Abernathy, Greg J. Marshall, James R. Spotila,