東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Using Stable Isotopes to Determine F...

Hsu, Sharon .

Linked to FindBook

Google Book

Amazon

博客來

Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean./
Author:	Hsu, Sharon .
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	50 p.
Notes:	Source: Masters Abstracts International, Volume: 82-01.
Contained By:	Masters Abstracts International82-01.
Subject:	Biology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27958272
ISBN:	9798662400276

Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean.
Hsu, Sharon .

Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 50 p.

Source: Masters Abstracts International, Volume: 82-01.

Thesis (M.S.)--San Jose State University, 2020.

This item must not be sold to any third party vendors.

Reproductive output has long been linked to habitat quality and resource availability. Individuals foraging in high-quality habitats with high resource availability will have better body conditions and higher survival rates, as well as greater reproductive output. Post-nesting, Western Caribbean leatherback turtles are known to migrate to at least two foraging regions: the western North Atlantic and Gulf of Mexico. This study had three objectives: [1] measure δ13C and δ15N values in bulk skin tissue of females nesting in Parismina, Costa Rica to reveal prior foraging region; [2] assess influence of foraging region on female body size and reproductive output; and [3] conduct a comprehensive review of existing stable isotope data for various taxa (from baseline producers to higher order consumers) and create δ13C and δ15N isoscapes to use as a reference for the Gulf of Mexico and western North Atlantic. It was not possible to infer foraging region for skin samples collected in Parismina based on stable isotope values, nor was there a relationship between stable carbon values and reproductive output. Synthesized isoscapes from published stable isotope data showed substantial variation between taxa and sampling regions. Stable carbon values were higher in the Gulf of Mexico than the western North Atlantic for leatherbacks, but no other consistent trends were distinguishable. Although I was unable to validate it as a primary technique to study leatherback movements between nesting and foraging grounds, stable isotope analysis still holds important conservation value for leatherbacks in conjunction with satellite tracking. This study highlights the need for more stable isotope data and longer-term data collection.

ISBN: 9798662400276Subjects--Topical Terms:

522710
Biology.
Subjects--Index Terms:

Foraging

Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean.
LDR:02997nmm a2200385 4500 001 2276304
005 20210503061403.5
008 220723s2020 ||||||||||||||||| ||eng d
020 $a 9798662400276
035 $a (MiAaPQ)AAI27958272
035 $a AAI27958272
040 $a MiAaPQ $c MiAaPQ
100 1 $a Hsu, Sharon . $3 3554578
245 1 0 $a Using Stable Isotopes to Determine Foraging Areas of Leatherback Sea Turtles: Limitations of the Isotope Tracking Technique in the Western Atlantic Ocean.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 50 p.
500 $a Source: Masters Abstracts International, Volume: 82-01.
500 $a Advisor: McDonald, Birgitte I.
502 $a Thesis (M.S.)--San Jose State University, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Reproductive output has long been linked to habitat quality and resource availability. Individuals foraging in high-quality habitats with high resource availability will have better body conditions and higher survival rates, as well as greater reproductive output. Post-nesting, Western Caribbean leatherback turtles are known to migrate to at least two foraging regions: the western North Atlantic and Gulf of Mexico. This study had three objectives: [1] measure δ13C and δ15N values in bulk skin tissue of females nesting in Parismina, Costa Rica to reveal prior foraging region; [2] assess influence of foraging region on female body size and reproductive output; and [3] conduct a comprehensive review of existing stable isotope data for various taxa (from baseline producers to higher order consumers) and create δ13C and δ15N isoscapes to use as a reference for the Gulf of Mexico and western North Atlantic. It was not possible to infer foraging region for skin samples collected in Parismina based on stable isotope values, nor was there a relationship between stable carbon values and reproductive output. Synthesized isoscapes from published stable isotope data showed substantial variation between taxa and sampling regions. Stable carbon values were higher in the Gulf of Mexico than the western North Atlantic for leatherbacks, but no other consistent trends were distinguishable. Although I was unable to validate it as a primary technique to study leatherback movements between nesting and foraging grounds, stable isotope analysis still holds important conservation value for leatherbacks in conjunction with satellite tracking. This study highlights the need for more stable isotope data and longer-term data collection.
590 $a School code: 6265.
650 4 $a Biology. $3 522710
650 4 $a Biogeochemistry. $3 545717
650 4 $a Biological oceanography. $3 2122748
653 $a Foraging
653 $a Gulf of Mexico
653 $a Isoscape
653 $a Leatherback sea turtle
653 $a Stable isotope analysis
653 $a Western Atlantic Ocean
690 $a 0306
690 $a 0425
690 $a 0416
710 2 $a San Jose State University. $b Marine Science. $3 3169799
773 0 $t Masters Abstracts International $g 82-01.
790 $a 6265
791 $a M.S.
792 $a 2020
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27958272