Isotopic analysis of δ13C, δ15N, and δ34S "a feeding tale" in teeth of the longbeaked common dolphin, Delphinus capensis

被引:63
作者
Alberto Nino-Torres, Carlos
Pablo Gallo-Reynoso, Juan
Galvan-Magana, Felipe
Escobar-Briones, Elva
Macko, Stephen A.
机构
[1] Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Mexico City 04510, DF, Mexico
[2] Ctr Invest Alimentac & Desarrollo AC Carretera Va, Guaymas 85480, Sonora, Mexico
[3] Nacl Ctr Interdisciplinario Ciencias Marinas, Inst Politecn, La Paz, Baja California, Mexico
[4] Univ Virginia, Dept Environm Sci, Charlottesville, VA 22903 USA
关键词
feeding habits; stable isotopes; trophic level; common dolphin; Delphinus capensis; Gulf of California;
D O I
10.1111/j.1748-7692.2006.00065.x
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Stable isotopic analyses of carbon, nitrogen, and sulfur were performed on teeth of different ages and sexes of the longbeaked common dolphin, Delphinus capensis, from the Gulf of California. Similarities in diet are suggested between the sexes, with no significant differences in isotopic compositions being observed. Differences in the delta C-13, delta N-15, and delta S-34 signatures were found among the age groups (nursing calf, juvenile, subadult, and adult). These data suggest that this species is generally a coastal feeder, and that it changes its feeding habits with increasing age, drawing more nutrition from higher trophic level organisms later in life.
引用
收藏
页码:831 / 846
页数:16
相关论文
共 58 条
[1]  
ASKIN DE, 1982, ECOLOGY WHALES DOLPH, P248
[2]  
Barboza PS, 2000, J MAMMAL, V81, P473, DOI 10.1644/1545-1542(2000)081&lt
[3]  
0473:SSIDDA&gt
[4]  
2.0.CO
[5]  
2
[6]  
Boutton T.W., 1991, CARBON ISOTOPE TECHN, P201
[7]   Comparison of aquatic food chains using nitrogen isotopes [J].
Cabana, G ;
Rasmussen, JB .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1996, 93 (20) :10844-10847
[8]   Differentiating aquatic mammal habitat and foraging ecology with stable isotopes in tooth enamel [J].
Clementz, MT ;
Koch, PL .
OECOLOGIA, 2001, 129 (03) :461-472
[9]   THE ROLE OF STANDING DEAD SPARTINA-ALTERNIFLORA AND BENTHIC MICROALGAE IN SALT-MARSH FOOD WEBS - CONSIDERATIONS BASED ON MULTIPLE STABLE-ISOTOPE ANALYSIS [J].
CURRIN, CA ;
NEWELL, SY ;
PAERL, HW .
MARINE ECOLOGY PROGRESS SERIES, 1995, 121 (1-3) :99-116
[10]   INFLUENCE OF DIET ON DISTRIBUTION OF CARBON ISOTOPES IN ANIMALS [J].
DENIRO, MJ ;
EPSTEIN, S .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1978, 42 (05) :495-506