Temperature sex determination, incubation duration, and hatchling sexual dimorphism in the Española Giant Tortoise (Chelonoidis hoodensis) of the Galápagos Islands / (Registro nro. 13176)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04056nab a22004337a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EC-PaCDF |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220525145830.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180108t20172017xxu|||||s||||||0||||eng|| |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EC-PaCDF |
| Language of cataloging | spa |
| Transcribing agency | EC-PaCDF |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 082 40 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Edition number | 23 |
| Classification number | 597.924 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sancho, Ana. |
| Relator term | autor |
| 245 10 - TITLE STATEMENT | |
| Title | Temperature sex determination, incubation duration, and hatchling sexual dimorphism in the Española Giant Tortoise (Chelonoidis hoodensis) of the Galápagos Islands / |
| Statement of responsibility, etc. | Ana Sancho ...[et al.]. |
| 260 3# - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Date of publication, distribution, etc. | 2017. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | : 44-50 p. (e146) |
| 520 0# - SUMMARY, ETC. | |
| Summary, etc. | Sex determination (SD) mode is documented in only 26% of turtle species; temperature dependent sex determination (TSD) is common but not ubiquitous. SD mode is documented for only five tortoise species; all of these have TSD with the Ia pattern. Temperature dependent sex determination was reported in Galápagos tortoises (Chelonoidis nigra complex) in 1991 based solely on a personal communication. Here we report TSD pattern, incubation duration, and hatchling sexual dimorphism in the Española Giant Tortoise (Chelonoidis hoodensis) of the Galápagos Islands based on experiments conducted in 1986‒87. We found strong evidence for Type Ia TSD, a pivotal incubation temperature of 28.3 °C, and a range for transition temperatures of 25.2‒31.4 °C. We also found longer incubation durations for male than for female hatchlings, and describe a new method for sex identification for hatchling tortoises. These results have important implications for incubation of eggs for head-starting captive breeding, especially for conservation purposes, and for interpretation of data from natural nests. We caution against the assumption that all C. nigra complex species have similar pivotal or transitional temperature ranges, and encourage evaluation of more species in this group. |
| 520 0# - SUMMARY, ETC. | |
| Summary, etc. | El modo de determinación sexual (DS) solamente se ha documentado para el 26% de las especies de tortugas; la determinación del sexo por la temperatura (DST) en las tortugas es común pero no es generalizada. <br/>Se conoce el modo SD solamente para cinco especies de tortugas; todas ellas tienen el modo de DST. Se reportó en 1991 la determinación TSD para las tortugas de Galápagos (complejo Chelonoidis nigra), sobre la base de una comunicación personal. En este trabajo reportamos el patrón de DST, la duración de la incubación y el dimorfismo sexual a la eclosión en Chelonoidis hoodensis (la Tortuga Gigante de Española de las Islas Galápagos), sobre la base de experimentos realizados entre 1986‒87. Nosotros encontramos firme evidencia para el DST tipo Ia, una temperatura pivotal de incubación de 28.3 °C y un rango de temperaturas transicionales de 25.2‒31.4 °C. También detectamos que los períodos de incubación hasta la eclosión de tortugas machos fueron más prolongados en comparación con las hembras. Estos resultados tienen implicaciones ventajosas e importantes para la incubación de los huevos y para la interpretación de datos tomados de nidos naturales. Sugerimos evitar el inferir que todas las especies del complejo C. nigra tengan rangos de temperaturas transicionales similares y sugerimos la evaluación de más especies dentro de este grupo.<br/> |
| 546 ## - LANGUAGE NOTE | |
| Language note | Inglés |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Turtle |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Tortuga |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Reproduction |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Reproducción |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Egg |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Huevo |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Conservation |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Conservación |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Life history |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Historial de vida |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Husbandry |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Cría |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gutzke, William H. |
| Relator term | autor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Snell, Howard L. |
| 9 (RLIN) | 945 |
| Relator term | autor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rea, Solanda. |
| Relator term | autor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wilson Marcia. |
| Relator term | autor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Burke, Russell L. |
| Relator term | autor |
| 773 0# - HOST ITEM ENTRY | |
| Related parts | Vol. 11, No. 2 (December 2017), p. 44-50. |
| Title | Amphibian & Reptile Conservation |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://amphibian-reptile-conservation.org/pdfs/Volume/Vol_11_no_2/ARC_11_2_%5BGeneral_Section%5D_44-50_e146_high_res.pdf |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Artículo |
| Withdrawn status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Home library | Current library | Shelving location | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | Galápagos | Corley Smith Library | Corley Smith Library | Artículos | 08/01/2018 | 597.924 SAN 2017 | 2018-2021 | 08/01/2018 | 08/01/2018 | Artículo | ||||
| Dewey Decimal Classification | Galápagos | Corley Smith Library | Corley Smith Library | Colección PDF | 08/01/2018 | 597.924 SAN 2017 | 2021-1818 | 08/01/2018 | 08/01/2018 | Documento electrónico |