TITLE

Overwintering in the nest by hatchling map turtles (Graptemys geographica)

AUTHOR(S)
Nagle, Roy D.; Lutz, Clayton L.; Pyle, Andrew L.
PUB. DATE
August 2004
SOURCE
Canadian Journal of Zoology;Aug2004, Vol. 82 Issue 8, p1211
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We monitored 75 natural nests of Graptemys geographica (Lesueur, 1817) in central Pennsylvania to determine the tactics and patterns of hatchling emergence. Following incubation, all hatchlings in 95% of nests delayed emergence from their natal nest cavities throughout autumn and winter until the following spring. Nests were constructed in a variety of substrates ranging from loose sand or coal to hard-packed clay mixed with gravel. Time from egg deposition to natural hatchling emergence averaged 333 days. During winter, hatchlings tolerated subzero temperatures as low as –8 °C, which are lethal to hatchlings of some sympatric species. Emergence occurred from 10 April to 25 May, and most hatchlings were found during morning following rain. There was an interactive effect of minimum daily air temperature and rainfall level 1 day prior to emergence on the number of hatchlings emerging each day. One half of all hatchlings found dead were contained in nests in which autumn emergence had apparently occurred. We speculate that autumn emergence by hatchlings of some turtle species may be an adaptive response to nest conditions likely to provide poor environments for successful overwintering.
ACCESSION #
15665614

 

Related Articles

  • Fecundity, atresia, and spawning strategies of Atlantic herring (Clupea harengus). Damme, Cindy J.G. van; Dickey-Collas, Mark; Rijnsdorp, Adriaan D.; Kjesbu, Olav S. // Canadian Journal of Fisheries & Aquatic Sciences;Dec2009, Vol. 66 Issue 12, p2130 

    Atlantic herring (Clupea harengus) have contrasting spawning strategies, with apparently genetically similar fish “choosing” different spawning seasons, different egg sizes, and different spawning areas. In the North Sea, both autumn- and winter-spawning herring share the same summer...

  • Powerful Eyes.  // Odyssey;Jan2009, Vol. 18 Issue 1, p2 

    The article discusses the study regarding the hatching of cuttlefish eggs and how these creatures identify their prey during hatching. It states that baby cuttlefish who were exposed most either to crabs or shrimps could select their future prey.

  • Jawfish guard the next generation by mouth.  // National Geographic;Jun97, Vol. 191 Issue 6, p143 

    Looks at how the four-inch-long-yellowhead jawfish in the Caribbean incubate and protects its eggs by storing them in its mouth. The need for the fish to fast while incubating the eggs.

  • Marianvale Blue Murray cod. KERTHYASA, MAYA // Australian Gourmet Traveller;Feb2014, Vol. 14 Issue 2, p29 

    The article offers information on Murray cod produced by Marianvale Blue at its property in Goulburn, New South Wales including brooding technique, reasons why Murray cod is an endangered species, and where to find the fish.

  • BC'S OFTEN OVERLOOKED BURBOT. Harris, Brian // BC Outdoors Sport Fishing & Outdoor Adventure;Nov/Dec2016, Vol. 72 Issue 6, p6 

    The article offers the author's insights on the diversity and provincial distribution of burbot (Lota lota) in British Columbia (BC), and mentions topics including the classification of fish, the incubation of fish eggs, and suitable habitat.

  • Preventive effects of amino acids and glutathione on the formaldehyde-induced denaturation of myofibrillar proteins. ABE, Eriko; HAYAKAWA, Kazunori; KIMURA, Meiko; KIMURA, Ikuo; SEKI, Nobuo // Fisheries Science;Jun2003, Vol. 69 Issue 3, p605 

    Formaldehyde (FA)-induced denaturation of myofibrillar proteins and its prevention were investigated by means of measuring the solubility, adenosine triphosphatase (ATPase) activity, and thermal gel formability of myofibrils and surimi proteins in the presence and absence of free amino acids and...

  • The reproductive biology of a Central American cichlid Neetroplus nematopus in Lake Xiloá, Nicaragua. McKaye, Kenneth R.; Hale, Jeremy; van den Berghe, Eric P. // Current Zoology;2010, Vol. 56 Issue 1, p43 

    This study was conducted to provide a five-year database on the breeding seasonality and breeding biology of a Central American cichlid fish Neetroplus nematopus, a biparental substratum–spawning cichlid that cares for its eggs, wrigglers, and fry for up to six weeks. A total of 503...

  • Spawning of South Caspian Kutum (Rutilus frisii kutum) in Most Migratory River of South Caspian Sea. Yousefian, M.; Mosavi, H. // Asian Journal of Animal & Veterinary Advances;2008, Vol. 3 Issue 6, p437 

    The objective of this study was to study the status and the normative of reproduction of Caspian Kutum (Rutilus frisii kutum). The artificial reproduction in four rivers has investigated and the reproduction normative of this fish was compared. Based on the data of 2002, in total, about 30000...

  • rEffect of 17 α, 20 β-Dihydroxyprogesterone on In vitro Oocyte Maturation in Persian Sturgeon (Acipenser persicus) and Sterlet (Acipenser ruthenus). Azarin, Hajar; Imanpoor, Mohammad Reza; Pourdehghani, Mohammad // Journal of Aquaculture & Research Development;2013, Vol. 4 Issue 3, p1 

    The in vitro effect of 17 α, 20 β-Dihydroxyprogesterone on the maturation of Persian sturgeon (Acipenser persicus) oocytes for 7, 10, 12, 24 and 30 hr and sterlet (Acipenser ruthenus) oocytes for 12, 18 and 24 hr of incubation was investigated. The oocytes were incubated in SIS, RM2, L-15...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics