Results 51 to 60 of about 1,172,345 (267)

All their eggs in one basket: a rocky reef nursery for the longnose skate (Raja rhina Jordan & Gilbert, 1880) in the southern California Bight [PDF]

open access: yes, 2008
Skates (family Rajidae) are oviparous and lay tough, thick-walled eggs. At least some skate species lay their eggs in spatially restricted nursery grounds where embryos develop and hatch (Hitz, 1964; Hoff, 2007).
Cochrane, Guy   +4 more
core  

Incubation of penguin eggs [PDF]

open access: yes, 2003
The preservation of rare and endangered species of birds requires finding efficient, and above all successful, methods of breeding them in captivity. One strategy adopted is to remove eggs from the mother, making her lay more eggs, and then incubating ...
Edwards, Carina   +2 more
core  

Variability of clutch size in Cormorant (Phalacrocorax carbo sinensis) at the Jeziorsko Reservoir (Central Poland) in 2004 [PDF]

open access: yes, 2008
The analysis of the clutch size variability in Cormorant (P. carbo sinensis) was based on study results in colony at the “Jeziorsko Reservoir” (central Poland) in 2004. There were used 328 broods controlled 3-5 times in the season.
Janiszewski, Tomasz   +4 more
core  

EVIDENCE OF COMMUNAL OVIPOSITION AND NEST ABANDONMENT IN THE NORTHERN TWO-LINED SALAMANDER (EURYCEA BISLINEATA, (GREEN, 1818)) IN NORTHEASTERN CONNECTICUT [PDF]

open access: yes, 2014
Most plethodontid salamanders oviposit their eggs in an individual nest and attend the clutch until hatching. Here, we describe aspects of the reproduction of Eurycea bislineata (Northern Two-lined Salamander) from three field sites in northeastern ...
Ferguson, Taylor F.   +2 more
core   +2 more sources

A new molecular diagnostic tool for surveying and monitoring Triops cancriformis populations [PDF]

open access: yes, 2017
© 2017 Sellers et al. The tadpole shrimp, Triops cancriformis, is a freshwater crustacean listed as endangered in the UK and Europe living in ephemeral pools.
Griffin, Larry R.   +3 more
core   +3 more sources

The Effects of X-rays and Beta Rays (Tritium) on the Growth of \u3cem\u3eRickettsia mooseri\u3c/em\u3e and \u3cem\u3eRickettsia akari\u3c/em\u3e in Embryonate Eggs [PDF]

open access: yes, 1960
The growth of Rickettsia mooseri was accelerated and quantitatively increased in embryonate eggs containing tritium oxide at levels of 180, 90, and 45 mc./egg during the growth period.
Greiff, Donald   +3 more
core   +1 more source

Early egg traits in Cancer setosus (Decapoda, Brachyura): effects of temperature and female size

open access: yes, 2009
Previous study on Cancer setosus (Molina, 1782) had shown that latitudinal changes in temperature control the number of annual egg masses. This study focused on the effects of pre-oviposition temperature and female size on egg-traits in C.
Brey, T., Fischer, S., Thatje, S.
core   +1 more source

SAP Business Objects, SAP Portal, Employee & Management Self Service [PDF]

open access: yes, 2015
Im Rahmen meiner Bachelorarbeit behandle ich die Entwicklung von Human Capital Management Berichte, welche auf dem Portal der HES-SO Valais / Wallis bereitgestellt werden. Die Arbeit wurde während einer Dauer von 14 Wochen (28. April - 15. Juni 2014 / 23.
Eggs, Pascal, Maier, Werner
core  

New oral anthelmintic intraruminal delivery device for cattle

open access: yesJournal of Pharmacy and Bioallied Sciences, 2014
Background: The purpose of this work was to develop a new oral drug delivery system intended for cattle and that enables delayed and pulsed release of an anthelmintic agent. Materials: This new tailored dosage form, also called reticulo-rumen device (RRD)
Thierry F Vandamme
doaj   +1 more source

The evolution of crocodilian nesting ecology and behavior

open access: yesEcology and Evolution, 2020
Crocodilians comprise an ancient and successful lineage of archosaurs that repeatedly raises questions on how they survived a mass extinction and remained relatively unchanged for ~100 million years.
Christopher M. Murray   +2 more
doaj   +1 more source

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