Results 31 to 40 of about 24,187 (310)

First year growth in the lithodids Lithodes santolla and Paralomis granulosa reared at different temperatures [PDF]

open access: yes, 2005
The southern king crab, Lithodes santolla Molina, and stone crab, Paralomis granulosa Jacquinot, inhabit the cold-temperate waters of southernmost South America (southern Chile and Argentina), where stocks of both species are endangered by overfishing ...
Anger, K.   +4 more
core   +2 more sources

Seals at sea: modelling seal distribution in the German bight based on aerial survey data [PDF]

open access: yes, 2009
The Wadden Sea is an important habitat for harbour seals and grey seals. They regularly haul-out on sandbanks and islands along the coast. Comparably little is known about the time seals spend at sea and how they use the remainder of the North Sea.
Herr, H.   +3 more
core   +7 more sources

Effect of zinc oxide, potassium iodide and withdrawal diet as alternative moulting methods on performance of commercial laying hens

open access: yesJournal of Applied Animal Research, 2020
The aim of this study was to compare applicability of the non-feed removal method with the feed withdrawal method by using zinc Oxide and potassium iodide in moulting on productive performance.
Mohammad Kazemi Fard   +4 more
doaj   +1 more source

Number of larval instars and sex-specific plasticity in the development of the small heath butterfly, Coenonympha pamphilus (Lepidoptera: Nymphalidae)

open access: yesEuropean Journal of Entomology, 2006
The number of larval moults, larval head capsule width and pupal weight were investigated in both direct-developing and diapausing individuals of a South-West European population of Coenonympha pamphilus.
Enrique GARCÍA-BARROS
doaj   +1 more source

Biological compatibility between two temperate lineages of brown dog ticks, Rhipicephalus sanguineus (sensu lato) [PDF]

open access: yes, 2018
Background: The brown dog tick Rhipicephalus sanguineus (sensu stricto) is reputed to be the most widespread tick of domestic dogs worldwide and has also been implicated in the transmission of many pathogens to dogs and humans.
Capelli, Gioia   +8 more
core   +2 more sources

Physiological strategies of moult-migrating Black-necked Grebes (Podiceps nigricollis) in a polluted staging site according to blood chemistry

open access: yesAvian Research, 2023
After breeding, Black-necked Grebes (Podiceps nigricollis) perform a moult-migration to autumn hypersaline staging sites, where they moult the flight feathers and forage on superabundant brine shrimp (Artemia spp.) before leaving for wintering areas ...
Juan A. Amat   +6 more
doaj   +1 more source

The kunitz domain protein BLI-5 plays a functionally conserved role in cuticle formation in a diverse range of nematodes [PDF]

open access: yes, 2010
The cuticle of parasitic nematodes performs many critical functions and is essential for proper development and for protection from the host immune response.
Antony P. Page   +43 more
core   +1 more source

Implantation of subcutaneous heart rate data loggers in southern elephant seals (Mirounga leonina) [PDF]

open access: yes, 2017
Unlike most phocid species (Phocidae), Mirounga leonina (southern elephant seals) experience a catastrophic moult where they not only replace their hair but also their epidermis when ashore for approximately 1 month.
Ancel, André   +7 more
core   +3 more sources

Does Water Temperature Affect the Timing and Duration of Remigial Moult in Sea Ducks? An Experimental Approach. [PDF]

open access: yesPLoS ONE, 2016
Aquatic birds have high cost of thermoregulation, especially during the moulting period, yet the effect of water temperature on the moulting strategy of aquatic birds has rarely been studied.
Anouck Viain, Magella Guillemette
doaj   +1 more source

Validating the use of intrinsic markers in body feathers to identify inter-individual differences in non-breeding areas of northern fulmars [PDF]

open access: yes, 2016
Acknowledgments We thank Claire Deacon, Gareth Norton and Andrea Raab for help with laboratory work at the University of Aberdeen, and Barry Thornton and Gillian Martin for running stable isotope analysis at the James Hutton Institute.
Graham, Isla M.   +4 more
core   +2 more sources

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