Results 91 to 100 of about 7,897 (215)

Characterisation of major histocompatibility complex class I genes in Japanese Ranidae frogs. [PDF]

open access: yes, 2016
The major histocompatibility complex (MHC) is a key component of adaptive immunity in all jawed vertebrates, and understanding the evolutionary mechanisms that have shaped these genes in amphibians, one of the earliest terrestrial tetrapods, is important.
IGAWA Takeshi   +7 more
core   +2 more sources

Ampliación de la distribución altitudinal y geográfica de Lithobates johni y nuevo registro para Veracruz, México

open access: yesRevista Mexicana de Biodiversidad, 2015
Se presentan adiciones a la distribución geográfica y altitudinal de Lithobates johni, como nuevo registropara la herpetofauna del estado de Veracruz, México.
Edgar Ahmed Bello-Sánchez   +4 more
doaj   +1 more source

Taxonomic composition and ploidy level among European water frogs (Anura: Ranidae: Pelophylax) in eastern Hungary [PDF]

open access: yes, 2018
K
Benovics, Michal   +4 more
core   +1 more source

Моделирование трансформаций гемиклональных популяционных систем зеленых лягушек (Pelophylax esculentus complex; Amphibia, Ranidae) с помощью рекуррентных разностных уравнений [PDF]

open access: yes, 2010
Описаны принципы построения математической модели гемиклональных популяционных систем европейских зеленых лягушек. Модель с дискретным временем и перекрывающимися поколениями основана на рекуррентных разностных уравнениях.
Кравченко, М.А.   +1 more
core  

Nuclear Abnormalities in Erythrocytes of Frogs From Wetlands and Croplands of Western Ghats Indicate Environmental Contaminations [PDF]

open access: yes, 2017
Anuran amphibians are the biological models to assess the influence of environmental contamination. We conducted nuclear abnormality assessment and micronuclei test in erythrocytes of frogs to identify an early influence of environmental contaminations ...
Krishnamurthy, S. V. (Sannanegunda)   +2 more
core   +1 more source

Effects of hydroperiod on metamorphosis in \u3ci\u3eRana sphenocephala\u3c/i\u3e [PDF]

open access: yes, 2001
Hydroperiod, the time a temporary pond holds water, is an important factor influencing recruitment in amphibian populations and structuring amphibian communities.
Ryan, Travis J, Winne, Christopher T.
core   +1 more source

Rana dalmatina-ren (Amphibia, Ranidae) presentziari buruz Nafarroan. [PDF]

open access: yesMunibe Ciencias Naturales, 1984
Se han localizado una puesta y varias larvas de Rana dalmatina en Arbizu (Navarra), U.T.M. 30TWN75. Se describe el hábitat donde se localizó la puesta. Esta especie se incluye definitivamente en la   fauna navarra.
ARRAIAGO, M.J., BEA, A.
doaj  

Gamete production patterns and mating systems in water frogs of the hybridogenetic Pelophylax esculentus complex in northeastern Ukraine [PDF]

open access: yes, 2016
Hybridization and polyploidy play an important role in animal speciation. European water frogs of the Pelophylax esculentus complex demonstrate unusual genetic phenomena associated with hybridization, clonality and polyploidy which presumably indicate an
Biriuk, O.V.   +7 more
core   +1 more source

Rana berlandieri [PDF]

open access: yes, 1991
Number of Pages: 4Integrative BiologyGeological ...
Platz, James E.
core   +1 more source

Сперматогенез у триплоидных Pelophylax esculentus (Amphibia, Anura) из Северско-Донецкого центра разнообразия зеленых лягушек (Украина, Харьковская область) [PDF]

open access: yes, 2011
Изучали сперматогенез триплоидных межвидовых гибридов зеленых лягушек методом кариоанализа в давленых препаратах семенников. Изучены самцы Pelophylax esculentus из Северско-Донецкого центра разнообразия зеленых лягушек (Харьковская область, Украина ...
Кечеджи, А.Е.   +2 more
core  

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