The desert hamster, phodopus roborovskii, is one of the lesserknown laboratory animal models and therefore knowledge of its reproductive system and physiology is limited. Note that there is some confusion over the common names of the species of phodopus. Metabolism and thermoregulation in two races of djungarian. Paternal behaviour in biparental hamsters, phodopus campbelli. Phodopus campbelli ou anao russo campbell e um mamifero da ordem dos roedores, familia cricetinae. This was investigated by comparing the behavior of dwarf hamsters and spraguedawley rats rattus norvegicus in an adjusting delay procedure and applying the theory of behavioral economics to explain the resulting behavior. Abnormal pairing of x and y sex chromosomes during meiosis i. Jackson duke university durham north carolina jane b.
Operant behavior in dwarf hamsters phodopus campbelli. In two experiments, hamsters were trained to leverpress for food reinforcement. It was shown that castration induced a dramatic decrease in blood. In silico analysis of three independent complete viral genomes obtained from cervical adenocarcinoma, oral squamous cell carcinoma and. Coinfection of the siberian hamster phodopus sungorus. Effects of mitochondriatargeted plastoquinone derivative. Aug 16, 2016 effects of mitochondriatargeted plastoquinone derivative antioxidant skq1 on demography of free breeding campbell dwarf hamsters phodopus campbelli kept in outdoor conditions. Two species of hamster belonging to the genus phodopus, campbells dwarf hamster p. Oestrus cycle of the desert hamster phodopus roborovskii.
Albino and pinkeyed dilution mutants in the russian dwarf hamster phodopus campbelli albino and pinkeyed dilution mutants in the russian dwarf hamster phodopus campbelli r. Pdf cutaneous botryomycosis in a campbells russian dwarf. Media in category phodopus campbellithe following 17 files are in this category, out of 17 total. Adrenocortical responses and metabolic responses oxygen consumption to cold were large in 3 solitary, terrestrial species, dwarf hamsters phodopus sungorus, p. Until about 1980 phodopus sungorus was considered to have two subspecies phodopus sungorus sungorus and phodopus sungorus campbelli. It is distinguished from the closely related djungarian hamster as it has smaller ears and no dark fur on its crown. Phodopus sungorus sungorus was known as the djungarian hamster. Male djungarian hamsters, phodopus campbelli, are naturally paternal and actively participate in the birth and care of growing pups. Dwarf hamsters are native to the xeric habitats of central asia with p. Minorsky mercy college dobbs ferry new york robert b. The winter white russian hamster phodopus sungorus is similar but a bit smaller and turns white in winter. The latter name is a reference to its usual seasonal change to a white winter coat.
A genus of hamsters characterized by small size, very short tail, and short, broad feet with hairy soles. Body weights vary with length of photoperiod, with the heaviest weights noted during the longest daylight hours that correspond to summer months. Hamster biology and husbandry fiu research phodopus campbelli. Jun 01, 2010 we investigated operant behavior in a novel species, the dwarf hamster phodopus campbelli. Effects of summer and winterlike acclimation on the thermoregulatory behavior of fed and fasted desert hamsters, phodopus roborovski i journal of thermal biology.
Pdf social transmission of flavor preferences in two. Lisk, 1988, differences in behavioral responses to a competitive mating situation in two species of dwarf hamster phodopus campbelli and phodopus sungorus, j. Previous studies on the oestrus cycle in the phodopus species reported difficulties in determining oestrus cycle stages based on vaginal cytology in djungarian phodopus campbelli 27 and siberian phodopus sungorus 9,11 hamsters. A nursing female hamster, together with her litter, shall be housed in a primary enclosure that contains no other hamsters and that provides at least 121 square inches of floor space. Unfortunately, the sampling procedures were not well described in these studies, but it is rather likely that. The campbells dwarf hamster phodopus campbelli and the djungarian hamster p. Little definitive work has been done on the energy requirement of the hamster, and few research studies include data on energy utilization. Under these conditions, we studied antibody production rates in response to injection with sheep red blood cells srbc.
Social transmission of flavor preferences in two species of hamsters mesocricetus auratus and phodopus campbelli article pdf available in journal of comparative psychology 1174. Phodopus sungorus papillomavirus type 1 psupv1, naturally infecting siberian hamsters phodopus sungorus and clustering in the genus pipapillomavirus pipv, is only the second pv type isolated from the subfamily of hamsters. The secretion of the supplementary sacculi of the dwarf hamster. In experiment 1, rate of reinforcement was manipulated across conditions using four variableinterval schedules of reinforcement delivering one to eight reinforcers per min. Abstractwe studied demographic effects of the mitochondriatargeted antioxidant skq1 on freebreeding campbell dw arf hamsters phodopus campbelli, thomas, 1905, rodentia, cricetidae in an outdoor vivarium with seasonally varying day length and temperatures.
Testosterone and induced humoral immunity in male campbell. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation. The lowest temperature tolerated is 610 degrees c higher in p. Adrenocortical and bioenergetic responses to cold in five. Kocjan 1, lea hosnjak 1, josko racnik 2, marko zadravec 2, nejc bakovnik 2, blaz cigler 3, monique ummelen 4, anton h. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. The animals were kept in pairs from their young age. Pdf 35 two dwarf hamster species of the genus phodopus djungarian hamster. They are the only known hamsters that live in groups and, in some cases, rely on significant contributions by males to the. Circadian activity rhythms of dwarf hamsters phodopus spp. There was no commonly used name for phodopus sungorus.
Mammal species of the world a taxonomic and geographic reference. This should have behavioural and physiological consequences, manifested genetically. Phodopus sungorus is a small hamster with a unique characteristic of dense fur on the. Previous studies in hybrids detected multiple abnormalities of spermatogenesis and a high frequency of dissociation between the x and y chromosomes at the meiotic prophase. The djungarian hamsters are phodopus campbelli russian dwarf and p. Pdf high maternal aggression in dwarf hamsters phodopus. Paternal behaviour in biparental hamsters, phodopus. Phodopus miller, 1910 small desert hamsters species phodopus sungorus pallas, 1773 dzhungarian hamster, striped hairyfooted hamster, striped desert hamster. Cutaneous botryomycosis in a campbells russian dwarf hamster phodopus campbelli article pdf available in journal of exotic pet medicine 234 july 2014 with 401 reads how we measure reads. Therefore, the present paper compares the daily activity rhythm of the three phodopus species under various conditions, from highly. Cheek pouch eversion in an anesthetized russian hamster phodopus sp. Pdf intraspecific organization of dwarf hamsters phodopus. Severtsov institute of ecology and evolution, ras, leninskii prospect 33, moscow 119071, russia.
Coinfection of the siberian hamster phodopus sungorus with. Liskbehavioral interactions differentiate djungarian phodopus campbelli and siberian p. The djungarian dwarf hamster phodopus sungorus is also known as the siberian or winter white dwarf hamster. They are distributed throughout the palearctic zone of eurasia anderson and jones, 1984. Phodopus, a genus of rodents in the hamster subfamily cricetinaea division of the larger family cricetidaeis a lineage of small hamsters native to central asia that display unusual adaptations to extreme temperatures. Although these changes cannot be attributed to pup stimuli, they are nevertheless essential for the expression of complete paternal behaviour during and following. May 26, 2015 in this paper we report the results of testosterone manipulation in the blood of male campbell dwarf hamsters phodopus campbelli thomas, 1905 through castration, followed by testosterone treatment. Bilateral hydronephrosis with urinary tract infection in a. The lips and cheeks have white fur, and the region around the ears is grey. A dark dorsal stripe runs from the base of the neck to the base of the tail. This study reports the results of a direct, observational, field study of scent marking behavior in wild, free ranging population of a small, nocturnal rodent the djungarian hamster, phodopus campbelli. Malemale and femalefemale dyads of two species of phodopus, the djungarian hamster, p. Provided, however, that in the case of nursing female dwarf.
Molecular characterization, prevalence and clinical relevance of phodopus sungorus papillomavirus type 1 psupv1 naturally infecting siberian hamsters phodopus sungorus bostjan j. Abstractwe studied demographic effects of the mitochondriatargeted antioxidant skq1 on free breeding campbell dw arf hamsters phodopus campbelli, thomas, 1905, rodentia, cricetidae in an outdoor vivarium with seasonally varying day length and temperatures. Sequence analysis showed 97 % sequence similarity to helicobacter ganmani. Phodopus are reported to be more docile and less aggressive than syrian hamsters hoffmann, 1981. Mar 24, 2015 the campbells dwarf hamster phodopus campbelli and the djungarian hamster p. In this paper we report the results of testosterone manipulation in the blood of male campbell dwarf hamsters phodopus campbelli thomas, 1905 through castration, followed by testosterone treatment. The campbells russian dwarf hamster phodopus campbelli is about 2 to 3 inches long, 1 to 2 ounces, and round and fuzzy with plentiful fur on his tail and feet. Oestrus cycle of the desert hamster phodopus roborovskii, satunin. High maternal aggression in dwarf hamsters phodopus campbelli and p. In addition, we report the coinfection of these siberian hamsters with a campylobacter sp. Behavioral interactions differentiate djungarian phodopus. Adult males are about 11 cm long while mature females are about 9 cm long.
Dermatitis in a siberian hamster phodopus sungorus. Solidfloored cages with various kinds of bedding have been used for phodopus. Females choose gentle, but not healthy or macho males in campbell dwarf hamsters phodopus campbelli thomas 1905 konstantin a. Hybrid sterility is an important step in the speciation process. The fur on the throat, abdomen and legs is white, and the fur on top of the paws is silvery white. Campbellin hamsteri, campbells dwarf hamster phodopus. Wasserman university of california san diego peter v. We studied demographic effects of the mitochondriatargeted antioxidant skq1 on freebreeding campbell dwarf hamsters phodopus campbelli, thomas, 1905, rodentia, cricetidae in an outdoor vivarium with seasonally varying day length and temperatures. Cutaneous botryomycosis in a campbells russian dwarf hamster phodopus campbelli article pdf available in journal of exotic pet medicine 234.
Phodopus campbelli wikispecies, free species directory. On physical examination, the hamster was depressed and in poor body condition. Here, we describe patterns of reproductive isolation between two species of dwarf hamsters, phodopus sungorus and phodopus campbelli. Molecular characterization, prevalence and clinical. Phodopus sungorus is a small hamster with a unique characteristic of dense fur on the footpads, which accounts for the common name of hairyfooted hamster. Abnormal pairing of x and y sex chromosomes during meiosis. Jan 11, 2015 differential effects of paternal presence on pup survival in two species of dwarf hamster phodopus sungorus and phodopus campbelli. Molecular characterization, prevalence and clinical relevance. Paternal responsiveness in biparental dwarf hamsters phodopus campbelli does not require estradiol hormones and behavior. This study investigated the time course of vaginal and behavioural oestrus cycles by means of vaginal smear cytology, serum luteinizing hormone lh levels, wheelrunning activity patterns, and pairing tests. The animals w ere kept in pairs fro m their y oung age.
Campbell, who collected the first one in mongolia on 1 july 1902. The present experiment investigated whether dwarf hamsters phodopus campbelli demonstrate temporal discounting. Bank voles clethrionomys glareolus showed intermediate responses. Females choose gentle, but not healthy or macho males in. Campbells dwarf hamster phodopus campbelli is a species of hamster. Chinese stripedback hamster cricetulus migratorius. Pdf cutaneous botryomycosis in a campbells russian.
Male djungarian hamsters, phodopus campbelli, are naturally paternal and. Phodopus campbelli wikipedia, a enciclopedia livre. However, it is not a legal authority for statutory or regulatory purposes. Effects of mitochondriatargeted plastoquinone derivative antioxidant skq1 on demography of free breeding campbell dwarf hamsters phodopus campbelli kept in outdoor conditions. On all domestic dwarf hamsters campbells, chinese, roborovskis, winter whites there is a single scent gland located on their undersides, a bit below midline campbells dwarf hamster phodopus campbelli is a species of hamster in the genus campbells dwarf hamster typically has a narrow dorsal stripe compared to the free. Effects of mitochondriatargeted plastoquinone derivative antioxidant skq1 on demography of freebreeding campbell dwarf hamsters phodopus campbelli kept in outdoor conditions. Pdf a 10monthold male campbells russian hamster phodopus. Phodopus sungorus lhiver blanc et phodopus campbelli campbell. In the scientific literature, both the older and newer common names are used.
Males undergo hormonal changes several days prior to the birth of their pups. Macerated fetuses were found in the abdomen, some attached by placentas to the abdominal wall, but most were free in the abdominal. Phodopus campbelli thomas, 1905 phodopus sungorus pallas, 1773 phodopus roborovskii satunin, 1903 phodopus, a genus of rodents in the hamster subfamily cricetinaea division of the larger family cricetidaeis a lineage of small hamsters native to central asia that display unusual adaptations to extreme temperatures. Dermatitis in a siberian hamster phodopus sungorus lab. These hamsters can be housed in samesex groups, and breeding pairs can stay together for the duration of their breeding life lerchl, 1995. Campbells dwarf hamster simple english wikipedia, the free. Campbells dwarf hamster simple english wikipedia, the. Media in category phodopus the following 2 files are in this category, out of 2 total. Species composition and interspecific behavior affects activity pattern of free living desert hamsters in the alashan desert. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Previous studies in hybrids detected multiple abnormalities of spermatogenesis and a high frequency of dissociation between the x and y chromosomes at. It was given its common name by oldfield thomas in honor of charles william campbell, who collected the first specimen in mongolia on july 1, 1902. Body weights vary with length of photoperiod, with the heaviest weights noted during the longest daylight hours that correspond to summer.
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