| major histocompatibility complex (mhc) class ii polymorphism and paternity in the monogamous hypogeomys antimena, the endangered, largest endemic malagasy rodent. | sequence variation at a major histocompatibility complex (mhc) class ii gene was examined in hypogeomys antimena, a monogamous endemic rodent of madagascar. the study was conducted throughout its remaining geographical range (20 x 40 km) by direct sequencing and single-strand conformation polymorphism (sscp). the objectives of the study were: (i) to investigate levels of polymorphism in the mhc complex of a highly endangered species that experienced a severe reduction in population size; and (ii ... | 1999 | 10447867 |
| sex-specific predation on a monogamous rat, hypogeomys antimena (muridae: nesomyinae). | sex-specific predation on adult individuals is often predicted by different behaviour in males and females resulting from different reproductive strategies and social systems. high predation pressure and the need for biparental care are considered a possible ecological basis for the evolution of monogamy, the most puzzling social system in mammals. in species where adults and offspring are vulnerable to the same predators, males and females may protect their offspring to different extents becaus ... | 2000 | 10877886 |
| effects of habitat fragmentation and changes of dispersal behaviour after a recent population decline on the genetic variability of noncoding and coding dna of a monogamous malagasy rodent. | while interactions among demography, behaviour and genetic structure are well-documented for neutral genetic markers, the role of these parameters and the effects of genetic drift and selection are considerably less well understood in functional genes, such as the major histocompatibility complex (mhc). in this study, the consequences of habitat fragmentation and the effects of a current population decline on noncoding (mitochondrial dna) and two coding mhc loci (dqa, drb) with different functio ... | 2003 | 12969486 |
| infection with the strobilocercus of taenia taeniaeformis in a malagasy giant jumping rat (hypogeomys antimena). | an adult male malagasy giant jumping rat (hypogeomys antimena) kept at zoo duisburg was presented for clinical examination because of a distended abdomen and a history of lethargy and weakness. general examination findings consisted of an enlarged soft and fluctuating abdomen, suggestive of ascites. digital radiography revealed multiple cloud-like radiopaque lesions in the cranial abdominal area, as well as an overall decrease in visibility of detail of the abdominal organs. ultrasound examinati ... | 2012 | 23272362 |
| [description of a new tick indigenous to madagascar: ornithodoros grenieri n.sp. (ixodoidea, argasidae), parasite of the cricetid rodent, hypogeomys antimena grandidier, 1869]. | | 2013 | 5897648 |
| clinical challenge: diagnosis of coenurosis (taenia serialis) in a malagasy giant jumping rat (hypogeomys antimena). | | 2020 | 32549581 |