| reciprocal chromosome painting between human and prosimians (eulemur macaco macaco and e. fulvus mayottensis). | we used fluorescence in situ hybridisation to delineate the homology between the human karyotype and those of two lemur species (eulemur macaco macaco and e. fulvus mayottensis). human and lemur chromosome-specific probes were established by bivariate fluorescence-activated flow sorting (facs) and subsequent degenerate oligonucleotide-primed pcr (dop-pcr). reciprocal painting of human probes to lemur chromosomes and vice versa allowed a detailed analysis of the interchromosomal rearrangements th ... | 1997 | 9465900 |
| biomedical evaluation of black lemurs (eulemur macaco macaco) in lokobe reserve, madagascar. | complete medical evaluations were performed on 25 wild black lemurs (eulemur macaco macaco) in lokobe reserve, northwestern madagascar. each animal received a complete physical examination. weight, body temperature, heart rate, and respiratory rate were recorded. blood samples were collected for complete blood cell count, differential white blood cell count, hemoparasite examination, serum biochemical profile, fat-soluble vitamin analysis, trace mineral analysis, and toxoplasma gondii and viral ... | 2007 | 17469278 |
| periarticular hyperostosis and renal disease in six black lemurs of two family groups. | proliferative periosteal disease was identified in 6 black lemurs (eulemur macaco macaco) of 2 family groups. bilaterally symmetric formation of periosteal new bone at the metaphyseal regions of major long bones was first detected at the stifle and tarsal areas and was detected later at the carpal areas. bony changes were accompanied by progressive renal disease. the syndrome progressed for 6 to 16 months before the lemurs were euthanatized because of debility. necropsy revealed changes confined ... | 1994 | 7852158 |
| severe cysticercus longicollis cysticercosis in a black lemur (eulemur macaco macaco). | | 1998 | 9786526 |
| effects of three food enrichment items on the behavior of black lemurs (eulemur macaco macaco) and ringtail lemurs (lemur catta) at the henson robinson zoo, springfield, illinois. | this study tested 3 food enrichment items mentioned in a laboratory primate newsletter with 6 adult eulemur macaco and 3 adult lemur catta to examine whether the items would affect the behavior of the lemurs. the results suggest that food enrichment item 3 (a wire box filled with whole grapes, apples, or both hidden in straw hung from a branch within the enclosure) caused a significant decrease in the incidence of resting and a significant increase in the incidences of playing and grooming, with ... | 2006 | 16956316 |
| fiber digestibility by black lemurs (eulemur macaco macaco). | black lemurs, eulemur macaco, are classified as generalist feeders, consuming a proportion of fruits and leaves that varies with seasonal availability. it is hypothesized that black lemurs are capable of using neutral detergent fiber (ndf) as a source of energy through fiber fermentation in the cecum and large intestine. in captivity, they are typically fed a diet of commercially available primate biscuits and readily available produce, both of which are limited in nde digestibility trials were ... | 2005 | 17323560 |
| reproductive cycles and contraception of black lemurs (eulemur macaco macaco) with depot medroxyprogesterone acetate during the breeding season. | contraception is a critical component of population management for lemurs, but concerns about potential deleterious effects of continuous, long-term treatment with synthetic progestins such as the widely used melengestrol acetate implant led us to evaluate seasonal contraception with injections of depot medroxyprogesterone acetate (depo-provera, upjohn pharmacia, kalamazoo, mi) to limit the duration of exposure. we compared two dosage regimens in female black lemurs using vaginal cytology as an ... | 2007 | 19360581 |
| evaluation of iron status in lemurs by analysis of serum iron and ferritin concentrations, total iron-binding capacity, and transferrin saturation. | to assess serum iron and ferritin concentrations, total iron-binding capacity, and transferrin saturation as indicators of iron metabolic status in 3 genera of lemurs and determine whether these variables are useful for screening for iron overload. | 2008 | 18279098 |
| the use of artificial neural networks to classify primate vocalizations: a pilot study on black lemurs. | the identification of the vocal repertoire of a species represents a crucial prerequisite for a correct interpretation of animal behavior. artificial neural networks (anns) have been widely used in behavioral sciences, and today are considered a valuable classification tool for reducing the level of subjectivity and allowing replicable results across different studies. however, to date, no studies have applied this tool to nonhuman primate vocalizations. here, we apply for the first time anns, t ... | 2010 | 20034021 |
| localization of a new highly repeated dna sequence of lemur cafta (lemuridae, strepsirhini). | we have isolated and cloned an 800-bp highly repeated dna (hrdna) sequence from lemur catta (lca) and described its localization on lca chromosomes. lemur catta hrdna sequences were localized by performing fish experiments on standard and elongated metaphasic chromosomes using an lca hrdna probe (lcasat). a complex hybridization pattern was detected. a strong pericentromeric hybridization signal was observed on most lca chromosomes. chromosomes 7 and 13 were lit in pericentromeric regions, as we ... | 2002 | 12416631 |
| blue eyes in lemurs and humans: same phenotype, different genetic mechanism. | almost all mammals have brown or darkly-pigmented eyes (irises), but among primates, there are some prominent blue-eyed exceptions. the blue eyes of some humans and lemurs are a striking example of convergent evolution of a rare phenotype on distant branches of the primate tree. recent work on humans indicates that blue eye color is associated with, and likely caused by, a single nucleotide polymorphism (rs12913832) in an intron of the gene herc2, which likely regulates expression of the neighbo ... | 2009 | 19278018 |
| demography, range use, and behavior in black lemurs (eulemur macaco macaco) at ampasikely, northwest madagascar. | we studied a black lemur population over a 2-year period (1992-1993) and 8 years later (2000) in a 50-ha secondary forest in northwest madagascar. all of the animals were marked to investigate population dynamics and seasonal variation in ranging and behavior, and new data on black lemurs were obtained. our data on demographic characteristics were expanded to include other forest sites and contrasted with those collected in other eulemur macaco macaco field studies, in relation to human activity ... | 2005 | 16287130 |
| defining the ancestral karyotype of all primates by multidirectional chromosome painting between tree shrews, lemurs and humans. | we used multidirectional chromosome painting with probes derived by bivariate fluorescence-activated flow sorting of chromosomes from human, black lemur (eulemur macaco macaco) and tree shrew (tupaia belangeri, order scandentia) to better define the karyological relationship of tree shrews and primates. an assumed close relationship between tree shrews and primates also assists in the reconstruction of the ancestral primate karyotype taking the tree shrew as an "outgroup" species. the results in ... | 1999 | 10591999 |