| chromosomal evolution in malagasy lemurs. iii. chromosome banding studies in the genus hapalemur and the species lemur catta. | the karyotypes of five malagasy lemurs are described and compared after the successive use of various banding methods. phylogenic relationships appear to exist between the respective ancestors of lemur catta, hapalemur simus, h. griseus occidentalis, h. griseus ssp, and h. griseus griseus. their karyotypes can be derived from that of l. fulvus fulvus by chromosomal rearrangements affecting mainly chromosomes 1 and x. intense staining of juxtacentromeric heterochromatin was detected among the dif ... | 1978 | 97055 |
| ecology and conservation of the crowned lemur, lemur coronatus, at ankarana, n. madagascar. with notes on sanford's lemur, other sympatrics and subfossil lemurs. | forests of ankarana limestone massif in northern madagascar support one of the largest and least disturbed populations of crowned lemurs, lemur coronatus. this paper reports a preliminary study of the ecology of this species in the ankarana special reserve conducted at the end of the dry season in 1986, with additional information collected a year later. crowned lemurs occur in very high densities in the semi-deciduous canopy forest and this probably represents a dry season refuge for the specie ... | 1989 | 2807091 |
| revision of hapalemur (prohapalemur) gallieni (standing 1905). | cranial and mandibular remains of the subfossil lemur hapalemur (prohapalemur) gallieni (standing 1905) from ampasambazimba in central madagascar are reexamined and are shown here to belong to the rare but perhaps still extant species hapalemur simus. past descriptive errors and too limited comparisons have hampered previous taxonomic assessments of the three mandibular rami, two partial maxillae, and one partial cranium ascribed to h. (prohapalemur) gallieni. these and other subfossil h. simus ... | 1985 | 4093081 |
| subfossil indri indri from the ankarana massif of northern madagascar. | subfossil specimens of indri indri have been recovered recently from the ankarana massif cave system in the far north of madagascar. taken together with material from the central highland site of ampasambazimba, the range of this species appears to have once included much of the northern half of the island and to have extended north and west beyond the eastern rainforest (not unlike hapalemur simus). it is probable that forest corridors connected the subfossil localities to the current range at ... | 1995 | 7485433 |
| phylogeny of the lemuridae revisited: evidence from communication signals. | phylogenetic relationships among the extant lemurid prosimians were assessed cladistically using stereotyped vocal, olfactory, and visual communication characters. among our results are 3 findings of particular importance. first, our data are consistent with those from several recent studies of highly repeated dna fragments in supporting a close phyletic affinity between lemur catta and the genus hapalemur. moreover, our results indicate that l. catta is nested within the hapalemur clade as the ... | 1994 | 7813970 |
| feeding behaviour and activity patterns of two malagasy bamboo lemurs, hapalemur simus and hapalemur griseus, in captivity. | | 1994 | 7813971 |
| chromosome painting: a method for testing chromosomal changes in lemur evolution. | chromosome painting using commercially available human chromosome-specific dna libraries was performed to elucidate chromosomal rearrangements in lemur evolution. human-specific probes for chromosomes 3, 14, 15, and 21 were used to paint chromosomes of six species: eulemur fulvus mayottensis, varecia variegata, lemur catta, hapalemur simus, h. griseus griseus, and h. aureus. all human chromosome libraries hybridized specifically to chromosome segments of varying length or to whole arms of lemur ... | 1997 | 9371411 |
| phylogenetic relationships between hapalemur species and subspecies based on mitochondrial dna sequences. | phylogenetic relationships of the genus hapalemur remains controversial, particularly within the hapalemur griseus species group. in order to obtain more information on the taxonomic status within this genus, and particularly in the cytogenetic distinct subspecies group of hapalemur griseus, 357 bp sequence of cytochrome b and 438 bp of 12s mitochondrial dnas were analyzed on a sample of animals captured in areas extending from the north to the south-east of madagascar. this sample covers all cy ... | 2002 | 11914128 |
| genetic comparison of two populations of hapalemur simus inferred from d-loop mitochondrial dna sequences. | | 2004 | 14716149 |
| a study of locomotor behavior in a captive colony of red-bellied lemurs (eulemur rubriventer). | the considerable diversity of locomotor behavior within the suborder prosimii largely is due to differences in locomotion between families. within families, locomotion is relatively homogeneous, although some species, such as otolemur crassicaudatus among the galagids and hapalemur simus and lepilemur spp. among the lemurids, differ from other species in their family. this paper describes the locomotion of a captive colony of red-bellied lemurs, eulemur rubriventer (following the classification ... | 1990 | 31963961 |
| consumption of cyanogenic bamboo by a newly discovered species of bamboo lemur. | three species of bamboo-eating lemurs were found to be sympatric in the southeastern rain forests of madagascar. sympatric species generally differ in habitat utilization or diet, but these three closely related bamboo lemurs lived in the same habitat and all ate bamboo. behavioral observation revealed that they did select different parts of the bamboo, and chemical analyses confirmed that there was a difference in the secondary compound content present in those selections. the growing tips of c ... | 1989 | 31964012 |