Morphometrics of wild black-and-white ruffed lemurs [Varecia variegata; Kerr, 1792]

2008 ◽  
Vol 70 (10) ◽  
pp. 913-926 ◽  
Author(s):  
Andrea L. Baden ◽  
Rick A. Brenneman ◽  
Edward E. Louis
Keyword(s):  
Black And White ◽  
Varecia Variegata

scholarly journals Sex-Segregated Range Use by Black-and-White Ruffed Lemurs (Varecia variegata) in Ranomafana National Park, Madagascar

2020 ◽  
pp. 1-33
Author(s):  
Andrea L. Baden ◽  
Jelisa Oliveras ◽  
Brian D. Gerber
Keyword(s):  
Home Range ◽  
National Park ◽  
Social Groups ◽  
Day Length ◽  
Ranomafana National Park ◽  
Home Range Overlap ◽  
Range Use ◽  
Black And White ◽  
Varecia Variegata ◽  
Range Overlap

Ranging behavior is one important strategy by which nonhuman primates obtain access to resources critical to their biological maintenance and reproductive success. As most primates live in permanent social groups, their members must balance the benefits of group living with the costs of intragroup competition for resources. However, some taxa live in more spatiotemporally flexible social groups, whose members modify patterns of association and range use as a method to mitigate these costs. Here, we describe the range use of one such taxon, the black-and-white ruffed lemur (<i>Varecia variegata</i>), at an undisturbed primary rain forest site in Ranomafana National Park, Madagascar, and characterize sex differences in annual home range area, overlap, and daily distances traveled. Moreover, we characterize seasonal variability in range use and ask whether ranging behaviors can be explained by either climatic or reproductive seasonality. We found that females used significantly larger home ranges than males, though sexes shared equal and moderate levels of home range overlap. Overall, range use did not vary across seasons, although within sexes, male range use varied significantly with climate. Moreover, daily path length was best predicted by day length, female reproductive state, and sex, but was unrelated to climate variables. While the patterns of range use and spatial association presented here share some similarities with “bisexually bonded” community models described for chimpanzees, we argue that ruffed lemurs best conform to a “nuclear neighborhood” community model wherein nuclear (core) groups share the highest levels of home range overlap, and where these groups cluster spatially into adjacent “neighborhoods” within the larger, communally defended territory.

The Behavioral Repertoire of the Black-and-White Ruffed Lemur, Varecia variegata variegata (Primates: Lemuridae)

1988 ◽  
Vol 51 (1) ◽  
pp. 1-32 ◽  
Author(s):  
Michael E. Pereira ◽  
Martha L. Seeligson ◽  
Joseph M. Macedonia
Keyword(s):  
Behavioral Repertoire ◽  
Black And White ◽  
Varecia Variegata ◽  
Ruffed Lemur

Laterality in semi-free-ranging black and white ruffed lemurs (Varecia variegata variegata): head-tilt correlates with hand use during feeding

2009 ◽  
Vol 71 (12) ◽  
pp. 1032-1040 ◽  
Author(s):  
Eliza L. Nelson ◽  
Jaime M. O'Karma ◽  
Felicia S. Ruperti ◽  
Melinda A. Novak
Keyword(s):  
Head Tilt ◽  
Black And White ◽  
Varecia Variegata ◽  
Free Ranging

scholarly journals Decline of Propithecus diadema edwardsi and Varecia variegata variegata (Primates: Lemuridae) in south-east Madagascar

Oryx ◽  
2005 ◽  
Vol 40 (1) ◽  
pp. 108-111 ◽  
Author(s):  
Shawn M. Lehman ◽  
Jonah Ratsimbazafy ◽  
Andry Rajaonson ◽  
Sabine Day
Keyword(s):  
Forest Cover ◽  
Field Surveys ◽  
Black And White ◽  
Varecia Variegata ◽  
Conservation Authorities ◽  
Propithecus Diadema ◽  
Conservation Plans ◽  
Ruffed Lemur ◽  
Propithecus Diadema Edwardsi ◽  
Lemur Species

This paper describes the results of field surveys for two Endangered lemurs, Milne-Edward's sifaka Propithecus diadema edwardsi and the black and white ruffed lemur Varecia variegata variegata, in the unprotected Fandriana-Marolambo forest corridor in south-east Madagascar. Published range maps show P. d. edwardsi and V. v. variegata present in the corridor, although few surveys have been conducted in this area. A total of 292.9 km of surveys were conducted at eight sites in the corridor but P. d. edwardsi and V. v. variegata were each located at only one site. Absence of these species at other sites may be the combined result of altitudinal and anthropogenic effects. Conservation plans for P. d. edwardsi and V. v. variegata are complicated because gaps in forest cover prevent dispersal of conspecifics from nearby protected areas. Conservation authorities should be cautious in using range maps based on the presumed distribution of lemur species.

scholarly journals Evidence of social learning in black-and-white ruffed lemurs ( Varecia variegata )

2011 ◽  
Vol 7 (3) ◽  
pp. 376-379 ◽  
Author(s):  
T. S. Stoinski ◽  
L. A. Drayton ◽  
E. E. Price
Keyword(s):  
Social Learning ◽  
Field Studies ◽  
Response Patterns ◽  
Overall Response ◽  
Black And White ◽  
Varecia Variegata ◽  
Learning Capabilities ◽  
Foraging Task ◽  
Term Field

Although many studies have examined social learning capabilities in apes and monkeys, experiments involving prosimians remain largely absent. We investigated the potential for social learning in black-and-white ruffed lemurs using a two-action foraging task. Eight individuals were divided into two experimental groups and exposed to conspecifics using one of two techniques to access food. Subjects were then given access to the apparatus and their retrieval techniques were recorded and compared. All subjects made their first retrieval using the technique they observed being demonstrated, and there were significant differences between the two groups in their overall response patterns. These results suggest that prosimians are capable of social learning and that additional long-term field studies may reveal the presence of behavioural traditions similar to those found in other primates.

GASTRIC PNEUMATOSIS WITH ASSOCIATED EOSINOPHILIC GASTRITIS IN FOUR BLACK AND WHITE RUFFED LEMURS (VARECIA VARIEGATA VARIEGATA)

2013 ◽  
Vol 44 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Megan C. Niederwerder ◽  
Ilse H. Stalis ◽  
Gregory A. Campbell ◽  
Kay A. Backues
Keyword(s):  
Black And White ◽  
Eosinophilic Gastritis ◽  
Varecia Variegata
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