Indri indri

(Gmelin, 1788), Animalia, Indriidae, CR

Indri indri has a head-body length of 64–72 cm, a vestigial tail only 5 cm long, and a body weight that ranges from 6 kg to as much as 9.5 kg (Glander and Powzyk, 1998; Powzyk, 1997; E. E. Louis Jr., pers. obs.). The high end of the weight range makes it the largest of the living lemurs, but a big diademed sifaka (Propithecus diadema) approaches it in size. It is a typical vertical clinger and leaper, with long hind limbs compared to its trunk and forelimbs, and a preference for postures in which the trunk is held vertically. Coat color varies from predominantly black, contrasting with a white pygal patch and a broad, paler facial ring, to variegated black-and-white, the white areas corresponding to the occipital cap, a collar extending up to and beyond the ears, and the outer surfaces of the legs and lower arms (Groves, 2001). The ears are black, modestly tufted, and highly visible. \([\dots]\) https://lemursofmadagascar.com

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Current distribution

N. of observation used in the models

  N = 173

  Species distribution area

  SDA = 63 504 km\(^2\)

 

  Model performance

	ROC	OA	TSS
Value	0.99	0.89	0.83

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Climatic niche

Climatic and altitudinal range

 

	temp	prec	tseas	pseas	cwd	foret	alt
Mean	208	1992	2448	70	52	55	679
2.5%	169	1215	2044	42	3	0	15
97.5%	240	3012	2738	96	193	100	1532

Variable importance

	GLM	GAM	RF	MaxE	ANN	mrank	rank
temp	0.01	0.22	0.19	0.00	0.11	5.40	6
prec	0.28	0.31	0.17	0.53	0.33	3.20	3
tseas	0.19	0.29	0.29	0.34	0.08	3.80	4
pseas	0.09	0.20	0.23	0.14	0.22	4.80	5
cwd	0.60	0.83	0.29	0.18	1.00	1.80	1
foret	0.35	0.29	0.59	0.75	0.38	2.00	2

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Vulnerability to climate change

Full dispersal

  RCP : 85, Year : 2080

 

Zero dispersal

  RCP : 85, Year : 2080

 

Scenarios

	RCP	Year	Disp	Area	Change
1	45	2080	full	71 664	13
2	45	2080	zero	59 871	-6
3	85	2080	full	50 710	-20
4	85	2080	zero	43 160	-32

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