ANT154A 03BW - strepsirrhine haplorhine Anthropology 154A...

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1 Anthropology 154A Lecture 3 The Suborder Strepsirrhini Moist, naked rhinarium strepsirrhine No rhinarium` haplorhine Strepsirrhini No post orbital plate Long snout Strepsirrhini Haplorhini Primitive Strepsirrhini Dental comb Shared-Derived Indriidae and Daubentoniidae are exceptions Unfused mandibular symphysis Shared-Primitive Grooming claw on the 2nd pedal digit A shared derived character of the Suborder Strepsirrhini
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2 Grooming claw Gap between medial incisors Dental comb and Unfused symphysis Strepsirrhini Tapetum lucidum (reflecting tapetum) Lemuriformes Madagascar Lorisiformes Asia, Africa Infraorder Lemuriformes, Superfamily Lemuroidea Families: Lemuridae (Lemurs) Cheirogaleidae (Dwarf lemurs) Lepilemuridae (aka Megaladapidae; Sportive lemurs) Indriidae (Indri, Sifaka) Daubentoniidae (Aye-aye) Madagascar
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3 Lemuriformes, Lemuroidea, Lemuridae: 5 Genera Lemur Eulemur Prolemur Hapalemur Varecia All diurnal or cathemeral Superfamily Lemuroidea Family Lemuridae Genus Lemur (1 species) Species catta (Ring-tailed lemur) Southern Madagascar 2.2 kg Multi-male, multi-female groups: 3-27 Females in groups related Home range: 6-35 ha Omnivorous Diurnal (but GPS collars tell a different story) Superfamily Lemuroidea Family Lemuridae Genus Lemur (1 species) Species catta (ring-tailed lemur) Comfortable both on the ground and trees Females dominant over males Groups territorial, with females actively defending boundaries Males disperse from natal groups, females remain Females organized into linear dominance hierarchies Sometimes females engage in “targeted aggression” and force low-ranking females to leave the group Superfamily Lemuroidea Family Lemuridae Genus Eulemur (7 species) Species fulvus (brown lemur) Widespread 1.8-2.6 kg Multi-male, multi-female groups that may split up and coalesce (fission- fusion): 6-12; E. rubriventer lives in single-male, single- female pairs Home range: 1-100 ha Omnivorous Superfamily Lemuroidea Family Lemuridae Genus Eulemur (7 species) Sexually dichromatic All Eulemur species cathemeral: active both during the day and night, either shifting seasonally or during a given 24-hr period Both males and females can disperse from their natal groups Personal space seems not well-developed (at least in E. fulvus ) Superfamily Lemuroidea Family Lemuridae Genus Hapalemur (4 species) Species griseus (Gray bamboo lemur) Widespread .7-1.2 kg Flexible groupings (male/ female pairs, multi-male, multi-female groups): 1-9 Home range: 6-26 ha
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4 Superfamily Lemuroidea Family Lemuridae Genus Hapalemur (5 species) Bamboo specialists; able to withstand heavy doses of cyanide found in bamboo; also feeds on grasses Both sexes disperse from their natal groups Offspring parked and retrieved Superfamily Lemuroidea Family Lemuridae Genus Prolemur (1 species) Species simus (Greater bamboo lemur) Southeastern Madagascar 2.4 kg Multi-male, multi-female groups: 4-12 Home range: 62 ha (1 group) Bamboo specialist
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This note was uploaded on 11/16/2011 for the course ANT ANT 154A taught by Professor Lynne during the Spring '11 term at UC Davis.

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ANT154A 03BW - strepsirrhine haplorhine Anthropology 154A...

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