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21 Cards in this Set

  • Front
  • Back
ML: Live where? Does madagascar have seasonality?

-High seasonality--> wet and dry seasons
ML: How many eco-regions does Madagascar have?

What are the two different types of eco regions?

What are the different eco-regions in each type?
-Five eco regions

-The two types are dry and wet

-3 dry eco-regions: deciduous forest, succulent woodland, spiny thicket

-2 wet eco-regions: sub-humid forest, humid forest
Adaptive radiation of Malagasy prosimians:

-How many genera?
- How many living species?
-How many sub-fossil genera? how big were they and how long ago did they go extinct?
-14 genera
-43 living species
-6 sub-fossil genera, giant lemurs about size of a gorilla, went extinct about 500 yrs ago(relatively recently)
-What is the latin name for dwarf lemurs?
-How many genera?
-What are the five genera?
-Where on madagascar are they found?
- Cheirogaleidae
-5 genera:microcebus,phaner, mirza, chirogaleus, allocebus
-found in each eco-region--> diff. species for each region
body size of the cheirogaleidae?
(2 things)
how much does microcebus weigh?
-smallest living primates
-body size 500 g
-Microcebus: 30 g
ML--> C:
Nocturnal or diurnal?
DNA or field work on ml/c? (difficulty level)
cryptic diversity--> nocturnal hard to find/observe
ML/C diet?(2 things)
low quality or high quality?
-Largely insectivores
-also frugivores
-high quality diet b/c need sugars and proteins to keep small body running
Adaptations for seasonality(3 things)
-Eating of insect secretions
ML/C:How long is hibernation? What physical adaptation do have for this?
(7 mo in Cheirogaleus)
•Tail full of fat to keep fed during hibernation
ML/C:What is torpor?
when does it happen?
what do they eat?
-reduced activity--> don't do as much
-happens mostly during dry season
-eat insect secretions
ML/C:traditional view of them?
why? (3 reasons)
-primitive --> do things that make them seem close to ancestral condition
-dispersed sociality,solitary foragers, sleep in nests
ML/C: Microcebus How many species?
8 species
ML/C:Microcebus social organization? (5 things)
-female philopatry
-male dispersal
-overlaping homeranges
-solitary foraging
-communal nesting
ML/C:Def. Matrilocal females
-females tend to stay in natal area
ML/C:def. overlaping homeranges?
individuals' homeranges overlap
ML/C:"groups" in microcebus
-individuals with overlapping homeranges who communally nest together are considered groups
ML/C:3 grouping patterns
-multimale, unifemale
-multimale, multifemale
-multifemale(bachelorette groups)
ML/C:grouping pattern: multimale, multifemale: (3 things)
2 reasons:
-provides opportunity for polyandry
-one female's homerange overlapped by several male homeranges
-communally nests with males
-reasons: 1) more males more protection from predators, 2) more individuals less likely predator get female
ML/C:Multi female: (3 things)
-bachelorette groups
-male solitary: individual males have homeranges that overlap the female groups homerange
-cooperative breeding: females help eachother rear offspring
ML/C:Socioecological model: FEMALE PERSPECTIVE:
-what about resources?
-predation rate? (low or high, percentage,what does this put pressure for?)
-unknown recource characteristics
-high predation: (50% predation rate)--> high pressure for communal nesting