Results - Use of sectors
Enrichment effect on lemurs’ use of sectors
Ring-tailed lemurs:
No enrichment: They spent most of the time in open area A and sector C, where their house is.
Food enrichment: They increased use of the enriched sectors I and J, and house sector C.
Structural enrichment: They increased use of the open area B, and house sector C.
Red ruffed lemurs:
No enrichment: They spent most of the time in sector H, where their house is, and sometimes ventured out to treed area D.
Food enrichment: They increased use of enriched sector J.
Structural enrichment: They increased use of enriched sector F and sectors further away from their house.
** p < 0.01 (χ2 test)
Visitor effect on lemurs’ use of sectors
Ring-tailed lemurs:
The ring-tailed lemurs used open area A and their house sector H more when visitors were present.
They also used open area B, the red ruffed house H, and the enriched sectors I and J less when visitors were present.
However, the results were not statistically significant.
Red ruffed lemurs:
The red ruffed lemurs used their house sector H more when visitors were present.
They also used enriched sector J, treed area D and those sectors further away from their house less when visitors were present.
* p < 0.05 (χ2 test)
Weather effect on lemurs’ use of sectors
Ring-tailed lemurs:
They used open areas A and B the most when it was sunny.
They used their house sector C and treed areas D and E the most when it was rainy.
They used the red ruffed house sector H the most when it was cloudy.
Red ruffed lemurs:
They used their house sector H the least and the ring-tailed area sectors C and B the most when it was rainy.
The used enriched sector J the least when it was cloudy.
** p < 0.01 (χ2 test)
Temperature effect on lemurs’ use of sectors
Ring-tailed lemurs:
They used open area B and treed areas D and E the most when it was cold.
They used their house sector C the most and the enriched sectors I and J the least when it was too warm.
They used open area A and the red ruffed house sector H the most when it was mild.
Red ruffed lemurs:
They used treed area D and the ring-tailed area sectors C and B the most when it was cold.
They used their house sector H and enriched sector J the most when it was warmer.
* p < 0.05 (χ2 test)
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Director of undergraduate studies Biology
Last updated:
05/28/21