Cathemeral
Cathemeral
Cathemeral, pronounced as /kəˈθɛmərəl/, is a term used in the field of Ethology to describe the activity pattern of an organism that has sporadic and random intervals of activity during the day or night. The term is derived from the Greek words "kata", meaning throughout, and "hemera", meaning day.
Etymology
The term "Cathemeral" was first coined by the primatologist Alison Jolly in 1986 to describe the activity patterns of some species of Lemurs in Madagascar. The word is derived from the Greek "kata", meaning throughout, and "hemera", meaning day. This is in contrast to Diurnal and Nocturnal activity patterns, which occur during the day and night respectively.
Related Terms
- Diurnal: Refers to organisms that are active during the day and rest at night.
- Nocturnal: Refers to organisms that are active during the night and rest during the day.
- Crepuscular: Refers to organisms that are active during twilight, i.e., dawn and dusk.
- Matutinal: Refers to organisms that are active during the early morning.
- Vespertine: Refers to organisms that are active during the evening.
See Also
External links
- Medical encyclopedia article on Cathemeral
- Wikipedia's article - Cathemeral
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