palaeoecology vs paleoecology

palaeoecology and paleoecology both are nouns.

Word	Noun	Adjective	Verb	Adverb
palaeoecology	Yes	No	No	No
paleoecology	Yes	No	No	No

As nouns, palaeoecology and paleoecology are synonyms defined as:

palaeoecology and paleoecology: the branch of ecology that studies ancient ecology

palaeoecology (noun)	paleoecology (noun)
the branch of ecology that studies ancient ecology	the branch of ecology that studies ancient ecology