These results support paleoecological
work (Davis 1984) that suggests that disequilibrium between climate and species range may persist over relatively long temporal extents.
Congruent morphological and molecular differentiation, coupled with paleoecological
evidence of an ancient vicariance, support the view (Howard et al.
In an analysis of a Lake Valencia core, Leyden (1985) found no evidence supporting the region as a Pleistocene refugium, and concluded that, "Pleistocene refugia in the Neotropics have yet to be documented by paleoecological
studies on the impact of the Younger Dryas upon the vegetation can therefore provide important insights into ecological questions such as the nature of vegetation response to extremely rapid and severe climate cooling and warming.
For the Petexbatun region, compared with the central Peten, our initial paleoecological
evidence indicates more forest survival through the period of highest population density, the Late Classic of the ninth century A.
Benthic foraminiferal assemblages have been currently used as proxies for determining paleoecological
features, which may have controlled their development due to the close relation between them.
Palynological data on a Holocene peat deposit in tropical Brazil: preliminary paleoclimatic and paleoecological
1982a, b, 1990; Lee, 1996), and paleoecological
studies reveal that these environments return to conditions that existed prior to ash deposition events within 10 to 300 years (Barsdate and Dugdale, 1972; Abella, 1988; Lotter et al.
Rull V, Vegas-Vilarrubia T (1999) Surface palynology of a small coastal basin from Venezuela and potential paleoecological
The taxonomic composition indicates the paleoecological
conditions of the tragulids compatible with earlier reconstructions of the riverine environment and a covering of woods, bushes and shrubs (Barry et al.
Non -- marine ostracoda have shown to be useful in paleoecological
and ecological interpretations elsewhere in South America (e.
Assessment of the effects of predation over geological timescales, essential for paleoecological
and evolutionary studies, has proved difficult, not least because most traces of predation are rarely preserved; most types of predation destroy the prey or leave no traces on the preservable hard parts of the victim.