research is critical to understand the increasing changes in our atmosphere and well as whether this change is occurring rapidly or gradually.
record the Sierra Nevada suggests very different climate and vegetation changes throughout the region.
Corgan's first contributions to paleontology occurred while a geologist for Sinclair Oil in Alaska, where he described a new species of brittlestar from the Cretaceous of the Yukon, followed by a paleoecological
study of Devonian fauna in the region, where he narrowed his interest to mollusks.
This noticeable divergence between populations or subspecies is likely a result of a combination of the natural fragmented distribution of cloud forests along with paleoecological
and colonization events (Peterson et al.
Tectonic, depositional, and paleoecological
history of early Mesozoic rift basins, eastern North America.
paleoclimate and paleoecological
data (for example, tree rings, sediment
differences between Tertiary and Quaternary Crassostrea oysters, as revealed by stable isotope sclerochronology.
Because we currently lack an explicit environmental framework for the fauna from Cathedral Cave, we are unable to make specific paleoecological
or evolutionary inferences based on this new record, except to say that given the ecological range of the species and the evolutionary history of testudinids (Morafka and Berry, 2002), the presence of G.
They report key findings on such areas as a paleoecological
perspective on aquatic ecosystem variability and climate change, climate change and the hydrology and morphology of freshwater ecosystems, the interaction of climate change and eurtrophication, the distribution of persistent organic pollutants and mercury in freshwater ecosystems under changing climate conditions, modeling catchment-scale responses to climate change, and bridges from science to policy as tools for better decision making.
According to the researchers, "Shifts in the paleoecological
record, previously interpreted as evidence of the Maya denuding the forest, can be reinterpreted as evidence of forest management in the form of the Maya Forest garden.
Plant macrofossils from Kirchner Marsh, Minnesota--a paleoecological