uses data from fossils
and subfossils to reconstruct the ecosystems
of the past. It includes the study of fossil
organisms and their bromalites
and other trace fossils
in terms of their life cycle
, their living interactions, their natural environment
, their manner of death
and burial. Paleoecology's aim is therefore to build the most detailed model possible of the life environment
of those living organisms
found today as fossils; such reconstruction work involves complex interactions among environmental factors (temperature
supplies, degree of solar illumination
, etc.). Of course, much of this complex data has been distorted or destroyed by the post-mortem fossilization processes, adding another layer of complexity.
The environmental complexity factor is normally tackled through statistical
analysis of the available numerical data (quantitative paleontology
), while the study of post-mortem processes is known as the field of taphonomy
Much paleoecological research focuses on the last two million years (the Quaternary period) because older environments are less well-represented in the fossil timeline of evolution. Indeed, many studies concentrate on the Holocene epoch (the last 11,000 years), or the last glacial stage of the Pleistocene epoch (the Wisconsin/Weichsel/Devensian/Würm glaciation of the ice age, from 50,000 to 10,000 years ago). Such studies are useful for understanding the dynamics of ecosystem change and for reconstructing pre-industrialization ecosystems. Many public policy decision-makers have pointed to the importance of using paleoecological studies as a basis for choices made in conservation ecology.
- Fox, D. Dig Deeper Conservation in Practice 7(3):15-21.
- Taylor, P.D. and Wilson, M.A., 2003. Palaeoecology and evolution of marine hard substrate communities. Earth-Science Reviews 62: 1-103.