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Definitions The Principle of Cognitive Classification The Principle of Crossdating The Prinicple of Trees as Dynamic Entities The Principle of Plurality and Parsimony The Principle of Aggregate Tree Growth The Principle of Limiting Factors The Principle of Replication across Spatiotemporal Scales The Principle of Site Selection (dendron = tree, chronos = time, logos = word = the science of): The science that uses tree rings dated to their exact year of formation to analyze temporal and spatial patterns of processes in the physical and cultural sciences.

The science that uses tree rings to date when timber was felled, transported, processed, or used for construction or wooden artifacts.

In addition to allowing more certain proof of a tree's age, it allows dendrochronologists to link together a part of the life of one tree to part of the life of another tree and make an effective "chain" of tree lives.

Young Earth creationists often doubt other forms of dating, such as radiometric dating, that invalidate their worldview of a 6,000-year-old Earth, often because those dating methods are harder to understand, more prone to potential error, and science-y.

Insect infestation clearly manifests itself, as does disease or fire damage. Day length, amount of sunshine, water potential, nutrients, age of tree, temperature, rainfall, height above ground, and proximity to a branch all impact tree growth and tree ring production.

By assuming the outer ring records the most recent year and that each ring signals one year, a researcher can determine the “date” of a particular ring simply by counting rings.

A ring typically consists of a light-colored growth portion and a dark-colored portion produced in a stabilization season.

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As the summer winds down and the transition to the cooler autumn occurs, the tree’s growth rate slows.

Archaeologists sometimes study the ring patterns in beams or other pieces of wood from archaeological sites to help date the sites; they may also study the ring patterns to infer the local climatic history.

Tree-ring analysis requires observation and pattern recognition.

Example: analyzing ring widths of trees to determine how much rainfall fell per year long before weather records were kept.

The science that uses tree rings to study factors that affect the earth's ecosystems.