Shadow Effect

Shadow effect

The shadow effect is a phenomenon seen in genetic studies that use noninvasive genetic data collection methods. It occurs when there are not enough loci and/or loci that have low variance of alleles within the population. As a result, researchers can capture two separate individuals and mistakenly label them as the same individual. This can create a negative bias in the data and portray a population as smaller and less genetically diverse than it is. This is most commonly seen in collection methods that rely on environmental DNA (eDNA) which is collected directly from the environment. The accuracy of non-invasive collection data can be increased by increasing the amount of loci being examined during the study.

Shadow

A shadow is a dark area on a surface where light from a light source is blocked by an object. In contrast, shade occupies the three-dimensional volume behind an object with light in front of it. The cross-section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light.

shadow

Noun

1. A dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object.
2. Relative darkness, especially as caused by the interruption of light; gloom; obscurity.

Adjective

1. Unofficial, informal, unauthorized, but acting as though it were.
2. Having power or influence, but not widely known or recognized.

effect

Noun

1. The result or outcome of a cause.
2. Impression left on the mind; sensation produced.

Verb

1. To make or bring about; to implement.
2. Misspelling of affect.