When the anomeric hydroxyl of a D-hexose is on the same side of the ring as C-6, the structure is β a by definition; when it is on the opposite side from C-6, the structure is α.

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#XL - T Zoology

Proportional similarity values of less than 0.70 have been taken to indicate possible coexistence

While those greater than 0.70 indicate competitive exclusion.

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Character displacement

Morphological differences in two closely related species present in same geographical area while similar morphology when present at different geographical are

1. Niche diversification

2. Co-existence of many species

3. Evolutionary program

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#Id: 8016

#XL - T Zoology

TLS Online TPP Program

#Id: 8017

#XL - T Zoology

Ecological compression

Short term evolutionary response

More number of species coexist together

Non inheritable trait

Not change habitat but reduce the food range

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#Id: 8018

#XL - T Zoology

                        Ecological compression

TLS Online TPP Program

#Id: 8019

#XL - T Zoology

ECOLOGICAL RELEASE

Ecological release is the expansion of range, habitat, and/or  resource usage by an organism.