The 6-membered cyclic form of sugars is usually called the “pyranose” form in reference to the cyclic ether pyran.

TLS Online TPP Program

#Id: 5372

#XL - T Zoology

Baited snap traps, Population density can thus be estimated as the number of animals caught per trap or per unit area where a given number of traps are set.

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#Id: 5373

#XL - T Zoology

The mark-recapture technique is that after the tagged animals are released, they mix freely with unmarked individuals. The population is resampled and the numbers of marked and unmarked individuals are recorded. 

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#Id: 5374

#XL - T Zoology

TLS Online TPP Program

#Id: 5375

#XL - T Zoology

Mark-recapture technique can have drawbacks;

1. Some animals that have been marked may learn to avoid the traps. 
2. Recapture rates will then be low, resulting in an overestimate of population size.

TLS Online TPP Program

#Id: 5376

#XL - T Zoology

Some animals can become trap-happy, particularly if the traps are baited with food. This would result in an underestimate of the population size.

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#Id: 5378

#XL - T Zoology

Clumped: The most common dispersion pattern is clumped, because resources tend to be clustered in nature.