Wildlife Population Monitoring_2

Because it helps determine the abundance, trends, and distribution of wildlife species over time

Because it is required by law in most countries

Because it only focuses on endangered species

Because it is the easiest method to study animals

Scientific rigor

Consistency over time

Minimizing bias

All of the above

Occurs when not all individuals present in the study area are detected.

Differences in skill, experience, or fatigue among observers influence detection.

Occurs when surveys are conducted at non-representative times.

Variation in habitat structure affects detectability.

Random or systematic sampling

Standardized survey protocols

Repeated surveys

All of the above

Ensures reliability of population trends

Allows detection of small population changes over time

Increases statistical power

Reduces animal movement

Animal movement

Sample size

Standardized effort

Management decisions

Absolute density measures the number of organisms per unit area, while relative density compares the density of one population to another.

Absolute density is always higher than relative density.

Relative density measures the number of organisms per unit area, while absolute density compares two populations.

Absolute density is used only for endangered species.

Mark-and-recapture

Distance sampling

Patch occupancy survey

All of the above

Large number of technicians

A lot of financial resources

Cooperation of stakeholders

Small sample size

Animals are always found in groups

Animals are scattered randomly across the study area

All animals are counted directly

Only nocturnal animals are considered

Total number of animals flushed

Total distance walked

Twice the average distance from the observer to the animal when flushed

Area of the habitat censused

No births or deaths during the study period

No marked animals are released

Population size changes due to immigration

Animals are only counted once

Abundance, trend, distribution, occupancy, breeding success

Migration, camouflage, predation, competition

Photosynthesis, respiration, transpiration, decomposition

Symbiosis, parasitism, mutualism, commensalism