Welcome back! Read the board and review for quiz on laws!

Endangered Species Laws

Lacey Act

Endangered Species Act

Convention on International Trade in Endangered Species

Be ready to compare/contrast

I will answer only two questions from the class.

OK! Please put your natural

selection reading outline on your

desk for a stamp during the quiz!

Healthy?Threatened? Endangered?

Counting has legal consequences!

Please get out your wildlife management notes.

Random Sampling activity –(the beans) Share your * answers!

#3 – Asymptotic point = more PRECISION

#7 – How could we have improved accuracy?

Does any of this apply to our lab work comparing the managed and unmanaged prairie areas?

Why count population size accurately? Census vs. Random

sampling. Standardized procedure

reduces bias Improving accuracy:

More samples

Strict standards for asymptotic point

Tailor data collection to organism’s life history

ROBUST DATA!

Accuracy is important – legal protection can limit individual land use/decisions

Quadrant Sampling in Wolf Prairie – design flaws?

Transect sampling

Tag and Recapture is a TYPE of random sampling

-population size

-identify critical habitat

-identify migratory pathways

-monitor population health

Bird Banding

Contact info, ID number

Westside at Guadalupe State Park – Spring 2014 Bird Banding

Permanent tracking devices

PIT tagging

Tag and Recapture

OK to recapture same individual.

Formula accounts for this.

Why is it important for wildlife managers to determine population size accurately?

Assessing population size

Census

Counts each individual organism

Large organisms

Stationary

Areal photos

Random Sampling

Vegetation Animals

Quadrant Tag and R

Transect ratio

H’