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PRRP Songbird

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Title: Slide 1 Author: meruser Last modified by: qlabs Created Date: 11/22/2003 11:19:11 PM Document presentation format: On-screen Show Company: Utah State University – PowerPoint PPT presentation

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Title: PRRP Songbird


1
PRRP Songbird Monitoring Proposal
Travis Crane, Chandler Mundy, Travis Mote, and
Morgan Mendenhall
2
Objective
Develop a monitoring plan to be used with habitat
management in order to double the number of bird
species on the ten-mile Provo River restoration
project.
3
Provo River Restoration Project
Dike removal
River
Meanders
Flooding
Water Speed
Replanting
Upper canopy veg.
Low veg.
Flooded areas
4
The Habitat Types
  • Flooded areas

5
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6
The Habitat Types
  • Flooded areas
  • Low vegetation

7
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8
The Habitat Types
  • Flooded areas
  • Low vegetation
  • Upper canopy

9
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10
The Habitat Types
  • Flooded areas
  • Low vegetation
  • Upper canopy

11
Provo River Restoration Project
Dike removal
River
Meanders
Flooding
Water Speed
Replanting
Upper canopy veg.
Low veg.
Flooded areas
Nesting Habitat
Nesting Habitat
Nesting Habitat
Cover
Cover
Cover
Diet
Diet
Diet
12
Provo River Restoration Project
Dike removal
River
Meanders
Flooding
Water Speed
Replanting
Upper canopy veg.
Low veg.
Flooded areas
Nesting Habitat
Nesting Habitat
Nesting Habitat
Cover
Cover
Cover
Diet
Diet
Diet
warbling vireo
Wilsons warbler
yellow-headed black bird
black-headed grosbeak
Predators
13
Characteristics of the indicator species
1. Species must be relatively easy and
inexpensive to monitor. 2. Indicators should
be sensitive to the environment and will
fluctuate in the same manner as their guild. 3.
Species have direct relationship to target
population. 4. Most importantly, indicators
should meet managements objectives of being
adequate predictors of the target population.
14
Model of Indicator Species
A
Diet
D
B
C
Habitat
15
Warbling Vireo Vireo gilvus
16
Yellow-headed Blackbird Xanthocephalus
xanthocephalus
17
Black-headed Grosbeak Pheucticus melanocephalus
18
Wilson's Warbler Wilsonia pusilla
19
METHODS
Transect Surveys
yellow-headed blackbird
Point Counts
warbling vireo, Wilsons warbler, and
black-headed grosbeak
20
Transect Surveys
Transect Direction
100 meters
21
Point Counts
22
Analytical Methods
Relative Abundance
Presence/Absence
Richness/Diversity
23
Statistical Software
Computer programs will be heavily used to
calculate and interpret data using statistical
tools.
  • SAS
  • STATA

24
Chi-Square Test (?2)
?2observed-expected expected
25
Paired T-test
  • Compare 2 or more years
  • Sampling units permanent
  • Measurement Data
  • Data grouped in transects or clusters

26
Paired T-test
  • Is there a statistically significant result?
  • What is the likelihood that no true change
    occurred and that any observed difference is the
    result of random sampling error?
  • Does the observed change have any biological
    significance?

27
Does the observed change have any biological
significance?
The power value uses the sample size, sample
standard deviation, threshold significance level
(a) and an effect size considered biologically
important. The minimum detectable change is
another calculation to judge biological
significance. It uses the power value to
calculate what minimum level of change could be
detected.
28
Species diversity and richness
Species richness is analyzed as a total number of
species detected. Evenness, or the relative
abundance of a species, is incorporated with
species richness into a diversity index. Many
indices exist we will use the Shannon-Weaver
index
29
Sampling Design
Detect a minimum change of 20 with a 95
confidence level
  • Pilot Study
  • Ensure capture of population variation
  • Ensure narrow confidence interval
  • ? Low bias, no 0s
  • ? Increased precision
  • Determine number of samples and plot size

30
The estimated sample sizes
n(st/E)2
  acres ave. bird/yr s t E n
Flooded 139 35.2 5 1.96 1.76 31
Upper canopy 318 43.6 5 1.96 2.18 20
Low vegetation 123 22.2 4 1.96 1.11 50
31
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32
Expected Products
  • Population estimates for indicator species
  • Species diversity for all three habitat types
  • Map of all study sites
  • Guidelines of monitoring methods
  • Management recommendations
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