week 09 - final sample Qs Flashcards
the difference between “true”
replication and pseudo-replication
For true replication, one must have more than one replicate of each variable / factor.
To make inferences of young & old DF forest, one must visit many young & many mature DF forests, w/ many sample plots in each forest. (Experimental Units / Measurement Units)
how close can you read azimuth scale on Silva or Suunto compass?
1 or 2 degrees (smallest divisions of 2 degrees)
magnetic declination is…
the angle between the local magnetic field and true north. The declination is positive when magnetic north is east of true north.
all CPUE indices must share this trait
bearing a consistent relationship to the true population abundance
T/F: soil line can be used for atmospheric correction
True.
what is bulk density (Db)
oven dry soil mass per field volume; can be used to estimate soil nutrients and compaction
normal = 1 g / cm3
also reported as: 1 Mg / m3 ||| 1000 kg / m3
what is basal area, why is it important?
BA = cross-sectional area of the tree at BH
BA = .005454 x D2
(D in “ to BA in ft2)
- stand basal area = sum of all BAs in a stand
- BA directly related to crown surface area
- BA + HT can indicate wood volume
- BA is one parameter used to assess a forest
why are aquatic macroinvertebrates useful for assessing stream health?
- short lifespans (< 1 yr, sometimes)
- sedentary
- existing indices (B-IBI)
- some are tolerant, other intolerant, of pollutants or degraded water quality
- play important role in stream nutrient cycling
CWD attributes recorded using line-intercept technique?
- diameter at point it crosses transect
- length of the piece
- species
- decay class
The 7 disciplines
- Survey, Navigation & Mapping
- Wildlife
- Social sciences
- Soils & Microclimate
- Stream Ecology / Hydrology
- Forestry (tree canopy / lower canopy)
- GIS & remote sensing
