How is accessing memory in dvds different from video tapes
Show Andelt (1985)
Coyote
Ca
Not given
48
a + s
< 100 m apart
Average distance apart and travelled together; simple ratio
Table: assoc, coeff. by age/ sex class: line graph: by age/sex class & season (simple ratio)
Compare six reproductive stages
Arcese et al. (1995)
Oribi
Un
Not given
236
a + s
In the same group (= within 100 m of another group member)
No. of dyadic associations
Line graph: % dyads intact over 5 years
Compare dyads intact in each study year
Arnold et al. (1981)
Dorset Horn sheep
Un
13 (captive)
13
a + s
In the same grid square (400 m2 when grazing, 50 m2 when camped)
Simple ratio
Single linkage cluster analysis
Compare age classes of individuals
Arnold et al. (1981)
Southdown sheep
Un
35 (captive)
35
a + s
In the same grid square (400 m2 when grazing, 50 m2 when camped)
Simple ratio
Principal coordinates analysis
Compare age classes of individuals
Balance (1990)
Bottlenose dolphin
Ce
~ 155
155
m/c prs. excl.
In the same group (= sighted together repeatedly); surfacing together
Twice-weight
Average linkage cluster analysis
Discuss fluidity of surfacing associations
Behrends et al. (1986)
Merriam’s kangaroo
Ro
Not given
60
s
Home ranges overlap
% range overlap
Table: mean assoc, coeff. by sex class
Compare three study periods
Bell and Ford (1986)
Striated thornbill
Bi
≥ 44
44
s
Seen together
% of joint occurrences
Cluster analysis
Discuss variation of group size with season
Bigg et al., (1990)
Killer whale
Ce
261 (in 1987)
All
a + s
Photographed together
Cole’s index
Average single-link cluster analysis
Compare mother– offspring bonds in 4-year groups
Braeger et al. (1994)
Bottlenose dolphin
Ce
Not given
1000
No
Members of the same group (= observed in apparent association)
Half-weight
Histogram of classes of association coefficients
Compare association coefficient for 2 years
Byrne et al. (1989)
Drakensberg mountain baboon
Pr
Not given
26 (this study)
a + s
Participants in grooming or approach/retreat interactions; nearest neighbors
Counts of grooming, nearest neighbor and approach/ retreat interactions
Average link cluster analysis; sociogram; matrix only (approach/ retreat)
Discuss variation with season
Cantoni and Vogel (1989)
Greater whitetoothed shrew
In
Not given
26
s
Within 1 m of one another; in the same nest; home ranges overlap
Simple ratio; proportion of home range overlap
Sociogram; map of home ranges
Compare winter with breeding season
Chapman (1990)
Spider monkey
Pr
42 (within study area)
35
a + s
In the same subgroup (= coordinated activities, close spatial contact)
Twice-weight
Cluster analysis
Discuss sociability in re: to food availability
Chepko-Sade et al. (1989)
Rhesus monkey
Pr
Not given
126
a + s
Participants in grooming interaction
Counts of being groomed & grooming; prop, of total group grooming
Cluster analysis: sociogram
Not considered
Clarke and FitzGerald (1994)
Bell miner
Bi
9 to 58 (on study site)
all
a + s
Ranges overlap
Proportion of foraging range overlap
Map of range overlap
Not considered
Corradino (1990)
Japanese macaque
Pr
14 (captive)
14
a + s
Within 1.5 m of each other
Half-weight
Nonmetric multidimensional scaling
Compare breeding and nonbreeding seasons
Deng and Zhao (1987)
Stump-tailed macaque
Pr
Not given
29
a + s
Within 5 m: participants in affiliative or agonistic interaction
Half-weight; counts of agonistic interactions
Single-link cluster analysis: matrix only (agonistic interactions)
Compare sociability of different age classes
Digby (1995)
Common marmoset
Pr
Not given
33 (this study)
a + s
Participants in dominant/subordinate or grooming interaction; nearest neighbor (< 2 m)
Proportion of nearest neighbor & grooming interactions; counts of dominant/subordinate interactions
Sociogram; matrix only (dominant/subordinant interactions)
Discuss changes in sociability prior to emigration
Eckman (1979)
Willow tit
Bi
21 (on study site)
20
a + s
In the same group (= foraging close together)
Twice-weight
Histogram of obs. and exp. prop, of joint occurrences
Not considered
Eckman (1979)
Crested tit
Bi
13 (on study site)
12
a + s
In the same group (= foraging close together)
Twice-weight
Histogram of obs. and exp. prop, of joint occurrences
Not considered
Festa- Bianchet (1991)
Bighorn sheep
Un
Not given
360
a + s
In the same group (group not defined)
Counts of joint occurrences
Table: ratio of obs. to exp. joint occurrences by age/ sex class
Compare ewe–offspring association by age of offspring
Ficken et al (1981).
Black capped chickadee
Bi
Not given
Most
s
Nearest associate (< 3 m): arrive) feeder within 1 min of each other:) feeder area within the same hour: participants in agressive encounter
Half-weight: counts of outcomes of agonistic interactions
Matrices only
Compare early and late prebreeding seasons
Frank (1986a b)
Spotted hyaena
Ca
~ 3000
60–80 (this study)
a + s
Present within the clan (= all study animals): participants in agonistic interaction
Occurrence within the clan: counts of outcomes of agonistic interactions
Sighting history diagram. matrix only (agonistic interactions)
Compare clan membership for 4 years
Ginsberg (1989)
Grevy's Zebra
Un
Not given
1084
s
In the same group (group not defined)
Rate of group turnover
Line graph of % group remaining by study day
Graph % group remaining by day
Goodall (1986)
Chimpanzee
Pr
~ 160
all
a + s
In the same party (= travel. feed and sleep together)
Twice-weight
Sociogram
Present raw data matrices by day for different years
Greenberg- Cohen et al. (1994)
Nubian ibex
Un
~ 300
45
a + s
Participants in agonistic interaction
Counts of outcomes of agonistic interactions
Matrix only
Compare hourly rate of interaction through day
Herrera and Macdonald (1987)
Capybara
Ro
Not given
Not given
a + s
In the same group (= frequently present & generally tolerated)
Occurrence within group
Sighting history diagram
Compare group membership in two years
Hillman (1987)
Common eland
Un
Not given
~ 180
a + s
In the same group (= within 50 m & moving in same direction or behaving similarily)
Cole's index
Table: frequency of classes of assoc. coeff. by age/sex class; sighting history diagram
Compare duration of association by age class
Hirotani (1990)
Reindeer
Un
~ 130
All
a + s
In the same group (= apart from other aggregations; coordinating activities)
Twice-weight
Bar chart: mean assoc. coeff. between moms and diff. aged daughters by season
Compare nonrutting I & II and calving seasons
Johnson (1989)
Red-necked wallaby
Ma
98 adults (within study area)
98
a + s
In the same group (= a gathering in one place; within 30 m of one another)
Half-weight
Line graph: mean assoc. coeff. by age/sex class vs companion rank
Compare ♀ sociability in different reproductive stages
Kappeler (1993)
Ringtailed lemur
Pr
10 (captive)
10
a + s
Nearest neighbor: participants in affiliative or agonistic interaction
Proportion of nearest neighbor occurrences; counts of affiliative and agonistic interactions
Table: obs. & exp. nearest neighbor scores by sex class: matrices only (affinitive & agonistic interactions)
Not considered
Kappeler (1993)
Redfronted lemur
Pr
8 (captive)
8
a + s
Nearest neighbor: participants in affiliative or agonistic interaction
Proportion of nearest neighbor occurrences; counts of affiliative and agonistic interactions
Table: obs. & exp. nearest neighbor scores by sex class: matrices only (affinitive & agonistic interactions)
Not considered
Kappeler (1993)
Crowned lemur
Pr
4 (captive)
4
a + s
Nearest neighbor; participants in affiliative or agonistic interaction
Proportion of nearest neighbor occurrences; counts of affiliative and agonistic interactions
Table: obs. & exp. nearest neighbor scores by sex class; matrices only (affinitive & agonistic interactions)
Not considered
Karlsson (1988)
Bank vole
Ro
Not given
23
s
Home ranges overlap
Proportion of home range overlap
Table: obs. & exp. assoc, coeff.; map of home ranges
Compare home ranges in different months
Knight (1970)
Elk
Un
2000–3000
209
a + s
Observed together
Half-weight
Table: frequency of classes of assoc, coeff.
Compare mean coefficients in different seasons
Koenig and Rothe (1991)
Common How is data read from an optical disc?An optical disk drive uses a laser beam to read the data from the disk as it is spinning. It distinguishes between the pits and lands based on how the light reflects off the recording material. The drive uses the differences in reflectivity to determine the 0 and 1 bits that represent the data.
Is DVD memory optical storage?DVD-RAM is a portable, removable and rewritable optical disc format. Unlike the standard DVD medium, DVD-RAM can be written, erased and/or overwritten (with a maximum overwrite capacity of 100,000).
How is data stored on optical discs such as CDs and DVDs?How is data stored on a tape? Optical storage media, such as CDs, DVDs, and Blu-ray discs, store bits by using an optical laser to burn pits into the surface of a highly reflective disc. A pit in a specified location represents a 0, and the lack of a pit represents a 1.
Can DVDIn some video recorders DVD-RAM can be written to and read at the same time, allowing one program to be recorded and a different one, or an earlier part of the same one (time slip recording), to be viewed at the same time.
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