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SCRATCHING AS PART OF
TERRITORIAL BEHAVIOUR
Dr.
Patrick Pageat
Scratching
is a common cause for complaint by owners about their cats. Their
position, usually in highly visible places, can result in an acute
conflict between owner and cat.
1)
Definition and importance.
Definition
Scratch
marks are one of the types of territorial mark and have this as their only
function. They are, as with urinary marking, a way of marking territory
with both visual and pheromonal signs at the same time. The pheromones are
liberated on the surface by the foot pads (Pageat P., 1996).
There
are 2 main characteristics :
1)
The scratches associated with territorial behaviour are one of the ways of
communicating used by a cat; this explains the selection of scratching
sites chosen by a cat : sites that are highly visible and usually vertical
(Pageat P., 1996, MacKeown D.
et al , 1988) . When the problem of scratching is long standing (more than
6 months and often several years) horizontal sites may also be used. Other
scratches, particularly those on horizontal sites, produced during play,
sexual excitement or hunting do not fall under this definition.
2)
They are produced as part of a behavioural sequence which is recognised by
most owners :
·
the cat
approaches the surface to be scratched
·
surface is
smelt, followed by Flehmen
·
the limbs are
stretched with extension of spine
·
it scratches the
site using both its forepaws alternately
Behavioural
importance of scratching
Sharpening
and wearing down of claws has often been proposed as the principal reason
for scratching (Hart B., Hart L.). These functions on their own do not
explain several observations :
The
frequency and the behaviour of certain individuals has no relationship
with the rate of growth of their claws.
Declawing
by surgical amputation (onychectomy), which prevents the upsetting aspect
of scratching for the owner, does not stop the behavioural sequence of
scratching in some cats.
This
shows that there exists in some cats a real need to scratch in strategic
sites; an action related to territorial behaviour.
The
posture adopted by the cat when scratching has also produced
interpretations on the importance of scratching ; expression of dominance
in front of others (Leyhausen P., 1979), result of excitement by presence
of owner (Mertens C., Sharp R., 1988),...
Currently,
the role of communication is accepted by most authors as the major role
for scratch marks (Pageat P., 1996, Dehass
J., De Buyser C., 1993, Turner D.C., Bateson P., 1988). It is the marks
left (visual and pheromonal) which probably cause the cat to return to the
same place (Schilder, M.B.H., 1991).
The position adopted by the
cat during the behavioural sequence of scratching (stretching of limbs and
back) is called the posture de soulignement (Pageat P., 1996). Even if it
does not transmit a message in itself, it accentuates the deposition of
territorial marks.
Other observers comment that
for this to be the case, the posture would have to be unique to scratching
activity and most cats adopt this posture after sleeping or resting; it is
probably simply a preparatory action to stimulate circulation in its
muscles .
Scratch
marks signal the presence of an occupant in an area.
2) Predisposing factors and
position of scratch marks
A
study into the circumstances surrounding the placing of scratch marks has
allowed two populations to be distinguished (Pageat P., 1996) :
Population
1 - Cats for which scratching is an
inherent part of territorial behaviour.
Population
2 - Cats for which scratching
results from a temporary or reversible psychological condition
Population
1
Separation
from the mother at or before 6 weeks old is an important predisposing
factor for the scratching to become inherent as a territorial behaviour.
This type of separation is often seen in rural areas where the mother,
once pregnant again, leaves her kittens resulting in a low level of
socialisation - these cats are more inclined to develop scratching
behaviour. Cats which have always lived in a rural area scratch mark 4
times per day on average (Panaman R., 1981). This
behaviour could be considered as the expression of a mild but irreversible
psychological condition resulting from early separation from the mother.
An alternative is to
consider this situation to be the normal with females becoming pregnant
and leaving kittens at the earliest time that nature intended. The high
use of scratch marks confirms the perfect feline socialisation and
psychological stability of the kittens but represents a low level of
learnt socialisation with humans.
For
these cats, scratching is virtually indispensable as a means of territory
marking. When they are stopped from marking a given scratch site, whatever
the method, the scratching is displaced to another site near to the
original site. The scratches are mainly found next to territorial areas
within which the cat does not readily tolerate the presence of any other
animal with which it is familiar, areas such as :
Near an isolation area (sleeping place or hiding place)
Near an elimination area (litter tray)
Near a good hunting area (for cats living indoors, hunting areas can be
where behaviour similar to hunting takes place : capture of owner’s
legs, ambush of dog’s tail, etc...
Population
2
This
group of cats start to scratch during or after events that have worried /
stressed the cat, particularly :
Access to too much space for it to organise.
An area which many animals, including cats, use as a pathway.
Repeated territorial transgressions in an area important to the cat.
In overpopulated areas.
For
these cats, the scratch marks are not associated with the area of concern
to the cat but are always situated on highly visible sites such as the
corner of the sofa, front door, etc...
It is possible for a cat to
exhibit both types of scratch marking. In these cases the scratches can be
produced almost anywhere. The approach to use for these cats should be
that as for Population 1.
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Predisposing
factor
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Location
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|
Population
1
Scratching
is an inherent part of territorial behaviour.
|
Separation
from mother at or before 6 weeks old
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Near
to areas of activity - place of hiding, elimination area, hunting
places.
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|
Population
2
Scratching
results from a destabilising event
|
-
Space too big
-
Pathway for other animals
-
Repeated invasions
-
Overpopulation |
Highly
visible strategic position
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Mixed
Types
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Anywhere |
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Observation
of the behaviour of cats allows 2 distinct populations to be
distinguished :
population
1 for which
the scratch marks are a natural part of their territorial behaviour.
Scratching can be suspended (particularly at the place upsetting the
owner) but a scratch site must be provided for the cat not far from
the site originally scratched.
population
2 for which
scratching follows a temporary psychological stress. Scratching can
be permanently stopped because scratching is not inherent to the
cat’s normal behaviour. |
EFFECT
OF FELIWAY ON SCRATCHING
Trial 1 :
Population 2 - scratches
following a psychological stress.
Materials
and methods :
53
cats presented for scratch marking following a psychological stress.
FELIWAY
was sprayed once per day for Dehass J., De Buyser C., 1993 days on each
scratch mark.
Observation
during treatment and for a further 7 weeks; 11 weeks of observation in
total.
The
number of scratches per day was recorded with the aid of reinforced
tracing paper which was used to cover half of a scratch site ( the other
half was left uncovered so as to avoid any effect due to the presence of
the paper). The paper was changed each day and each set of two parallel
scratched lines was considered as a scratch.
Results:
(In order to simplify the
results for presentation the number of scratchings for a cat per day was
divided by four with the result rounded up to the next whole number to
obtain the scratch quotient : SQ.)
·
At day 0, before
treatment the average SQ per cat was 5.3.
·
From day 1, the
SQ reduced for all of the cats, by day 3, 39 cats (74 %) had completely
stopped scratch marking.
·
At day 21, 52
cats (98 %) had stopped scratch marking.
·
Between day 28
(end of FELIWAY treatments) and day 77 (end of observations) only 2 cats
made scratch marks periodically. These consisted of a maximum of 4 per day
compared to 20 - 28 per at day 0 (total numbers NOT scratch quotient).
Conclusion
:
Due
to its ability to calm cats, FELIWAY has a marked inhibitory effect on
scratching behaviour. The efficacy of FELIWAY on scratching due to a
temporary psychological condition is about 96 % when administered for 28
days.
Trial 2 :
Materials
and methods :
32
cats in two groups :
Group
A : 9 cats with scratch marks near areas of activity, 5 of which also had
scratch marks associated with a stressful event.
Group
B : 23 cats with scratch marks due to
a stressful event (scratch marks not near any specific area of activity).
Based
on the results of Trial 1, FELIWAY was sprayed once per day for 21 days on
each scratch mark.
Observation
during treatment and for a further 4 weeks; 7 weeks of observation in
total.
The
number of places scratched per day was recorded with the aid of tracing
paper which was used to cover half of a scratch site ( the other half was
left uncovered so as to avoid any effect due to the presence of the
paper). The paper was changed each day and a single scratch determined
that the site was considered a scratch mark site.
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GROUP
A
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GROUP
B
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Day
0
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An
average of 5 scratch mark sites used daily for both groups
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Day
1
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An
average of 1.6 scratch mark sites used daily for both groups - an impressive reduction |
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Day
7
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8
of 9 cats have no scratch mark sites
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22
of 23 cats have no scratch mark sites
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Day
20
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Re-
start of scratch marks with 2 cats
(1
and 2 sites respectively)
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Day
21- end of treatment |
3
of 9 cats have 1-2 scratch mark sites
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23
of 23 cats have no scratch mark sites |
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Days
22 - 49 |
8
of 9 have a new scratch mark site situated not far from one of their
previous sites, an average of 0.9 sites per cat
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Reappearance
of one site at day 25 for 1 cat up to end of observation period |
Conclusion
:
Cats in population 1, Group
B :
The
use of FELIWAY once per day for 21 days produces the complete
disappearance of scratch marking without relapses in 96 % of cats.
Cats in population 2, Group
A :
FELIWAY
has an inhibitory effect on scratch marking during the period of use.
Scratch Marking appears essential for these cats and restarts within one
week of the end of use of FELIWAY in places not far from the original
sites. It is necessary to associate FELIWAY with a visible scratching post
near to the initial territorial area that was scratched.
METHOD
OF USE OF FELIWAY FOR SCRATCH MARKING
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Problem
type
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Treatment
schedule and comments
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Population
1
Scratch
marking as an inherent part of territorial behaviour
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1)
FELIWAY is sprayed once per day for 21 days on each scratch marked
site :
spray
from a distance of 10 cms.
ensure
that all the site is covered
2)
FELIWAY should be used to mark out the routes used by the cat in the
room(s) where scratch marks occur, particularly when the problem is
of more than 1 month old
3)
Provide the cat with a clearly visible scratching post near to each
area of activity that is subject to scratch marks
Notes :
1.
It
is probably better to wait until the cat starts to use the
scratching posts before undertaking any repairs to old scratch
marks.
2.
Studies
are underway to confirm the optimal treatment protocol for this
group of cats. |
|
Population
2
Scratch
marking as a result of a temporary psychological condition of the
cat
|
1)
FELIWAY is sprayed once per day for 21 days on each scratch marked
site :
spray
from a distance of 10 cms.
ensure
that all the site is covered
2)
FELIWAY should be used to mark out the routes used by the cat in the
room(s) where scratch marks occur, particularly when the problem is
of more than 1 month old |
DEHASSE J., DE BUYSER C.,
1993 : Socioecologie du chat, Prat. Med. Chir. An. Comp., Dehass J., De
Buyser C., pp 469-478.
LEYHAUSEN P.,
1979 : The predatory and social behaviour of domestic and wild cats,
Garland STPM Press Editors, New York.
MACKEOWN D. et al.,
1988 : The problem of destructive scratching by cats, Can. vet. Journal,
Turner & Bateson, pp 1017 - 1018.
MERTENS C., SHARP R.,
1988 : Practical aspects on research in cats, in The domestic cat, the
biology of its behaviour, Turner and Bateson, Cambridge University Press.
PAGEAT P.,
1996 : Communication et territoire chez le chat, Cours de base du Groupe
d’Education du Comportement des Animaux Familiers, Conference at
Toulouse.
PANAMAN R.,
1981 : Behaviour and ecology of free ranging female farm cats (felis catus),
Z. Tierpsycol., 56, pp 59-73.
SCHILDER M.B.H.,
1991 : Behavioural problems in the cat, Tierarztliche Monatsschrift, 78,
No. 5, pp 163-172.
TURNER
D.C. & BATESON P.,
1988 : the domestic cat, the biology of its behaviour, Cambridge
University Press.
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