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Medical Forum / General / General / August 2005

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instead of spaying or neutering is there a pill that would make cats/dogs sterile

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a_plutonium@hotmail.com - 10 Aug 2005 08:00 GMT
Title says it all. I was wondering if the medical vet profession has
devised a pill which would de-sex a cat or dog and leave otherwise
unharmed. Instead of the operation, I would think such a pill would be
do-able.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
REP - 10 Aug 2005 08:44 GMT
> Title says it all. I was wondering if the medical vet profession has
> devised a pill which would de-sex a cat or dog and leave otherwise
> unharmed. Instead of the operation, I would think such a pill would be
> do-able.

I realize the OP is a troll, but if anyone is wondering, some vets will
perform tubal ligations or vasectomies on cats. Toms with vasectomies
are usually used in breeding programs as "teaser toms" for queens in
heat who are not ready to have a litter for whatever reason. An intact
but sterile tom will still spray. Leaving a female cat intact but
sterile leaves her vulnerable to pyometra, so a 'birth control pill' for
cats would not be of much benefit unless it also prevented pyometra.
Intact female cats also have a higher incidence of mammary cancer.

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

a_plutonium@hotmail.com - 10 Aug 2005 17:35 GMT
Well I was wondering if there was something like a radiation beam of a
soft radioactive substance that when a male penis is positioned in
front of the beam and turned on and a few seconds later the male is
rendered sterile. And likewise for female. A radiation that renders
sterility instead of operations. So we invent a cone shaped object for
which we hold the male genitals up against or the female genitals up
against and a second later the animal is sterile.

I have to look up what pyometra is.

Also I learned how to recognize whether a kitten is male or female, an
easy way. When they have there tails straight up in the air and can see
their bungehole (is there ever a polite term for this) that the male
kitten shows signs of a penis next to the bungehole whereas the female
has only the bungehole. And I was really surprized after the spaying of
my female cat that her uterus is so far up the body as to be about
middle between her tits. I had assumed the uterus of cats was near the
bungehole also. I am still trying to figure out what the geometry of
the sex act for cats would thus be, in light of the fact that the
uterus is so far up the body.

I still want to investigate the numbering of cats with a semipermanent
dye so that I can easily identify the kittens. Is there a good dye that
human females use for their hair. I think I will number the female
kittens with the odd numbers of 1,3,5 for I suspect I have three female
kittens and leave the 2,4 for the two males. Judging from their sizes,
I estimate two of them are males.

I was wondering if the kittens when fully grown will try to evict the
mother cat becuase they smell her as sterile since she is spayed.
Already I am seeing some of the kittens ward-off the mother at the
feeding station by a kitten with a paw to the face.

Also, I am trying to figure out how cats vision can spot me so well,
even when I am inside a pickup. And it matters not whether I am wearing
different clothing that the cat instantly recognizes me. This cat
recognition is a powerful recognition.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
bae@cs.toronto.no-uce.edu - 10 Aug 2005 19:40 GMT
>Well I was wondering if there was something like a radiation beam of a
>soft radioactive substance that when a male penis is positioned in
[quoted text clipped - 3 lines]
>which we hold the male genitals up against or the female genitals up
>against and a second later the animal is sterile.

Producing radiation burns on the external genitalia has no effect on
fertility.

>I have to look up what pyometra is.

Infection of the uterus.

>Also I learned how to recognize whether a kitten is male or female, an
>easy way. When they have there tails straight up in the air and can see
[quoted text clipped - 6 lines]
>the sex act for cats would thus be, in light of the fact that the
>uterus is so far up the body.

The term is "anus".

Kittens are easy to sex.  Under the tail, the males have a : and the
females have an upside down !.

Cats have a bicornuate uterus.  Each horn extends quite far up towards
the diaphragm especially when they are pregnant.  It takes a lot of
space and surface area for six kittens.  They have 4 pairs of nipples,
from chest to lower abdomen.  Unlike swine, the "hind tits" are the
most productive.  (Recall the rustic phrase for somebody who loses out:
"left sucking hind tit", which refers to pigs, not cats.

As for the sex act, the female crouches with her rear elevated and her
tail to the side.  The male holds her by the scruff with his mouth, and
crouches with the opposite curvature.  He inserts his penis in her
vagina.  Cats have very flexible spines.  The uterus doesn't have much
to do with copulation.

I'm sure you can find diagrams of the cat reproductive system on the web.

>I still want to investigate the numbering of cats with a semipermanent
>dye so that I can easily identify the kittens. Is there a good dye that
>human females use for their hair. I think I will number the female
>kittens with the odd numbers of 1,3,5 for I suspect I have three female
>kittens and leave the 2,4 for the two males. Judging from their sizes,
>I estimate two of them are males.

Size is unreliable for sexing kittens.

>I was wondering if the kittens when fully grown will try to evict the
>mother cat becuase they smell her as sterile since she is spayed.
>Already I am seeing some of the kittens ward-off the mother at the
>feeding station by a kitten with a paw to the face.

To other cats, spayed cats seem to be indistinguishable from intact
cats that aren't in heat, AFAICT.  We certainly get enough toms
spraying on our porch hoping that our spayed females will come in heat
and read their advertisements.

Domestic cat social systems are based on females and their female
descendants.  Mother cats will generally try to drive away their sons,
but establish long term relationships with their daughters and
granddaughters up to the nth generation.  The males tend to go off
and try to find a territory for themselves if they can.

Cats can come into heat as young as four months, so act soon if you
don't want another dozen or so kittens to deal with.  Maybe the vet
will give you a group rate, since the kittens can be kept together in
the same cage.

>Also, I am trying to figure out how cats vision can spot me so well,
>even when I am inside a pickup. And it matters not whether I am wearing
>different clothing that the cat instantly recognizes me. This cat
>recognition is a powerful recognition.

They probably recognize the pickup.  Our cats could identify the sound
of our truck at a considerable distance, and come out to meet us at the
road, where we parked, about 1/4 mile from the house.  Cats are very
observant and have excellent memories for things that interest them,
like prey, food and shelter.

Btw, why try to dye the kittens?  If they can identify you, with brains
the size of a walnut meat, you should be able to use your much larger
brain to identify them, right?
Sbharris[atsign]ix.netcom.com - 11 Aug 2005 04:17 GMT
> They probably recognize the pickup.  Our cats could identify the sound
> of our truck at a considerable distance, and come out to meet us at the
> road, where we parked, about 1/4 mile from the house.  Cats are very
> observant and have excellent memories for things that interest them,
> like prey, food and shelter.

COMMENT:

Yep. I've seen cats identify a PARTICULAR arriving car from inside a
house, when the human ear was not yet able to identify that any cars
were on the road, let alone the one of interest. You see this behavior
come out when a person associated with the particular vehicle feeds the
cats on arriving home. I have the impression that cats have a slightly
better aural memory and discrimination than dogs--- though I've seen
dogs do this also.

Cats, like dogs, also recognize human shape, body size, and something
about faces. I've seen a cat "recognize" a "strange" daughter who
looked like her mother, from reflection in doorway glass, in a
situation where smell could not have been involved, and probably not
sound. When a cat recognises a known non-threatening person, the tail
goes straight up without being fluffed. When this cat recognized the
error on close inspection of the face in the reflection as distance
closed (it was watching the eyes), the tail went down, eyes went wide,
and the cat took off. Cats, like dogs, do look at faces. You won't find
them staring at your knees or your chest.

SBH
Carey Gregory - 11 Aug 2005 07:28 GMT
>I've seen a cat "recognize" a "strange" daughter who
>looked like her mother, from reflection in doorway glass, in a
[quoted text clipped - 4 lines]
>closed (it was watching the eyes), the tail went down, eyes went wide,
>and the cat took off.

That's a great bit of observation there.
REP - 11 Aug 2005 08:09 GMT
> I was wondering if the kittens when fully grown will try to evict the
> mother cat becuase they smell her as sterile since she is spayed.

No, they won't. Newborn kittens will readily suckle from a recently
spayed queen or an intact queen and if they are not separated from their
mother, have no reason to reject her whether she is intact or not. Adult
cats don't care if their father is intact or not, either, judging from
the behavior of the cats who live here.

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

a_plutonium@hotmail.com - 11 Aug 2005 17:44 GMT
> > I was wondering if the kittens when fully grown will try to evict the
> > mother cat becuase they smell her as sterile since she is spayed.
[quoted text clipped - 4 lines]
> cats don't care if their father is intact or not, either, judging from
> the behavior of the cats who live here.

I am fairly confident that the number 1 priority in a cat's life is a
home and home territory. And if the food supply shrinks then cats would
likely evict or kill other cats regardless of whether they are mother
or siblings.

I think the way a cat's mind works is that it seeks and wants and needs
a home. Once it has a home it subconsciously calculates the land for
which it can adequately feed without too much stress. Everyone who has
cats and feeds them then they never really get down to that lowest
level where cats have a home and a clearly marked out territory which
involves the eviction of other cats, even the mother if the food supply
is small.

When the food supply is large, such as my cats, then I notice an
unnatural behaviour in cats not found in the wild. The behaviour of
protecting and over-guarding of the home site. In the wild, the mother
cat would be teaching the kittens mostly how to hunt and would be
actively hunting. Cats fed by humans would teach their kittens, not how
to hunt avidly but instead, how to cry and whine and beg when they
sense that feeding time is near at hand. I think two of my kittens are
trying to outcompete the mother when it comes to crying and whining and
begging for food. And the mother cat instead of the avid hunter becomes
a bulldog like protector and guarder of the home site area. It is funny
that my female cat now has the neighborhood dogs on a tiptoe-behaviour
whenever they are near the house, when previously they would come
charging and barging up to the porch. Now the dogs smell a scent that
raises their hair come 20 feet of the house and then they tread lightly
looking for the cat.

In the wild, cats would spend most of their time hunting, but as a well
fed pet they spend most of that time guarding.

If I were to go on a 2 month vacation and not leave provisions for
feeding the cats, I suspect when I return that there would not be a
mother cat with 5 kittens but only one or two cats with the rest
evicted.

In the wild, horned owls and coyotes and foxes kept a check on cat
litters and it was likely that zero or one kitten survived a litter.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
Sbharris[atsign]ix.netcom.com - 11 Aug 2005 19:33 GMT
> When the food supply is large, such as my cats, then I notice an
> unnatural behaviour in cats not found in the wild. The behaviour of
[quoted text clipped - 3 lines]
> to hunt avidly but instead, how to cry and whine and beg when they
> sense that feeding time is near at hand.

LOL. I don't know if this happens in cats, but it may well happen in
humans.

> In the wild, cats would spend most of their time hunting, but as a well
> fed pet they spend most of that time guarding.

If you call lying on a pillow with all four feet in the air like
roadkill, "guarding."

> In the wild, horned owls and coyotes and foxes kept a check on cat
> litters and it was likely that zero or one kitten survived a litter.

Felis domesticus liters are already twice the size that N. African
desert cats (their ancestors) have in the wild. And their brains are
2/3rds the size. They are well on the way to parasitism. The females
are welfare queens, if you will.

SBH
DZ - 11 Aug 2005 21:04 GMT
> Felis domesticus liters are already twice the size that N. African
> desert cats (their ancestors) have in the wild. And their brains are
> 2/3rds the size. They are well on the way to parasitism.

The same happened to dogs and according to Allman (Evolving Brain) to
humans as well - the average brain size has reduced compared to that
of 35,000 years ago.
REP - 12 Aug 2005 05:38 GMT
> > > I was wondering if the kittens when fully grown will try to evict the
> > > mother cat becuase they smell her as sterile since she is spayed.
[quoted text clipped - 9 lines]
> likely evict or kill other cats regardless of whether they are mother
> or siblings.

Not really. There are some good studies of feline behavior in feral
colonies, if you're really interested. If you're not, in a nutshell:
cats aren't solitary and form cooperative colonies, even when food is
scarce. (By feral I mean either domestic cats either born wild or gone
wild; not urban strays - that's another kettle of fish. So to speak.)

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

bae@cs.toronto.no-uce.edu - 13 Aug 2005 02:24 GMT
>> I am fairly confident that the number 1 priority in a cat's life is a
>> home and home territory. And if the food supply shrinks then cats would
[quoted text clipped - 6 lines]
>scarce. (By feral I mean either domestic cats either born wild or gone
>wild; not urban strays - that's another kettle of fish. So to speak.)

Domestic cats seem to have evolved from the wild species F.libyca (sp?)
by developing social behavior that lets them live in close proximity.
This enables them to take advantage of the concentration of rodent prey
around human settlements.

I read a study once by someone who had observed both domesticated cats
and the wild species exploiting the rodents around a granary in Saudi
Arabia, IIRC.  The domestic cats were willing to live in close
quarters, retaining the social behaviour of kittens with their mothers
and littermates into adulthood, and spent time together voluntarily.
Cats of the original wild species were far more solitary and commuted
to the granary from distant sites outside the village.  They avoided
all other cats with the exception that mothers brought their mobile
kittens up to a few months old with them.

This process of self-domestication has been a big win overall for
domestic cats.  Of all the 37 cat species, many of which are about the
same size as domestic cats, it's the only one that isn't in danger, for
some species extreme danger, of extinction, and it's the only one with
a world-wide range.
REP - 13 Aug 2005 12:01 GMT
> This process of self-domestication has been a big win overall for
> domestic cats.  Of all the 37 cat species, many of which are about the
> same size as domestic cats, it's the only one that isn't in danger, for
> some species extreme danger, of extinction, and it's the only one with
> a world-wide range.

Self-domestication was a smart move, as was wrapping an efficient little
killing machine in an adorable fluffy package.

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

bae@cs.toronto.no-uce.edu - 14 Aug 2005 05:27 GMT
>> This process of self-domestication has been a big win overall for
>> domestic cats.  Of all the 37 cat species, many of which are about the
[quoted text clipped - 4 lines]
>Self-domestication was a smart move, as was wrapping an efficient little
>killing machine in an adorable fluffy package.

Ah, but cats are, as the evolutionary biologists would describe it,
preadapted to their role as our commensals or symbiotes.  The round heads
with short snouts and large, forward facing eyes trigger our instinct to
feel sympathetic to and protect juveniles.  Their facial expressions seem
to be enough like ours that they are easy to read.  It's also helpful that
they can make sounds like human infants.

It's interesting that while agriculture was independently invented in at
least six different geographical locations, only the wild cat of Egypt
domesticated itself.  I can think of several handwaving explanations why
the small native felines of the other areas didn't get in there and exploit
that new and massively expanding niche, but I don't know whether anybody
who actually knows about these matters has addressed this one.
REP - 15 Aug 2005 11:11 GMT
> >> This process of self-domestication has been a big win overall for
> >> domestic cats.  Of all the 37 cat species, many of which are about the
[quoted text clipped - 7 lines]
> Ah, but cats are, as the evolutionary biologists would describe it,
> preadapted to their role as our commensals or symbiotes.

Yes, that was the joke all right.

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

a_plutonium@hotmail.com - 13 Aug 2005 18:20 GMT
> Domestic cats seem to have evolved from the wild species F.libyca (sp?)
> by developing social behavior that lets them live in close proximity.
[quoted text clipped - 16 lines]
> some species extreme danger, of extinction, and it's the only one with
> a world-wide range.

I errored on an easy way of telling male from female kittens without
capture and from observation of the anus when the cat has tail up. It
is not that easy. And it is not that easy to see whether they have tits
or not, being that they are so small.

But size is beginning to differentiate the males from the females in
that the males are so much bigger and longer. And at feeding time it
appears that the smaller females control the food, the reverse of lions
where the males control the food. Size seems to make no difference at
dominance.

But I think a cat behaviour of having a home area, in the wild or
domestication is not well studied, the science of behaviour-- what is
that called? ethology. Anyway, I suspect that cats finding a home base
is their number one priority, shelter from the environment and the
degree to which they defend that shelter. My cats live under the house
and will fight off any intruders such as opossum or skunk. Once a cat
has a home and is fed by humans then the cat proportionally roam-hunts
less and protects and guards its home base more.

One of the things that endears cats to humans, more than dogs is the
facial expressions with their ears. Just the other day I was trying to
catch the kittens and tell what sex they were. Catch them by the back
of the neck and lift them so they stand on their hind legs so they do
not bite or scratch me. And I managed to get inspected 3 of the 5
kittens. But the 3rd one started to get on edge as I was looking for
tits or penis and managed to stir so much that it freed itself and went
darting off with an expression that I wish I had a camera photograph of
that miffed cat. I think this is one of the advantages of cat pet
ownership lacking in dogs is the variation in facial expression and
body expression that the miffed cat was telling me "enough of that".

But I still have a problem on my hands of these female kittens because
I do not want another litter of newborns. I keep posting about human
overpopulation and I guess I am getting a microlesson with cats.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
a_plutonium@hotmail.com - 13 Aug 2005 18:47 GMT
Anyone willing to guess what will happen with 3 female kittens, 2 male
kittens and a spayed mother, all with plenty of food. Will the 3
females come in heat before winter? Will all 3 give birth to a litter?
Will I have 15 new kittens by next Spring?

I have been harping about human overpopulation since 1993 as the major
cause of all major wars and as the number one social evil. So these
cats are a micro-window on the human problem of overpopulation.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
REP - 15 Aug 2005 11:15 GMT
> Anyone willing to guess what will happen with 3 female kittens, 2 male
> kittens and a spayed mother, all with plenty of food. Will the 3
> females come in heat before winter? Will all 3 give birth to a litter?
> Will I have 15 new kittens by next Spring?

Possibly more than 15. Trap them all when they're about three months old
and take them to your local Humane Society, where you can get them
spayed/neutered for about $20 US each. May as well them vaccinated as
well, especially of they're going to live outside; if you have opossums
and raccoons in your area, you have rabies as well.

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

a_plutonium@hotmail.com - 15 Aug 2005 18:04 GMT
> Possibly more than 15. Trap them all when they're about three months old
> and take them to your local Humane Society, where you can get them
> spayed/neutered for about $20 US each. May as well them vaccinated as
> well, especially of they're going to live outside; if you have opossums
> and raccoons in your area, you have rabies as well.

Perhaps only California has a $20 rate and other areas has a $100 rate.

The pragmatic solution in that case is to trap and hand over to the
local animal control which either adopts them out or euthanisizes them.

Now I was wondering about the cat that lived here previously. It was
also a female and she never had kittens or at least she never raised
any kittens. I doubt she was spayed because she was too wild. She had
her daily rounds only she hunted in trees more than on the ground. She
knew every tree with a bird nest in the area and she would climb these
trees and inspect the stage of the young bird and then harvest the
young bird as the summer progressed. Very tall trees did not stop her
nor thorny trees such as locust. And I could tell where ever she was on
a given day by the amount of bird squacking and dive bombing.

Unfortunately I got rid of her and that was a big mistake on my part.
So I wonder if that cat behaviour is something special to use trees to
harvest yearly  young birds. In the winter time this cat would climb
the trees to inspect every nest site for the upcoming Spring when the
birds returned. Her favorite was grackles, blackbirds and robins nests.

With the present 6 cats I have, the mother or her young seem to not
have that disposition to spend much time in trees. But perhaps that is
a good sign because then they can devote their hunting to keeping the
mice and rats away from the buildings.

Has anyone studied the behaviour of cats as to hunting on ground
compared to hunting in trees and harvesting bird nests. Seems to me
that it is not a learned behaviour but instinct that when a cat climbs
a tree and finds a nest that this nest is something to keep returning
to for goodies and to climb all trees looking for goodies.
P.S. So maybe one or two of my female kittens may also, like this old
cat, never have the ability to rear kittens but kills them every year.
So maybe I should let things alone until there are signs of a pregnant
cat at my back door.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
REP - 16 Aug 2005 09:15 GMT
> > Possibly more than 15. Trap them all when they're about three months old
> > and take them to your local Humane Society, where you can get them
[quoted text clipped - 3 lines]
>
> Perhaps only California has a $20 rate and other areas has a $100 rate.

Missouri's and Kansas's Humane Societies are cheaper; about $10 for
neuter and $15 for spay (not in heat, not pregnant).

> The pragmatic solution in that case is to trap and hand over to the
> local animal control which either adopts them out or euthanisizes them.

Renting traps isn't cheap; if you're looking for the cheap way out, do
nothing.

> Has anyone studied the behaviour of cats as to hunting on ground
> compared to hunting in trees and harvesting bird nests.

Of course they have you great trolling ninny. I don't have them in front
of me, and you could find them easily if you wanted, but here's an idea
from Alley Cal Allies's page:

Accused,² (March 3-16, 1994), which investigated frequently used studies
that implicate cats in the decrease of wildlife populations. Following
is an excerpt from the article listing the studies and his findings of
their accuracy.

³But what do those studies actually say? And how good is the science in
them? Here¹s some background on the two most frequently mentioned
studies, cited in Cats and Wildlife: A Factsheet from the National
Audubon Society. ³Britain¹s 5 million cats kill about 20 million birds
per year¹

³Studying the hunting trophies brought home by 78 cats in a single
English village, Peter Churcher and John Lawton found birds were 35
percent of the kill ‹by far the highest estimate in any such study. In a
1989 condensation for Natural History magazine, they multiplied their
results by the estimated number of cats in the entire nation. Rarely are
projections made with such limited data, except in junior high science
projects‹which may be an appropriate comparison, considering Churcher
teaches at a boys¹ school.

³Researchers in Wisconsin cite cats for killing 19 million songbirds.

³Doctor Stanley Temple, co-author of this frequently quoted work,
seemed exasperated when asked again to rehash his findings. ŒThe media
has had a field day with this since we started,¹ he sighed. Those
figures were from our proposal. They aren¹t actual data; that was just
our projection to show how bad it might be.¹ No one interviewed has seen
Temple¹s unpublished research.

³But the [Sonoma County] supervisors appeared to give special attention
to a letter written by Drs. Peter Connors and Victor Chow, UC/Davis
researchers working at the Bodega Marine Laboratory. By projecting the
numbers cited from Wisconsin and Great Britain, they estimated 500,000
Sonoma County birds are killed by cats annually. In a telephone
interview, Connors said he has read only the condensation of the British
study and has seen only ³extracted forms² of Temple¹s work, which of
course were guesstimates for the proposal. He was surprised to learn
this study was unpublished. ŒLook, we¹re not cat researchers,¹ said
Connors. ŒI¹ve never worked with cats at all; I¹m an ornithologist.¹
Then what expertise does he have about cats? ŒVic (Chow) has been
participating in a mentor program with Piner High School students on a
project tracking feral cats,¹ he explained. ŒWe had (radio transmitter)
collars on three animals. We didn¹t do a full study; it¹s just a program
with high school students.¹²

 

The following is an excerpt from Peter Neville¹s Claws and Purrs:
Understanding the Two Sides of Your Cat (Sidgwick and Jackson: London,
1992), p. 164. Mr. Neville is the Director of the Center of Applied Pet
Ethology in the United Kingdom.

³In England, at least, there is no evidence to suggest that the
occasional high mortality of birds due to pet cats has had any damaging
effect on even one species of bird, however distressing to birds, bird
lovers and cat owners that predation may beŠ.

³In any case, as we have seen, the strategy used by cats for catching
birds is not hugely successful at the best of times and only increases
in efficiency when the birds stalked are more vulnerable or less able to
escape.²

 

B.M. Fitzgerald, Ecology Division, Department of Scientific and
Industrial Research, New Zealand Mead has studied various aspects of
feral cats (home range, effect on birdlife, food) and the effects of
various predators on local wildlife, since 1970, in New Zealand.

³As Mead (1982) emphasized, the birds in suburban and rural parts of
Britain have coexisted with cats for hundreds of generations. And they
may now be under less pressure from cats than they were in the past from
a variety of assorted natural predators. Any bird populations on the
continents that could not withstand these levels of predation from cats
and other predators would have disappeared long ago.²

 

The following is an excerpt from Gary J. Patronek¹s, VMD, Ph.D. Tufts
University, ³Letter to Editor,² Journal of the American Veterinary
Medical Association, Vol. 209, No. 10, November 15, 1996.

³If the real objection to managed colonies is that it is unethical to
put cats in a situation where they could potentially kill any wild
creature, then the ethical issue should be debated on its own merits
without burdening the discussion with highly speculative numerical
estimates for either wildlife mortality or cat predation. Whittling down
guesses or extrapolations from limited observations by a factor of 10 or
even 100 does not make these estimates any more credible, and the fact
that they are the best available data is not sufficient to justify their
use when the consequences may be extermination for cats.

³If asking for reasonable data to support the general assertion that
wildlife mortality across the United States attributable to cat
predation is unacceptably high can be construed as Œattempting to
minimize the impact,¹ then I am guilty as charged. What I find
inconsistent in an otherwise scientific debate about biodiversity is how
indictment of cats has been pursued almost in spite of the evidence.²

 

The following is an excerpt from a speech by John Terborgh (Director of
the Center for Tropical Conservation, Duke University) at The Manomet
Symposium in 1989, Smithsonian Institution, Washington, DC.

³The global environmental crisis has caught up with migratory birds.
There are simply too many people making ever increasing demands on a
fixed supply of resources. It is inconceivable that we can continue on
the same reckless path for very long.

³The conversion of forests to cropland, pasture and urban sprawl, the
downgrading of virgin stands to second growth, and the conversion of
mixed forests to pine monoculturesŠ The inescapable implication of this
for conservation is that there is only a limited amount of time left in
which to slow human population growth and to institute other fundamental
changes in the countries of this hemisphere or many of our migratory
birds will be little more than memories.

³One country after another will pass the 100 per square kilometer
population threshold in the coming two or three decades. After this has
happened, there is really not much that can be done to salvage winter
habitat for migratory birds.²

Signature

"Did Father shoot him? I will eat Grandfather for dinner."
- Helen Keller, on learning of the death of her grandfather

a_plutonium@hotmail.com - 17 Aug 2005 17:12 GMT
It has happened again. Last time my cat caught a rabbit was during a
moonless night of darkness and some fog. This time it was a quarter
moon so not fully dark, but there was some fog patches.

So my hunch is coming true. That cat's have superior vision to rabbits
on very dark nights and with fog cover. So that on a very dark night
with fog a cat hunting would like a human with a free bill in a
supermarket store.

To prove this hunch would involve a research into the eyes of cats
versus the eyes of rabbits and that a cat eye is superior to darkness
with fog. A rabbit has little to no chance on such a night.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
Sbharris[atsign]ix.netcom.com - 16 Aug 2005 00:17 GMT
> Not really. There are some good studies of feline behavior in feral
> colonies, if you're really interested. If you're not, in a nutshell:
> cats aren't solitary and form cooperative colonies, even when food is
> scarce. (By feral I mean either domestic cats either born wild or gone
> wild; not urban strays - that's another kettle of fish. So to speak.)

COMMENT:

Yes. The North African desert cat, from which our domesticus derives,
is somewhat social, like lion prides. Most cats are pretty solitary,
but not all.

SBH
 
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