[leps-talk] MALE x FEMALE emergence

[Nigel Venters]

Hank et al-
Good point...I looked up Symbiosis in my 1989 "London Universal Dictionary"
and it gave me..."A relationship between two or more different organisms in
close association"...it then goes on to muddy the water by
stating......."Especially one that is of benefit to all the organisms
involved"

So the process (Symbiosis..as I understand it) is that either one or both
organisms may benefit....but there is
a line drawn when the relationship is to the detriment of one of the species
involved...then you have parasitism.

I agree that parasites do not usually kill their host...but they often
weaken it so it becomes more vulnerable to predation. Malaria is a
parasite...and often kills people...O.e. is a parasite...and often kills
Monarchs...or weakens them so much that they become ineffective breeding
stock...so in effect parasites also restrict species reproduction.......so
the relationship is to the detriment of one of the species involved..as does
the certain death though Parasitoids.

So I suppose there is also a line to be drawn between
disease...Virus/Bacteria...and disease...Parasite...(Protozoan) What do you
think? I think we can safely draw the line between all these and
Parasitoids!

regards
Nigel


---- Original Message -----
From: "Hank Brodkin" <hbrodkin at earthlink.net>
To: <nigelventers at ntlworld.com>; <rjparcelles at yahoo.com>; "Anne Kilmer"
<viceroy at GATE.NET>; <drdn at mail.utexas.edu>
Cc: <leps-l at lists.yale.edu>
Sent: Sunday, May 26, 2002 12:43 PM
Subject: Re: [leps-talk] MALE x FEMALE emergence


> Nigel et al -
> (Webster's Ninth New Collegiate Dictionary):
> Parasitism - "an intimate association between organisms of two or more
> kinds;  esp: one in which a parasite obtains benefits from a host which it
> usually injures"   It is my understanding that a parasite does not usually
> kill its host, as it is more benefit to tis host alive - or am I wrong?
>
> A parasitoid, about which I think you are referring, Nigel: "an  insect
and
> esp. a wasp [also some flies] that completes its larval development within
> the body of another insect eventually killing it and is free living as an
> adult"
>
> Mutualism would be a "mutually beneficial association between different
> kinds of organisms" and symbiosis, at least in my dictionary  is defined
as
> "1: the living together in more or less intimate association or close
union
> of two dissimilar organisms  2:the intimate living together of two
> dissimilar organisms in a mutually beneficial relationship; esp :
MUTUALISM"
>
> Of course it is possible these definitions have changed since my
dictionary
> was published in 1983.
>
> --------------------
> Hank Brodkin
> Carr Canyon, Cochise County, AZ
> hbrodkin at earthlink.net
> SouthEast Arizona Butterfly Association (SEABA)
> http://www.naba.org/chapters/nabasa/home.html
> "Butterflies of Arizona - a Photographic Guide"
> by Bob Stewart, Priscilla Brodkin and Hank Brodkin
> http://home.earthlink.net/~hbrodkin/book.html
>
>
> ----- Original Message -----
> From: "Nigel Venters" <nigelventers at ntlworld.com>
> To: <rjparcelles at yahoo.com>; "Anne Kilmer" <viceroy at GATE.NET>;
> <drdn at mail.utexas.edu>
> Cc: <leps-l at lists.yale.edu>
> Sent: Sunday, May 26, 2002 2:42 AM
> Subject: Re: [leps-talk] MALE x FEMALE emergence
>
>
> > I thought symbiosis gave benefits to both creatures in the
> > relationship...parasitism seems a little out of the frame? I suppose you
> > could say that parasitism helps keeps the numbers of any species down to
a
> > level that the environment is not damaged irreversibly by huge hordes of
> > hungry larvae...in effect a benefit to the species in the long
run....but
> is
> > this symbiosis?
> > Nigel
> > ----- Original Message -----
> > From: "Bob Parcelles,Jr." <rjparcelles at yahoo.com>
> > To: "Anne Kilmer" <viceroy at GATE.NET>; <drdn at mail.utexas.edu>
> > Cc: <leps-l at lists.yale.edu>
> > Sent: Saturday, May 25, 2002 2:13 PM
> > Subject: Re: [leps-talk] MALE x FEMALE emergence
> >
> >
> > >
> > > --- Anne Kilmer <viceroy at GATE.NET> wrote:
> > >
> > > > The ant/butterfly relationship, incidentally, is mutualism rather
> > > > than
> > > > symbiosis.
> > > > Cheers
> > > > Anne Kilmer
> > > > May all your blues be butterflies
> > >
> > >
> > > Just would like to point there are several types of symbiosis of
> > > which mutualism is only one . commensalism is another and i guess
> > > technically speaking parasitism is another.  fascinatining subject
> > > but helps if we are all on the same page.
> > >
> > > bob
> > >
> > > =====
> > > Bob Parcelles, Jr
> > > Pinellas Park, FL
> > > RJP Associates & Clean Millennium Movement (C2M)
> > > rjparcelles at yahoo.com
> > > http://groups.yahoo.com/group/naturepotpourri
> > > "Change your thoughts and you change your world."
> > > - Norman Vincent Peale
> > >
> > > __________________________________________________
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