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"SHREW TALK" - Vol. 1, No. 02 - 12 June 1997

SHREW TALK - 12 June 1997 - Vol. 1, No. 2
Number of Recipients: xxx
Contents of this Issue
o Editorial
o Research
1. Sexing shrews
2. Re: Sexing shrews #1
3. Re: Sexing shrews #2
4. Re: Sexing shrews #3
o Shrew Bibliography: New Papers
o Whats New on the Shrew (ist's) Site?
o Shrew Leisure 1. Shrew ! music
o Shrew Talk Instructions
Dear Shrew-Fessionals and Shrew-Mateurs,
We have about 30 newcomers to SHREW TALK since the first newsletter on 10 June 1997. - Thank you.
For all those who now fear that their mailboxes will be filled by shrew mail: Don't worry - I stated that the newsletter would be sent out "irregularly". The first issues have to make up for all the unanswered mail I had lately.
I forgot to mention that those of you that are already on the list "Shrewists on E-Mail", will receive the newsletter automatically. You need not write to me, unless you want to be removed from Shrew Talk. Another thing is that all replies to the Shrew Talk inquiries should be posted to the group. However, if you prefer to reply to someone personally, *I* would appreciate receiving a copy of the mail (Cc or Bcc) and/or a summary of the "outcome".
This issue of Shrew Talk could be titled: "Sexing Shrews". How to sex live caught shrews, has been a frequently asked question. I intend to put up this topic on my web-site and would therefore encourage everyone who has some experience in this to share it...
Your's shrewly, Werner
1) Date: Tue, 06 May 1997 14:30:56 +0300 From: Petros Lymberakis <nhmc_vtb@cc.uch.gr>
.......a problem that I have in practical recognizing the sex in Crocidura. I have a series of bibliographical references more or less advanced but none deals directly with the subject. Is there a morphological criterion to recocgnize the sex or is a dissection needed? I would greatly appreciate a hint on the subject or the title of a text I should refer to.
2) From: dfw.kessler@saipan.com Date: Mon, 19 May 97 15:55:10 +1000 Subject: sex
Petros Lymberakis, We had this problem with Suncus. What we did was to press gently with a finger or other instrument at the anterior of the vent. This would cause the males to express the sexual organs. If nothing then female. Often the adult females would show teats clearly on the inside of the hind legs. Hope this is of some help and works for your species.
Curt Kessler Mariana Islands dfw.kessler@saipan.com _______________________________________________________________________
3) From: "Rod Baxter" <baxter@ufhcc.ufh.ac.za> Date: Mon, 26 May 1997 10:07:47 GMT+120 Subject: Sexing Crocidura
Hi Petros,
For sexing Crocidura you need to attempt penile extrusion. The easiest way is to anaethetize the shrew using ether. Blow ether fumes into a chamber with the shrew, as soon as it loses balance and falls over, remove it and hold it with its ventrum uppermost. Then press gently with two fingers on either side of the ano-genital opening. If it is a male, the penis will project out, if it is a female, obviously nothing will protrude.
If anaethetizing is not possible, hold the shrew firmly by the scruff of its neck, and then try and protrude the penis. The shrew will struggle!!!! This makes it quite difficult.
Good luck. Rod
Rod Baxter e-mail: baxter@zoo.ufh.ac.za
Dept of Zoology fax: 27 [0]404-22168
University of Fort Hare tel: 22164 P/Bag X1314 5700 Alice
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4) I found some references in 'The Shrew Bibliography' and thought that I will send them to you before I leave...; If you have any further literature on this topic, I would appreciate it, if you could give me the titles. Sex discrimination in live shrews is very difficult. Young Sorex species can be recognized as females by their teat spots (see ref. by Heggberget). But this is not a sure criterium. Old adults and reproductively active male shrews are easy to discriminate by their obvious large testes and maybe the difference in development of the lateral scent glands.
References from The Shrew Bibliography:
Becker, K. 1955 Ueber Art- und Geschlechtsunterschiede am Becken einheimischer Spitzmaeuse (Soricidae). Z. Saeugetierk. 20: 78-88.
Butterfield, J., J.C. Coulson, S. Wanless 1981 Studies on the distribution, food, breeding biology and relative abundance of the pygmy and common shrews (Sorex minutus and S. araneus) in upland areas of northern England. J. Zool., Lond. 195: 169-180.
Croin Michielsen, N. 1966 Intraspecific and interspecific competition in the shrews S. araneus L. and S. minutus L. Arch. Neerl. Zool. 17: 73-174.
Heggberget, T.M. 1974 Sex determination in immature Sorex araneus L. Fauna (Oslo) 27: 222-224.
Mystkowska, E.T. 1959 Cytologische Methode der Geschlechtsbestimmung bei Embryonen und das Geschlechtsverhältnis bei Fetus von Sorex araneus araneus L. Acta Theriol. 3(9): 121-140.
Rana, B.D., I. Prakash 1979 Reproductive biology and population structure of the house shrew, Suncus murinus sindensis, in Western Rajasthan. Z. Säugetierk. 44: 333-343.
Searle, J.B. 1985 Methods for determining the sex of common shrews (Sorex araneus). J. Zool., Lond. 206 (2): 279-282.
Vogel, P. 1972 Beitrag zur Fortpflanzungsbiologie der Gattungen Sorex, Neomys und Crocidura (Soricidae). Verhdl. Naturf. Ges. Basel 82(2): 165-192.
“The Shrew Bibliography” is a collection of more than 6000 references to research on the biology of the Soricidae (Insectivora, Mammalia) and small mammal ecology. More info: http://members.vienna.at/shrew/shrewbib.html
To announce your new research papers/books, please follow the instructions (separate fields with the character "#"):
Author(s)#Year#Title#Journal&Page No.#Abstract#Keywords#Address
*I* would appreciate receiving a reprint of your paper and/or a list of your publications to add to the bibliography.
Lopez-Jurado LF and Mateo JA (1996) Evidence of venom in the Canarian shrew (Crocidura canariensis): immobilizing effects on the Atlantic lizard (Gallotia atlantica). J.Zool. Lond. 239: 394-395. ____________________________
Origin and distribution of shrews, genus Crocidura, in Breton Islands JF Cosson, M Pascal & F Bioret Vie Milieu, 1996, 46:233-244
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1) From: "dac" <dac@adelphia.net> Subject: Shrew - May 1997 Date: Sat, 10 May 1997 16:14:19 -0400
We have been busy little shrews - if you've not been there recently - we have our own domain now - http://www.shrewbot.com ....... Shrew is a band of musical veterans that jam once a week or so. We play in lots of different styles, with frequent guest artists and theme pieces. What we do is record these jams, mix them down to digital stereo, cut out a couple of representative "songs" from the session, and publish these songs to the site. It is sort of the bleeding edge of music media distribution - and here we are on it! That's it for now... Shrew!
All replies to the Shrew Talk inquiries should be posted to the group. However, if you prefer to reply to someone personally, *I* would appreciate receiving a copy of the mail (Cc or Bcc) and/or a summary of the "outcome".
Reply to shrewbib@sorex.vienna.at - include the words "Shrew Talk" in the subject line.
For the present, this is also my personal e-mail. If you would like mail to go to Werner Haberl rather than to the group, DO NOT include the words "Shrew Talk" in the subject line and/or please indicate in the body of the letter that it's personal.
To be removed from the list, write to the same address and ask to be removed. ***********************************************************************
Dr. Werner Haberl Editor, SHREW TALK (http://members.vienna.at/shrew/shrewtalk.html) Hamburgerstr. 11, A-1050 Vienna, Austria
Email: shrewbib@sorex.vienna.at URL: http://members.vienna.at/shrew (The Shrew (ist's) Site)
The Shrew Bibliography (> 6000 references) (available on CD ROM) ==================================================================

This web site was created by
Dr. Werner Haberl. Address: Hamburgerstrasse 11, A-1050 Vienna, Austria.
E-mail: shrewbib@sorex.vienna.at
URL: http://members.vienna.at/shrew