Gallery Links
Users Online
· Guests Online: 8

· Members Online: 0

· Total Members: 4,945
· Newest Member: millenin
Forum Threads
Newest Threads
· Unknown Stratiomyida...
· Milichiidae?->Chloro...
· Heleomyzidae ?
· Ceratopogonidae (Ton...
· Bibionidae: Bibio re...
Hottest Threads
No Threads created
Theme Switcher
Switch to:
Last Seen Users
· Paul Beuk13 weeks
· JWV27 weeks
· Nosferatumyia38 weeks
· daveb2138 weeks
· guplox38 weeks
· ESant38 weeks
· Jan Maca38 weeks
· libor38 weeks
· Reimund Ley38 weeks
· runetk38 weeks
Latest Photo Additions

Chyliza extenuata (f...

Chyliza extenuata (f...

Tabanus punctifer (f...

Xanthogramma laetum ...

Xanthogramma laetum ...

Xanthogramma laetum ...

Leptometopa latipes ...

Hybomitra autumnalis...

Gymnosoma dolycoridi...

Paratrixa polonica (2)
More Information about: rank
Term rank
Explanation Position in a taxonomic hierarchy.

Most people still conceive different types of biological taxa and place them in ranks: some taxa are species, others are genera, while others are families. Linnaeus gave us his ranks in 1731. Although biological theory has changed since Linnaeus' time, the vast majority of biologists still assign Linnaean ranks to taxa, even though the practice is at odds with evolutionary theory and even though it causes a number of practical problems. Some authors abandon Linnaean ranks and propose alternative methods for displaying the hierarchical relations of taxa.
Whatever the view on this it must be remembered that ranking is a subjective decision. This explains why taxa may be ranked differently by different authors.
Links: http://en.wikiped...zoology%29, following the taxa link to related topics.
Category Taxonomy
Submitted by Robert Nash
Date Added/
Modified		 10.10.06
Comments
#1 | Robert Nash on 29 March 2007 12:24:43
Ranking at species relates to the "species problem" discussed at
http://en.wikiped...es_Problem Similar philosophical arguments (nominalism, Kant etc.) apply at higher ranks.You can contribute to the argument Pfftvia the talk page.Please do
Post Comment
Please Login to Post a Comment.
Date and time
21 November 2024 12:28
Login
Username

Password



Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
· Voltinism in Chaoborus
· Vitaliy Nikolaevich ...
· Mating behaviour and...
· Oviposition into the...
· African Invertebrates
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download

Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

pensae
17.08.23 15:23
Aneomochtherus

pjt
17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

pjt
17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

Tony Irwin
17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

pjt
16.08.23 08:37
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

Gordon
23.02.23 21:29
Has anyone used the Leica DM500, any comments.

Paul Beuk
27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

Jan Willem
19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

Zeegers
09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

lisharris
07.10.22 11:55
Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

Render time: 0.23 seconds | 190,908,586 unique visits