Hi Carl,
The point is not 'extinct' versus 'not extinct' (as in the Schrödinger's
bird) it is actually 'species' versus 'not species'. E.g., if you split
Kokako into NI and SI Kokako then you have an extinct species more than if
you lump Kokako as one species. In other words, the more you split the
higher will be the number of both living and extinct species.
Cheers,
Nikolas
On 10/05/14 10:19 PM, "Carl Clifford" <> wrote:
>It is interesting to note the variation in the number of extinct species.
>Surely a species is extinct or not extinct. Unless, of course, there is
>such a thing as Schrodinger's birds.
>
>Carl Clifford
>
>> On 10 May 2014, at 18:33, Phil & Sue Gregory
>><> wrote:
>>
>> The illustrated HBW/ BirdLife Illustrated Checklist is due out shortly
>>as Dave Torr advised, with a pre-publication offer of 145 euros, but
>>remember this is Vol 1 Non-Passerines only, Vol 2 Passerines is
>>scheduled for 2016 so we'll have to wait till then to find out if
>>BirdLife accepts the split of Striated Grassrwen into 4- presumably not
>>if they are going only by morphology, but there seems to be a giant
>>splitfest imminent with their system, with bits and pieces dribbling out!
>> Meantime the Internet Bird Collection gives you access to an amazing
>>range of videos, photos and sound cuts covering something like 90% of
>>world species, and with access to all 16 volumes of HBW that are being
>>updated (not sure if recently published vol 17 is there yet). Costs
>>around 30 euros per annum with sometimes a 10 euro initial joining fee
>>which they seem to waive at times. Highly recommended.
>>
>> Meanwhile Peter Kovalik on Birdforum posted this invaluable comparison
>>of the major checklists:
>> HBW and BirdLife International Checklist Vol 1: Non-passerines:
>>
>> Product details of Volume 1
>> 35 orders € 111 families € 1,009 genera € 4,372 extant species € 99
>>extinct species
>>
>> IOC 4.2:
>> 39 orders € 108 families € 976 genera € 4,228 extant species € 97
>>extinct species
>>
>> Clements 6.8:
>> 33 orders € 107 families € 931 genera € 4102 extant species € 57
>>extinct species
>>
>> Howard & Moore 4:
>> 35 orders € 100 families € 983 genera € 4016 extant species € 56 (49 +
>>7?) extinct species
>>
>> TiF 2.92:
>> 44 orders € 110 families € 1007 genera € 4324 extant and extinct species
>>
>> BirdLife 6.1:
>> - orders € 98 families € 933 genera € 4023 extant species € 88 extinct
>>species
>> Phil Gregory
>>
>> Website 1: Http://www.sicklebillsafaris.com
>> Website 2: Http://www.cassowary-house.com.au
>>
>> _______________________________________________
>> Birding-Aus mailing list
>>
>> To change settings or unsubscribe visit:
>> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
>
>_______________________________________________
>Birding-Aus mailing list
>
>To change settings or unsubscribe visit:
>http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
_______________________________________________
Birding-Aus mailing list
To change settings or unsubscribe visit:
http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
|
