Hi Stephen & John,
Here is the scrubwren split:
Norman J.A., Christidis L. & Schodde R., in press. Ecological and evolutionary
diversification in the Australo-Papuan scrubwrens (Sericornis) and
mouse-warblers (Crateroscelis), with a revision of the subfamily
Sericornithinae (Aves: Passeriformes: Acanthizidae). Org. Divers. Evol.
Abstract
Understanding how the complex geotectonic and climatic history of the
Australo-Papuan region has promoted the ecological and evolutionary
diversification of its avifauna remains a challenge. Outstanding questions
relate to the nature and timing of biogeographical connections between
Australia and the emerging island of New Guinea and the mechanisms by which
distinctive altitudinal replacement sequences have evolved amongst congeneric
species in montane New Guinea. Here, we combine analyses of phylogenetic and
eco-morphological data to investigate ecological and evolutionary patterns of
diversification in the largely mesic-adapted Australo-Papuan scrubwrens
(Sericornis) and mouse-warblers (Crateroscelis). We find evidence of ecological
convergence and present a revised taxonomic and systematic treatment of the
subfamily integrating information from new (ND2) and existing molecular
phylogenetic reconstructions. Biogeographical connections indicate at least
three phases of faunal interchange between Australia and New Guinea commencing
in the mid to late Miocene. We also find little support for the proposed time
dependency of ecological sorting mechanisms linked to divergence in foraging
niche amongst altitudinal replacements. Instead, physiological adaptations to
hypoxia and increased thermal efficiency at higher altitudes may better account
for observed patterns of diversification in montane New Guinea. Indirect
support for this hypothesis is derived from molecular clock calibrations that
indicate a pulse of diversification across the Miocene-Pliocene boundary
coincident with a phase of rapid mountain uplift. Simple ecological and
climatic models appear inadequate for explaining observed patterns and
mechanisms of diversification in the New Guinean montane avifauna. Further
insights will require multidisciplinary research integrating geotectonic,
palaeoclimatic, genetic, ecological and physiological approaches.
Regards from Kaziranga
Phil Gregory
<>
ornithological writer/tour leader/tour facilitator
Field Guides / Sicklebill Safaris / Cassowary House / Cassowary Tours
PO Box 387
Kuranda
QLD 4881
Australia
Ph: +61 7 40 937 318
Email: <>
Website1: http://www.sicklebillsafaris.com <http://www.sicklebillsafaris.com/>
OR www.birder.travel <http://www.birder.travel/>
Website 2: http://www.cassowary-house.com.au
<http://www.cassowary-house.com.au/>
Website 3: http://www.cassowarytours.com.au <http://www.cassowarytours.com.au/>
> On 23 Apr 2018, at 10:27 AM, John Tongue <> wrote:
>
> Dopey Autocorrect - Scrubwren, not Scrubwomen!!
>
>> On 22 Apr 2018, at 2:38 PM, Phil Gregory <> wrote:
>>
>> Since I got to Kolkata from Ghana, two new potential additions derived from
>> splits:
>> White-bellied Whipbird (Psophodes leucogaster) of South Australia from
>> Western Whipbird, the old Mallee Whipbird of Schodde & Mason
>> Spotted Scrubwren (Sericronis maculatus) of primarily Western Australia from
>> White-browed Scrubwren, long expected.
>> Even more reason for a trip to South Australia now, I am slipping behind
>> with my needed species again.
>> Phil Gregory
>> <>
>> ornithological writer/tour leader/tour facilitator
>> Field Guides / Sicklebill Safaris / Cassowary House / Cassowary Tours
>> PO Box 387
>> Kuranda
>> QLD 4881
>> Australia
>>
>> Ph: +61 7 40 937 318
>>
>> Email: <>
>> Website1: http://www.sicklebillsafaris.com
>> <http://www.sicklebillsafaris.com/> OR www.birder.travel
>> <http://www.birder.travel/>
>> Website 2: http://www.cassowary-house.com.au
>> <http://www.cassowary-house.com.au/>
>> Website 3: http://www.cassowarytours.com.au
>> <http://www.cassowarytours.com.au/>
>>
>>
>>
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