scholarly journals Analyses of phenotypic differentiations among South Georgian Diving Petrel (Pelecanoides georgicus) populations reveal an undescribed and highly endangered species from New Zealand

2020 ◽  
Author(s):  
Johannes Fischer ◽  
I Debski ◽  
CM Miskelly ◽  
CA Bost ◽  
A Fromant ◽  
...  
Keyword(s):  
New Zealand ◽  
Principal Component ◽  
Breeding Habitat ◽  
Species Status ◽  
Breeding Colony ◽  
Creative Commons ◽  
Zealand Population ◽  
Species Being ◽  
Open Access Article ◽  
Diving Petrel

© 2018 Fischer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Unresolved taxonomy of threatened species is problematic for conservation as the field relies on species being distinct taxonomic units. Differences in breeding habitat and results from a preliminary molecular analysis indicated that the New Zealand population of the South Georgian Diving Petrel (Pelecanoides georgicus) was a distinct, yet undescribed, species. We measured 11 biometric characters and scored eight plumage characters in 143 live birds and 64 study skins originating from most populations of P. georgicus, to assess their taxonomic relationships. We analysed differences with principal component analyses (PCA), factorial ANOVAs, and Kruskal-Wallis rank sum tests. Results show that individuals from New Zealand differ significantly from P. georgicus from all other populations as following: 1) longer wings, 2) longer outer tail feathers, 3) deeper bills, 4) longer heads, 5) longer tarsi, 6) limited collar extent, 7) greater extent of contrasting scapulars, 8) larger contrasting markings on the secondaries, 9) paler ear coverts, 10) paler collars, and 11) paler flanks. Furthermore, we used a species delimitation test with quantitative phenotypic criteria; results reveal that the New Zealand population of P. georgicus indeed merits species status. We hereby name this new species Pelecanoides whenuahouensis sp. nov. Due to severe reductions in its range and the very low number of remaining birds (~150 individuals limited to a single breeding colony on Codfish Island/Whenua Hou) the species warrants listing as ‘Critically Endangered’. An abstract in the Māori language/Te Reo Māori can be found in S1 File.

scholarly journals Analyses of phenotypic differentiations among South Georgian Diving Petrel (Pelecanoides georgicus) populations reveal an undescribed and highly endangered species from New Zealand

2020 ◽  
Author(s):  
Johannes Fischer ◽  
I Debski ◽  
CM Miskelly ◽  
CA Bost ◽  
A Fromant ◽  
...  
Keyword(s):  
New Zealand ◽  
Principal Component ◽  
Breeding Habitat ◽  
Species Status ◽  
Breeding Colony ◽  
Creative Commons ◽  
Zealand Population ◽  
Species Being ◽  
Open Access Article ◽  
Diving Petrel

© 2018 Fischer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Unresolved taxonomy of threatened species is problematic for conservation as the field relies on species being distinct taxonomic units. Differences in breeding habitat and results from a preliminary molecular analysis indicated that the New Zealand population of the South Georgian Diving Petrel (Pelecanoides georgicus) was a distinct, yet undescribed, species. We measured 11 biometric characters and scored eight plumage characters in 143 live birds and 64 study skins originating from most populations of P. georgicus, to assess their taxonomic relationships. We analysed differences with principal component analyses (PCA), factorial ANOVAs, and Kruskal-Wallis rank sum tests. Results show that individuals from New Zealand differ significantly from P. georgicus from all other populations as following: 1) longer wings, 2) longer outer tail feathers, 3) deeper bills, 4) longer heads, 5) longer tarsi, 6) limited collar extent, 7) greater extent of contrasting scapulars, 8) larger contrasting markings on the secondaries, 9) paler ear coverts, 10) paler collars, and 11) paler flanks. Furthermore, we used a species delimitation test with quantitative phenotypic criteria; results reveal that the New Zealand population of P. georgicus indeed merits species status. We hereby name this new species Pelecanoides whenuahouensis sp. nov. Due to severe reductions in its range and the very low number of remaining birds (~150 individuals limited to a single breeding colony on Codfish Island/Whenua Hou) the species warrants listing as ‘Critically Endangered’. An abstract in the Māori language/Te Reo Māori can be found in S1 File.

scholarly journals Seismic observations of crevasse growth following rain-induced glacier acceleration, Haupapa/Tasman Glacier, New Zealand

2021 ◽  
Author(s):  
S Taylor-Offord ◽  
Huw Horgan ◽  
John Townend ◽  
JP Winberry
Keyword(s):  
New Zealand ◽  
Rain Rate ◽  
Ice Sheets ◽  
Seismicity Rate ◽  
Creative Commons ◽  
Acceleration Rate ◽  
Order Of Magnitude ◽  
Strain Rate Field ◽  
Magnitude Increase ◽  
Open Access Article

Copyright © The Author(s) 2019 This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.. Changing rates of water input can affect both the flow of glaciers and ice sheets and their propensity to crevasse. Here we examine geodetic and seismic observations during two substantial (10-18-times background velocity) rain-induced glacier accelerations at Haupapa/Tasman Glacier, New Zealand. Changes in rain rate result in glacier acceleration and associated uplift, which propagate down-glacier. This pattern of acceleration results in a change to the strain rate field, which correlates with an order of magnitude increase in the apparent seismicity rate and an overall down-glacier migration in located seismicity. After each acceleration event the apparent seismicity rate decreases to below the pre-acceleration rate for 3 days. This suggests that seismic events associated with surface crevasse growth occur early during phases of glacier acceleration due to elevated extensional stresses, and then do not occur again until stresses recover.

scholarly journals Seismic observations of crevasse growth following rain-induced glacier acceleration, Haupapa/Tasman Glacier, New Zealand

2021 ◽  
Author(s):  
S Taylor-Offord ◽  
Huw Horgan ◽  
John Townend ◽  
JP Winberry
Keyword(s):  
New Zealand ◽  
Rain Rate ◽  
Ice Sheets ◽  
Seismicity Rate ◽  
Creative Commons ◽  
Acceleration Rate ◽  
Order Of Magnitude ◽  
Strain Rate Field ◽  
Magnitude Increase ◽  
Open Access Article

Copyright © The Author(s) 2019 This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.. Changing rates of water input can affect both the flow of glaciers and ice sheets and their propensity to crevasse. Here we examine geodetic and seismic observations during two substantial (10-18-times background velocity) rain-induced glacier accelerations at Haupapa/Tasman Glacier, New Zealand. Changes in rain rate result in glacier acceleration and associated uplift, which propagate down-glacier. This pattern of acceleration results in a change to the strain rate field, which correlates with an order of magnitude increase in the apparent seismicity rate and an overall down-glacier migration in located seismicity. After each acceleration event the apparent seismicity rate decreases to below the pre-acceleration rate for 3 days. This suggests that seismic events associated with surface crevasse growth occur early during phases of glacier acceleration due to elevated extensional stresses, and then do not occur again until stresses recover.

Senecio lautus complex in Australia. I. Taxonomic considerations and discussion of some of the related taxa from New Zealand

1964 ◽  
Vol 12 (2) ◽  
pp. 282 ◽  
Author(s):  
SI Ali
Keyword(s):  
New Zealand ◽  
Zealand Population ◽  
The Status ◽  
First Time

Reasons for the retention of the name Senecio lautus Forst. f. ex Willd. for both New Zealand and Australian forms are advanced. It is concluded that the New Zealand population should be given the status of a subspecies. Synonymy of S. lautus subsp. lautus and typification of various names involved are discussed. S. glaucophyllus subsp. discoideus (T. Kirk) Ornd. is reported for the first time from Tasmania.

scholarly journals Trends and predictors of rehospitalisation following an acute coronary syndrome: report from the Australian and New Zealand population of the Global Registry of Acute Coronary Events (GRACE)

Heart ◽  
2012 ◽  
Vol 98 (23) ◽  
pp. 1728-1731 ◽  
Author(s):  
Prashanthi V Sangu ◽  
Isuru Ranasinghe ◽  
Bernadette Aliprandi Costa ◽  
Gerard Devlin ◽  
John Elliot ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
New Zealand ◽  
Coronary Syndrome ◽  
Zealand Population ◽  
Coronary Events ◽  
Global Registry ◽  
Syndrome Report

scholarly journals Cetacean records along a coastal-offshore gradient in the Vitória-Trindade Chain, western South Atlantic Ocean

2014 ◽  
Vol 74 (1) ◽  
pp. 137-144 ◽  
Author(s):  
LL Wedekin ◽  
MR Rossi-Santos ◽  
C Baracho ◽  
AL Cypriano-Souza ◽  
PC Simões-Lopes
Keyword(s):  
Humpback Whale ◽  
South Atlantic ◽  
Breeding Habitat ◽  
Humpback Whales ◽  
Balaenoptera Physalus ◽  
Fin Whale ◽  
Antarctic Minke Whale ◽  
Trindade Island ◽  
The Antarctic ◽  
Species Being

Oceanic waters are difficult to assess, and there are many gaps in knowledge regarding cetacean occurrence. To fill some of these gaps, this article provides important cetacean records obtained in the winter of 2010 during a dedicated expedition to collect visual and acoustic information in the Vitória-Trindade seamounts. We observed 19 groups of cetaceans along a 1300-km search trajectory, with six species being identified: the humpback whale (Megaptera novaeangliae, N = 9 groups), the fin whale (Balaenoptera physalus, N = 1), the Antarctic minke whale (Balaenoptera bonaerensis, N = 1), the rough-toothed dolphin (Steno bredanensis, N = 1), the bottlenose dolphin (Tursiops truncatus, N = 2), and the killer whale (Orcinus orca, N = 1). Most humpback whale groups (N = 7; 78%) were observed in the Vitória-Trindade seamounts, especially the mounts close to the Abrolhos Bank. Only one lone humpback whale was observed near Trindade Island after a search effort encompassing more than 520 km. From a total of 28 acoustic stations, humpback whale songs were only detected near the seamounts close to the Abrolhos Bank, where most groups of this species were visually detected (including a competitive group and groups with calves). The presence of humpback whales at the Trindade Island and surroundings is most likely occasional, with few sightings and low density. Finally, we observed a significant number of humpback whales along the seamounts close to the Abrolhos Bank, which may function as a breeding habitat for this species. We also added important records regarding the occurrence of cetaceans in these mounts and in the Western South Atlantic, including the endangered fin whale.

New Zealand population data at five VNTR loci: validation as databases for forensic identity testing

1996 ◽  
Vol 36 (2) ◽  
pp. 109-117 ◽  
Author(s):  
J.F. Hamilton ◽  
L. Starling ◽  
S.J. Cordiner ◽  
D.L. Monahan ◽  
J.S. Buckleton ◽  
...  
Keyword(s):  
New Zealand ◽  
Population Data ◽  
Identity Testing ◽  
Zealand Population
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