Alan Tennyson | The University of Auckland (original) (raw)

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Papers by Alan Tennyson

Research paper thumbnail of A new fossil species of kiwi (Aves: Apterygidae) from the mid-Pleistocene of New Zealand

Historical Biology, Apr 23, 2021

Research paper thumbnail of A new fossil species of Procellaria (Aves: Procellariiformes) from the Pliocene of New Zealand

Papéis Avulsos de Zoologia, Jan 29, 2021

Research paper thumbnail of Pliocene fossils support a New Zealand origin for the smallest extant penguins

Journal of Paleontology, Jun 21, 2023

Research paper thumbnail of A small, narrow‐beaked albatross from the Pliocene of New Zealand demonstrates a higher past diversity in the feeding ecology of the Diomedeidae

Research paper thumbnail of Numbers of Black-browed Mollymawks (Diomedea rn. rnelanophrys) and White-capped Mollyrnawks (D. cauta steadt) at the Antipodes Islands in 1994-95 and their population trends in the New Zealand region

We present population size estimates of mouymawk species at Bollons Island in the Antipodes group... more We present population size estimates of mouymawk species at Bollons Island in the Antipodes group based on counts in 1994 and 1995. Totals of 115 pairs of Black-bmwd Mollymawk~Diomedea m mefanopbrys and about 20 pairs ofWhite-capped Mollymawks D. cautn steadi were estimated to be nesting. Based on previous counts from Bollons Island and population estimates horn other islands in the New Zealand region, we ~wnclude that numbers of D. m. melanopbtys have increased in his region, in contrast to D. m. impavida which has decreased. The few data on the population size ofD, cauta stead hint at a population increase in that taxon also.

Research paper thumbnail of Bird Extinctions and Fossil Bones from Mangere Island, Chatham Islands

Research paper thumbnail of High altitude New Zealand record for a long-tailed skua (Stercorarius longidaudus)

Research paper thumbnail of Wrecks and residents: the fossil gadfly petrels (Pterodroma spp.) of the Chatham Islands, New Zealand

Research paper thumbnail of New evidence on the life and death of Hawkins' rail (Diaphorapteryx hawkinsi): Moriori accounts recorded by Sigvard Dannefaerd and Alexander Shand

Research paper thumbnail of A response to Worthy et al. 2022. A swan-sized fossil anatid (Aves: Anatidae) from the early Miocene St Bathans Fauna of New Zealand. Zootaxa, 5168 (1), 39–50

Research paper thumbnail of Ancient crested penguin constrains timing of recruitment into seabird hotspot

Proceedings of The Royal Society B: Biological Sciences, Aug 12, 2020

Research paper thumbnail of Ancient crested penguin constrains timing of recruitment into seabird hotspot

Proceedings of The Royal Society B: Biological Sciences, Aug 12, 2020

Research paper thumbnail of Ostrich is Biologically Highly Interesting and Useful for Human Life as a Producer of Antibiotics

Animals are exposed to the changing environments. Animal evolution is a kind of the accumulated m... more Animals are exposed to the changing environments. Animal evolution is a kind of the accumulated memories of biological adaptions to the surrounding nature. Changing nature produces tremendous variations in biological kingdom.

Research paper thumbnail of A Paleocene penguin from New Zealand substantiates multiple origins of gigantism in fossil Sphenisciformes

Nature Communications, Dec 12, 2017

Research paper thumbnail of Species turnover in forest bird communities on Fiordland islands following predator eradications

New Zealand Journal of Ecology, 2021

Research paper thumbnail of Numbers of spotted shags (Stictocarbo punctatus) at breeding sites in Wellington Harbour, 2002 - 2012

Research paper thumbnail of DNA reveals the relationships of the extinct Scarlett’s Shearwater Puffinus spelaeus (Procellariiformes: Procellariidae)

Journal of ornithology, Dec 27, 2016

Research paper thumbnail of Using ancient DNA to enhance museum collections: a case study of rare kiwi (Apteryxspp.) specimens

Journal of The Royal Society of New Zealand, Sep 1, 2013

Research paper thumbnail of Pliocene fossils support a New Zealand origin for the smallest extant penguins

Zenodo (CERN European Organization for Nuclear Research), Dec 17, 2022

Research paper thumbnail of Respiratory Pores on Ostrich Struthio camelus (Aves: Struthionidae) Eggshells

Advances in Experimental Medicine and Biology, 2016

Respiratory pores are essential for the survival of the embryo within the eggshell. Distribution ... more Respiratory pores are essential for the survival of the embryo within the eggshell. Distribution patterns of such pores on ostrich (Struthio camelus) eggshells show remarkable variations in bird group. Eggshells preserved in the museum of New Zealand have long, superficial, winding grooves and ridges, with pores distributed densely in the bottom of grooves. Both the grooves and ridges that separate them are twisted. By contrast, the surfaces of eggs from farmed ostriches are mostly smooth, with only occasional, short grooves, and respiratory pores distributed more evenly. The cause of ridging and grooving of the surface of eggs from wild birds is unclear but may be due to the need for stronger shells and effects of environmental stresses. It appears that the arrangement of respiratory pores on ostrich eggshells seems to be changeable by surrounding stresses.

Research paper thumbnail of A new fossil species of kiwi (Aves: Apterygidae) from the mid-Pleistocene of New Zealand

Historical Biology, Apr 23, 2021

Research paper thumbnail of A new fossil species of Procellaria (Aves: Procellariiformes) from the Pliocene of New Zealand

Papéis Avulsos de Zoologia, Jan 29, 2021

Research paper thumbnail of Pliocene fossils support a New Zealand origin for the smallest extant penguins

Journal of Paleontology, Jun 21, 2023

Research paper thumbnail of A small, narrow‐beaked albatross from the Pliocene of New Zealand demonstrates a higher past diversity in the feeding ecology of the Diomedeidae

Research paper thumbnail of Numbers of Black-browed Mollymawks (Diomedea rn. rnelanophrys) and White-capped Mollyrnawks (D. cauta steadt) at the Antipodes Islands in 1994-95 and their population trends in the New Zealand region

We present population size estimates of mouymawk species at Bollons Island in the Antipodes group... more We present population size estimates of mouymawk species at Bollons Island in the Antipodes group based on counts in 1994 and 1995. Totals of 115 pairs of Black-bmwd Mollymawk~Diomedea m mefanopbrys and about 20 pairs ofWhite-capped Mollymawks D. cautn steadi were estimated to be nesting. Based on previous counts from Bollons Island and population estimates horn other islands in the New Zealand region, we ~wnclude that numbers of D. m. melanopbtys have increased in his region, in contrast to D. m. impavida which has decreased. The few data on the population size ofD, cauta stead hint at a population increase in that taxon also.

Research paper thumbnail of Bird Extinctions and Fossil Bones from Mangere Island, Chatham Islands

Research paper thumbnail of High altitude New Zealand record for a long-tailed skua (Stercorarius longidaudus)

Research paper thumbnail of Wrecks and residents: the fossil gadfly petrels (Pterodroma spp.) of the Chatham Islands, New Zealand

Research paper thumbnail of New evidence on the life and death of Hawkins' rail (Diaphorapteryx hawkinsi): Moriori accounts recorded by Sigvard Dannefaerd and Alexander Shand

Research paper thumbnail of A response to Worthy et al. 2022. A swan-sized fossil anatid (Aves: Anatidae) from the early Miocene St Bathans Fauna of New Zealand. Zootaxa, 5168 (1), 39–50

Research paper thumbnail of Ancient crested penguin constrains timing of recruitment into seabird hotspot

Proceedings of The Royal Society B: Biological Sciences, Aug 12, 2020

Research paper thumbnail of Ancient crested penguin constrains timing of recruitment into seabird hotspot

Proceedings of The Royal Society B: Biological Sciences, Aug 12, 2020

Research paper thumbnail of Ostrich is Biologically Highly Interesting and Useful for Human Life as a Producer of Antibiotics

Animals are exposed to the changing environments. Animal evolution is a kind of the accumulated m... more Animals are exposed to the changing environments. Animal evolution is a kind of the accumulated memories of biological adaptions to the surrounding nature. Changing nature produces tremendous variations in biological kingdom.

Research paper thumbnail of A Paleocene penguin from New Zealand substantiates multiple origins of gigantism in fossil Sphenisciformes

Nature Communications, Dec 12, 2017

Research paper thumbnail of Species turnover in forest bird communities on Fiordland islands following predator eradications

New Zealand Journal of Ecology, 2021

Research paper thumbnail of Numbers of spotted shags (Stictocarbo punctatus) at breeding sites in Wellington Harbour, 2002 - 2012

Research paper thumbnail of DNA reveals the relationships of the extinct Scarlett’s Shearwater Puffinus spelaeus (Procellariiformes: Procellariidae)

Journal of ornithology, Dec 27, 2016

Research paper thumbnail of Using ancient DNA to enhance museum collections: a case study of rare kiwi (Apteryxspp.) specimens

Journal of The Royal Society of New Zealand, Sep 1, 2013

Research paper thumbnail of Pliocene fossils support a New Zealand origin for the smallest extant penguins

Zenodo (CERN European Organization for Nuclear Research), Dec 17, 2022

Research paper thumbnail of Respiratory Pores on Ostrich Struthio camelus (Aves: Struthionidae) Eggshells

Advances in Experimental Medicine and Biology, 2016

Respiratory pores are essential for the survival of the embryo within the eggshell. Distribution ... more Respiratory pores are essential for the survival of the embryo within the eggshell. Distribution patterns of such pores on ostrich (Struthio camelus) eggshells show remarkable variations in bird group. Eggshells preserved in the museum of New Zealand have long, superficial, winding grooves and ridges, with pores distributed densely in the bottom of grooves. Both the grooves and ridges that separate them are twisted. By contrast, the surfaces of eggs from farmed ostriches are mostly smooth, with only occasional, short grooves, and respiratory pores distributed more evenly. The cause of ridging and grooving of the surface of eggs from wild birds is unclear but may be due to the need for stronger shells and effects of environmental stresses. It appears that the arrangement of respiratory pores on ostrich eggshells seems to be changeable by surrounding stresses.

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