Data from: Phylogenetic measures reveal eco-evolutionary drivers of biodiversity along a depth gradientDavid Eme, Marti Anderson, Elisabeth Myers, Clive Roberts & Libby Liggins
Energy and environmental stability are positively correlated with species richness along broad-scale spatial gradients in terrestrial ecosystems, so their relative importance in generating and preserving diversity cannot be readily disentangled. This study seeks to exploit the negative correlation between energy and stability along the oceanic depth gradient to better understand their relative contribution in shaping broadscale biodiversity patterns. We develop a conceptual framework by simulating speciation and extinction along energy and stability gradients to generate...
This study investigated the foraging niche of dimorphic males and females Westland petrel during the chick-rearing period. At-sea movements were recorded with GPS, behaviours and foraging behaviour were recorded with accelerometers, and trophic niche was inferred with stable isotopes (carbon, nitrogen). Altogether, these fine-scale data allowed to look at the foraging niche used by males and females.
Pioneering polyploids: the impact of whole-genome duplication on biome shifting in New Zealand Coprosma (Rubiaceae) and Veronica (Plantaginaceae)Luke Liddell, William Lee, Esther Dale, Heidi Meudt & Nick Matzke
The role of whole-genome duplication in facilitating shifts into novel biomes remains unknown. Focusing on two diverse woody plant groups in New Zealand, Coprosma (Rubiaceae) and Veronica (Plantaginaceae), we investigate how biome occupancy varies with ploidy level, and test the hypothesis that whole-genome duplication increases the rate of biome shifting. Ploidy levels and biome occupancy (forest, open, and alpine) were determined for indigenous species in both clades. The distribution of low ploidy (Coprosma: 2x, Veronica:...
In order to study evolutionary pattern and process we need to be able to accurately identify species and the evolutionary lineages from which they are derived. Determining the concordance between genetic and morphological variation of living populations, and then directly comparing extant and fossil morphological data, provides a robust approach for improving our identification of lineages through time. We investigate genetic and shell morphological variation in extant species of Penion marine snails from New Zealand,...
Temporal and spatial differences in the post-breeding behaviour of a ubiquitous Southern Hemisphere seabird, the common diving petrelAymeric Fromant, Charles-Andre Bost, Paco Bustamante, Alice Carravieri, Yves Cherel, Yonina Eizenberg, Colin Miskelly, John Arnould & Karine Delord
The non-breeding period plays a major role in seabird survival and population dynamics. However, our understanding of the migratory behaviour, moulting and feeding strategies of non-breeding seabirds is still very limited, especially for small-sized species. The present study investigated the post-breeding behaviour of three distant populations (Kerguelen Archipelago, south-eastern Australia, New Zealand) of the common diving petrel (Pelecanoides urinatrix), an abundant, widely distributed zooplanktivorous seabird breeding throughout the southern Atlantic, Indian and Pacific oceans. The...
New Zealand is a globally significant hotspot for seabird diversity, but the sparse fossil record for most seabird lineages has impeded our understanding of how and when this hotspot developed. Here, we describe multiple exceptionally well-preserved specimens of a new species of penguin from tightly dated (3.36–3.06 Ma) Pliocene deposits in New Zealand. Bayesian and parsimony analyses place Eudyptes atatu sp. nov. as the sister species to all extant and recently extinct members of the...
Little Spotted Kiwi (LSK; Apteryx owenii) have the lowest genetic diversity of five currently recognised kiwi species apparently due to a bottleneck when at most five individuals were translocated to Kapiti Island in 1912. Ancient DNA analyses show that LSK also had the lowest genetic diversity of kiwi species historically, possibly due to population bottlenecks during Pleistocene glaciation. We compare genetic diversity between LSK from Kapiti Island (extant), D’Urville Island (extinct) and the South Island...
Museum of New Zealand Te Papa Tongarewa7
Centre d'Etudes Biologiques de Chizé2
LIttoral, ENvironment and Societies1
University of Otago1
University of South Carolina Aiken1
University of Auckland1
French Research Institute for Exploitation of the Sea1