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The role of vicariance and dispersal on New Zealand's estuarine biodiversity: the case of Paracorophium (Crustacea: Amphipoda)
TLDR
It is suggested that sea level and landmass changes during the early Pleistocene (2 Mya) resulted in the isolation of previously contiguous populations leading to the present-day patterns.
Mitochondrial DNA (COI) analyses reveal that amphipod diversity is associated with environmental heterogeneity in deep‐sea habitats
TLDR
This study highlights the value of molecular approaches, in particular COI sequences, for quantifying and comparing diversity in under‐sampled and/or under‐studied taxa.
Abundance and diversity of epibenthic amphipods (Crustacea) from contrasting bathyal habitats
TLDR
High abundance, diversity and community composition of amphipod crustaceans relative to environmental variables on two major bathymetric features of New Zealand – the Chatham Rise and Challenger Plateau are examined, suggesting strong benthic–pelagic coupling and emphasising the importance of bentho-pelagic links in bathyal ecosystems.
Ecological Biogeography of the Terrestrial Nematodes of Victoria Land, Antarctica
TLDR
The current understanding of the environmental parameters associated with the biogeography of Antarctic nematofauna will be crucial to monitoring and possibly mitigating changes to these unique soil ecosystems.
Decoupled responses of soil bacteria and their invertebrate consumer to warming, but not freeze-thaw cycles, in the Antarctic Dry Valleys.
TLDR
It is predicted that higher occurrence of FTCs in cold ecosystems will select for large body size within soil microinvertebrates and overall reduce their abundance, and warm temperatures without FTCs could lead to divergent responses in soil bacteria and their microin Vertebrate consumers, potentially affecting energy and nutrient transfer rates in soil food webs of cold ecosystems.
Impact of diurnal freeze–thaw cycles on the soil nematode Scottnema lindsayae in Taylor Valley, Antarctica
TLDR
The results suggest that increased FTC frequency in the Dry Valleys slows S. lindsayae development, reducing reproductive success, and may take years to impact population size, which demonstrates the importance of long-term research to accurately predict the consequences of climate change on soil biota and biogeochemical cycling in the cold regions.
The Challenges of Analysing Highly Diverse Picobirnavirus Sequence Data
TLDR
Diversity within the genus Picobirnavirus and among other dsRNA virus types is investigated using a combined phylogenetic and functional (protein structure homology-modelling) approach, suggesting an enormous undiscovered diversity which contributes to the undescribed “viral dark matter” component of metagenomic studies.
Invasion, genetic variation and species identity of the calanoid copepod Sinodiaptomus valkanovi
TLDR
Nuclear DNA analysis did not provide any evidence of gene flow between them, and the inter-taxon variability of mtCOI was high, corroborating the conclusion of Ueda & Ohtsuka based on morphological characteristics that S. valkanovi and S. sarsi should be differentiated at the species level.
Nematode exclusion and recovery in experimental soil microcosms
Abstract Experimental manipulations of soil fauna are a powerful tool for assessing causal relationships between belowground biodiversity and key ecosystem properties. However, preparing soil
First report of novel assemblages and mixed infections of Giardia duodenalis in human isolates from New Zealand.
TLDR
The report of two novel assemblages and mixed infections provides insights into the genetic diversity, epidemiology and transmission dynamics of Giardia duodenalis in New Zealand.
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