2012/06/21 by Steven A. Trewick, Simon J. Morris, P. M. Johns +2 · 5 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Environmental Science · #Plant and animal studies #Insect and Arachnid Ecology and Behavior #Ecology and Vegetation Dynamics Studies
paper · doi:10.1080/00779962.2012.686318
openalex publication_date 2012/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
S. A. Trewicka, S. J. Morrisb, P. M. Johnsc, R. A. Hitchmoughd* & I. A.N. Stringerd a Ecology Group , Institute of Natural Resources, Massey University , Private Bag 11-222, Palmerston North , New Zealand b Private Bag 55037, 39 Trelissick Loop, Castle Hill Village, Christchurch , 8154 , New Zealand c Canterbury Museum , Rolleston Avenue, Christchurch , 8013 , New Zealand d Department of Conservation , PO Box 10420, Wellington , 6143 , New Zealand * E-mail: [email protected] Six New Zealand Orthoptera are considered Threatened: Sigaus homerensis is Nationally Critical; Brachaspis robustus and Sigaus “yellow” are Nationally Endangered; while Sigaus “green”, Sigaus “blue” and Hemideina thoracica with a chromosome arrangement of 2n=23/24 are Nationally Vulnerable. Forty taxa are At Risk comprising one Declining (Sigaus minutus), two Recovering (Deinacrida mahoenui, Motuweta isolata), six anostostomatids that are Relict and 31 Naturally Uncommon taxa. The remaining taxa known to occur in New Zealand comprise eight taxa that are Introduced and Naturalised, 19 that are Data Deficient and 94 taxa, including 80 species, that are Not Threatened. Factors influencing the vulnerability of threatened Orthoptera in New Zealand are noted.