12 datasets found

Authors: Green, Peter Spurr, Eric B

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  • NZGBS 2018 | participation trends

    This report summarises spatial coverage and trends in participation in the NZ Garden Bird Survey (NZGBS) 2007 to 2018 based on garden-survey records only. It then explores the...
  • NZGBS 2017 | Trend estimates

    Percent change in counts for 14 garden bird counts for the 10 years (2007-18) at four spatial scales: national, regional (R), urban-rural (U) and area unit (A) as defined by...
  • NZGBS 2018 | Trend estimates

    Percent change in counts for 14 garden bird counts for the last 10 years (2008-18) and 5 years (2013-18) at four spatial scales: national, regional (R), territorial authority...
  • State of NZ Garden Birds 2018 | Reports

    Birds act as 'backyard barometers' - telling us about the health of the environment we live in. They are signalling significant changes in our environment over the last 10 and...
  • State of NZ Garden Birds 2017 | Reports

    Birds act as 'backyard barometers' - telling us about the health of the environment we live in. They are signalling significant changes in our environment over the last 11...
  • Optimising survey effort to monitor environmental variables

    A new statistical power analysis R package simr informs environmental monitoring design within New Zealand's main kiwifruit growing region (Bay of Plenty). The pilot data for 13...
  • NZGBS 2018 | Barplots | Urban Rural

    Changes in NZ Garden Bird counts for 14 common garden birds for urban rural areas for the last 10 years (2008 to 2018) and last 5 years (2013 to 2018). Barplots are only...
  • NZGBS 2018 | Barplots | Maps | By species

    Changes in garden bird counts for 14 common birds at the national, regional and territorial authority scales for the last 10 years (2008 to 2018) and last 5 years (2013 to...
  • NZGBS 2017 | Barplots | By location

    Changes in NZ Garden Bird counts for 14 common garden birds at the national, regional and urban area (towns and rural areas) scales for the period 2007 to 2017. Spatial...
  • NZGBS 2017 | Barplots | Maps | By species

    Changes in NZ Garden Bird counts for 14 common garden birds at the national and regional scales for the period 2007 to 2017.
  • NZGBS 2017 | trend analysis methods

    This report summarises the protocols for producing the State of NZ Garden Birds 2017 | Te Āhua o ngā Manu o te Kāri i Aotearoa, which are as follows: (1) Securing the legacy of...
  • NZGBS 2018 | Species maps for regions

    Individual maps for each species in each region showing percent change in garden bird counts for two periods: last 10 years (2008-18) and last 5 years (2013-18). Maps show...
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