Nick Isaac Nick Isaac Biological Records Centre


НазваNick Isaac Nick Isaac Biological Records Centre
Дата конвертації27.04.2013
Розмір445 b.
ТипПрезентации


Nick Isaac

  • Nick Isaac

  • Biological Records Centre

  • Centre for Ecology & Hydrology


Nick Isaac

  • Nick Isaac

  • Biological Records Centre

  • Centre for Ecology & Hydrology



Is biological recording fit for purpose?

  • Is biological recording fit for purpose?



What is the purpose?

  • What is the purpose?

    • Describing species’ distributions
    • Detecting and attributing change over time
    • Identifying novelties


Biological records data

  • Biological records data



Published Atlases

  • Published Atlases



Published Atlases

  • Published Atlases



Stock & change in distribution

  • Stock & change in distribution



Repeat atlases: plants & birds, butterflies

  • Repeat atlases: plants & birds, butterflies



Biodiversity change using atlases

  • Biodiversity change using atlases



Where are we now?

  • Where are we now?



Detecting and attributing change

  • Detecting and attributing change



Past, present and future

  • Past, present and future



Talk outline

  • Talk outline



Recording intensity varies among taxa

  • Recording intensity varies among taxa





Recording intensity has increased over time

  • Recording intensity has increased over time



Telfer’s Change Index

  • Telfer’s Change Index



Ball, S, Morris, R, Rotheray, G, & Watt, K (2011). Atlas of the Hoverflies of Great Britain (Diptera, Syrphidae).

  • Ball, S, Morris, R, Rotheray, G, & Watt, K (2011). Atlas of the Hoverflies of Great Britain (Diptera, Syrphidae).



Most lists are incomplete

  • Most lists are incomplete



Lists lengths are not constant over time

  • Lists lengths are not constant over time



Mixed model

  • Mixed model



Most records come from a few recorders

  • Most records come from a few recorders



Spatial pattern of recording behaviour

  • Spatial pattern of recording behaviour



Hill’s Frescalo method

  • Hill’s Frescalo method



Hill’s Frescalo method

  • Hill’s Frescalo method



Hill’s Frescalo method

  • Hill’s Frescalo method



Occupancy modelling: a panacea?

  • Occupancy modelling: a panacea?



Talk outline

  • Talk outline



How can we estimate trends?

  • How can we estimate trends?



Simulations

  • Simulations



Simulation overview

  • Simulation overview



Simulation patterns of recording

  • Simulation patterns of recording























Simulations: Conclusions

  • Simulations: Conclusions



Talk outline

  • Talk outline



Odonata trends 1970-2011

  • Odonata trends 1970-2011



Odonata trends: winners

  • Odonata trends: winners



Odonata trends: losers

  • Odonata trends: losers



Odonata Indicator

  • Odonata Indicator



Biological Recording for the 21st Century

  • Biological Recording for the 21st Century



Acknowledgments

  • Acknowledgments

  • Tom August

  • Colin Harrower

  • David Roy, Helen Roy, Michael Pocock, Gary Powney, Chris Preston

  • Mark Hill

  • Arco van Strien



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