Ecological Archives A021-112-A1

Arco J. van Strien, Chris A. M. van Swaay, and Marc Kéry. 2011. Metapopulation dynamics in the butterfly Hipparchia semele changed decades before occupancy declined in The Netherlands. Ecological Applications 21:2510–2520.

Appendix A. Figures showing number of detection/nondetection observations per year at all 566 5 × 5 km sites within the Dutch range of Hipparchia semele derived from single-records data, derived from short daily species lists, and derived from comprehensive daily species lists.

FigA1
 
   FIG. A1. Number of detection/nondetection observations per year at all 566 5 × 5 km sites within the Dutch range of Hipparchia semele derived from single-records data. White bars represent first observations and black bars observations from replicate visits. White bars thereby also represent the number of sites surveyed annually.

 

FigA2
 
   FIG. A2. Number of detection/nondetection observations per year at all 566 5 × 5 km sites within the Dutch range of Hipparchia semele derived from short daily species lists. White bars represent first observations and black bars observations from replicate visits. White bars thereby also represent the number of sites surveyed annually.

 

FigA3
 

   FIG. A3. Number of detection/nondetection observations per year at all 566 5 × 5 km sites within the Dutch range of Hipparchia semele derived from comprehensive daily species lists. White bars represent first observations and black bars observations from replicate visits. White bars thereby also represent the number of sites surveyed annually.


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