LAKE DWELLING TRIULADS
SHETLAND 1s.
.FAIR Is.
*@ORKNEY
IS.
3
FIQ. 1. The arena in black a m thoae in which the main work haa been done: stippled ~ s ~ e p l
thoee for whioh samples or reports have been provided by other workere. Ielands
mentioned in the text are ale0 shown.
common species with emphasis on numerical aspects, have provided information on the mechanism of population regulation which is very
relevant t o the main objective of this work.
From these various approaohes it has been possible t o f m u l a t e a
hypothesis to account for the distribution and abuhdance of lakedwelling triclads in Britain, and this seems a suitable point at which to
report progress. The adequacy of the hypothesis cannot finally be
judged until the third stage of this programme, the testing of the hypothesis by laboratory and field experiments, has been completed.
.
SHETLAND 1s.
.FAIR Is.
*@ORKNEY
IS.
3
FIQ. 1. The arena in black a m thoae in which the main work haa been done: stippled ~ s ~ e p l
thoee for whioh samples or reports have been provided by other workere. Ielands
mentioned in the text are ale0 shown.
common species with emphasis on numerical aspects, have provided information on the mechanism of population regulation which is very
relevant t o the main objective of this work.
From these various approaohes it has been possible t o f m u l a t e a
hypothesis to account for the distribution and abuhdance of lakedwelling triclads in Britain, and this seems a suitable point at which to
report progress. The adequacy of the hypothesis cannot finally be
judged until the third stage of this programme, the testing of the hypothesis by laboratory and field experiments, has been completed.
.