Figure 1.
Study area and metapopulation structure.
(A) Study area of the Vistula river valley in central Poland. Optimal habitat for the natterjack toad is marked green and suboptimal habitat is marked brown. Location of the study plots is marked: A – “Brzozówka”, B – “Sadowa”, C – Kępa Kiełpińska”. (B) Metapopulation structure for no change scenario. Sizes and colours of circles indicate sizes of populations (numbers of individuals).
Table 1.
Habitat amount and landscape elements relevant for Natterjack toad characterising the four management scenarios, shown as per cent change of “no change” scenario.
Figure 2.
(A) Estimated metapopulation carrying capacities of adult individuals for all management scenarios. Estimations were based on habitat suitability and population density. (B) Metapopulation dynamics-based estimations of minimum expected adults’ abundances for all scenarios.
Table 2.
Number of small (<125), medium (≥125 and <375), and large (≥375 individuals) patches in each scenario.
Table 3.
Total preference matrix summarising results of carrying capacity sensitivity analysis.
Table 4.
Total preference matrix summarising results of metapopulation dynamics sensitivity analysis.