The present work aims at separating the influence of biotic and climatic …

• Intrinsic and climatic factors in North-American animal population dynamics
• Background
• Results
• Discussion
• Conclusions
• Methods
• References
• Table 1
• Table 2
• Table 3
• Figures

Biology Articles » Zoology » Intrinsic and climatic factors in North-American animal population dynamics » Figures

Intrinsic and climatic factors in North-American animal population dynamics

Figure 1

Principal component (PC) analysis of the data set composed of the eight longest fur-counts and the Ni??o-3 sea surface temperatures (SSTs).

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Figure 2

Correlation circle corresponding to the PC analysis of the data set that includes the same eight fur-counts as in Figure 1.

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Figure 3

Projection of the {(fur-counts) + ENSO} data set on axes 1 and 2 of the PC analysis; see legend inside the figure.

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Figure 4

Changes in the solution behavior of a predator???prey model subject to environmental pressures and given by system (2).