Alien Invasion Predictions

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Questions and Answers

¿Cuál es el enfoque alternativo para predecir la propagación de especies invasoras?

  • Modelos de nicho ecológico
  • Modelos de coincidencia climática
  • Ninguna de las anteriores
  • Gradients de similitud biótica (correct)

¿Qué enfoque predice mejor los patrones de propagación de especies invasoras?

  • Ninguna de las anteriores
  • Modelos de coincidencia climática
  • Resistencia ambiental (correct)

¿Qué factores influyen en el riesgo de invasión?

  • Gradients de similitud biótica
  • Todas las anteriores (correct)
  • Resistencia ambiental
  • Proximidad a puntos calientes existentes

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Study Notes

  • Predicting the spread of alien species is an urgent challenge.
  • Most predictions use models of ecological niche but may have limited accuracy.
  • An alternative approach is based on environmental resistance of the landscape.
  • This approach uses gradients of biotic similarity to predict likely routes of spread.
  • Environmental resistance predicts patterns of spread better than null or climate matching models.
  • The approach can be used to simulate future spread and reveal regional differences in invasion risk.
  • Invasion risk is shaped by proximity to existing hotspots and gradients in environmental resistance.
  • Environmental resistance provides a complementary approach for predicting invasion risk.
  • The approach can be rapidly deployed even when information on niche or identity of invaders is unknown.
  • The study focused on the global alien avifauna.

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