Patagona gigas


To elaborate our model we produced four pseudoreplicas of the only point locality we found for this species in the country in Cotinga 10 (1998). The new points were located at approximate 1.5-2 km south, west, north and east from the original locality.

The habitat suitability model generated in Maxent showed a small area suitable in climatic terms for this species in central Boyaca in the central-northern Eastern Andes. Areas not near Ipiales were excluded from the potential distribution map of this hummingbird.

This species has a big geographical range that has been estimated in 3,690,000 km2 and Colombia represents the outskirts of its distribution to the north. It is not known if it is present in the country seasonally and its general ecology in the country is poorly known. It needs further research to know better is distribution in Colombia and ecology, equally it needs some attention in conservation if it is intended to be preserved in the country.


Regularized training gain is 6.416, training AUC is 1.000, unregularized training gain is 7.062.

Algorithm converged after 200 iterations (1 seconds).

The follow settings were used during the run:

5 presence records used for training.

10005 points used to determine the Maxent distribution (background points and presence points).

Environmental layers used (all continuous): bio10co bio11co bio12co bio13co bio14co bio15co bio16co bio17co bio18co bio19co bio1co bio2co bio3co bio4co bio5co bio6co bio7co bio8co bio9co

Regularization values: linear/quadratic/product: 1.000, categorical: 0.575, threshold: 1.950, hinge: 0.500

Feature types used: linear

responsecurves: true

jackknife: true

maximumiterations: 2000

'Equal Training Sensitivity and Specificity' and 'Equate Entropy of Thresholded and Original Distributions' thresholds and omission rates:

45.354-10.713-Cumulative threshold

0.542-0.161-Logistic threshold

0.000-0.002-Fractional predicted area

0.000-0.000-Training omission rate