Crypturellus kerriae


There is one specimen in BioMap (Cat. No. B41441) from El Real (Antioquia) deposited in the NMNH identified as C. kerriae that must be an erroneous identification. In the NMNH on-line database this specimen is identified as Crypturellus boucardi, as it was possibly originally identified in BioMap; present in Central America. The cataloguer in BioMap (or later J.V.) possibly assumed that most likely this specimen must correspond to C. kerriae by mistake. However, revising in more detail the databases appears that there are four more specimens collected from El Real identified as C. soui, one of them collected the same date as the specimen NMNH B41441 (12/March/1948). Therefore, most likely the specimen NMNH B41441 is an individual of C. soui. Nevertheless, this needs confirmation. This locality was deleted from the dataset to produce the potential distribution model of C. kerriae.

The habitat suitability model generated in Maxent showed areas that are suitable in climatic terms for this species in some areas in the base of the southern and northeastern Central Andes, the mid Magdalena valley, the base of the East Andes and east of the most southern portion of the Andes in Colombia. It is well known these areas are not occupied by this species and they were excluded from the potential distribution map of the species.

Assuming that the distribution of the species may have filled the complete climatic model generated, its distribution today in remnants of forest is potentially about 14,151 km2, which corresponds to a loss of 37 % of its potential original distribution due to deforestation. Furthermore, if we restrict its distribution just to areas north and east of the Baudo river its distribution today in remnants of forest is about 11,820 km2, which corresponds to a loss of 35 % of its potential original distribution due to deforestation.

This species is almost-endemic to Colombia and Panama and has been catalogued as vulnerable VU by the IUCN (BirdLife International, 2015). They have estimated its distribution to be approximately 6,200 km2, restricting it in Colombia to west Choco. Nevertheless, the distribution and ecology of this species are extremely unknown and it is necessary to conduct surveys and studies to clarify better its distribution and population size.


Regularized training gain is 2.546, training AUC is 0.992, unregularized training gain is 3.256.

Algorithm converged after 240 iterations (1 seconds).

The follow settings were used during the run:

3 presence records used for training.

10003 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: 0.605, threshold: 1.970, 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:


50.667-15.765-Cumulative threshold

0.619-0.123-Logistic threshold

0.011-0.078-Fractional predicted area

0-0-Training omission rate