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Figure 1: Vertebrate prey of Ceratophrys stolzmanni from Arenillas Ecological Reserve, Ecuador; each image shows the predator on the left and its prey on the right.



Figure 1: Vertebrate prey of Ceratophrys stolzmanni from Arenillas Ecological Reserve, Ecuador; each image shows the predator on the left and its prey on the right.

(A) Northern Cat-eyed snake (Leptodeira septentrionalis); (B) Jordan’s Casque-headed Treefrog (Trachycephalus jordani). Photo credit: Diana Székely.

Figure 3: Anurophagy in Ceratophrys stolzmanni. (A) and (B) Cannibalism in juveniles; (C) adult C. stolzmanni preying upon a Leptodactylus labrosus; (D) adult C. stolzmanni scavenging on a Trachycephaus jordanni carcass.

Таблица 1:

Prey types present in the gastrointestinal tract of adult (n = 31) Ceratophrys stolzmanni from Arenillas Ecological Reserve.

Prey taxa nx (a) nx (%) fx (a) fx (%) Vx (a) Vx (%) Ix
Pulmonata 9.6 45.2 10151.1 33.3 29.4
Arachnida 22.6 383.4 1.2 29.3
Acari  60.9 3.2 0.5 21.4
Araneae  2.5 16.1 306.2 6.6
Pseudoscorpionida  0.5 3.2 14.4 0.1 1.3
Chilopoda 1.0 6.5 8,990.9 29.5 12.3
Insecta 23.4 48.4 10,946.4 35.9 35.9
Coleoptera  4.1 16.1 4,513.2 14.8 11.7
Hymenoptera F  6.6 12.9 96.8 0.3 6.6
Hymenoptera NF  11.7 25.8 1,641 5.4 14.3
Lepidoptera  0.5 3.2 261.7 0.9 1.5
Orthoptera  0.5 3.2 4,421.1 14.5 6.1
Unidentified  0.5 3.2 12.6 0.04 1.3
Anura 1.0 6.5 n.a. n.a. n.a.
Serpentes 0.5 3.2 n.a. n.a. n.a.

 

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