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Gunung Jerai Black Stream-Frog

Gunung Jerai Black Stream-Frog

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Status
Endangered

IUCN conservation assessment category

Habitat
riparian wetlands, forest ponds, and damp vegetation zones

Primary ecological niche & biome

Diet
flying insects, forest spiders, and crawling invertebrates

Dietary type and primary food source

Activity
nocturnal

Diurnal, nocturnal, or active patterns

Scientific Summary

GBIF Taxonomic Backbone & Wikipedia Registry Profile

Diagnosis. Abavorana nazgul can be differentiated from its congeners by the following combination of characters: adult males 41.51 - 44.1 mm SVL and single adult female 52.51 mm; adult males with SW 7.98 - 8.70 mm, single adult female SW 9.59 mm; adult males with IOD 3.94 - 4.48 mm, single adult female IOD 4.94 mm; adult males with TD 3.52 - 4.01 mm, single adult female TD 4.10 mm; adult males with FL 22.20 - 23.22 mm, single adult female FL 27.80 mm; nuptial pads absent in males; humeral glands in males small (2.4 - 2.98 mm) (Table 5); dorsolateral stripe continuous, orange to yellow in colour; dorsum between dorsolateral stripes black, with or without faint orange or yellow speckles; flanks black, colouration unstratified; distinct cream-colored spots on flanks, dorsal surfaces of limbs, and upper lip; venter grey-brown with prominent light spots on throat and belly, smaller spots on underside of thigh (Fig. 9 E-F; Quah et al. 2017).
Biology & Conservation

Ecologically, the conservation status of Gunung Jerai Black Stream-Frog is officially designated as Endangered. Current field registries estimate a global population composed of an unquantified number of individuals, making habitat preservation critical to maintaining their wild populations.

It is typically endemic to riparian wetlands, forest ponds, and damp vegetation zones, showing great physiological synergy with its surroundings. In terms of dietary preferences, it relies primarily on a diet of flying insects, forest spiders, and crawling invertebrates. It exhibits specialized adaptations centered around a nocturnal activity pattern, optimizing its energy conservation and interactions within its native ecosystem. The species has a typical natural lifespan of approximately 6 years, allowing it to adapt and mature through structured generational cycles.

Ongoing biological monitoring and ecological advocacy emphasize the importance of protecting this species. The stability of its food chain and the prevention of fragmentation in its primary range are vital for the continued survival of Gunung Jerai Black Stream-Frog.

Energy & Activity Profile
Habitat & Adaptation Index
Quick Facts
Native RangeGlobal
Habitat Rangeriparian wetlands, forest ponds, and damp vegetation zones
Lifespan6 Yrs
StatusEndangered
ScientificAbavorana nazgul
Registry Info
Lifespan6 years
KingdomAnimalia
FamilyRanidae