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Journal de la biodiversité et des espèces menacées

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Volume 9, Problème 10 (2021)

article de recherche

Clinical case report of unilateral idiopathic keratitis in a bottlenose dolphin (Tursiops truncatus)

María A. Sepúlveda G, Adriana P. Rojas R, Néstor I. Monroy O, Liliana Serrano B, Karen A. López R

Keratitis also called corneal ulcer is inflammation of the cornea, an ocular disorder that can lead to severe visual impairment and requires prompt diagnosis and treatment to avoid complex sequelae that can range from corneal opacity to corneal scarring, perforation, endophthalmitis and loss of the eye. Ulcer types are classified into superficial ulcer, deep ulcer, neurotrophic ulcer, perforating ulcer and corneal erosion. The objective of this work is to describe the clinical case of an adult female bottlenose dolphin (Tursiops truncatus) that was under human care belonging to the company Delphinus, which presented symptoms such as blepharitis and closed eye, characteristic symptoms of keratitis, confirming the diagnosis in this specimen was a challenge due to the retraction of the eye, however, The treatments used for this condition ranged from antibiotics and anti-inflammatories to alternative procedures such as the use of plasma rich in growth factors and ophthalmic ozone. With the latter, recovery of the integrity of the corneal epithelium and a minimal formation of scar tissue was observed; the definitive diagnosis was confirmed once the specimen opened its eye.

article de recherche

Spatial and Temporal Distribution of Hyena and its Risk to Human in Western Terai Landscape, Nepal

Shailendra Kumar Yadav, Babu Ram Lamichhane, Naresh Subedi and Hari Bhadra Acharya

We used camera opportunistic records of Hyaena in camera traps set for tigers to understand distribution and density of Striped Hyena Hyaena hyaenain Bardia National Park (BNP) and Banke National Park (BaNP) during 2013 and 2016/2017. This paper illustrate about temporal & spatial distribution as well as human hyena conflict status in western lowland of Nepal. Direct observation and camera traps data were used to collect information on human-hyena conflict and its distribution respectively. We also compare the number of individuals with encounter rate in two national parks during the period. Fifteen days of camera trapping was done with a sampling effort of 5,550 trap nights during winter of 2013 and 2016/2017. Camera traps yielded a total of 695 Hyena photographs of 17 individuals from thirty seven independent detections within an effective trapping area of 148.45 km2.Solitary striped hyenas co-exist in Bardia and Banke National Park with sympatric carnivores like tiger Panthera tigris , leopard Panthera pardus , Asiatic Wild dogs Cuonalpinus and Jackal Canis aureus . We also documented deaths of ten striped hyenas in WestenTerai between 2009 and 2018 due to Retaliatory Killings (3), Poaching (2), Road accidents (2), Natural Death (2) and Poisoning (1). Livestock depredation by striped hyena was the major reasons for the retaliatory killings. The conservation outreach programs should be formulated to conserve the habitat and maintain the prey population of the striped hyena which would be helpful for long term conservation of the striped hyena in Nepal. The study revealed that camera based capture-recapture method is an effective tool for assessing the population size and its distribution of Striped Hyena in BNP and BaNP.

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