DIET PREFERENCES AND REPRODUCTION OF TRANSLOCATED BARN OWL, Tyto alba javanica IN CAPTIVITY

Rizuan, Cik Mohd

doi:10.21894/jopr.2017.2903.05

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…Some studies show barn owls have an affinity to feed on smaller prey (e.g. Dickman et al, 1991; Rizuan et al , 2017) while other studies have reported a tendency to feed on larger prey (Derting & Cranford, 1989; Castro & Jaksic, 1995). Our analysis show that barn owls prefer medium-sized Norway rats (40 to 120g) in urban areas, a finding similarly reported by Gaunt et al (1997) and Hindmarch and Elliott (2015).…”

Section: Discussionmentioning

confidence: 99%

“…Its renowned role as an efficient small mammal predator has led to barn owls being introduced in various landscapes. Barn owls have been introduced in islands (Au & Swedberg, 1966; Emmerson & Ascani, 1985), agricultural areas (Hafidzi & Naim, 2003b; Rizuan et al, 2017) and semi-urban areas (Meyer, 2008) for the purpose of controlling pest rodent populations. Barn owls are also translocated as part of reintroduction programs for declining local barn owl populations (Meek et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Diet composition of introduced Barn Owls (Tyto alba javanica) in urban area in comparison with agriculture settings

Saufi

Ravindran

Hamid³

et al. 2019

Preprint

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2This study investigated the diet of introduced barn owls (Tyto alba javanica, Gmelin) in the 3 urban area of the Main Campus of Universiti Sains Malaysia, Penang, Malaysia, based on 4 collected regurgitated pellets. We also compared the diet of introduced urban barn owls with 5 the diet of barn owls from two agricultural areas, i.e. oil palm plantations and rice fields. Pellet 6 analysis of barn owls introduced in the urban area showed that commensal Norway rats, Rattus 7 norvegicus, made up the highest proportion of the diet (65.37% prey biomass) while common 8 shrews, Suncus murinus were the second highest consumed prey (30.12% prey biomass). 9Common plantain squirrel, Callosciurus notatus, made up 4.45% of the diet while insects were 10 taken in a relatively small amount (0.046% prey biomass). Introduced barn owls showed a 11 preference for medium-sized prey, i.e. 40 to 120g (52.96% biomass and 38.71% total). In 12 agricultural areas, Rattus argentiventer predominated the diet of barn owls (98.24% prey 13 biomass) in rice fields while Malayan wood rats, Rattus tiomanicus, were the most consumed 14 prey in oil palm plantations (99.5% prey biomass). Food niche breadth value was highest for 15 barn owls introduced in an urban area with a value of 2.90, and 1.06 in rice fields and 1.22 in 16 oil palm plantations. Our analysis reiterates the prey preference of barn owls in various 17 landscapes for small mammals. Our results also indicate the suitability of utilizing barn owls 18 as a biological control not only in agricultural areas, but also as a biological control agent for 19 commensal rodent pests in urban areas. 20

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diet composition of introduced Barn Owls (Tyto alba javanica) in urban area in comparison with agriculture settings

Saufi

Ravindran

Hamid³

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Even though the oil palm landscape may not be similar with that in the Peninsular, with varied different species of rats abound, the translocated owls have established well and been breeding successfully [83]. In Lahad Datu, Sabah, owl's translocation programme that started with ten pairs of owl in 2015 has grown to a population of more than 700 individuals [84,85].…”

Section: The Use Of Barn Owl For Rat Control In Oil Palmmentioning

confidence: 99%

Sustainable Control of Rats by Rodenticide Application and Natural Propagation of Barn Owls (Tyto Javanica)

Noor¹

2020

Owls

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Rat infestation in crops has been dealt with the crudest method of hunting and trapping to reliance on natural enemies to application of rodenticides and the present approach of IPM by combining baiting with biological control by a suitable predator. Sustainability is the key feature where rat pest is kept below the carrying capacity of the habitat avoiding harming nontarget animals and preserving the environment. Combining rodenticides with predators calls for a balancing act whereby the latter is not exposed in as much as possible to intoxication by the former through secondary poisoning. Long-term exposure to the first-generation anticoagulant rodenticide (FGAR) has given rise to bait resistance, prompting the formulation of highly toxic second-generation rodenticides (SGAR) that may overcome resistance in rat but lead to bioaccumulation of rodenticide residues in the predator leading to lethal or sublethal effects on the latter, which defeats the purpose. Therefore, the choice of rodenticides and applications may bring out the desired effects for a sustainable rat control programme in combination with predators as natural enemies. This paper reports on a number of studies to achieve sustainable rat control programme by combining available rodenticide formulations with the natural propagation of barn owls Tyto javanica in oil palm plantation in Malaysia.

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Diet composition of introduced barn owls (Tyto alba javanica) in urban area in comparison with agriculture settings

Saufi

Ravindran

Hamid³

et al. 2020

Journal of Urban Ecology

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This study investigated the diet of introduced barn owls (Tyto alba javanica, Gmelin) in the urban area of the Main Campus of Universiti Sains Malaysia, Penang, Malaysia, based on collected regurgitated pellets. We also compared the diet of the introduced barn owls with the diet of barn owls from two agricultural areas, i.e. oil palm plantations and rice fields. Pellet analysis of introduced barn owls showed that commensal Norway rats, Rattus norvegicus, made up the highest proportion of the diet (65.37% prey biomass) while common shrews, Suncus murinus were the second highest consumed prey (30.12% prey biomass). Common plantain squirrel, Callosciurus notatus, made up 4.45% of the diet while insects were taken in a relatively small amount (0.046% prey biomass). Introduced barn owls showed a preference for medium-sized prey, i.e. 40–120 g (52.96% biomass and 38.71% total). In agricultural areas, rice field rats, Rattus argentiventer predominated the diet of barn owls (98.24% prey biomass) in rice fields while Malayan wood rats, Rattus tiomanicus, were the most consumed prey in oil palm plantations (99.5% prey biomass). Food niche breadth value was highest for barn owls introduced in an urban area with a value of 2.90, and 1.06 in rice fields and 1.22 in oil palm plantations. Our analysis reiterates the prey preference of barn owls in various landscapes for small mammals. Our results also indicate the suitability of utilizing barn owls as a biological control not only in agricultural areas, but also as a biological control agent for commensal rodent pests in urban areas.

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DIET PREFERENCES AND REPRODUCTION OF TRANSLOCATED BARN OWL, Tyto alba javanica IN CAPTIVITY

Abstract: ABSTRACT

Cited by 5 publications

References 15 publications

Diet composition of introduced Barn Owls (Tyto alba javanica) in urban area in comparison with agriculture settings

Diet composition of introduced Barn Owls (Tyto alba javanica) in urban area in comparison with agriculture settings

Sustainable Control of Rats by Rodenticide Application and Natural Propagation of Barn Owls (Tyto Javanica)

Diet composition of introduced barn owls (Tyto alba javanica) in urban area in comparison with agriculture settings

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