Behavior of Organisms

Roberts, Tilden W.

doi:10.2307/1943038

“…Animal feeding behaviour and strategy i.e., to locate, acquire, and consume food resources shaped their characteristics, community interactions, and the development of their complex behaviour to efficiently obtain food and survive (Roberts 1942, McFarland 1981. While, the availability of resources and predation are among the most important biotic drivers that shape interactions across wildlife communities (Talbot 1978, Hiltunen andLaakso 2013;Glen and Dickman 2014).…”

Section: Introductionmentioning

confidence: 99%

Attacked from above and below: new ethological evidence on the predation strategies of corvid and varanid on a cave-roosting bat

Tanalgo

¹

,

Monfort²,

Hughes

³

2020

Ethology Ecology & Evolution

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Predation of bats in their roosts has previously only been attributed to a limited number of species such as various raptors, owls, and snakes. However, in situations where due to overcrowding and limited roost space, some individuals may be forced to roost in suboptimal conditions, such as around the entrances of caves and may thus be vulnerable to predation by species which would normally be unlikely to predate bats whilst roosting inside caves.

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“…Animal feeding behaviour and strategy i.e., to locate, acquire, and consume food resources shaped their characteristics, community interactions, and the development of their complex behaviour to efficiently obtain food and survive (Roberts 1942, McFarland 1981. While, the availability of resources and predation are among the most important biotic drivers that shape interactions across wildlife communities (Talbot 1978, Hiltunen andLaakso 2013;Glen and Dickman 2014).…”

Section: Introductionmentioning

confidence: 99%

Attacked from above and below, new observations of cooperative and solitary predators on roosting cave bats

Tanalgo

¹

,

Waldien

²

,

Monfort³

et al. 2019

Preprint

0

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Predation of bats in their roosts has previously only been attributed to a limited number of species such as various raptors, owls, and snakes. However, in situations where due to overcrowding and limited roost space, some individuals may be forced to roost in suboptimal conditions, such as around the entrances of caves and may thus be vulnerable to predation by species which would normally be unlikely to predate bats whilst roosting inside caves. Here, we describe the first documented cooperative hunting of the Large-billed Crow, Corvus macrorhynchos Wagler, 1827 (Passeriformes: Corvidae) and opportunistic predation by the Yellow-headed water monitor, Varanus cumingi Martin, 1839 (Squamata: Varanidae) in the world's largest colony of Geoffroy's Rousette, Rousettus amplexicaudatus (É. Geoffroy Saint-Hilaire, 1810) (Chiroptera: Pteropodidae) in the Island of Samal, Mindanao, Philippines.

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“…Feeding activity in animals is one of their fundamental interactions with the environment, including their ability to acquire, process, and consume food (Roberts 1942). Indeed, the behavior of most animals is shaped and characterized in very large measure by the nature of the foods consumed and the ways in which they are obtained (McFarland 1981).…”

Section: Introductionmentioning

confidence: 99%

“…Animals evolve several morphological adaptations to improve performance in their feeding guilds and/or strategies per se (Arnold 1983). Nevertheless, they do develop series of behavioral specializations in order to fulfill their specific feeding requirements (Roberts 1942). Therefore, both morphology and behaviors of animals are under selection, the force of which is influenced largely by the relative sizes of the feeding animals and the foods that they handle (Schoener 1971).…”

Section: Introductionmentioning

confidence: 99%

In situ feeding tactics of short-nosed fruit bat (Cynopterus sphinx) on mango fruits: evidence of extractive foraging in a flying mammal

Singaravelan

¹

,

Marimuthu

²

2007

J Ethol

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We report a sequence of behaviors exhibited by the short-nosed fruit bat Cynopterus sphinx while feeding on fruits of Mangifera indica. They peel off the outer skin to form a feeding area of about 3-6 cm diameter. Such food preparatory behaviors were more pronounced on larger mangoes. Bats competed among themselves to feed on the mangoes that had such feeding areas exposed. Individuals that spent a considerable amount of time on food preparatory behaviors actively secured the fruits. Altogether, these behaviors indicate that Cynopterus bats might have learnt, over evolutionary time, and developed behaviors that facilitate efficient processing and feeding of fruits such as mangoes. It appears that actions exhibited by C. sphinx in peeling off the outer skin of mangoes exemplify ''extractive foraging'', a behavior that is prominently known in large-brained mammals. Thus, our findings will have implications on the distribution and evolution of extractive foraging and ''technical intelligence'' among mammalian lineages.

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Behavior of Organisms

Cited by 6 publications

References 49 publications

Attacked from above and below: new ethological evidence on the predation strategies of corvid and varanid on a cave-roosting bat

Attacked from above and below: new ethological evidence on the predation strategies of corvid and varanid on a cave-roosting bat

Attacked from above and below, new observations of cooperative and solitary predators on roosting cave bats

In situ feeding tactics of short-nosed fruit bat (Cynopterus sphinx) on mango fruits: evidence of extractive foraging in a flying mammal

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