Results 111 to 120 of about 325 (159)
Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes. [PDF]
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Oikos, 2002
Determining if, or when, individuals trade off time spent personally feeding against time spent monitoring others for kleptoparasitism opportunities is essential to an understanding of the evolution of scrounging and usurpation behaviours. We provide a first field test of whether kleptoparasites reduce their personal foraging effort in situations where
Will Cresswell
exaly +2 more sources
Determining if, or when, individuals trade off time spent personally feeding against time spent monitoring others for kleptoparasitism opportunities is essential to an understanding of the evolution of scrounging and usurpation behaviours. We provide a first field test of whether kleptoparasites reduce their personal foraging effort in situations where
Will Cresswell
exaly +2 more sources
Animal Behaviour, 1979
Abstract Kleptoparasitism refers to the interspecific stealing of already procured food, but this paper shows that intraspecific food-stealing is effectively the same behaviour. A comprehensive review of the literature shows that certain orders of birds contain a disproportionate number of kleptoparasitic species.
H.Jane Brockmann, C.J. Barnard
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Abstract Kleptoparasitism refers to the interspecific stealing of already procured food, but this paper shows that intraspecific food-stealing is effectively the same behaviour. A comprehensive review of the literature shows that certain orders of birds contain a disproportionate number of kleptoparasitic species.
H.Jane Brockmann, C.J. Barnard
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Gulls and plovers: host vigilance, kleptoparasite success and a model of kleptoparasite detection
Animal Behaviour, 1985Abstract Much interest has focused on the conflict between feeding and vigilance. However, because predator attacks are rarely observed, the adaptive value of time spent vigilant (or non-vigilant through feeding) is difficult to ascertain. On the assumption that the tactics used by plovers (lapwings, Vanellus vanellus and golden plover, Pluvialis ...
Desmond B.A. Thompson +1 more
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The Southwestern Naturalist, 2015
Abstract We describe seven instances of kleptoparasitism by the Inca dove (Columbina inca) on the red harvester ant (Pogonomyrmex barbatus) in eastern Mexico, the first documented case in the order Columbiformes and the first for ants of the genus Pogonomyrmex. Doves visited the periphery of the ants' nest entrance and fed on waste material expelled by
Ernesto Ruelas Inzunza +2 more
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Abstract We describe seven instances of kleptoparasitism by the Inca dove (Columbina inca) on the red harvester ant (Pogonomyrmex barbatus) in eastern Mexico, the first documented case in the order Columbiformes and the first for ants of the genus Pogonomyrmex. Doves visited the periphery of the ants' nest entrance and fed on waste material expelled by
Ernesto Ruelas Inzunza +2 more
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Kleptoparasitism of Coots by Gadwalls
Ornis Scandinavica, 1984Kleptoparasitism of Coots by Gadwalls was recorded at a southern Spanish lagoon during a year of low water level, but not in previous years, when water levels were higher. Female Gadwalls parasitized Coots more frequently than did males. Once the Coot surfaced, the Gadwalls waited a few seconds before starting to parasitize, which could serve to ...
Juan A. Amat, Ramon C. Soriguer
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Kleptoparasitism in the Great Kiskadee
The Wilson Bulletin, 2001Kleptoparasitism has been extensively described for raptors and seabirds, but there are fewer observations for passerine birds. Here we describe several events of interspecific kleptoparasitism in the Great Kiskadee (Tyrannidae: Pitangus sulphuratus) in Buenos Aires, Argentina.
PAULO E. LLAMBÍAS +2 more
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The Evolution of a Kleptoparasitic System under Adaptive Dynamics
Journal of Mathematical Biology, 2006Kleptoparasitism, the stealing of food items, is a common biological phenomenon which has been modelled mathematically in a series of recent papers. A common assumption, following early work, was that mixed strategy solutions were not possible. In this paper we consider the evolution of mixed strategies under adaptive dynamics and show that such mixed ...
Broom, M., Rychtář, J.
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Seed dispersal by kleptoparasitic flies
Current BiologySeed dispersal is critical for plant reproduction, and plays a key role in shaping ecosystems1. Most seed plants are animal dispersed1, largely by vertebrates - invertebrate-mediated dispersal is rarer and underexplored, apart from seed dispersal by ants (myrmecochory), which disperse seeds of over 11,000 species2.
Yu-Long Yu, Guillaume Chomicki, Gao Chen
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AN ARTHROPOD PREDATOR-PREY-KLEPTOPARASITE ASSOCIATION
Northeastern Naturalist, 2002Two kleptoparasitic scorpionflies, Panorpa rufescens Rambur (Mecoptera: Panorpidae), were observed stealing food from Araneus bicentenarius (McCook) (Araneae: Araneidae) at Waterboro Barrens Preserve, York County, Maine. The spider's ensnared prey was a larva of Lapara sp.
Daniel T. Jennings, Nancy J. Sferra
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