Two predators, one prey model that integrates the effect of supplementary food resources due to one predator's kleptoparasitism under the possibility of retribution by the other predator [PDF]
Heliyon, 2023 In ecology, foraging requires animals to expend energy in order to obtain resources. The cost of foraging can be reduced through kleptoparasitism, the theft of a resource that another individual has expended effort to acquire.
Santanu Acharjee +2 more
exaly +6 more sources
Evidence of nest material kleptoparasitism in Worm‐eating Warblers (Helmitheros vermivorum) in east‐central Arkansas, USA [PDF]
Ecology and Evolution, 2021 Nest material kleptoparasitism likely evolved in birds to reduce the cost of searching for and collecting material themselves. Although nest material kleptoparasitism has been reported commonly in colonially nesting species, reports for solitary breeding
Amy L. Wynia, James C. Bednarz
doaj +3 more sources
Which web to invade? Argyrodine kleptoparasites differentiate amongst architecturally different host webs [PDF]
Biodiversity Data JournalKleptoparasitism, the theft of resources from another organism, is a widespread foraging strategy amongst animals. Many Argyrodinae cobweb spiders (Theridiidae) are obligatory kleptoparasites that have abandoned web building, relying instead on webs of ...
Ingi Agnarsson +10 more
doaj +4 more sources
Human procurement of meat from lion (Panthera leo) kills: Costs of disturbance and implications for carnivore conservation. [PDF]
PLoS ONEIn Africa, humans and large carnivores compete over access to resources, including prey. Disturbance by humans to kills made by carnivores, often for purposes of obtaining all or portions of the carcass, constitutes a form of human-wildlife conflict ...
Paula A White +3 more
doaj +2 more sources
Thieves and freeloaders: Argyrodine kleptoparasites invading cobwebs (Theridiidae) in the arid south-western USA [PDF]
Biodiversity Data JournalObligate argyrodine kleptoparasites (Theridiidae, Araneae) exploit heterospecific spider webs for food and shelter. Argyrodine spiders are a model lineage for the study of kleptoparasitism and related strategies, yet data on the behaviour of the majority
Jillian Cowles, Ingi Agnarsson
doaj +4 more sources
Leopard density and interspecific spatiotemporal interactions in a hyena‐dominated landscape [PDF]
Ecology and Evolution, 2022 Scavenging is widespread in the carnivore guild and can greatly impact food web structures and population dynamics by either facilitation or suppression of sympatric carnivores.
Sander Vissia +2 more
doaj +2 more sources
Assessing the Ecological Network of Svalbard Through Scaled Interaction Strength Data: Insights From a Century of Research. [PDF]
Ecol EvolIn this work, we integrate existing knowledge on interaction strengths into a conceptual model of the Svalbard Ecological Network. We also highlight current knowledge gaps and challenges in establishing a robust baseline of species interactions in the region.
Zhemchuzhnikov MK +4 more
europepmc +2 more sources
Novel Observation: Northern Cardinal (Cardinalis cardinalis) Perches on an Invasive Jorō Spider (Trichonephila clavata) Web and Steals Food [PDF]
Insects, 2022 An invasive spider (Trichonephila clavata [L. Koch 1878], or jorō spider) is rapidly expanding throughout the southeast of the United States, engendering many questions about how native fauna will be affected.
Arty Schronce, Andrew K. Davis
doaj +2 more sources
Foraging Observations: Novel Trophic Interactions Between the Andean Gull (Chroicocephalus serrranus) and Endangered Vertebrates of Lake Titicaca [PDF]
Ecology and EvolutionWe record two new predation events and one new kleptoparasitic Andean Gull (Chroicocephalus serranus) behavior, interactions that directly link to the Titicaca Grebe (Rollandia microptera) and Titicaca Water Frog (Telmatobius culeus).
Jhazel Quispe +4 more
doaj +2 more sources
Spiders as superhosts and secondary kleptoparasites
Frontiers in Arachnid ScienceKleptoparasitism, broadly defined, is the theft of extrinsic resources resulting in potential cost to the host. The stealing of resources, often food gathered by another, is perhaps best known in birds and mammals, but is even more common and widespread ...
Ingi Agnarsson, Ingi Agnarsson
doaj +2 more sources