Results 91 to 100 of about 176,040 (305)
Nonlinear Dynamic analysis of vector-host model for Zika infection with predatory fish Gambusia Affinis [PDF]
arXiv, 2022 In the present paper, we study the dynamics of a nine compartmental vector-host model for Zika virus infection where the predatory fish Gambusia Affinis is introduced into the system to control the zika infection by preying on the vector. The system has six practically feasible equilibrium points where four of them are disease-free, and the rest are ...
arxiv
The Anatomical Record, EarlyView.Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley +1 more source
Competitio, 2009 Predatory pricing is one of the most debated issue among the many possibly abusive behaviors of a dominant firm. The general prohibition of the abuse of a dominant power in the competition law is meant to render more difficult to use that power but not ...
Zoltán Bara
doaj +1 more source
Prey density affects predator foraging strategy in an Antarctic ecosystem
Ecology and Evolution, 2020 Studying the effects of prey distribution on predator behavior is complex in systems where there are multiple prey species. The role of prey density in predator behavior is rarely studied in closed ecosystems of one predator species and one prey species,
Karl M. Busdieker +3 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido +2 more
wiley +1 more source
Sociobiology, 2017 Ants are among the insects involved in cadaveric decomposition processes, as they exhibit predatory and necrophagous behavior. Red ants exhibit an aggressive behavior, which impacts carcass colonization, accelerates or delays the decomposition rates and ...
Eunice Kethure Coelho Pereira +7 more
doaj +1 more source
Oscillations from satiation of predators [PDF]
arXiv, 2017 We develop a mathematical model of extinction and coexistence in a generic predator-prey ecosystem composed of two herbivores in asymmetrical competition and a hunter exerting a predatory pressure on both species. With the aim of representing the satiety of hunters when preys are overabundant, we introduce for the predation behavior a dependence on ...
arxiv
On The Peer Review Reports: Does Size Matter? [PDF]
Scientometrics (2024)Amidst the ever-expanding realm of scientific production and the proliferation of predatory journals, the focus on peer review remains paramount for scientometricians and sociologists of science. Despite this attention, there is a notable scarcity of empirical investigations into the tangible impact of peer review on publication quality.
arxiv +1 more source
Hypercanines: Not just for sabertooths
The Anatomical Record, EarlyView.Abstract Hypercanines are here defined as hypertrophied caniniform teeth, that is, canine teeth that are elongated to serve specific functions in different clades of mammals and their synapsid ancestors. This article presents an overview of the occurrence of hypercanines, their growth, and their function across a broad range of clades.
Lars Werdelin
wiley +1 more source
The thoracic anatomy of Pselaphus heisei (Pselaphinae, Staphylinidae, Coleoptera)
Journal of Morphology, Volume 284, Issue 1, January 2023., 2023 Upper part: SEM micrographs of Pselaphus heisei, lateral view; Lower part: 3D reconstructions of thoracic muscles of Pselaphus heisei, mesal view. Abstract We document external and internal thoracic structures of the free‐living pselaphine beetle Pselaphus heisei (Pselaphitae) using a set of traditional and modern techniques.
Xiao‐Zhu Luo +2 more
wiley +1 more source