Results 21 to 30 of about 7,048 (122)
Foraging by predatory ants: A review
Insect Science, EarlyView.This review focuses on ecological and behavioral characteristics of foraging in ants showing the wide diversity of cases. Most ants can feed on sugary substances, but some ground‐nesting species are strict predators. Except army ants during the nomadic phase, they are central‐place foragers that can recruit nestmates when necessary. They prey mostly on
Alain Dejean +5 more
wiley +1 more source
The perturbed prox-preconditioned spider algorithm: non-asymptotic convergence bounds [PDF]
IEEE Statistical Signal Processing Workshop, Jul 2021, Rio de
Janeiro, Brazil, 2021 A novel algorithm named Perturbed Prox-Preconditioned SPIDER (3P-SPIDER) is introduced. It is a stochastic variancereduced proximal-gradient type algorithm built on Stochastic Path Integral Differential EstimatoR (SPIDER), an algorithm known to achieve near-optimal first-order oracle inequality for nonconvex and nonsmooth optimization.
arxiv
Insect Science, EarlyView.Orius predators oviposit endophytically, and plant characteristics play an important role in their oviposition choices. In this study, we show that oviposition preferences differ between species, and that these differences may correlate with juvenile performance.
Angelos Mouratidis +3 more
wiley +1 more source
Disease dynamics of Honeybees with Varroa destructor as parasite and virus vector [PDF]
arXiv, 2015 We propose a honeybee-mite-virus model that incorporates (1) parasitic interactions between honeybees and the Varroa mites; (2) five virus transmission terms between honeybees and mites at different stages of Varroa mites: from honeybees to honeybees, from adult honeybees to phoretic mites, from honeybee brood to reproductive mites, from reproductive ...
arxiv
An Inductive Approach to Strongly Antimagic Labelings of Graphs [PDF]
arXiv, 2022 An antimagic labeling for a graph $G$ with $m$ edges is a bijection $f: E(G) \to \{1, 2, \dots, m\}$ so that $\phi_f(u) \neq \phi_f(v)$ holds for any pair of distinct vertices $u, v \in V(G)$, where $\phi_f(x) = \sum_{x \in e} f(e)$. A strongly antimagic labeling is an antimagic labeling with an additional condition: For any $u, v \in V(G)$, if $\deg(u)
arxiv
Exploring marking methods for the predatory hoverfly Sphaerophoria rueppellii (Diptera: Syrphidae)
Insect Science, EarlyView.As important pollinators and predators of aphids, hoverflies play an important role in ecosystems. This study focuses on identifying the best marking technique for the model species Sphaerophoria rueppellii that can be used to track hoverfly feeding and oviposition sites, evaluating three methods: rubidium (RbCl), fluorescein, and fluorescent dusts ...
Michele Violi +4 more
wiley +1 more source
An epidemiological model of viral infections in a Varroa-infested bee colony: the case of a bee-dependent mite population size [PDF]
arXiv, 2016 In recent years the spread of the ectoparasitic mite Varroa destructor has become the most serious threat to worldwide apiculture. In the model presented here we extend the bee population dynamics with mite viral epidemiology examined in an earlier paper by allowing a bee-dependent mite population size.
arxiv
Insect Science, EarlyView.This study investigated the dietary composition of Sycanus bifidus, a generalist predator of the assassin bug that is artificially released into citrus orchards, and uncovered its trophic structure across various pest species using metabarcoding‐based molecular gut content analysis.
Weidong Huang +9 more
wiley +1 more source
Extremely asymmetric ectasia: Tomographically unilateral keratoconus
Acta Ophthalmologica, EarlyView.Abstract Purpose To investigate the characteristics of apparently stable forms of tomographically unilateral keratoconus (KC). Methods In this retrospective case–control study, strict unilaterality criteria were applied to select tomographically unilateral cases with ≥3 years of follow‐up.
Hasan Shabani +6 more
wiley +1 more source
Biodiversity in mountain soils above the treeline
Biological Reviews, EarlyView.ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also the case for mountain soils, but no study to date has provided an overall synthesis of the current state of knowledge. Here we fill this gap with a first global analysis of published research on cryptogams, microorganisms, and fauna in ...
Nadine Praeg +36 more
wiley +1 more source