Results 81 to 90 of about 116,496 (411)

Parasitoid Hama Penggerek Batang dan Pucuk Tebu di Cinta Manis, Ogan Ilir Sumatera Selatan

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2014
Serangan hama penggerek  tebu siap panen sebesar 11,25% di Cinta Manis tahun 2007. Lahan pengamatan 1 ha di bagi menjadi 5 petak secara diagonal, masing-masing seluas 200 m2, populasi tanaman sebanyak 1500 batang.
Dewi Meidalima
doaj   +1 more source

On a Hyperbolic-Parabolic Parasitoid-Parasite System: Well Posedness and Control [PDF]

open access: yesarXiv, 2020
We develop a time and space dependent predator-prey model. The predators' equation is a non local hyperbolic balance law, while the diffusion of prey obeys a parabolic equation, so that predators "hunt" for prey, while prey diffuse. A control term allows to describe the use of predators as parasitoids to limit the growth of prey-parasites.
arxiv  

Parasitoids and Polydnaviruses [PDF]

open access: yesBioScience, 1998
E ndoparasitic wasps develop within other insects and, invariably, kill their hosts. Because they cause host death, they are unlike other parasites that debilitate but do not kill their hosts; endoparasitic wasps are therefore designated as parasitoids (Godfray 1994).
openaire   +2 more sources

Insect chemosensory proteins as targets in insecticide resistance and development

open access: yesNew Plant Protection, EarlyView.
This review addresses the biological and chemical properties of insect chemosensory proteins (CSPs) and presents their functional advancements, not only in olfaction but also in nonolfactory processes, particularly in relation to insecticide resistance.
Fen Li   +5 more
wiley   +1 more source

Abundance and host associations of parasitoids attacking frugivorous drosophilids on Iriomote-jima, a subtropical island of Japan

open access: yesEuropean Journal of Entomology, 2012
To understand the factors governing the diversity, abundance and host associations of parasitoids attacking frugivorous drosophilid flies on Iriomote-jima, a subtropical island of Japan, we monitored parasitism on several occasions over the period 2003 ...
Biljana NOVKOVIĆ   +4 more
doaj   +1 more source

Quasi-stationary distributions for randomly perturbed dynamical systems [PDF]

open access: yesAnnals of Applied Probability 2014, Vol. 24, No. 2, 553-598, 2011
We analyze quasi-stationary distributions $\{\mu^{\varepsilon}\}_{\varepsilon>0}$ of a family of Markov chains $\{X^{\varepsilon}\}_{\varepsilon>0}$ that are random perturbations of a bounded, continuous map $F:M\to M$, where $M$ is a closed subset of $\mathbb{R}^k$.
arxiv   +1 more source

Dinocampus coccinellae as a parasitoid of the invasive ladybird Harmonia axyridis in Europe [PDF]

open access: yes, 2010
A
Adriaens   +52 more
core   +2 more sources

Host switching in a generalist parasitoid: contrasting transient and transgenerational costs associated with novel and original host species

open access: yesEcology and Evolution, 2015
Parasitoids face challenges by switching between host species that influence survival and fitness, determine their role in structuring communities, influence species invasions, and affect their importance as biocontrol agents.
T. S. Jones   +3 more
semanticscholar   +1 more source

Unapparent trees: escaping enemies in time by being discreet, unpredictable and inaccessible

open access: yesOikos, EarlyView.
For half a century, biologists considered trees as particularly apparent to their enemies. But why then do some trees escape herbivorous enemies by bursting buds either too early or too late, leading to phenological mismatch? We hypothesize that such mismatches occur on trees that are unapparent in time – those that burst buds ‘discreetly' (slowly) and
Soumen Mallick   +11 more
wiley   +1 more source

A Wright-Fisher model with indirect selection [PDF]

open access: yesJournal of Mathematical Biology, Springer Verlag (Germany), 2015, pp.(Online First), 2014
We study a generalization of the Wright--Fisher model in which some individuals adopt a behavior that is harmful to others without any direct advantage for themselves. This model is motivated by studies of spiteful behavior in nature, including several species of parasitoid hymenoptera in which sperm-depleted males continue to mate de- spite not being ...
arxiv   +1 more source

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