Results 61 to 70 of about 47,336 (301)

Sigmodontinae rodents as hosts for larvae and nymphs of Ixodes loricatus Neumann, 1899 (Acari: Ixodidae)

open access: yesParasite, 2004
Larvae and nymphs of Ixodes loricatus Neumann, 1899 ticks (confirmed by morphological characters and by comparison of 16S mitochondrial rDNA sequences) were collected from Sigmodontinae Wagner, rodents in central and northern Argentina and Uruguay.
Nava S.   +6 more
doaj   +1 more source

Life history and fitness costs in the lambda‐cyhalothrin resistant clone of English grain aphid, Sitobion avenae (Fabricius)

open access: yesPest Management Science, EarlyView.
The purpose of this study is to investigate the life‐history traits and fitness costs of English grain aphid clones that are resistant to lambda‐cyhalothrin (SA3) and susceptible to it (SA27). Overall, the results showed that there are differences in the stages of development, survival, reproduction and population growth.
Md Munir Mostafiz   +4 more
wiley   +1 more source

THE SANCTUARY OF NYMPHS (NYMPHEUM) IN APOLLONIA IN EPIRUS

open access: yesГуманитарные и юридические исследования, 2021
The presented article, dedicated to the sanctuary of the nymphs (Nymphaeum) in Apollonia in Epirus, has never been the subject of research by domestic scientists The diverse and rich nature of Epirus, an area in northwestern Greece, teeming with ...
S. Kazarov
doaj  

Variation in prevalence and intensity of macroparasites in moose and their interactions with winter tick load in eastern Canada

open access: yesWildlife Biology, EarlyView.
Wild animals are infected with a large diversity and abundance of parasites that can affect their behavior, growth, body condition, and ultimately their survival. Although the adverse effects of parasites and the mechanisms involved in the interactions between a host and its parasites are generally well studied, much less is known about the additive or
Catherine Pouchet   +5 more
wiley   +1 more source

Vitellogenin and Vitellogenin-Like Genes in the Brown Planthopper

open access: yesFrontiers in Physiology, 2019
Vitellogenin (Vg) is precursor of vitellin. Here, we identified a Vg (NlVg) and two Vg-likes (NlVg-like1 and NlVg-like2) in the brown planthopper, Nilaparvata lugens.
Yan Shen   +3 more
doaj   +1 more source

A Procedure for Sampling Nymphs of Saratoga Spittlebug, \u3ci\u3eAphrophora Saratogensis\u3c/i\u3e (Homoptera: Cercopidae), Using Percentage of Sample-Units Infested [PDF]

open access: yes, 2017
A method is proposed for rapidly estimating the nymphal population of the Saratoga spittlebug on alternate host plants in young red pine plantations. The method is based on an assumption that the number of nymphs per sample unit is distributed within an ...
Hobrla, Sharon L, Wilson, Louis F
core   +2 more sources

Crossing thermal boundaries: Quantifying the impact of sublethal heat stress on growth in black soldier fly (Hermetia illucens)

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ectothermic responses to permissive temperatures that support growth, maintenance and repair are typically modelled by thermal performance curves (TPC). In contrast, thermal death time (TDT) models are well suited to describe the potent, exponential accumulation of ...
Mattias Schow‐Madsen   +3 more
wiley   +1 more source

A Life History Study of Caecilius Aurantiacus (Hagen) (Psocoptera: Caeciliidae) [PDF]

open access: yes, 2017
Caecilius aurantiacus is a common, widely distributed psocid in well established forested areas of North America. Published information on this species is fragmentary and limited primarily to taxonomy.
Dunham, R. Scott
core   +2 more sources

Why do mayflies change their gill kinematics as they grow? [PDF]

open access: yesarXiv, 2013
The mayfly nymph breathes under water through an oscillating array of wing-shaped tracheal gills. As the nymph grows, the kinematics of these gills change abruptly from rowing to flapping. The classical fluid dynamics approach to consider the mayfly nymph as a pumping device fails in giving clear reasons to this switch.
arxiv  

First Record of the Enicocephalidae (Heteroptera) in Michigan and Ohio [PDF]

open access: yes, 2018
The unique-headed bug, Systelloderes biceps (Say), is reported from Michigan and Ohio, resulting in two new state records for the family ...
Swanson, Daniel R
core   +3 more sources

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