Results 21 to 30 of about 168,030 (343)

Susceptibility of the Endangered Karner Blue Butterfly (Lepidoptera: Lycaenidae) to \u3ci\u3eBacillus Thuringiensis\u3c/i\u3e Var. \u3ci\u3eKurstaki\u3c/i\u3e Used for Gypsy Moth Suppression in Michigan [PDF]

open access: yes, 2018
We investigated the phenological and physiological susceptibility of the endangered Karner blue butterfly (Lycaeides melissa samuelis) to Bacillus thuringiensis var.
Baue, Leah S   +5 more
core   +2 more sources

“No Patient” : Early HIV/AIDS epidemic in Korea and Government Response [PDF]

open access: yesUisahak
HIV/AIDS control in Korea characterized with “AIDS Prevention Law”, enacted in 1987. It was one of the first separate legal enforcement around the world that governs control of the HIV/AIDS epidemic.
Junho JUNG
doaj   +1 more source

The Growth and Survival of Early Instars of \u3ci\u3eBellura Obliqua\u3c/i\u3e (Lepidoptera: Noctuidae) on \u3ci\u3eTypha Latifolia\u3c/i\u3e and \u3ci\u3eTypha Angustifolia\u3c/i\u3e [PDF]

open access: yes, 2017
Larvae of the noctuid moth Bellura obliqua are frequently encountered on Typha latifolia, but less commonly on Typha angustifolia. Experiments were conducted to compare the growth and survivorship of early B. obliqua instars on the two species of cattail.
Penko, J. M, Pratt, D. C
core   +2 more sources

Measuring and reporting life-cycle duration in insects and arachnids

open access: yesEuropean Journal of Entomology, 2000
Some previous work on arthropod development is insufficiently detailed or incompletely reported. Much of the published information in this area is of limited use for the general analysis of life cycles.
Hugh V. DANKS
doaj   +1 more source

Survival and Food Detection by First-Instar \u3ci\u3eMelanoplus Femurrubrum\u3c/i\u3e (Orthoptera: Acrididae) [PDF]

open access: yes, 2017
Newly hatched Melanoplus femurrubrum (DeGeer) were evaluated for survival without food under various moisture, temperature, and light conditions. Although nymphs survived up to 113 h without food, they required food 48-W h after hatching to ensure ...
Bland, R. G
core   +2 more sources

Optimization of Artemia Feed Regimes for Larval Giant Kōkopu (Galaxias argenteus)

open access: yesFishes, 2023
Optimizing the initial live feed is critical to success in fish larviculture in terms of both larval health and productivity. It is also vitally important due to the significant cost of provisioning live feeds.
William McKay, Andrew Jeffs
doaj   +1 more source

Species and life stages of Odonata nymphs sampled with large drift nets in two Wisconsin rivers [PDF]

open access: yes, 2017
Because relatively few nymphs of Odonata are caught in most drift studies, they have been inconsistently reported and little is known about the species and life stages that are predisposed to drift.
DuBois, Bob, Pratt, Dennis
core   +2 more sources

Ontogenetic development and reproduction of Zorocrates guerrerensis (Araneae: Zoropsidae)

open access: yesArachnologische Mitteilungen, 2018
Zorocrates guerrerensis Gertsch & Davis, 1940 is a Mexican cribellate spider with almost no information about its biology. As the species could potentially be of medical interest, it was decided to study basic aspects of its life history under laboratory
Dolejš, Petr, Hanko, Mojmír
doaj   +1 more source

Preliminary field study of the life cycle parameters of the brown marmorated stink bug Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae) in Bulgaria [PDF]

open access: yesJournal of Central European Agriculture
The brown marmorated stink bug (Halyomorpha halys (Stål, 1855) is an invasive species that has entered Europe and has quickly managed to spread to most European countries.
Mariya HRISTOZOVA, Adelina HARIZANOVA
doaj   +1 more source

The last instar larva and pupa of Ora depressa (Coleoptera: Scirtidae), a marsh beetle with underwater pupation [PDF]

open access: yes, 2018
In this contribution we describe and illustrate for the first time, detailed morphology and chaetotaxy of the last instar larva and the pupa of Ora depressa (Fabricius, 1801), and provide diagnostic characters and information on its biology.
Archangelsky, Miguel   +3 more
core   +3 more sources

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