Studies on the ecology of Oncopera intricata Walker (Lepidoptera: Hepialidae). 2. Selection of oviposition sites by the female moths.

1965 ◽  
Vol 13 (5) ◽  
pp. 807 ◽  
Author(s):  
EJ Martyn
Keyword(s):  
Natural Populations ◽  
Wire Mesh ◽  
Grass Cover ◽  
Reasonable Number ◽  
Wire Mesh Cage ◽  
Mesh Cage ◽  
Oviposition Sites ◽  
Selection Of ◽  
Mated Female

The results are reported of studies on the effect of length and density of pasture cover on the selection of oviposition sites by the mated female moths of Oncopera intricata Walker. Moths were placed in a wire-mesh cage, 7 ft in diameter and 2 ft high, in which they were given a choice of pasture cover in which to oviposit. It was found that the length of the grass cover was important in causing settling by the moths since when only short cover was provided, few moths laid their eggs in the plots irrespective of the density of the cover provided. When long cover was provided in some of the plots the preferred sites were where the cover was long and dense but a reasonable number of moths oviposited in short sparse cover. Where long cover alone was provided the dense plots were preferred to the sparse. The implications of these results on the pattern of distribution and survival in natural populations is discussed.

scholarly journals Automatic Management of Mice. I. Growth of Mice Maintaintained in a Wire-Mesh Cage

1973 ◽  
Vol 22 (4) ◽  
pp. 303-306 ◽  
Author(s):  
Hiroshi NAGASAWA ◽  
Moriyoshi MIYAMOTO ◽  
Masaharu FUJIMOTO ◽  
Kazuo KURETANI
Keyword(s):  
Wire Mesh ◽  
Wire Mesh Cage ◽  
Mesh Cage

scholarly journals Distribution of Helicoverpa armigera (H^|^#252;bner) eggs on an eggplant leaf in a wire mesh cage

2012 ◽  
Vol 54 (0) ◽  
pp. 195-196
Author(s):  
Ayako Nishihama ◽  
Yoshiko Ioku ◽  
Toshihiro Sunaike ◽  
Yoshitsugu Nasu ◽  
Kiyotsugu Okada ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Wire Mesh ◽  
Helicoverpa Armígera ◽  
Wire Mesh Cage ◽  
Mesh Cage

scholarly journals Void spot assay procedural optimization and software for rapid and objective quantification of rodent voiding function, including overlapping urine spots

2018 ◽  
Vol 315 (4) ◽  
pp. F1067-F1080 ◽  
Author(s):  
Kyle A. Wegner ◽  
Lisa L. Abler ◽  
Steven R. Oakes ◽  
Guneet S. Mehta ◽  
K. Elaine Ritter ◽  
...  
Keyword(s):  
Voiding Dysfunction ◽  
Data Extraction ◽  
Mouse Genetics ◽  
Wire Mesh ◽  
Design Parameters ◽  
Urinary Function ◽  
Voiding Function ◽  
Wire Mesh Cage ◽  
Mesh Cage ◽  
Assay Design

Mouse urinary behavior is quantifiable and is used to pinpoint mechanisms of voiding dysfunction and evaluate potential human therapies. Approaches to evaluate mouse urinary function vary widely among laboratories, however, complicating cross-study comparisons. Here, we describe development and multi-institutional validation of a new tool for objective, consistent, and rapid analysis of mouse void spot assay (VSA) data. Void Whizzard is a freely available software plugin for FIJI (a distribution of ImageJ) that facilitates VSA image batch processing and data extraction. We describe its features, demonstrate them by evaluating how specific VSA method parameters influence voiding behavior, and establish Void Whizzard as an expedited method for VSA analysis. This study includes control and obese diabetic mice as models of urinary dysfunction to increase rigor and ensure relevance across distinct voiding patterns. In particular, we show that Void Whizzard is an effective tool for quantifying nonconcentric overlapping void spots, which commonly confound analyses. We also show that mouse genetics are consistently more influential than assay design parameters when it comes to VSA outcomes. None of the following procedural modifications to reduce overlapping spots masked these genetic-related differences: reduction of VSA testing duration, water access during the assay period, placement of a wire mesh cage bottom on top of or elevated over the filter paper, treatment of mesh with a hydrophobic spray, and size of wire mesh opening. The Void Whizzard software and rigorous validation of VSA methodological parameters described here advance the goal of standardizing mouse urinary phenotyping for comprehensive urinary phenome analyses.

Choices of farm foxes for raised wire mesh cage and ground pen

1997 ◽  
Vol 54 (2-3) ◽  
pp. 243-250 ◽  
Author(s):  
Hannu Korhonen ◽  
Paavo Niemelä
Keyword(s):  
Wire Mesh ◽  
Wire Mesh Cage ◽  
Mesh Cage

scholarly journals Distribution of eggs and larvae of Helicoverpa armigera (H^|^#252;bner) on eggplant in a wire mesh cage

2012 ◽  
Vol 54 (0) ◽  
pp. 197-198
Author(s):  
Yoshiko Ioku ◽  
Ayako Nishihama ◽  
Toshihiro Sunaike ◽  
Yoshitsugu Nasu ◽  
Kiyotsugu Okada ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Wire Mesh ◽  
Helicoverpa Armígera ◽  
Wire Mesh Cage ◽  
Mesh Cage ◽  
Eggs And Larvae

scholarly journals A reappraisal of the role of mosquitoes in the transmission of myxomatosis in Britain

1971 ◽  
Vol 69 (1) ◽  
pp. 105-111 ◽  
Author(s):  
M. W. Service
Keyword(s):  
Field Experiments ◽  
Mosquito Species ◽  
Myxoma Virus ◽  
Wire Mesh ◽  
Natural Conditions ◽  
Blood Smears ◽  
Wire Mesh Cage ◽  
Mesh Cage ◽  
Made In

SUMMARYField experiments were made in southern England to re-examine the possibility that mosquitoes in Britain might feed on wild rabbits and hence be vectors of myxomatosis. Mosquitoes of several species were attracted to rabbits enclosed hi cylindrical traps and in a trap in which the animal was placed in a wire mesh cage. Substantial numbers of mosquitoes were also caught biting, or attempting to bite, tethered rabbits which were not in cages or traps. Evidence that mosquitoes fed on wild rabbits under natural conditions was obtained from results of precipitin tests made on blood-smears collected from mosquitoes caught resting amongst vegetation. On a few evenings mosquitoes were seen to be attracted to healthy wild rabbits and apparently attempting to feed on them. Batches of two mosquito species collected from the field were infected with myxoma virus.It was concluded that contrary to previous beliefs mosquitoes in Britain feed to a certain extent on wild rabbits, and therefore are potential vectors of myxomatosis. No attempts were made to assess their relative importance in the transmission of the disease, which in Britain is transmitted mainly by the rabbit flea.

scholarly journals Genetic variation in the dietary sucrose modulation of enzyme activities in Drosophila melanogaster

1984 ◽  
Vol 43 (3) ◽  
pp. 307-321 ◽  
Author(s):  
Billy W. Geer ◽  
Cathy C. Laurie-Ahlberg
Keyword(s):  
Drosophila Melanogaster ◽  
Genetic Variation ◽  
Enzyme Activities ◽  
Glycogen Synthesis ◽  
Krebs Cycle ◽  
Natural Populations ◽  
Substitution Lines ◽  
Chromosome Substitution Lines ◽  
High Sucrose Diet ◽  
Selection Of

SUMMARYGenetic variation in the modulating effect of dietary sucrose was assessed in Drosophila melanogaster by examining 27 chromosome substitution lines coisogenic for the X and second chromosomes and possessing different third isogenic chromosomes derived from natural populations. An increase in the concentration of sucrose from 0·1% to 5% in modified Sang's medium C significantly altered the activities of 11 of 15 enzyme activities in third instar larvae, indicating that dietary sucrose modulates many, but not all, of the enzymes of D. melanogaster. A high sucrose diet promoted high activities of enzymes associated with lipid and glycogen synthesis and low activities of enzymes of the glycolytic and Krebs cycle pathways, reflecting the physiological requirements of the animal. Analyses of variance revealed significant genetic variation in the degrees to which sucrose modulated several enzyme activities. Analysis of correlations revealed some relationships between enzymes in the genetic effects on the modulation process. These observations suggest that adaptive evolutionary change may depend in part on the selection of enzyme activity modifiers that are distributed throughout the genome.

Habitat use by stream-breeding frogs in south-east Sulawesi, with some preliminary observations on community organization

2004 ◽  
Vol 20 (4) ◽  
pp. 439-448 ◽  
Author(s):  
Graeme R. Gillespie ◽  
David Lockie ◽  
Michael P. Scroggie ◽  
Djoko T. Iskandar
Keyword(s):  
Species Richness ◽  
Habitat Use ◽  
Community Organization ◽  
Habitat Associations ◽  
Habitat Partitioning ◽  
Tropical Stream ◽  
Frog Species ◽  
Oviposition Sites ◽  
Selection Of ◽  
Spatial Habitat

The habitat associations of stream-breeding frogs were examined along a series of stream transects on Buton Island in south-east Sulawesi, Indonesia. Of the eight frog species located along streams, four were observed breeding in stream habitats. We examined spatial habitat partitioning among these species. Three of the four species were found to be associated with a non-random selection of the available perch sites. Strong partitioning between species in habitat associations was found; partitioning of the available habitat space was primarily associated with differences in proximity to stream features, and in the height of perch sites. General observations indicated that oviposition sites of most species were associated with the microhabitats in which the adult frogs were found. All four stream-breeding species appear to have synchronous breeding phenologies and the spatial relationships of these species within the habitat space appear to reflect partitioning of calling sites and oviposition sites. The stream-breeding frog community in this region of Sulawesi has much lower species richness and less specialized habitat use compared with other tropical stream-breeding frog communities in the region.

scholarly journals Variation in oleoresin yield and anatomical traits among Sindora glabra populations in Hainan, China

Trees ◽  
2020 ◽  
Vol 34 (5) ◽  
pp. 1323-1334
Author(s):  
Niu Yu ◽  
Qiongqiong Li ◽  
Jinchang Yang ◽  
Guangtian Yin ◽  
Rongsheng Li ◽  
...  
Keyword(s):  
Quantitative Traits ◽  
Natural Populations ◽  
Wet Season ◽  
Tree Diameter ◽  
Anatomical Analysis ◽  
Tropical Plant ◽  
Increasing Trend ◽  
Secretory Canals ◽  
Major Factors ◽  
Selection Of

Key message Geography and tree diameter were the major factors in determining oleoresin yield in Sindora glabra. The tangential diameter and area of secretory canals are reliable indicators of the oleoresin amount. Abstract Sindora glabra is a native tropical plant of China that exudes copious amounts of oleoresin from wounds on the stem. Elucidation of the mechanism affecting the oleoresin yield is of particular importance for development and selection of superior germplasm. In this study, the variation in oleoresin yield and anatomical traits of the stem of S. glabra were investigated in four main natural populations in Hainan. The results showed that annual oleoresin yield varied considerably among populations. The oleoresin yield exhibited an increasing trend with the increment of tree stem diameter until the diameter was over 80 cm. Moreover, oleoresin production in the wet season was higher than in dry season. The analysis of oleoresin chemical composition indicated that the four populations belong to the same chemotype despite the amount of four types of sesquiterpenes varying greatly among areas. Anatomical analysis revealed that quantitative traits of secretory canals including tangential diameter, area, density and frequency were significantly different among populations and tree diameters. Furthermore, the tangential diameter and area of secretory canals were positively correlated with oleoresin yield. These results suggested that the tangential diameter and area of secretory canals are reliable indicators of the oleoresin amount and can be used for selection purposes in S. glabra.

scholarly journals Dataset of Targeted Metabolite Analysis for Five Taxanes of Hellenic Taxus baccata L. Populations

Data ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 22
Author(s):  
Eleftheria Dalmaris ◽  
Evangelia V. Avramidou ◽  
Aliki Xanthopoulou ◽  
Filippos A. Aravanopoulos
Keyword(s):  
Natural Populations ◽  
Population Level ◽  
Primary Sources ◽  
Taxus Baccata ◽  
Metabolite Analysis ◽  
Data Set ◽  
Baccatin Iii ◽  
Significant Seasonal Variation ◽  
Increasing Demand ◽  
Selection Of

Novel primary sources of one of the world’s leading anticancer agent, paclitaxel, as well as of other antineoplastic taxanes such as 10-deacetylbaccatin-III, are needed to meet an increasing demand. Among the Taxus species the promise of Taxus baccata L. (European or English yew) has been documented. In this study, the metabolite analysis of two marginal T. baccata populations in Greece (Mt. Cholomon and Mt. Olympus), located at the southeastern edge of the species natural distribution, are being explored. A targeted liquid chromatography – mass spectrometry (LC-MS/MS) analysis was used to determine the content of 10-deacetylbaccatin III, baccatin III, 10-deacetyltaxol, paclitaxel and cephalomannine in the needles of each of the populations from three sampling periods (spring, summer and winter). This is the first survey to generate a taxane targeted metabolite data set, since it derives from Hellenic natural populations that have not been explored before. Furthermore, it has used an extensive sample design in order to evaluate chemodiversity at the population level. The analysis revealed significant levels of chemodiversity within and among the investigated populations and significant seasonal variation that could be exploited for the selection of superior germplasm native to Greece, for yew plantations and further exploitation which is necessary for the production of important taxanes.

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