Adult Emergence Patterns and Species Distribution and Abundance of Tipulidae in Three Woodland Floodplains 1

1981 ◽  
Vol 10 (6) ◽  
pp. 915-921 ◽  
Author(s):  
Richard W. Merritt ◽  
Daniel L. Lawson
Keyword(s):  
Species Distribution ◽  
Adult Emergence ◽  
Emergence Patterns

Pupal Development and Adult Emergence Patterns of the Mexican Rice Borer (Lepidoptera: Pyralidae)

1995 ◽  
Vol 24 (1) ◽  
pp. 76-87 ◽  
Author(s):  
D. W. Spurgeon ◽  
P. D. Lingren ◽  
J. R. Raulston ◽  
T. N. Shaver
Keyword(s):  
Adult Emergence ◽  
Pupal Development ◽  
Emergence Patterns ◽  
Lepidoptera Pyralidae ◽  
Mexican Rice Borer

Contrasting patterns of genetic structure and disequilibrium in populations of a stone-cased caddisfly (Tasimiidae) from northern and southern Australia

2008 ◽  
Vol 59 (3) ◽  
pp. 235 ◽  
Author(s):  
Alicia Slater Schultheis ◽  
Richard Marchant ◽  
Jane Margaret Hughes
Keyword(s):  
Genetic Structure ◽  
Genetic Differentiation ◽  
Adult Emergence ◽  
Conclusive Evidence ◽  
Emergence Patterns ◽  
Freshwater Invertebrate ◽  
Gene Coi ◽  
Hardy Weinberg Equilibrium ◽  
New Recruits ◽  
Genetic Patchiness

In marine and freshwater invertebrate populations, microscale genetic differentiation or ‘genetic patchiness’ is thought to result from variation in the abundance and genetic composition of new recruits at a particular location. In the present study, the role of the adult emergence patterns in genetic patchiness was examined using mtDNA and two microsatellite loci to compare patterns of genetic differentiation in asynchronously (subtropical) and synchronously emerging (temperate) populations of the stone-cased caddisfly Tasimia palpata. A 550 base pair region of the mitochondrial cytochrome c oxidase subunit I gene (COI) was sequenced in at least 14 individuals from each population. Genetic structure was detected only at the reach scale in the subtropical populations and no genetic differentiation was detected in temperate populations. There were more deviations from Hardy–Weinberg equilibrium (HWE) in subtropical populations than in temperate populations where 44% and 12.5%, respectively, of tests for deviations from HWE were significant. Although distinct patterns of genetic structure and deviations from HWE were observed in the subtropical and temperate populations of T. palpata, no conclusive evidence was found to suggest that the differences are caused by differences in emergence patterns. We hypothesise that genetic patchiness must be caused by post-recruitment processes, most likely the preservation of oviposition ‘hotspots’ in subtropical streams.

Seasonal emergence patterns of Sitodiplosis mosellana (Diptera: Cecidomyiidae) in the Peace River region, Alberta, Canada

2021 ◽  
pp. 1-15
Author(s):  
Amanda Jorgensen ◽  
Maya L. Evenden ◽  
Owen Olfert ◽  
Jennifer Otani
Keyword(s):  
Adult Emergence ◽  
Geographic Region ◽  
Invasive Pest ◽  
Phenological Model ◽  
Sitodiplosis Mosellana ◽  
Peace River ◽  
Wheat Midge ◽  
Emergence Patterns ◽  
River Region ◽  
Accumulated Rainfall

Abstract Wheat midge, Sitodiplosis mosellana Géhin (Diptera: Cecidomyiidae), is an invasive pest of wheat, Triticum spp. (Poaceae), in North America and is found in all wheat-growing regions of the world. Wheat midge biology, particularly post-diapause emergence of adults, varies with geographic region. The biology of wheat midge has not previously been examined in the northernmost area of its range in Canada – the Peace River region of Alberta. Wheat midge adult emergence was compared in situ to two phenological models of wheat midge emergence developed in other geographic regions. In-field adult emergence did not match the published phenological models. In the Peace River region, adults emerged later than are predicted by both models and precision for both models was low. With the Saskatchewan model, accumulated rainfall that was more than 110 mm in May and early June delayed emergence, whereas accumulated rainfall that was less than 43 mm during that period caused earlier than predicted emergence. Multiple peaks of wheat midge emergence, up to 20 days apart, were observed at some sites, supporting the Jacquemin model depicting “waves” of emergence. Including differences in soil temperature accumulation related to precipitation and optimising the model temperature thresholds would improve accuracy of the current Canadian phenological model in the Peace River region.

Modeling adult emergence and fecundity of factitious hosts under different food sources supports massive egg production management

2017 ◽  
Vol 108 (2) ◽  
pp. 150-157 ◽  
Author(s):  
J. Tavares ◽  
L. Silva ◽  
L. Oliveira
Keyword(s):  
Mass Production ◽  
Egg Production ◽  
Production Management ◽  
Food Source ◽  
Adult Emergence ◽  
Food Sources ◽  
Food Type ◽  
Emergence Patterns ◽  
Lepidoptera Pyralidae ◽  
And Behavior

AbstractEphestia kuehniella(Lepidoptera, Pyralidae) andSitotroga cerealella(Lepidoptera, Gelechiidae) are important factitious hosts used for production of biological control agents. Their differences in terms of biology and behavior require adjustments in their mass production, particularly when using corn or barley as food in grain or in bran. We modeled adult emergence, oviposition period and egg production along time after emergence, as a function of the food source. Significant differences between hosts or food type were found for these variables and for adult weight but not for sex ratio. Our results confirm the possibility of mass production of these hosts using corn or barley as food source. Integrating adult emergence patterns and age specific fecundity patterns into a single model, it is clear that rearingE. kuehniellaon barley would result in the highest egg output in much shorter time thanE. kuehniellaon corn orS. cerealellaon barley.

Adult Emergence Patterns, Population Trends and Activity Patterns of the Hickory Shuckworm, Cydia caryana (Lepidoptera: Tortricidae: Olethreutinae) in Pecan Orchards

1994 ◽  
Vol 29 (4) ◽  
pp. 526-533
Author(s):  
John R. McVay ◽  
Raymond D. Eikenbary ◽  
Robert D. Morrison ◽  
Costas A. Kouskolekas
Keyword(s):  
Activity Patterns ◽  
Adult Emergence ◽  
Population Trends ◽  
Activity Period ◽  
Pheromone Trapping ◽  
Emergence Patterns ◽  
Cydia Caryana

Emergence of hickory shuckworm, Cydia caryana (Fitch), adults from larval overwintering sites was bimodal. The major emergence peak occurred during the period of mid-March to mid-May and the smaller activity period during July and August. Pheromone trapping was effective for monitoring population trends during generations 1 and 5 of C. caryana but less so during generations 2, 3, and 4. Activity patterns suggest the species is crepuscular rather than truly nocturnal.

scholarly journals Patterns of adult emergence and mating in Micromus tasmaniae (Walker) (Neuroptera Hemerobiidae)

2009 ◽  
Vol 62 ◽  
pp. 179-183 ◽  
Author(s):  
A. Yadav ◽  
X.Z. He ◽  
Q. Wang
Keyword(s):  
Sexual Maturation ◽  
Adult Emergence ◽  
Maturation Period ◽  
Emergence Patterns ◽  
Significant Difference ◽  
Important Predator ◽  
Males And Females

The Tasmanian lacewing Micromus tasmaniae Walker is an important predator of a number of economically important pests such as aphids This study was to investigate the patterns of adult emergence sexual maturation and mating of M tasmaniae in the laboratory at 211C 60 RH and 168 h (lightdark) Results indicate that adult emergence peaked 3 h before the scotophase began There was no significant difference in emergence patterns between males and females (P>005) The sexual maturation period of males and females was 47825 h and 65131 h after emergence respectively and this difference was significant (P

scholarly journals What Limits the Distribution of Liriomyza huidobrensis and Its Congener Liriomyza sativae in Their Native Niche: When Temperature and Competition Affect Species’ Distribution Range in Guatemala

2017 ◽  
Vol 17 (4) ◽  
Author(s):  
G. Rodríguez-Castañeda ◽  
C. MacVean ◽  
C. Cardona ◽  
A. R. Hof
Keyword(s):  
Species Distribution ◽  
Agricultural Landscape ◽  
Adult Emergence ◽  
Distribution Range ◽  
Elevation Gradients ◽  
Liriomyza Sativae ◽  
Liriomyza Huidobrensis ◽  
Negative Effect ◽  
Herbivore Species ◽  
Maximum Temperatures

Abstract Factors limiting distribution range for most species are generally unknown regardless of whether they are native or invasive. We studied factors that could enable or restrict the distribution of two cosmopolitan invasive leafminer fly species, Liriomyza huidobrensis (Blanchard) and Liriomyza sativae (Blanchard) in their native niche. In order to test which ecological and environmental factors affect leafminer distribution we conducted thermal tolerance assays, sampled along elevation gradients and modeled species distribution. Findings from the field and rearing chambers showed a physiological restriction due to high temperatures for L. huidobrensis at 28–29 °C, above which adult emergence is compromised. We also found that maximum temperatures below 22 °C, typical of tropical highlands, favored L. huidobrensis. L. sativae was found across a wider temperature range (i.e., from 21 to 36 °C) in Guatemala. Our finding of a physiological threshold in temperature for L. huidobrensis may enable us to predict its invasive risk when combined with the environmental conditions at horticultural ports of entry and the global agricultural landscape. Further, it strengthens our predictions on shifts in distribution of the leafminer fly under future climate. We also found a temperature mediated competitive exclusion interaction between the two herbivore species, where L. sativae occurred at temperatures < 22 °C only in the absence of L. huidobrensis. We show that parasitoids had a negative effect on the leafminer flies, which varied with host plant. Finally, we show the importance of taking a multiaspect approach when investigating what limits distribution and invasiveness of a species.

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