Incidence of pinewood nematode dauerlarvae and phoretic mites associated with long-horned beetles in central Louisiana

1987 ◽  
Vol 17 (2) ◽  
pp. 187-190 ◽  
Author(s):  
D. N. Kinn
Keyword(s):  
Abundant Species ◽  
Mite Species ◽  
Pinewood Nematode ◽  
Laboratory Conditions ◽  
Horned Beetle ◽  
Horned Beetles

In central Louisiana, Monochamustitillator and M. carolinensis are the principle vectors of dauerlarvae of the pinewood nematode. Although proportionally more M. carolinensis carry the nematode, M. titillator is the more abundant species. Neacanthocinusobsoletus, a common long-horned beetle found in dead pines, seldom carries the pinewood nematode. Twelve species of mites are found to have instars phoretic on these cerambycids. More species of mites are associated with M. titillator than with N. obsoletus and, with the exception of Histiogasterarborsignis, mites are more numerous on M. titillator. Longoseiuscuniculus, Trichouropodalamellosa, T. hirsuta, and Histiogaster spp. are the most common mite species. Deutonymphs of the two Trichouropoda spp. and Dendrolaelapsvaripunctatus were observed to prey upon the pinewood nematode under laboratory conditions.

Free-living mesostigmatic mites in Australia: their roles in biological control and bioindication

2007 ◽  
Vol 47 (4) ◽  
pp. 460 ◽  
Author(s):  
F. Beaulieu ◽  
A. R. Weeks
Keyword(s):  
Biological Control ◽  
Native Species ◽  
Agricultural Practices ◽  
Abundant Species ◽  
Mite Species ◽  
Free Living ◽  
Phytophagous Mites ◽  
Successful Control ◽  
Managed Landscapes ◽  
Sustainable Agricultural Practices

The taxonomy, biology and ecology of free-living mesostigmatic mites in Australia and their current and potential use in biological control and bioindication is reviewed. Most current research on free-living Mesostigmata in Australia focuses on species with an established role in the biocontrol of crop pests, such as members of the family Phytoseiidae. Three introduced species and at least seven native species of Phytoseiidae are presently used for the control of phytophagous mites in Australia. The introduced phytoseiids are mostly specific to spider mites and have been selected for resistance to some of the common pesticides. Native species provide the advantage of being generalist feeders and are capable of using alternative food in the absence of mite pests. Therefore they can persist more effectively in the environment and contribute to the control of several pests. The reduced and selective use of pesticides, accompanied by scouting services, has allowed the successful control of phytophagous mites by native species in several Australian tree crops, especially grapevine and citrus. In soils, Mesostigmata are extremely abundant, species-rich and play significant ecological roles. They feed on a broad range of invertebrates, including phytophagous pests that spend part or most of their lives on or in the soil or root systems. However, the majority of mesostigmatic mite species are unknown in Australia. Nevertheless, recent research indicates that many species are habitat-specific, and that they may be sensitive to agricultural practices and other land management systems. Mesostigmata have great potential for biological control of pests, and as indicators of soil quality and sustainable agricultural practices. However, the current paucity of research and information on the taxonomy, life-history and ecology of native species in natural and managed landscapes will continue to hinder their use in biological control and as bioindicators.

scholarly journals Completely engaged three-dimensional mandibular gear-like structures in the adult horned beetles: reconsideration of bark-carving behaviors (Coleoptera, Scarabaeidae, Dynastinae)

ZooKeys ◽  
2019 ◽  
Vol 813 ◽  
pp. 89-110 ◽  
Author(s):  
Wataru Ichiishi ◽  
Shinpei Shimada ◽  
Takashi Motobayashi ◽  
Hiroaki Abe
Keyword(s):  
Three Dimensional ◽  
Surface Structures ◽  
The Other ◽  
Primary Role ◽  
Beetle Species ◽  
Tree Sap ◽  
Horned Beetle ◽  
Horned Beetles

Adult horned beetles (Coleoptera, Scarabaeidae, Dynastinae) such as Trypoxylusdichotomus (Linnaeus, 1771) exhibit bark-carving behaviors to feed on tree sap, in part by using small projections of the clypeus. However, in the present experiments, adult horned beetles (T.dichotomus and Dynasteshercules (Linnaeus, 1758)) used their mandibles and not the projections of the clypeus to carve bark. Our findings show the presence of completely engaged mandibular interlocking, gear-like surface structures in molar areas that guide mandible opening and closure, and lead to completely synchronous movements of adult horned beetle mandibles. Three-dimensional shapes of these mandibular gear-like structures are complex and remained in contact after the death of a beetle. Moreover, adult horned beetles often performed bark-carving behaviors using only the mandible of one side, suggesting that the primary role of the mandibular gear-like structure is to prevent breakage of the mandible by transmitting load from one mandible to the other. Among the 22 Dynastinae and 16 other beetle species examined (not Dynastinae), the gear-like structure was found in all the Dynastinae species and in no other species.

New edaphic mites of the genus Veigaia from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)

Zootaxa ◽  
2008 ◽  
Vol 1897 (1) ◽  
pp. 1-19 ◽  
Author(s):  
PETER MAŠÁN ◽  
PETER FENĎA ◽  
IVAN MIHÁL
Keyword(s):  
Abundant Species ◽  
Mite Species ◽  
Carpathian Mountains ◽  
European Species ◽  
Ecological Information

Five new European mite species (Acari: Veigaiidae) are described from the Carpathian Mountains in Slovakia and the Stara Planina Mountains in Bulgaria: Veigaia carpathica Mašán & Fenďa, sp. nov., V. incisilobata Mašán, sp. nov., V. pentachaeta Mašán, sp. nov., V. slovaca Mašán, sp. nov., and V. vermiculifera Mašán, sp. nov. Ecological information is provided for the most common and abundant species, V. carpathica and V. slovaca. A new key to the females of the European species of Veigaia is provided.

Community structure and dispersal of mites (Acari, Mesostigmata) in nests of the white stork (Ciconia ciconia)

Biologia ◽  
2006 ◽  
Vol 61 (5) ◽  
Author(s):  
Daria Bajerlein ◽  
Jerzy Błoszyk ◽  
Dariusz Gwiazdowicz ◽  
Jerzy Ptaszyk ◽  
Bruce Halliday
Keyword(s):  
Community Structure ◽  
Abundant Species ◽  
Mite Species ◽  
White Stork ◽  
Nest Material ◽  
Ciconia Ciconia ◽  
The Family ◽  
Before And After

AbstractThe fauna of Mesostigmata in nests of the white stork Ciconia ciconia was studied in the vicinity of Poznań (Poland). A total of 37 mite species was recovered from 11 of the 12 nests examined. The mite fauna was dominated by the family Macrochelidae. Macrocheles merdarius was the most abundant species, comprising 56% of all mites recovered. Most of the abundant mite species were associated with dung and coprophilous insects. It is likely that they were introduced into the nests by adult storks with dung as part of the nest material shortly before and after the hatching of the chicks.

Biological Aspects of Four Mite Species under Laboratory Conditions

2016 ◽  
Vol 10 (1) ◽  
pp. 41-44
Author(s):  
A. Metwally ◽  
A. Abd-Allah ◽  
Hala Gamal El-Din ◽  
Hala El-Beltagy
Keyword(s):  
Mite Species ◽  
Laboratory Conditions ◽  
Biological Aspects

Nests of the black stork Ciconia nigra as a habitat for mesostigmatid mites (Acari: Mesostigmata)

Biologia ◽  
2009 ◽  
Vol 64 (5) ◽  
Author(s):  
Jerzy Błoszyk ◽  
Dariusz Gwiazdowicz ◽  
Bruce Halliday ◽  
Paweł Dolata ◽  
Bartłomiej Gołdyn
Keyword(s):  
Abundant Species ◽  
Predatory Mites ◽  
Mite Species ◽  
Preliminary Results ◽  
Large Numbers ◽  
Ciconia Nigra ◽  
Black Stork ◽  
Eggs And Larvae

AbstractWe surveyed the Mesostigmatid mite fauna of nests of the black stork Ciconia nigra, to determine the role of these mites in the biology of their hosts. We present preliminary results obtained on the basis of material collected from 31 nests. A total of 1,615 mite specimens was recorded, belonging to 39 species. The most abundant species were Dendrolaelaps strenzkei, Apionoseius infirmus, Macrocheles merdarius and Macrocheles ancyleus, which constituted more than 65% of all the specimens recorded. The presence of large numbers of predatory mites could be beneficial to the birds, if they feed on the eggs and larvae of the bird’s parasites. It is likely that many of the mite species found in these nests were carried there by phoresy on insects, mainly Coleoptera.

scholarly journals Epigenetic Mechanisms Underlying Developmental Plasticity in Horned Beetles

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Sophie Valena ◽  
Armin P. Moczek
Keyword(s):  
Epigenetic Regulation ◽  
Developmental Plasticity ◽  
Biological Significance ◽  
Model System ◽  
Developmental Genetics ◽  
Epigenetic Mechanisms ◽  
Future Studies ◽  
Horned Beetle ◽  
Compare And Contrast ◽  
Horned Beetles

All developmental plasticity arises through epigenetic mechanisms. In this paper we focus on the nature, origins, and consequences of these mechanisms with a focus on horned beetles, an emerging model system in evolutionary developmental genetics. Specifically, we introduce the biological significance of developmental plasticity and summarize the most important facets of horned beetle biology. We then compare and contrast the epigenetic regulation of plasticity in horned beetles to that of other organisms and discuss how epigenetic mechanisms have facilitated innovation and diversification within and among taxa. We close by highlighting opportunities for future studies on the epigenetic regulation of plastic development in these and other organisms.

scholarly journals Three species of bark beetles (Coleoptera: Curculionidae, Scolytinae) on Pinus peuce in Pirin Mountains in Bulgaria

2021 ◽  
Vol 22 (2) ◽  
pp. 69-72
Author(s):  
Sevdalin Belilov ◽  
Georgi Georgiev ◽  
Plamen Mirchev ◽  
Margarita Georgieva
Keyword(s):  
Bark Beetles ◽  
Abundant Species ◽  
Pityogenes Chalcographus ◽  
Laboratory Conditions ◽  
Pinus Peuce

In 2020 and 2021, three species of bark beetles (Coleoptera: Curculionidae, Scolytinae) were established on Macedonian pine (Pinus peuce) in the region of Vihren hut in Pirin Mts. Branches, damaged by snow were collected and studied in laboratory conditions. As a result, 24 specimens of Ips amitinus were reared in 2020 and 81 specimens of I. amitinus, Crypturgus pusillus and Pityogenes chalcographus in 2021. The most abundant species was I. amitinus with 75.2%, followed by P. chalcographus (21.9%) and C. pusillus (2.9%).

scholarly journals Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China

2021 ◽  
Vol 59 (4) ◽  
pp. 377-392
Author(s):  
Fan Ding ◽  
Wen-Li Jiang ◽  
Xian-Guo Guo ◽  
Rong Fan ◽  
Cheng-Fu Zhao ◽  
...  
Keyword(s):  
Species Abundance ◽  
Abundant Species ◽  
Mite Species ◽  
Species Abundance Distribution ◽  
Chigger Mite ◽  
Geographical Regions ◽  
Rattus Tanezumi ◽  
Curve Equation ◽  
Large Host ◽  
Very High

This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was. Ŝ (R)=37e–(0.28R)2 The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chigger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographical regions with large host samples are recommended in the investigations of chigger mites.

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