A Synoptic List of the Parasites of Scolytidae (Coleoptera) in North America North of Mexico

1965 ◽  
Vol 97 (5) ◽  
pp. 449-492 ◽  
Author(s):  
Richard W. Bushing
Keyword(s):  
North America ◽  
American Literature ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Beetle Species ◽  
The North ◽  
Alphabetical List ◽  
Host Parasite ◽  
North America North ◽  
Seasonal History

AbstractA resumé of the North American literature concerned with hymenopterous parasites of bark beetles is presented. Morphology, seasonal history, host-tree selection, hyperparasitism, importation and colonization and their influence upon control of the host are briefly discussed.Parasites of a given host or hosts of a known parasite can easily be found in two different lists. Parasites are listed below in an alphabetical list of bark beetle species. Hosts, including some species other than bark beetles, are listed under a separate list of parasite families and genera. Host-parasite associations in each list are supported by a numerical reference to the literature cited.

scholarly journals Spatial distribution of four spruce bark beetles in north-western Slovakia

2008 ◽  
Vol 53 (Special Issue) ◽  
pp. 45-52 ◽  
Author(s):  
M. Turčáni ◽  
T. Hlásny
Keyword(s):  
Spatial Distribution ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Control Measures ◽  
Beetle Species ◽  
Study Region ◽  
The North ◽  
Spruce Bark ◽  
Infestation Density ◽  
Study Species

Infestation density of four the most common spruce bark beetle species was estimated on 15 study sites (10 trees per site) in the Kysuce model region in 2006. Five half-metre long sections of the stem were selected and dissected at the base of the stem; midway between the base of the stem and the base of the crown; just below the base of the crown; in the middle of the crown; and in the upper part of the crown. The infestation density of bark beetles, expressed as the number of mating chambers per dm<sup>2</sup>, was determined. Ordinary kriging was then used to produce smooth maps and visualize spatial distribution of study species. Maps with isolines indicating high infestation were produced for study species (<I>I. Typographus</I> over 0.38; (<I>I. amitinu</I>s over 0.15; (<I>I. duplicatus</I> over 0.11; and <I>P. chalcographus</I> over 0.415 nuptial chambers per dm<sup>2</sup>). <I>Ips typographus</I> L. remained dominant species on majority of sites having high intensity of infestation. Lower altitudes in the south-eastern part of the region were often infested by <I>I. duplicatus</I> Sahlberg and also by <I>I. typographu</I> and <I>Pityogenes chalcographus</I> L. Higher elevations in the north-eastern part of territory in the vicinity of border with Poland were heavily infested by <I>I. amitinus</I> Eichhoff (often with <I>I. typographus). P. chalcographus</I> was abundant on majority of territory – mainly in southern half of area. However locally, it was found in extremely high abundance. The results suggest the need for control measures set up jointly against the most abundant bark beetle species in study region.

scholarly journals Managing bark beetle outbreaks (Ips typographus, Dendroctonus spp.) in conservation areas in the 21st century

2016 ◽  
Vol 77 (4) ◽  
pp. 352-357
Author(s):  
Dominik Kulakowski
Keyword(s):  
North America ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Tree Mortality ◽  
Forest Health ◽  
Scientific Data ◽  
Timber Production ◽  
Conservation Areas ◽  
Silvicultural Treatments ◽  
Social Scientific

Abstract Forests in Europe and North America are being affected by large and severe outbreaks of bark beetles, which have caused widespread concern about forest health and have led to proposals for tree removal in affected or susceptible forests. Any such intervention, as well as broader decisions of whether any active interventions are appropriate, should be based on the best scientific data. This is true for all forests, including those whose purposes include timber production, watershed protection, biogeochemical function and recreation, and especially protected and conservation areas as the latter often provide particularly unique and important cultural, social, scientific and other ecosystem services. Here, I summarize peer-reviewed literature on the effects of bark beetle outbreaks and on silvicultural treatments aimed at mitigating beetle-induced tree mortality. From an objective scientific perspective, beetle outbreaks do not destroy forests. Instead, in many cases they play an important role in promoting wildlife, biodiversity and other ecological services. The best available data indicate that logging in conservation areas is unlikely to stop ongoing bark beetle outbreaks and instead may be more ecologically detrimental to the forests than the outbreaks themselves. If the purpose of a forest is timber production, then logging is desirable and can be planned based on appropriate analyses of timber yield and economic profit. However, in areas in which conservation is the determined goal, it is recommended that cutting trees be limited to removing hazards, such as trees that might fall in areas of high human activity in order to limit property damage and personal injury. Based on extensive research in Europe and North America, logging beetle-affected forests is inconsistent with most conservation goals.

Late Glacial and Holocene records of tree-killing conifer bark beetles in Europe and North America: Implications for forest disturbance dynamics

The Holocene ◽  
2020 ◽  
Vol 30 (6) ◽  
pp. 847-857 ◽  
Author(s):  
Nick Schafstall ◽  
Niina Kuosmanen ◽  
Christopher J Fettig ◽  
Miloš Knižek ◽  
Jennifer L Clear
Keyword(s):  
North America ◽  
Bark Beetle ◽  
Fossil Record ◽  
Bark Beetles ◽  
Late Glacial ◽  
Ips Paraconfusus ◽  
Distribution Data ◽  
Dryocoetes Confusus ◽  
Combining Data ◽  
Fossil Records

Outbreaks of conifer bark beetles in Europe and North America have increased in scale and severity in recent decades. In this study, we identify existing fossil records containing bark beetle remains from the end of the Last Glacial Maximum (~14,000 cal. yr BP) to present day using the online databases Neotoma and BugsCEP and literature searches, and compare these data with modern distribution data of selected tree-killing species. Modern-day observational data from the Global Biodiversity Information Facility (GBIF) database was used to map recorded distributions from AD 1750 to present day. A total of 53 fossil sites containing bark beetle remains, from both geological and archeological sites, were found during our searches. Fossil sites were fewer in Europe ( n = 21) than North America ( n = 32). In Europe, 29% of the samples in which remains were found were younger than 1000 cal. yr BP, while in North America, remains were mainly identified from late Glacial (~14,000–11,500 cal. yr BP) sites. In total, the fossil records contained only 8 of 20 species we consider important tree-killing bark beetles in Europe and North America based on their impacts during the last 100 years. In Europe, Ips sexdentatus was absent from the fossil record. In North America, Dendroctonus adjunctus, Dendroctonus frontalis, Dendroctonus jeffreyi, Dendroctonus pseudotsugae, Dryocoetes confusus, Ips calligraphus, Ips confusus, Ips grandicollis, Ips lecontei, Ips paraconfusus, and Scolytus ventralis were absent. Overall, preserved remains of tree-killing bark beetles are rare in the fossil record. However, by retrieving bulk material from new and existing sites and combining data from identified bark beetle remains with pollen, charcoal, tree rings, and geochemistry, the occurrence and dominance of bark beetles, their outbreaks, and other disturbance events can be reconstructed.

PHEROMONES IN IPS (COLEOPTERA: SCOLYTIDAE): OCCURRENCE AND PRODUCTION

1972 ◽  
Vol 104 (12) ◽  
pp. 1967-1975 ◽  
Author(s):  
J. P. Vité ◽  
A. Bakke ◽  
J. A. A. Renwick
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Host Material ◽  
Beetle Species ◽  
New Host ◽  
Contact Pheromones ◽  
Functional Types ◽  
Feeding Aggregation

AbstractComparative gas chromatographic analyses of volatiles generated by Ips indicate the presence of cis- and trans-verbenol in hindguts of the 12 species investigated. The biosynthesis of verbenol does not require feeding, but instead results from the insect’s contact with oleoresin. Ipsdienol is the most frequently occurring pheromone in Ips species after feeding. Aggregation of these bark beetles appears to be regulated by two distinct functional types of pheromones, i.e. contact pheromones, produced and/or released upon contact with new host material, and frass pheromones, which require actual feeding in the new host’s tissues. The aggregation of aggressive bark beetle species seems to be largely dependent on contact pheromones, whereas the host’s susceptibility to feeding is indicated by the release of frass pheromones.

Revision of the North American species of the genus Entomacis (Hymenoptera: Diapriidae)

2004 ◽  
Vol 136 (3) ◽  
pp. 323-405 ◽  
Author(s):  
Matthew J. Yoder
Keyword(s):  
North America ◽  
North American ◽  
Species Group ◽  
North American Species ◽  
The North ◽  
The Status ◽  
Group Members ◽  
Character Complexes ◽  
Species Taxonomy ◽  
North America North

AbstractThe species of the genus Entomacis Foerster in North America north of Mexico are revised. Nineteen species (12 new), including 8 species of the Holarctic-wide perplexa species group, are keyed, described, and figured. These taxa are E. ambigua (Brues), E. apopkaensissp. nov., E. arcticasp. nov., E. cellariasp. nov., E. cepasp. nov., E. eorariasp. nov., E. floridana (Ashmead), E. grandiclavasp. nov., E. longii (Ashmead), E. mellipetiola (Ashmead), E. parambiguasp. nov., and perplexa group members E. californica (Ashmead), E. microbipunctatasp. nov., E. notioxerasp. nov., E. oulasp. nov., E. parvasp. nov., E. perplexa (Haliday), E. sapratasp. nov., and E. subemarginata (Ashmead). Hemilexodes canadensis (Harrington) is synonymized under Entomacis mellipetiola (Ashmead) (syn. nov.). The status of Entomacis latipennis (Ashmead), E. filiformis (Ashmead), and Hemilexis jessei Mann is reviewed. New character complexes, particularly chaetotaxy, are emphasized for Diapriidae species taxonomy.

scholarly journals BARK BEETLE SPECIES OF IPS GENUS POSING A THREAT TO RUSSIAN FORESTS

2021 ◽  
pp. 48-54
Author(s):  
М.В. Воробьева ◽  
Н.П. Бунькова ◽  
П.Н. Сураев ◽  
И.А. Фефелова
Keyword(s):  
Natural Disasters ◽  
Bark Beetle ◽  
Russian Federation ◽  
Bark Beetles ◽  
Fungal Spores ◽  
Extreme Weather ◽  
Beetle Species ◽  
Natural Range ◽  
Russian Forests ◽  
The Russian Federation

На основе литературных материалов и результатов собственных исследований авторов проанализированы короеды рода Ips. Отмечается, что в мировой фауне зарегистрировано 37 видов коро- едов данного рода, в том числе восемь распространено на территории Российской Федерации. короеды данного рода повреждают флоэму и камбий, как правило, у ослабленных и отмирающих деревьев. Не- редко они заселяют поваленные ветром деревья и неокоренную лесопродукцию. В то же время в экстре- мальные по погодным условиям годы или после стихийных бедствий (засуха, штормовой ветер и др.) численность короедов резко возрастает, и они приводят к гибели не только отдельные жизнеспособные деревья, но и древостои. кроме того, короеды являются переносчиками спор грибов, приводящих к де- струкции древесины. В работе приведен перечень видов короедов рода Ips, дано описание биологии не- которых видов и рекомендации по недопущению их распространения за пределы естественного ареала. Ключевые слова: короеды, Ips, биологические особенности, виды, карантин, вредоносность. Финансирование. Работа выполнена в рамках темы FEUG – 2020 – 0013 «Экологические аспекты рационального природопользования». Bark beetles of the Ips genus were analyzed on the barks of literature materials and the results of the authors own research. It is noted that 37 species of bark beetles of this genus have been recorded in the wored fauna, including 8 common on the territory of the Russian Federation. Bark beetles of this genus damage their cambium, as a rule in weakened and dying trees. Often they inhabit trees felled by the wind and forest product uncovered with bark. However, in extreme weather years or after natural disasters (drought, storm, wind and other) number of bark beetles increases shar ply and they this results in the death not only individual viable trees, but also the whole stand. In addition, bark beetles are carriers of fungal spores, leading to the destruction of wood. The work provides a list of bark beetles species of Ips genus, the description of the biology of some species is given, as well as recommendations for preventing their spreading outside the natural range.

scholarly journals Comparative Analysis of Eight Mitogenomes of Bark Beetles and Their Phylogenetic Implications

Insects ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 949
Author(s):  
Huicong Du ◽  
Jiaxing Fang ◽  
Xia Shi ◽  
Sufang Zhang ◽  
Fu Liu ◽  
...  
Keyword(s):  
Codon Usage ◽  
Bark Beetle ◽  
Phylogenetic Relationships ◽  
Bark Beetles ◽  
Sequence Data ◽  
Stop Codon ◽  
Structural Characteristics ◽  
Gene Arrangement ◽  
Beetle Species ◽  
Phylogenetic Implications

Many bark beetles of the subfamily Scolytinae are the most economically important insect pests of coniferous forests worldwide. In this study, we sequenced the mitochondrial genomes of eight bark beetle species, including Dendroctonus micans, Orthotomicus erosus, Polygraphus poligraphus, Dryocoetes hectographus, Ips nitidus, Ips typographus, Ips subelongatus, and Ips hauseri, to examine their structural characteristics and determine their phylogenetic relationships. We also used previously published mitochondrial genome sequence data from other Scolytinae species to identify and localize the eight species studied within the bark beetle phylogeny. Their gene arrangement matched the presumed ancestral pattern of these bark beetles. Start and stop codon usage, amino acid abundance, and the relative codon usage frequencies were conserved among bark beetles. Genetic distances between species ranged from 0.037 to 0.418, and evolutionary rates of protein-coding genes ranged from 0.07 for COI to 0.69 for ND2. Our results shed light on the phylogenetic relationships and taxonomic status of several bark beetles in the subfamily Scolytinae and highlight the need for further sequencing analyses and taxonomic revisions in additional bark beetle species.

scholarly journals Bark beetle associated trematurid mites (Acari: Uropodina: Trematuridae) from Asian Russia with description of a new species

2019 ◽  
Vol 24 (9) ◽  
pp. 1592-1603 ◽  
Author(s):  
Jeno Kontschán ◽  
Gábor Szőcs ◽  
Balázs Kiss ◽  
Alexander A. Khaustov
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Beetle Species ◽  
New Associations ◽  
Polygraphus Proximus ◽  
Associated Species ◽  
A New Species ◽  
Different Parts

A new Oodinychus Berlese, 1917 species, O. scolytana sp. nov., was discovered and described from the galleries of bark beetles Polygraphus proximus Blandford from two different parts of Asian Russia. New associations are given for the trematurid mites and bark beetle species. Three bark beetle associated species from the Trichouropoda ovalis-group are moved into the genus Oodinychus as O. hirsuta (Hirschmann, 1972) comb. nov., O. rafalski (Wiśniewski & Hirschmann, 1984) comb. nov. and O. wilkinsoni (Hirschmann &Wiśniewski, 1986) comb. nov. Also, Oodinychus egypticus Abo-Shnaf, El-Bishlawy & Allam, 2018 is transferred to the genus Nenteria Oudemans, 1915.

Synopsis of the Nearctic Species of Stenodema Laporte, and Description of a New Species from Western Canada (Hemiptera: Miridae)

1961 ◽  
Vol 93 (6) ◽  
pp. 450-455 ◽  
Author(s):  
Leonard A. Kelton
Keyword(s):  
New Species ◽  
North America ◽  
American Literature ◽  
North American ◽  
Male Genitalia ◽  
Western Canada ◽  
The North ◽  
A New Species ◽  
Male Genital

Recent study of the male genitalia in the Miridae (Kelton, 1959) showed that the Palearctic Stenodema virens (L.) does not occur in North America. The six other species that have been reported in the North American literature are: dorsolis (Say), vicinum (Prov.), trispinosum Reut., sequoiae Bliven, falki Bliven, and imperii Bliven. The three species described by Bliven (1955, 1958) were not available to me for study, however, Bliven (1960) has recently published a paper containing figures of the male genital claspers of these species. These appear to differ considerably from those of virens, vicinum and trispinosum as well as amongst themselves.

Saproxylic community, guild and species responses to varying pheromone components of a pine bark beetle

2013 ◽  
Vol 103 (5) ◽  
pp. 497-510 ◽  
Author(s):  
Iñaki Etxebeste ◽  
José L. Lencina ◽  
Juan Pajares
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Sustainable Forest Management ◽  
Gaussian Model ◽  
Aggregation Pheromones ◽  
Delayed Response ◽  
Beetle Species ◽  
Saproxylic Beetle ◽  
By Catch ◽  
Associated Species

AbstractSome bark beetle species (Coleoptera: Scolytinae) produce aggregation pheromones that allow coordinated attack on their conifer hosts. As a new saproxylic habitat is founded, an assemblage of associated beetles kairomonally respond to bark beetle infochemicals. Ips sexdentatus is one of the major damaging insects of Pinus spp. in Southern Europe. Its response to varying ipsenol (Ie) percentages in relation to ipsdienol (Id) was studied in northwestern Spain, along with the entire saproxylic beetle assemblage captured at multiple-funnel traps. Response profile modeling was undertaken for I.sexdentatus sexes and sex-ratios, associated species and for selected trophic groups using a reference Gaussian model. In addition, the effects on the saproxylic assemblages were analyzed. I. sexdentatus response curve peaked at 22.7% Ie content, while remaining taxa that could be modeled, peaked above ca. 40% Ie. Predator guilds showed a linear relationship with Ie proportion, while competitors showed a delayed response peak. Consequently, species assemblages differed markedly between varying pheromone component mixtures. Given that the evaluated pheromonal proportions mimicked that of logs being colonized by I. sexdentatus, results suggested that the registered differential responses at different levels might provide I.sexdentatus with a temporal window that maximizes conspecific attraction while reducing interference with competitor and predatory guilds. Described responses might help improve the monitoring of the population status of target bark beetles and their associates, but also point toward the by-catch of many natural enemies, as well as rare saproxylic beetle species, interfering with the aims of sustainable forest management.

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