Systematics and ecology of the genus Dendrozetes (Acari: Oribatida: Peloppiidae) from arboreal habitats in Western North America

Zootaxa ◽  
2010 ◽  
Vol 2403 (1) ◽  
pp. 10 ◽  
Author(s):  
ZOE LINDO ◽  
MARILYN CLAYTON ◽  
VALERIE BEHAN-PELLETIER
Keyword(s):  
North America ◽  
Pacific Northwest ◽  
Sequence Data ◽  
Oribatid Mite ◽  
First Record ◽  
Tsuga Heterophylla ◽  
Coi Gene ◽  
Silver Fir ◽  
Type Specimens ◽  
Molecular Sequence Data

We present the systematics and ecology of a new species of arboreal oribatid mite in the family Peloppiidae (Acari: Oribatida), Dendrozetes jordani n. sp., a dominant arthropod on branch tips and arboreal lichens associated with western hemlock (Tsuga heterophylla (Pinaceae)) and Pacific silver fir (Abies amabilis (Pinaceae)) in the coniferous temperate and montane forests of the Pacific Northwest of North America. Dendrozetes jordani represents the first record of the genus Dendrozetes in North America. The species is described on the basis of morphology of all active instars plus molecular sequence data for the mitochondrial cytochrome oxidase I (COI) gene. Dendrozetes jordani is compared with type specimens of D. caudatus Aoki from Japan, and a revised diagnosis of the genus Dendrozetes is given. Dendrozetes jordani has a stable, overlapping population structure through the year, and its association with trees in Pinaceae is an ecological characteristic shared with D. caudatus from Japan.

Systematics and ecology of Anachipteria geminus sp. nov. (Acari: Oribatida: Achipteriidae) from arboreal lichens in western North America

2008 ◽  
Vol 140 (5) ◽  
pp. 539-556 ◽  
Author(s):  
Zoë Lindo ◽  
Marilyn Clayton ◽  
Valerie M. Behan-Pelletier
Keyword(s):  
North America ◽  
Pacific Northwest ◽  
Sequence Data ◽  
Oribatid Mite ◽  
Dry Mass ◽  
Tsuga Heterophylla ◽  
Silver Fir ◽  
28S Rrna ◽  
Molecular Sequence Data ◽  
The Family

AbstractWe present the systematics and ecology of a new species of arboreal oribatid mite in the family Achipteriidae, Anachipteria geminussp. nov., a dominant arthropod in canopy lichens associated with western hemlock (Tsuga heterophylla (Raf.) Sarg. (Pinaceae)) and Pacific silver fir (Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes (Pinaceae)) in the coniferous temperate and montane forests of the Pacific Northwest of North America. The species is described on the basis of the morphology of all active instars plus molecular sequence data for the D3 region of the 28s rRNA (D3-28s) and mitochondrial cytochrome oxidase 1 (CO1) genes. Anachipteria geminus is the dominant oribatid mite in foliose lichens in the upper canopies of Pacific montane conifer trees. Specimens were found in 100% of canopy lichens sampled, and abundances can reach 1450 individuals / 100 g dry mass of lichen. Analysis of the population structure indicates that A. geminus has seasonally stable populations consistent with overlapping generations. Anachipteria geminus expresses morphological character states that require expanding the diagnoses of the genus Anachipteria and the family Achipteriidae. A revised diagnosis and morphological key to species of Anachipteria in Canada are given.

Phasmarhabditis hermaphrodita (Nematoda: Rhabditidae), a potential biocontrol agent isolated for the first time from invasive slugs in North America

Nematology ◽  
2014 ◽  
Vol 16 (10) ◽  
pp. 1129-1138 ◽  
Author(s):  
Irma Tandingan De Ley ◽  
Rory D. McDonnell ◽  
Sandy Lopez ◽  
Timothy D. Paine ◽  
Paul De Ley
Keyword(s):  
North America ◽  
Sequence Data ◽  
Control Strategies ◽  
Large Subunit ◽  
Small Subunit ◽  
Coi Gene ◽  
Lsu Rdna ◽  
Molecular Sequence Data ◽  
First Time ◽  
Phasmarhabditis Hermaphrodita

Phasmarhabditis hermaphroditais reported for the first time in North America from cadavers of the invasive slug speciesDeroceras reticulatum,D. laeveandLehmannia valentianacollected from three different locations in California, USA. Four isolates were identified using combined morphology, morphometrics and molecular sequence data for complete internal transcribed spacer (ITS-1, 5.8S, ITS-2), D2-D3 expansion segments of the large subunit (LSU or 28S) and nearly complete small subunit (SSU or 18S) ribosomal DNA. Extremely low sequence variations in the COI gene of the mitochondria were observed among US isolates as well as between US isolates and the two UK sequences. The occurrence ofP. hermaphroditain North America has regulatory implications for potential biological control strategies against non-native gastropod species that are pests in ornamental and agricultural cultivation on this continent. The D2-D3 sequence of the LSU rDNA is new for the species.

scholarly journals Introduced Prophysaon andersonii (J.G. Cooper, 1872) in Quebec, Canada: first record of Prophysaon (Gastropoda, Eupulmonata, Arionoidea) in eastern North America, confirmed by partial-COI gene sequence

Check List ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 307-316
Author(s):  
Annegret Nicolai ◽  
Robert G. Forsyth
Keyword(s):  
North America ◽  
New Record ◽  
Gene Sequence ◽  
Sequence Data ◽  
First Record ◽  
Coi Gene ◽  
Eastern North America ◽  
Western North America ◽  
Native Range ◽  
First Time

We report for the first time the terrestrial slug Prophysaon andersonii (J.G. Cooper, 1872) from Quebec, Canada. Two specimens were collected in Parc national du Bic. The identification was determined by the external morphology and partial-COI gene sequence data. The genus Prophysaon is endemic to western North America, and the new record indisputably represents an introduction. No species of Prophysaon has, until now, been noticed in North America from outside its native range.

scholarly journals New record of the monostiliferous hoplonemertean Gurjanovella littoralis Uschakov, 1926 from Japan (Nemertea, Hoplonemertea, Monostilifera)

Check List ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 265-269 ◽  
Author(s):  
Natsumi Hookabe ◽  
Hiroshi Kajihara
Keyword(s):  
Sea Of Okhotsk ◽  
White Sea ◽  
Sequence Data ◽  
First Record ◽  
Coi Gene ◽  
Northwest Pacific ◽  
Molecular Sequence Data ◽  
Molecular Sequence ◽  
The Sea Of Okhotsk ◽  
Northern Japan

A single specimen of a monostiliferous hoplonemertean, collected from a depth of 25 m in Akkeshi Bay, northern Japan, represents the first record of Gurjanovella littoralis Uschakov, 1926 from the Northwest Pacific. The species has been known only from the type locality, White Sea, Russia, although some planktonic larvae from Oregon, USA, and a juvenile from the Sea of Okhotsk have been identified as a member of the genus by molecular sequence data. Our specimen differs from a topotype from the White Sea by 2.9% of uncorrected p-distance and 3.0% of K2P in terms of partial 658-bp sequence of the mitochondrial cytochrome c oxidase subunit I (COI) gene. Our COI phylogenetic tree indicates that each of the larvae from Oregon and the Sea of Okhotsk belongs in Gurjanovella but represents a different species from G. littoralis.

scholarly journals Diversity of Peloppiidae (Oribatida) in North America

Acarologia ◽  
2018 ◽  
Vol 58 (Suppl) ◽  
pp. 91-97
Author(s):  
Zoë Lindo
Keyword(s):  
New Species ◽  
North America ◽  
Pacific Northwest ◽  
Boreal Forests ◽  
Oribatid Mite ◽  
Type Specimens ◽  
The Status ◽  
Established Species ◽  
Mite Family ◽  
Forest Habitats

Members of the oribatid mite family Peloppiidae are found throughout the Holarctic in subarctic and arctic habitats, and temperate and boreal forests, and while common, are rarely collected in high abundance. Pacific Northwest forest habitats of western Canada have high relative diversity of peloppiid mites representing species of the genera Ceratoppia, Dendrozetes, and Metrioppia. Many of these are newly described species that are seemingly endemic to the region. Here I review the status and diversity of Peloppiidae from North America, and summarize the distributions of described species. Despite recent efforts, significant work remains. Within Ceratoppia two widely-distributed and established species have considerable morphological variation, while the type specimens are missing or destroyed, making confirmation of new specimens difficult. For other genera, extensive review of the Canadian National Collections in Ottawa, Canada suggest there are at least four undescribed species of North American Peloppiidae - two potentially new species of Paenoppia, and new species each of Parapyroppia and Pyroppia.

A review of the ecology and distribution of Protoribates (Oribatida, Oripodoidea, Haplozetidae) in Alberta, Canada, with the description of a new species

Zootaxa ◽  
2013 ◽  
Vol 3620 (3) ◽  
pp. 483-499 ◽  
Author(s):  
DAVID EVANS WALTER ◽  
SARAH LATONAS
Keyword(s):  
New Species ◽  
North America ◽  
Oribatid Mite ◽  
Gut Contents ◽  
Plant Cell Walls ◽  
Type Specimens ◽  
Peat Soils ◽  
The North ◽  
Opportunistic Predator ◽  
A New Species

The oribatid mite genus Protoribates Berlese (Haplozetidae) is reviewed for North America and the genus diagnosis is revised to account for the North American species, Protoribates robustior (Jacot, 1937) is redescribed and newly reported from western North America and a new species from Alberta is described. Protoribates haughlandae sp. n. is bisexual, heterotridactylous, and lives primarily in the peat soils of fens and bogs. Protoribates robustior is all-female, monodactylous, and occurs primarily in dry forests or in dry, treeless sites dominated by grasses, sedges, and shrubs. Both species feed on fungal hyphae and spores, but P. haughlandae also is an opportunistic predator and/or necrophage of small arthropods and P. robustior gut contents often include material that resembles plant cell walls. Examination of type specimens confirms that Protoribates prionotus (Woolley, 1968) is a junior synonym of the widespread Protoribates lophotrichus (Berlese, 1904). A key to differentiate Lagenobates from Protoribates and to identify the 7 species of the latter that are known or reported from North America is provided.

scholarly journals Temporal Asynchrony of Adult Emergence Between Leucopis argenticollis and Leucopis piniperda (Diptera: Chamaemyiidae), Predators of the Hemlock Woolly Adelgid (Hemiptera: Adelgidae), with Implications for Biological Control

2020 ◽  
Vol 49 (4) ◽  
pp. 823-828
Author(s):  
Alex N Neidermeier ◽  
Darrell W Ross ◽  
Nathan P Havill ◽  
Kimberly F Wallin
Keyword(s):  
Biological Control ◽  
North America ◽  
Pacific Northwest ◽  
Adult Emergence ◽  
Hemlock Woolly Adelgid ◽  
Adelges Tsugae ◽  
Tsuga Heterophylla ◽  
Eastern North America ◽  
Biological Control Agents ◽  
The Pacific

Abstract Two species of silver fly, Leucopis argenticollis (Zetterstedt) and Leucopis piniperda (Malloch) (Diptera: Chamaemyiidae), from the Pacific Northwest region of North America have been identified as potential biological control agents of hemlock woolly adelgid (Hemiptera: Adelgidae: Adelges tsugae Annand) in eastern North America. The two predators are collectively synchronized with A. tsugae development. To determine whether adult emergence of the two species of silver fly are also synchronized with one another, we collected adult Leucopis which emerged from A. tsugae-infested western hemlock [Pinaceae: Tsuga heterophylla (Raf.) Sarg.] from four sites in the Pacific Northwest over a 29-d period. Specimens were collected twice daily in the laboratory and identified to species using DNA barcoding. The study found that more adult Leucopis were collected in the evening than the morning. Additionally, the daily emergences of adults over the 29-d sampling period exhibited sinusoidal-like fluctuations of peak abundance of each species, lending evidence to a pattern of temporal partitioning. This pattern could have logistical implications for their use as biological control agents in eastern North America, namely the need to release both species for maximum efficacy in decreasing A. tsugae populations.

Phylogenetic relationships among Unionicola (Acari: Unionicolidae) mussel-mites of North America based on mitochondrial cytochrome oxidase I sequences

Zootaxa ◽  
2010 ◽  
Vol 2537 (1) ◽  
pp. 47 ◽  
Author(s):  
DALE D. EDWARDS ◽  
MALCOLM F. VIDRINE ◽  
BRIAN R. ERNSTING
Keyword(s):  
North America ◽  
Cytochrome Oxidase ◽  
Phylogenetic Relationships ◽  
Sequence Data ◽  
Bootstrap Support ◽  
Cox1 Gene ◽  
Symbiotic Association ◽  
Gene Trees ◽  
Molecular Sequence Data ◽  
Molecular Sequence

Water mites of the genus Unionicola Haldeman, 1842 are common symbionts of molluscs, living on the gills or mantle and foot of their hosts and using these tissues as sites of oviposition. Phylogenetic relationships among species that comprise the genus are poorly understood and what is known has been based on a limited number of morphological and life history characters or molecular sequence data using closely-related taxa. The present study uses sequence data from the cytochrome oxidase subunit I (cox1) gene (664 bp) to reconstruct evolutionary relationships among representative species of North American Unionicola from eight subgenera that occur in symbiotic association with freshwater mussels. Maximum parsimony and maximum likelihood analysis yielded trees with similar topologies, and most of the branches have moderate to high bootstrap support. The topologies of these gene trees are mostly congruent with a previously published morphologically-derived tree. Specifically, the gene trees support monophyly among mites from subgenera that occur in association with the gill tissues of host mussels. The molecular trees of Unionicola mites generated by this study must, however, be interpreted with caution, given that the analysis is based exclusively on Unionicola subgenera from North America. A more robust phylogeny of Unionicola mussel-mites will require the addition of molecular sequence data from taxa outside of North America.

Nematodes associated with terrestrial slugs from canola fields and ornamental nurseries in South Africa

Zootaxa ◽  
2017 ◽  
Vol 4312 (1) ◽  
pp. 194 ◽  
Author(s):  
ANNIKA PIETERSE ◽  
ANTOINETTE P. MALAN ◽  
LAURA M. KRUITBOS ◽  
WILLEM SIRGEL ◽  
JENNA L. ROSS
Keyword(s):  
South Africa ◽  
Sequence Data ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Nematode Species ◽  
First Record ◽  
Small Subunit ◽  
Western Cape ◽  
Molecular Sequence Data ◽  
Molecular Sequence

A survey of nematodes that use terrestrial slugs as definitive hosts, was conducted in canola fields and ornamental nurseries located in the Western Cape province of South Africa. A total of 3290 slugs were collected from 22 different sites. On the identification of the slugs, they were vivisected and examined for internal nematodes. After identifying the nematodes found, on the basis of their morphological characteristics, their identity was confirmed using molecular sequence data for the internal transcribed spacer (ITS-1, 5.8S, ITS-2), D2-D3 expansion segments of the large subunit (LSU or 28S) and small subunit (SSU or 18S) ribosomal DNA. Of the 22 sites investigated, 13 had nematodes present, with 8 % of the slugs being found to be infected with nematodes. Seven nematode species were confirmed, including Agfa flexilis, Angiostoma margaretae, Angiostoma sp. (SA1), Caenorhabditis elegans, mermithid sp. (SA1), Phasmarhabditis sp. (SA3) and Phasmarhabditis sp. (SA4). In addition, several Angiostoma spp. were also isolated, but could only be identified to genus level due to limited material. Of the seven confirmed species, four were previously undescribed. This is the first record of A. margaretae associating with Deroceras panormitanum, Deroceras reticulatum, Lehmannia valentiana and Oopelta polypunctata. Also, this is the first time that a mermithid has been found associating with molluscs in South Africa. 

scholarly journals Nephila clavata L. Koch, the Joro Spider of East Asia, newly recorded from North America (Araneae: Nephilidae)

2014 ◽  
Author(s):  
E. Richard Hoebeke ◽  
Wesley Huffmaster ◽  
Byron J Freeman
Keyword(s):  
North America ◽  
East Asia ◽  
Native Species ◽  
Genomic Sequence ◽  
Sequence Data ◽  
Coi Gene ◽  
Background Information ◽  
Invasion History ◽  
Nephila Clavipes ◽  
Species Identity

Nephila clavata L. Koch, known as the Joro spider and native to East Asia (Japan, China, Korea, and Taiwan), is newly reported from North America. Specimens from several locations in northeast Georgia were collected from around residential properties in Barrow, Jackson, and Madison counties in late October and early November 2014. These are the first confirmed records of the species in the New World. Our collections, along with confirmed images provided by private citizens, suggest the Joro spider is established in northeast Georgia. Genomic sequence data for the COI gene obtained from two specimens conforms to published sequences for N. clavata, providing additional confirmation of species identity. Known collection records are listed and mapped using geocoding. Our observations are summarized along with published background information on biology in Asia and we hypothesize on the invasion history and mode of introduction into North America. Recognition features are given and photographic images of the male and female are provided to aid in their differentiation from the one native species of the genus (Nephila clavipes) in North America.

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