Bryophytes of the aspen parkland of west-central Canada

1969 ◽  
Vol 47 (1) ◽  
pp. 187-212
Author(s):  
C. D. Bird
Keyword(s):  
North America ◽  
North American ◽  
Habitat Types ◽  
West Central ◽  
As Species ◽  
Aspen Parkland ◽  
Central Canada ◽  
Species Groups ◽  
The Individual

One hundred and fifty-four taxa of bryophytes, including 15 hepatics, 2 peat mosses, and 137 mosses, are reported for the 255 000 km2 aspen parkland region of west-central Canada. Descriptions of the habitats and distribution of the individual taxa are given as well as species groups characteristic of the major habitat types. The following distributional elements are represented: Pan North American, 37%; Arctic–Boreal, 24%; Boreal, 21%; Eastern Boreal, 8%; Western Boreal, 1%; Cordilleran, 1%; Temperate, 5%; and Western Temperate, 1%. Only 3% of the taxa are endemic to North America.

Review of the genus Leioseius Berlese, 1916 in North America, with description of two new species (Acari: Mesostigmata: Ascidae)

2018 ◽  
Vol 23 (10) ◽  
pp. 1986
Author(s):  
Evert E. Lindquist ◽  
Maria L. Moraza
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
World Wide ◽  
North American Species ◽  
As Species ◽  
Two New Species ◽  
Species Groups ◽  
Biological Aspects ◽  
First Time

The genus Leioseius Berlese is reviewed, faunistically in North America, and taxonomically, world-wide. Descriptions of two new species, redescriptions of two previously recorded species, and first records of Leioseius elongatus Evans in North America are presented. Observations indicate that various leg setal and pretarsal attributes are useful in taxonomic discrimination of species in this genus. A key to North American species based on both idiosomatic and leg setal aspects is presented. Four species previously described under the genus Iphidozercon Berlese are accounted for the first time as species of Leioseius, and other taxa described previously as four yet other species of Leioseius are transferred to other genera. A tentative key, provided for separation of females of the 22 recognizable world Leioseius species, accounts for these changes. General morphological notes about mites of this genus are presented, some of which may lead to recognition of species-groups. Scant, general biological aspects about Leioseius mites are presented.

Interannual Variability of North American Winter Temperature Extremes and Its Associated Circulation Anomalies in Observations and CMIP5 Simulations

2020 ◽  
Vol 33 (3) ◽  
pp. 847-865 ◽  
Author(s):  
B. Yu ◽  
H. Lin ◽  
V. V. Kharin ◽  
X. L. Wang
Keyword(s):  
North America ◽  
Surface Temperature ◽  
Atmospheric Circulation ◽  
North American ◽  
North Pacific ◽  
Large Scale ◽  
Temperature Extremes ◽  
Temperature Extreme ◽  
Central Canada ◽  
Leading Mode

AbstractThe interannual variability of wintertime North American surface temperature extremes and its generation and maintenance are analyzed in this study. The leading mode of the temperature extreme anomalies, revealed by empirical orthogonal function (EOF) analyses of December–February mean temperature extreme indices over North America, is characterized by an anomalous center of action over western-central Canada. In association with the leading mode of temperature extreme variability, the large-scale atmospheric circulation features an anomalous Pacific–North American (PNA)-like pattern from the preceding fall to winter, which has important implications for seasonal prediction of North American temperature extremes. A positive PNA pattern leads to more warm and fewer cold extremes over western-central Canada. The anomalous circulation over the PNA sector drives thermal advection that contributes to temperature anomalies over North America, as well as a Pacific decadal oscillation (PDO)-like sea surface temperature (SST) anomaly pattern in the midlatitude North Pacific. The PNA-like circulation anomaly tends to be supported by SST warming in the tropical central-eastern Pacific and a positive synoptic-scale eddy vorticity forcing feedback on the large-scale circulation over the PNA sector. The leading extreme mode–associated atmospheric circulation patterns obtained from the observational and reanalysis data, together with the anomalous SST and synoptic eddy activities, are reasonably well simulated in most CMIP5 models and in the multimodel mean. For most models considered, the simulated patterns of atmospheric circulation, SST, and synoptic eddy activities have lower spatial variances than the corresponding observational and reanalysis patterns over the PNA sector, especially over the North Pacific.

EREMAEIDAE (ACARI: ORIBATIDA) OF NORTH AMERICA

1993 ◽  
Vol 125 (S168) ◽  
pp. 1-193 ◽  
Author(s):  
Valerie M. Behan-Pelletier
Keyword(s):  
New Mexico ◽  
North America ◽  
North American ◽  
Cladistic Analysis ◽  
High Arctic ◽  
North American Species ◽  
Sister Taxon ◽  
Species Groups ◽  
Relationship Of ◽  
The Relationship

AbstractThe oribatid family Eremaeidae is represented in North America by two genera, Eremaeus and Eueremaeus, both widely distributed throughout the Palaearctic and Nearctic regions. In North America species in both genera are found in moist to arid habitats from New Mexico to the High Arctic. Reproduction is sexual, and both immatures and adults feed mainly on fungi.Revised diagnoses are presented for the Eremaeidae and genera Eremaeus and Eueremaeus. Eighteen species of Eremaeus, of which 14 are newly proposed, and 24 species of Eueremaeus, of which 15 are newly proposed, are recognized. Identification keys are provided for the world genera of Eremaeidae, and for adults of Eremaeus and Eueremaeus of North America. All but one North American species of these genera are described, and their geographical distributions mapped.North American Eremaeus species include E. appalachicus sp. no v., E. boreomontanus sp. nov., E. brevitarsus (Ewing), E. californiensis sp. nov., E. gracilis sp. nov., E. grandis Hammer, E. kananaskis sp. nov., E. kevani sp. nov., E. megistos sp. nov., E. monticolus sp. nov., E. nortoni sp. nov., E. occidentalis sp. nov., E. oresbios sp. nov., E. plumosus Woolley, E. porosus sp. nov., E. salish sp. nov., E. translamellatus Hammer, and E. walteri sp. nov. The immatures of four of these, E. kananaskis, E. occidentalis, E. oresbios, and E. translamellatus, are described.North American Eueremaeus include Eu. acostulatus sp. nov., Eu. aridulus sp. nov., Eu. columbianus (Berlese), Eu. foveolatus (Hammer), Eu. marshalli sp. nov., Eu. masinasin sp. nov., Eu. michaeli sp. nov., Eu. nahani sp. nov., Eu. nemoralis sp. nov., Eu. proximus (Berlese) comb, nov., Eu. woolleyi (Higgins) comb, nov., Eu. yukonensis sp. nov., and three informal species groups with the following included species in North America: (1) Eu. trionus group—Eu. trionus (Higgins) comb, nov., (2) Eu. stiktos group—Eu. carinatus sp. nov., Eu. higginsi sp. nov., Eu. stiktos (Higgins) comb, nov., Eu. tetrosus (Higgins) comb, nov., (3) Eu. chiatous group—Eu. alvordensis sp. nov., Eu. aysineep sp. nov., Eu. chiatous (Higgins) comb, nov., Eu. danos sp. nov., Eu. lindquisti sp. nov., Eu. magniporosus (Wallwork) comb, nov., and Eu. osoyoosensis sp. nov. The immatures of nine of these, Eu. masinasin, Eu. nahani, Eu. carinatus, Eu. higginsi, Eu. columbianus, Eu. proximus, Eu. woolleyi, Eu. stiktos, and Eu. tetrosus, are described. Kartoeremaeus reevesi Higgins and Eremaeus politus Banks are considered junior subjective synonyms of Eueremaeus columbianus (Berlese).A cladistic analysis of the genera comprising Eremaeidae: Eremaeus, Tricheremaeus, Eueremaeus (and included species groups), Proteremaeus, Carinabella, and Asperemaeus, indicates that Eremaeus is the sister taxon of Carinabella, and that Eueremaeus is the sister taxon of Proteremaeus. Tricheremaeus is the sister taxon of Eremaeus + Carinabella, and Asperemaeus is the sister taxon of Eueremaeus + Proteremaeus. The relationship of the Eremaeidae to the Megeremaeidae and Zetorchestidae is presented. Finally, I discuss the ecology and distribution of North American species of Eremaeidae.

scholarly journals A REVISION OF GRYON HALIDAY IN NORTH AMERICA (HYMENOPTERA: PROCTOTRUPOIDEA: SCELIONIDAE)

1983 ◽  
Vol 115 (2) ◽  
pp. 123-174 ◽  
Author(s):  
Lubomir Masner
Keyword(s):  
North America ◽  
North American ◽  
Generic Diagnosis ◽  
Species Groups

AbstractThe genus Gryon Haliday in North America is revised. Twenty-seven species are recognized, 12 of them new to science: G. aculeator, G. acutiventre, G. atrum, G. chelinideae, G. elatior, G. longipenne, G. obesum, G. radiculare, G. stewarti, G. triangulum, G. vitripenne, and G. xanthosoma. The tribe Gryonini is discussed, and a key to North American genera of the tribe is included. A generic diagnosis of Gryon is given, and seven species-groups are discussed and(or) proposed. A key, diagnoses, relationships, and bionomics of species in North America are given. New terms for additional characters found on the posterior surfaces of the head are defined and figured.

THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE) IN NORTH AMERICA: I. SUBGENERA OROSAGROTIS, LONGIVESICA, CHORIZAGROTIS, PLEONECTOPODA, AND CRASSIVESICA

1970 ◽  
Vol 102 (S67) ◽  
pp. 7-177 ◽  
Author(s):  
David F. Hardwick
Keyword(s):  
New Species ◽  
North America ◽  
Geographic Variation ◽  
North American ◽  
Male Genitalia ◽  
North American Species ◽  
Species Groups ◽  
Lepidoptera Noctuidae ◽  
Adequate Analysis

AbstractThe large and complex genus Euxoa is divided into six subgenera: Orosagrotis, Longivesica, Euxoa, Chorizagrotis, Pleonectopoda, and Crassivesica. Orosagrotis and Chorizagrotis have until now been considered as valid noctuid genera by many workers. Longivesica and Crassivesica are here described as new. The taxonomy and distribution of North American species in all subgenera except the very extensive subgenus Euxoa are considered in the present paper. Only 49 species in a probable North American Euxoa fauna of some 200 species are included in the five subgenera reviewed here, however.Within the genus, species have been segregated into subgenera and species groups largely on the basis of the structure of the male genitalia, and particularly on the conformation of the vesica of the male. Keys to subgenera, species groups, and species are presented. No new species are described. Subspecies are not formally considered because an adequate analysis of the often complex geographic variation is beyond the scope of this paper.

North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae)

Zootaxa ◽  
2006 ◽  
Vol 1279 (1) ◽  
pp. 1 ◽  
Author(s):  
IAN M. SMITH ◽  
DAVID R. COOK
Keyword(s):  
United States ◽  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Southwestern United States ◽  
Species Groups

Members of the genus Diamphidaxona Cook, 1963 are found from southeastern Canada to Argentina, with greatest diversity of species and species groups in the southwestern United States and Mexico. In this paper the three species of Diamphidaxona previously known from North America, D. pallida Cook, D. dolichosoma Cook and D. imamurai Cook, are redescribed. Eleven new species, including D. arizonica sp. nov., D. brevitarsa sp. nov., D. californica sp. nov., D. cavecreekensis sp. nov., D. chihuahua sp. nov., D. chiricahua sp. nov., D. cramerae sp. nov., D. neomexicana sp. nov., D. parvacetabula sp. nov., D. platysoma sp. nov. and D. sabinalensis sp. nov., are also described. North American species are allocated to two subgenera, the nominate subgenus and Diamphidaxonella subgen. nov., for which diagnoses are provided. New distributional data and a key for all North American species are presented.

A REARRANGEMENT OF THE NORTH AMERICAN SPECIES OF CLUBIONA, WITH DESCRIPTIONS OF TWO NEW SPECIES (ARANEIDA: CLUBIONIDAE)

1976 ◽  
Vol 108 (11) ◽  
pp. 1155-1165 ◽  
Author(s):  
C. D. Dondale ◽  
J. H. Redner
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Eastern North America ◽  
The North ◽  
Two New Species ◽  
Species Groups ◽  
Group 2 ◽  
Group 1

AbstractThe 50 known species of North American Clubiona Latreille, 1804 are rearranged in seven species-groups as follows: trivialis group (1 Holarctic, 4 Nearctic), obesa group (11 Nearctic), reclusa group (2 Holarctic, 3 Nearctic), pallidula group (1 Holarctic), abboti group (25 Nearctic), lutescens group (1 Holarctic, 1 Nearctic), maritima group (1 Nearctic). Clubiona quebecana and C. angulata are described as new species from eastern North America. C. kuratai Roddy, 1966, originally described from the female only, is synonymized under C. chippewa Gertsch, 1941, which was originally described from the male only. C. opeongo Edwards, 1958 and C. bishopi Edwards, 1958 are redescribed, the male of the former and the female of the latter not having been previously described.

REVIEW OF NORTH AMERICAN CHRYSOCHARIS (KRATOCHVILIANA) (EULOPHIDAE: CHALCIDOIDEA) NORTH OF MEXICO, ESPECIALLY SPECIES ATTACKING BIRCH CASEBEARER (LEPIDOPTERA: COLEOPHORIDAE) AND BIRCH LEAFMINER (HYMENOPTERA: TENTHREDINIDAE)

1973 ◽  
Vol 105 (10) ◽  
pp. 1309-1349 ◽  
Author(s):  
Carl M. Yoshimoto
Keyword(s):  
North America ◽  
North American ◽  
Fenusa Pusilla ◽  
Species Groups ◽  
North America North

AbstractThis study provides information on the species of Chrysocharis (Kratochviliana) found in North America with special emphasis on the Canadian species attacking the birch casebearer, Coleophora serratella (L.) (= fuscedinella Zeller), and the birch leafminer, Fenusa pusilla (Lepeletier).The genus Chrysocharis Förster in North America north of Mexico consists of two subgenera, Kratochviliana Maláč and Chrysocharis s. str. There are 15 Nearctic species of Kratochviliana, of which 10 species are described herein as new. These are: C. (Kratochviliana) robusta n. sp., C. (K.) incerta n. sp., C. (K.) stipitis n. sp., C. (K.) hirsutiventris n. sp., C. (K.) walleyi n. sp., C. (K.) protolithocolletidis n. sp., C. (K.) milleri n. sp., C. (K.) aluta n. sp., C. (K.) coptodiscae n. sp., and C. (K.) cuspidigaster n. sp. Relationships and distribution of species-groups in North America and Europe are discussed. Keys to subgenera and species and host records are included.

Charophytivory, Playas y Papalotes, a Local Paradigm of Global Relevance

1999 ◽  
Vol 47 (3) ◽  
pp. 399 ◽  
Author(s):  
Vernon W. Proctor
Keyword(s):  
New Mexico ◽  
North America ◽  
North American ◽  
Hyalella Azteca ◽  
The Other ◽  
Habitat Types ◽  
Run Off ◽  
Freshwater Amphipods ◽  
The Common ◽  
Grazing Pressures

The Llano Estacado region of western Texas and adjacent New Mexico has one of the most species-rich charophyte floras known for North America, but upon closer inspection this flora is seen to consist of two, strictly non-overlapping segments, one of 12 taxa, the other of nine. The larger group of species is confined to a vast series of shallow, ephemerally inundated depressions known as playas. These normally fill with run-off rainwater in late May or early June, remain flooded through early to mid-September before eventually drying to the curling polygon stage near the end of September. Approximately 8 months later the cycle is repeated. The remaining nine charophytes are confined to permanently inundated sites, the most common of which are livestock-watering windmill complexes, known as papalotes. Rarely, if ever, are members of the playa-12 encountered in papalotes or members of the papalote-9 in playas. The underlying bases for this ‘two flora’ dichotomy stem from the contrasting amphipod populations engendered by the two habitat types. Most freshwater amphipods (scuds), including the common North American herbivore Hyalella azteca (Saussure), cannot withstand complete desiccation which, accordingly, prevents its colonisation of playas. By contrast, scuds often reach exceptionally high densities in the associated concrete or metal tanques of papalotes, since such specialised habitats are usually free of vertebrate predators, e.g. birds, fish, turtles, salamanders. Scud- resistant charophytes are larger and slower to develop gametangia, features inimical to success in short- lived playas. By contrast, precocious charophyte opportunists–typical of playa floras–cannot withstand the grazing pressures of papalote (or papalote-like) environments. While charophytivory is assumed to be of worldwide occurrence and significance, it has been clearly demonstrated only in the unique juxtaposition of ‘playas y papalotes’.

REVISION OF NORTH AMERICAN AGABUS LEACH (COLEOPTERA: DYTISCIDAE): INTRODUCTION, KEY TO SPECIES GROUPS, AND CLASSIFICATION OF THE AMBIGUUS-, TRISTIS-, AND ARCTICUS-GROUPS

1989 ◽  
Vol 121 (10) ◽  
pp. 861-919 ◽  
Author(s):  
D.J. Larson
Keyword(s):  
North America ◽  
North American ◽  
North American Species ◽  
Key To Species ◽  
Diagnostic Characters ◽  
Ecological Information ◽  
The North ◽  
Species Groups ◽  
Diving Beetle

AbstractThe first of a planned series of papers revising the Nearctic species of the predaceous diving beetle genus, Agabus Leach, is presented. The genus is defined in the broad sense of Sharp (1882) and Fall (1922). The North American species are divided into species groups and diagnostic characters for group recognition are summarized in a key. Assignment of species to these groups is indicated in a checklist of North American species. The ambiguus-, tristis-, and arcticus-groups are defined, their relationships discussed, and included species revised. The ambiguus-group, which is restricted to North America, contains the species A. ambiguus (Say), A. strigulosis (Crotch), A. erythropterus (Say), A. austinii Sharp, and A. klamathensis sp.nov. The tristis-group, which has a Holarctic distribution, contains two species in North America, A. tristis Aubé and A. leptapsis (LeConte). The Holarctic arcticus-group is represented by A. arcticus (Paykull) and A. anthracinus (Mannerheim) in North America. For each species, patterns of variation are described, the North American distributions mapped, and ecological information summarized.

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