ON THE TAXONOMY OF THE GENUS CLADOTAENIA, THE LIFE HISTORIES OF C. GLOBIFERA (BATSCH, 1786) AND C. CIRCI YAMAGUTI, 1935, AND A NOTE ON DISTINGUISHING BETWEEN THE PLEROCERCOIDS OF THE GENERA PARUTERINA AND CLADOTAENIA

1959 ◽  
Vol 37 (3) ◽  
pp. 317-340 ◽  
Author(s):  
Reino S. Freeman

A review of the taxonomy of the genus Cladotaenia established that at least four species of this genus occur in Europe, Egypt, and Sudan; that four species occur in North America; and that there are 10 valid species in the world. C. circi Yamaguti, 1935 is redescribed from Circus cyaneus hudsonius and Accipiter cooperi, and C. globifera (Batsch, 1786) is redescribed from Accipiter gentilis atricapillus, A. striatus velox, Buteo p. platypterus, B. jamaicensis, and C. cyaneus hudsonius all collected in North America. The development of the plerocercoid of both species is described. Natural infections with the plerocercoid of C. circi, are reported from Peromyscus maniculatus sonoriensis, and with the plerocercoid of C. globifera in the rodents, Clethrionomys gapperi, Napaeozapus insignis, Peromyscus maniculatus gracilis, P. leucopus noveboracensis, Tamias striatus, Tamiasciurus hudsonicus, and the insectivore Sorex cinereus. The ratio of the length of the hook to length of guard of the large hooks of Cladolaenia is less than 3.5:1, whereas this ratio is more than 3.5:1 on the large rostellar hooks of Paruterina, which is considered a good criterion for distinguishing the plerocercoids of the two genera.

1982 ◽  
Vol 60 (11) ◽  
pp. 2787-2797 ◽  
Author(s):  
John O. Whitaker Jr ◽  
Thomas W. French

Ectoparasites and other associates were examined from seven species of insectivores and nine species of rodents from Mount Carleton Provincial Park, New Brunswick. The most abundant forms found were (at least 2.0 per host individual) the following: Orycteroxenus soricis and Amorphacarus hengererorum on Sorex cinereus and on Sorex (Microsorex) hoyi; A. hengererorum and O. soricis on Sorex fumeus; O. soricis, Miyatrombicula esoensis, and Ixodes angustus on Sorex gaspensis; O. soricis, I. angustus, Pygmephorus horridus, and Protomyobia americana on Blarina brevicauda; M. esoensis, Protomyobia claparedei, and Glycyphagus hypudaei on Sorex palustris; Orycteroxenus canadensis, O. soricis, P. horridus, G. hypudaei, Ctenophthalmus pseudagyrtes, and Haemogamasus ambulans on Condylura cristata. More abundant ectoparasites of the rodents were as follows: G. hypudaei, Listrophorus mexicanus, M. esoensis, Neotrombicula harperi, and Radfordia lemnina on Clethrionomys gapperi; G. hypudaei, L. mexicanus, M. esoensis, N. harperi, and Laelaps kochi on Microtus chrotorrhinus; L. mexicanus, G. hypudaei, Radfordia hylandi, Laelaps alaskensis, M. esoensis, Polyplax alaskensis, L. kochi, N. harperi, and Myocoptes j. japonensis on Microtus pennsylvanicus; Listrophorus synaptomys, Hoplopleura acanthopus, L. alaskensis, G. hypudaei, M. esoensis, I. angustus, R. hylandi, and N. harperi on Synaptomys cooperi; all of these except the last one on Synaptomys borealis; M. esoensis on Peromyscus maniculatus; Dermacarus newyorkensis on Zapus hudsonius; D. newyorkensis, N. harperi, Radfordia ewingi, and G. hypudaei on Napaeozapus insignis; Dermacarus hylandi, N. harperi, Megabothris acerbus, and M. esoensis on Tamias striatus.


Author(s):  
Patricia N Siy ◽  
Ryan T Larson ◽  
Tela E Zembsch ◽  
Xia Lee ◽  
Susan M Paskewitz

Abstract Borrelia mayonii is a recently discovered bacterial spirochete that causes Lyme disease and is transmitted by the blacklegged tick, Ixodes scapularis Say (Acari: Ixodidae). To date, B. mayonii has been isolated from two vertebrate host species in Minnesota: field-caught white-footed mice (Peromyscus leucopus Rafinesque; Rodentia: Cricetidae) and American red squirrel (Tamiasciurus hudsonicus Erxleben). Here, we describe the first detection of B. mayonii in field-caught eastern chipmunks (Tamias striatus L. (Rodentia: Cricetidae)) from northern Wisconsin. During our study, we captured 530 unique small mammals and found an infection prevalence of 23.50% in field-caught eastern chipmunks (4/17) and 1.19% in Peromyscus spp. (5/420). Mean larval and nymphal burdens were determined for captured Blarina brevicauda (0, 0), Glaucomys volans (0.29, 0.14), Myodes gapperi (0.27, 0), Napaeozapus insignis (0, 0.25), Peromyscus spp. (1.88, 0.11), T. striatus (1.06, 0.65), and Sorex cinereus (0.09, 0). The high B. mayonii infection prevalence in eastern chipmunks suggests that the species may be an important reservoir for B. mayonii in the Upper Midwest.


1985 ◽  
Vol 63 (12) ◽  
pp. 2748-2755 ◽  
Author(s):  
V. I. Burachynsky ◽  
T. D. Galloway

During a 2-year study on the relationships between immature Dermacentor variabilis and their small-mammal hosts near Birds Hill, Manitoba, 739 captures of 427 mammals were examined for ticks. Captures represented 11 mammal species: Clethrionomys gapperi, Lepus americanus, Microtus pennsylvanicus, Mus musculus, Peromyscus maniculatus, Sorex cinereus, Spermophilus franklinii, Spermophilus tridecemlineatus, Tamias striatus, Tamiasciurus hudsonicus, and Zapus hudsonius. Clethrionomys gapperi, M. pennsylvanicus, P. maniculatus, S. franklinii, and Z. hudsonius were most frequently encountered and, with the exception of S. franklinii, infested with larvae and nymphs. Clethrionomys gapperi were most frequently infested by D. variabilis and produced 42.6% and 60.5% of larvae collected in 1979 and 1980, respectively, and over 85% of all nymphs. Peak larval infestation occurred between the last week of May and the middle of June; that for nymphs occurred in July in both 1979 and 1980. Dermacentor variabilis appeared to have a 2-year life cycle in Manitoba. Larvae were spatially aggregated during both years and aggregates were located in different areas of the plots each year. Nymphs were less aggregated than larvae. The distribution of nymphs overlapped that of larvae each year and occupied a greater area on the plots.


1995 ◽  
Vol 73 (8) ◽  
pp. 1432-1437 ◽  
Author(s):  
G. B. Sekgororoane ◽  
T. G. Dilworth

To determine whether small mammals show "edge effect" at induced forest edges created by harvest cutting, small mammals were snap-trapped from 1990 to 1992 at 5 sites harvested 0–10 years previously in the University of New Brunswick Forest, Fredericton. Nine species were captured in 8686 trap-nights. There was edge effect in older (6–10 years) but not in recent (0–5 years) cuts. This was shown by both high relative abundance for all species combined and species diversity in the ecotone (from 10 m into the harvest cut to 10 m into the forest). Species richness did not show any edge-related pattern. Edge effect with respect to relative abundance was largely due to Peromyscus maniculatus and Clethrionomys gapperi. Peromyscus maniculatus reached the highest relative abundance 10 m in the forest and was not captured beyond 10 m in the harvest cut. Clethrionomys gapperi made use of the forest side of the ecotone and was not captured beyond 5 m in the harvest cut. Napaeozapus insignis, Zapus hudsonius, and Soricidae (Blarina brevicauda, Sorex cinereus, and S. fumeus) showed no attraction to, or avoidance of, the edge.


1994 ◽  
Vol 25 (4) ◽  
pp. 377-392 ◽  
Author(s):  
◽  
Göran Nordlander

AbstractThe archaic cynipoid family Ibaliidae is revised. All described taxa are included in a checklist, and keys to valid taxa are presented. Host records include larvae of several woodwasp species (Siricidae: Siricinae and Tremicinae). Ibaliidae is considered to include the East Asian genus Heteribalia Sakagami, with five valid species, and the mainly Holarctic genus Ibalia Latreille, with 13 valid species, seven in the subgenus Ibalia and six in the subgenus Tremibalia. Heteribalia aureopilosa Maa, 1949 and H. subtilis Maa, 1949 are raised from subspecies to species level. Ibalia (T.) hunanica sp. n., is described from Oriental China. Three morphs of I. (T.) anceps, differing in wing colour pattern, are recognized, and distribution records of these morphs in North America are mapped. I. scalpellator Westwood, 1837 is synonymized with I. anceps Say, 1824; I. takaehihoi Yasumatsu, 1937 with I. jakowlewi Jacobson, 1899; I.fulviceras Yang, 1991 with I. ornata Belizin, 1968; and I. yunshae Yang et Liu,1992 with I. rufipes drewseni Borries, 1891. Lectotypes are designated for I. picea Matsumura, 1912 (syn. of I. leucospoides (Hochenwarth, 1785)) and for I. japonica Matsumura, 1912.


1982 ◽  
Vol 60 (5) ◽  
pp. 865-880 ◽  
Author(s):  
G. D. Racey ◽  
D. L. Euler

Changes in small mammal abundance and habitat caused by shoreline cottage development in central Ontario were studied in the summers of 1978 and 1979. This development significantly altered the vegetation composition and structure in the vicinity of cottages. These alterations, in turn, had an impact on small mammal abundance. These animals were classified in three response categories: tolerant (existing, at some level, regardless of degree of development), intolerant (extirpated at high levels of development), and indifferent to development. Tolerant species were the eastern chipmunk (Tamias striatus), short-tailed shrew (Blarina brevicauda), and deer mouse (Peromyscus maniculatus); intolerant species were the masked shrew (Sorex cinereus), red-backed vole (Clethrionomys gapperi), and woodland jumping mouse (Napeozapus insignis). The red squirrel (Tamiasciurus hudsonicus) was indifferent to development. Small mammal diversity was highest on mixed shorelines at moderate levels of development. Species diversity appeared to respond positively to vegetative composition, edge effect, and irregularity of habitat. These characteristics were all dependent on the level of cottage development.


Author(s):  
Jeff Gerbracht

Life history accounts and taxonomic monographs are a series of publications covering a higher taxonomic group where each account is a compilation of existing knowledge detailing many aspects of a species life history. These life history accounts are extensively used by researchers, ornithologists and conservationists as a main source for the current state of knowledge of a species. Birds, being one of the more easily seen and studied taxa, have a number of specialized life history accounts where data from a wide variety of disciplines are combined into a single easily accessible resource. The Cornell Lab of Ornithology (CLO) currently manages two of these series focused on different regions of the world, Birds of North America (BNA) and Neotropical Birds (NB). Lynx Edicions has published the Handbook of Birds of the World (HBW), an extensive set of avian monographs covering every species of bird in the world. A recently announced collaboration between CLO and Lynx Edicions provides us with the opportunity to bring together the extreme detail of the life history accounts from Birds of North America with the global coverage of HBW to produce a global, in-depth treatment of every species of bird in the world. The integration of life history information from these existing projects with different underlying taxonomies presents a variety of real-world examples of the challenges to be overcome to bring these life history accounts into alignment and provide the scientific and lay communities with taxonomically accurate and up to date information. The Handbook of Birds of the World currently follows the HBW and BirdLife Taxonomic Checklist v3 (with 11,126 species recognized) while Birds of North America and Neotropical Birds both follow the eBird/Clements checklist of birds of the world: v2018 (with 10,585 species recognized). Of the roughly 11,000 species of birds, nearly 9,500 are direct matches between HBW/BirdLife and Clements at the species or species to subspecies levels. The remaining concept mismatches fall into several basic categories including lump and split differences as well as differences in which subspecies are included or excluded. In this talk we will discuss the challenges we have faced with managing and merging life history accounts where the underlying taxonomies are fundamentally different. With a requirement to ensure that life history accounts remain accurate when the underlying concepts of the original sources differ, we employ a variety of processes, some very labor intensive and some requiring in-depth taxonomic knowledge to produce consolidated species accounts. Existing resources are integral to these type of integrations and in addition to the taxonomies themselves, cross-taxonomy mapping databases such as Avibase are key. Working through this process of consolidating life history accounts highlights the basic need for taxonomic management and publication toolsets built on underlying taxonomic and life history standards. Cross institutional collaboration to produce these toolsets will be key to their development and successful adoption across the biodiversity and taxonomic communities. I will also discuss and propose a set of taxonomic management tools based on taxonomic concepts, some which already exist and are used by bird taxonomists to annually update the Clements Checklist and some which need to be implemented before we can accurately manage and consolidate biodiversity information and the evolving taxonomies on which those data are based.


1980 ◽  
Vol 32 (1-4) ◽  
pp. 193-277 ◽  
Author(s):  
Michael E. Irwin ◽  
Leif L. Lyneborg

During the course of preparing the Therevidae chapter for the soon-to-be published Manual of Nearctic Diptera (Canada Department of Agriculture 1981), we've found that the previously published descriptions of genera were totally inadequate to form a framework for the therevid species of North America. The genus Psilocephala Zett., for instance, was found to be polyphyletic, containing species from several diverse ancestors. An effort to describe the many new genera contained herein was begun because we realized the definitive nature of the forthcoming Manual of Nearctic Diptera and the importance of establishing a generic base for the Therevidae founded on synapomorphies. We have restrained ourselves from grouping the genera beyond the subfamilial level simply because we feel that better natural groupings can be formed once genera from other parts of the world are included in the scheme. We have attempted to place the described species in the new generic concepts at the end of each diagnosis. All North American genera are diagnosed, and male terminalia are figured for all genera. In total, 29 genera and 143 currently valid species have been described for North America, excluding Apsilocephala Krober (1914) and its included species, longistyla Krober (1914), which we feel does not belong within the family Therevidae. We have not included Melanothereva MaWoch (1932:249) that occurs in Chile, Peru, and parts of Argentina and contains a single Nearctic species, nigra (Bellardi) [1861:92, (Psilocephala)] that, to our knowledge, has not been rediscovered since it was first described from Mexico. The descriptions and keys follow morphological terminology developed by us. Male terminalia characters were originally defined and described by Lyneborg (1968a) and have since been modified slightly by Lyneborg (1972, 1976, and 1978) and by Irwin (1977a and 1977b). Female terminalia characters were defined and described by Irwin (1976) . Other morphological features are generally accepted in Diptera literature, and we refrain from detailing them here. The immature stages of Therevidae have not been used in developing this preliminary classification. Larval and pupal stadia are being gathered and associated with adults in the hope that eventually they will help to elucidate the proper phylogenetic placement of species within genera and genera within suprageneric taxa.


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