scholarly journals Cryptic diversity within the Poecilochirus carabi mite species complex phoretic on Nicrophorus burying beetles: phylogeny, biogeography, and host specificity

2021 ◽  
Author(s):  
Julia Canitz ◽  
Derek S. Sikes ◽  
Wayne Knee ◽  
Julia Baumann ◽  
Petra Haftaro ◽  
...  
Keyword(s):  
Host Specificity ◽  
Species Complex ◽  
Mite Species ◽  
Cryptic Diversity ◽  
Burying Beetles

scholarly journals Densely sampled phylogenetic analyses of the Lesser Short‐toed Lark ( Alaudala rufescens ) — Sand Lark ( A. raytal ) species complex (Aves, Passeriformes) reveal cryptic diversity

2020 ◽  
Vol 49 (4) ◽  
pp. 427-439 ◽  
Author(s):  
Fatemeh Ghorbani ◽  
Mansour Aliabadian ◽  
Ruiying Zhang ◽  
Martin Irestedt ◽  
Yan Hao ◽  
...  
Keyword(s):  
Species Complex ◽  
Phylogenetic Analyses ◽  
Cryptic Diversity

Cryptic diversity and species boundaries within the Paragalago zanzibaricus species complex

2020 ◽  
Vol 150 ◽  
pp. 106887
Author(s):  
Luca Pozzi ◽  
Anna Penna ◽  
Simon K. Bearder ◽  
Johan Karlsson ◽  
Andrew Perkin ◽  
...  
Keyword(s):  
Species Complex ◽  
Species Boundaries ◽  
Cryptic Diversity

Survey of rats and mice and their ectoparasites in relation to cultivated areas in the vicinity of Alexandria governorate, Egypt

1981 ◽  
Vol 97 (3) ◽  
pp. 551-555
Author(s):  
I. A. Gaaboub ◽  
A. E. E. Widaatalla ◽  
N. L. Kelada
Keyword(s):  
Host Specificity ◽  
Sugar Cane ◽  
Rattus Rattus ◽  
Rhipicephalus Sanguineus ◽  
Mite Species ◽  
Rodent Host ◽  
Pulex Irritans ◽  
Close Relationship ◽  
Definite Host ◽  
Rats And Mice

SUMMARYSix species and subspecies of rats and mice, Arvicanthis niloticus, Rattus norvegicus, R. rattus frugivorus, R. rattus alexandrinus, R. rattus rattus, and Mus musculus, were found associated with cotton, wheat, maize, sugar-cane, vegetables, fruit and berseem in the vicinity of Alexandria, Egypt. A. niloticus comprised 42·2% of all species collected. Maize, wheat, cotton and berseem were infested most. The lowest infestation was recorded in the fruit fields. Infestation in sugar-cane and vegetables was intermediate. R. norvegicus, M. musculus, R. rattus frugivorus, R. rattus alexandrinus and it. rattus rattusformed 23·9, 16·7, 10·4, 4·2 and 2·7% of the species collected respectively. Of the seven crops investigated, only two (cotton, wheat) were not infested with R. rattus rattus, but all were plagued with some species of rodents. The abundance of these rodents in fields seemed to be positively correlated with temperature and relative humidity. Winter represents a definite off-season for all species recorded.Six species of fleas (Xenopsylla cheopis, Nosopsyllus fasciatus, Ctenocephalides felis felis, Leptopsylla segnis, Pulex irritans and Echidnophaga gallinacea), three of sucking lice (Polyplax abyssinica, P. spinulosa and Hoplopleura capitosa), five of parasitic mites (Ornithonyssus bacoti, Laelaps echidnina, L. keegani, Androlaelaps zulu and Haemolaelaps sp.) and the tick Rhipicephalus sanguineus sanguineus were recovered from the rodents. Fleas (especially X. cheopis) and lice generally showed a certain degree of host specificity. A close relationship has been shown to exist between the abundance of fleas and lice and the abundance of some rodent hosts and climate. However, no definite host specificity or relation to climate was shown by infestation with mite species. Only B. sanguineus sanguinetie was recovered from S. rattus frugivorus during July, October and December; from R. rattus alexandrinus during November; and from R. rattus rattus during September. Its rate of infestation did not exceed one specimen per rodent host.

Species abundance distribution and ecological niches of chigger mites on small mammals in Yunnan province, southwest China

Biologia ◽  
2017 ◽  
Vol 72 (9) ◽  
Author(s):  
Pei-Ying Peng ◽  
Xian-Guo Guo ◽  
Dao-Chao Jin ◽  
Wen-Ge Dong ◽  
Ti-Jun Qian ◽  
...  
Keyword(s):  
Host Specificity ◽  
Yunnan Province ◽  
Southwest China ◽  
Species Abundance ◽  
Mite Species ◽  
Distribution Model ◽  
Ecological Niches ◽  
Species Abundance Distribution ◽  
Abundance Distribution ◽  
Wide Range

AbstractThe ecological niches and species abundance distributions of chigger mites were studied on small mammal hosts captured from 34 sites in Yunnan Province of southwest China between 2001 and 2015. Levins’ niche breadth and Colwell-Futuyma’s method were used to quantitatively evaluate host-specificity and similarity of host selection. Hierarchical analysis was used to illustrate niche overlap among mite species. Most mite species had a wide range of hosts with low host specificity. The niche overlaps between different mite species did not correlate with their taxonomic positions. Some mite species from different genera showed high niche overlaps and some others within the same genus showed low niche overlaps. Preston’s lognormal distribution model was used to fit the theoretical curve of species abundance distribution of mite community on

Host specificity in the Giardia duodenalis species complex

2018 ◽  
Vol 66 ◽  
pp. 335-345 ◽  
Author(s):  
Simone M. Cacciò ◽  
Marco Lalle ◽  
Staffan G. Svärd
Keyword(s):  
Host Specificity ◽  
Species Complex ◽  
Giardia Duodenalis

scholarly journals Comparison of Colletotrichum orbiculare and Several Allied Colletotrichum spp. for mtDNA RFLPs, Intron RFLP and Sequence Variation, Vegetative Compatibility, and Host Specificity

2007 ◽  
Vol 97 (10) ◽  
pp. 1305-1314 ◽  
Author(s):  
B. Liu ◽  
L. A. Wasilwa ◽  
T. E. Morelock ◽  
N. R. O'Neill ◽  
J. C. Correll
Keyword(s):  
Host Specificity ◽  
Restriction Fragment ◽  
Fragment Length ◽  
Species Complex ◽  
Sequence Variation ◽  
Distinct Species ◽  
Vegetative Compatibility ◽  
Haplotype A ◽  
Restriction Fragment Length ◽  
Mtdna Haplotype

Based on spore morphology, appressorium development, sequence similarities of the rDNA, and similarities in amplified restriction fragment length polymorphism (AFLP), it has been proposed that Colletotrichum orbiculare, C. trifolii, C. lindemuthianum, and C. malvarum represent a single phylogenetic species, C. orbiculare. In the current study, the phylogenetic relationship among isolates in the C. orbiculare species complex was reassessed. In all, 72 isolates of C. orbiculare from cultivated cucurbit or weed hosts, C. trifolii from alfalfa, C. lindemuthianum from green bean, and C. malvarum from prickly sida (Sida spinosa) were examined for mitochondrial DNA (mtDNA) restriction fragment length polymorphisms (RFLPs), RFLPs and sequence variation of a 900-bp intron of the glutamine synthetase gene and a 200-bp intron of the glyceraldehyde-3-phosphate dehydrogenase gene, and vegetative compatibility. In addition, host specificity was examined in foliar inoculations on cucurbit, bean, and alfalfa hosts. Inoculations also were conducted on cucumber fruit. Genetically distinct isolates, based on vegetative compatibility, within the species complex (C. orbiculare, C. trifolii, and C. malvarum) had an identical mtDNA haplotype (haplotype A) when examined with each of three different restriction enzymes. Isolates of C. lindemuthianum had a very similar mtDNA haplotype to haplotype A, with a single polymorphism detected with the enzyme HaeIII. The four species represent a phylogenetically closely related group based on a statistical analysis of the 900- and 200-bp intron sequences. However, distinct RFLPs in the 900-bp intron were consistently associated with each species and could be used to qualitatively and quantitatively distinguish each species. Furthermore, each of the species showed distinct host specificity, with isolates of C. orbiculare (from cucurbits), C. lindemuthianum, and C. trifolii being pathogenic only on cucurbits, green bean, and alfalfa, respectively. Consequently, distinct and fixed nucleotide, or genotypic (intron sequences and RFLPs) and phenotypic (host specificity) characteristics can be used to distinguish C. orbiculare, C. lindemuthianum, and C. trifolii from one another; therefore, they should be recognized as distinct species. This species delineation is consistent with the most current species concepts in fungi. More isolates and further characterization is needed to determine whether C. orbiculare from cocklebur and C. malvarum represent distinct species. RFLPs of the 900-bp intron may represent a relatively inexpensive, reliable, and useful diagnostic tool for general species differentiation in the genus Colletotrichum.

scholarly journals Unravelling mummies: cryptic diversity, host specificity, trophic and coevolutionary interactions in psyllid – parasitoid food webs

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Aidan A. G. Hall ◽  
Martin J. Steinbauer ◽  
Gary S. Taylor ◽  
Scott N. Johnson ◽  
James M. Cook ◽  
...  
Keyword(s):  
Food Webs ◽  
Host Specificity ◽  
Cryptic Diversity

scholarly journals Untangling the Lactifluus clarkeae - Lf. flocktoniae (Russulaceae) species complex in Australasia

2021 ◽  
Author(s):  
T. Lebel ◽  
J. Douch ◽  
L. Tegart ◽  
L. Vaughan ◽  
J.A. Cooper ◽  
...  
Keyword(s):  
New Species ◽  
New Zealand ◽  
Species Complex ◽  
Molecular Data ◽  
Habitat Associations ◽  
Species Level ◽  
Range Extension ◽  
Cryptic Diversity ◽  
Identification Of Species

The Lactifluus clarkeae complex is a commonly observed, generally brightly coloured, group of mushrooms that are usually associated with Nothofagus or Myrtaceous hosts in Australia and New Zealand. For this study collections labelled as ‘Lactarius clarkeae’, ‘Russula flocktoniae’ and ‘Lactarius subclarkeae’ were examined morpiperatphologically and molecularly. Analyses of molecular data showed a high cryptic diversity, with sequences scattered across 11 clades in three subgenera within Lactifluus, and a single collection in Russula. We select epitypes to anchor the currently accepted concepts of Lf. clarkeae s.str. and Lf. flocktoniae s.str. The name Lf. subclarkeae could not be applied to any of the collections examined, as none had a lamprotrichoderm pileipellis. Lactifluus clarkeae var. aurantioruber is raised to species level, and six new species are described, three in subg. Lactifluus: Lf. jetiae, Lf. pagodicystidiatus, and Lf. rugulostipitatus, and three in subg. Gymnocarpi: Lf. albens, Lf. psammophilus, and Lf. pseudoflocktoniae. A new collection of Lf. russulisporus provides a significant range extension for the species. Untangling this complex will enable better identification of species and increase understanding of diversity and specific habitat associations of macrofungi.

Sign in / Sign up

Export Citation Format

Share Document