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212. Periods of dormancy and cohort-splitting in the millipede Polydesmus angustus (Diplopoda: Polydesmidae)

Creator:
David, Jean-François, Celerier, Marie-Louise, and Geoffroy, Jean-Jacques
Format:
print, text, and regular print
Type:
article, bibliography, conference publication, model:article, and TEXT
Subject:
Third European Workshop of Invertebrate Ecophysiology (1998 : Birmingham, Česko), zoologie, fyziologie živočichů, ekofyziologie, hmyz, Diplopoda, Polydesmus angustus, životní cyklus, reprodukční dormance, diapauza, sezónní vlivy, 591.5, 061.3, and 595.2/.7
Language:
English
Description:
First stadium juveniles of P. angustus were reared under controlled seasonal conditions to maturity, reproduction and death. Individuals born in any one breeding season either had a 1-year or a 2-year life cycle (cohort-splitting). The life cycle was annual for individuals born in the first part of the breeding season (May-August), but became biennial for those born later (August-October). Two phenomena were involved: (1) Only individuals reaching the penultimate stadium (stadium VII) before a critical period at the end of spring could become adult in the breeding season following that of their birth. After this time, stadium VII individuals entered into aestivation and only became adult in the second autumn after their birth. (2) Females becoming adult in autumn entered reproductive dormancy and only laid eggs in the following spring. Overall, individuals born at the start of the breeding season easily reached stadium VII before the critical period and were able to breed at I year, whereas individuals born at the end of the breeding season reached stadium VII after the critical period, then had two consecutive periods of dormancy and only bred at 2 years age. Individuals from the same nest born in the middle of the breeding season (August) could have either annual or biennial life cycles, depending on whether they reached stadium VII before or during aestivation. The environmental factors capable of triggering aestivation in subadults and reproductive dormancy in autumn-maturing females are discussed., Jean-Francois David, Marie-Louise Celerier, Jean-Jacques Geoffroy, and Lit
Rights:
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214. Phylogenetic relatedness of Erebia medusa and E. epipsodea (Lepidoptera: Nymphalidae) confirmed

Creator:
Šemeláková, Martina, Peter Pristaš, and Panigaj, Lubomír
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Lepidoptera, Nymphalidae, Erebia medusa, E. epipsodea, mtDNA, COI, ND1, 2, and 59
Language:
English
Description:
The extensive genus Erebia is divided into several groups of species according to phylogenetic relatedness. The species Erebia medusa was assigned to the medusa group and E. epipsodea to the alberganus group. A detailed study of the morphology of their copulatory organs indicated that these species are closely related and based on this E. epipsodea was transferred to the medusa group. Phylogenetic analyses of the gene sequences of mitochondrial cytochrome C oxidase subunit I (COI) and mitochondrial NADH dehydrogenase subunit 1 (ND1) confirm that E. medusa and E. epipsodea are closely related. A possible scenario is that the North American species, E. episodea, evolved after exclusion/isolation from E. medusa, whose current centre of distribution is in Europe., Martina Šemeláková, Peter Pristaš, Lubomír Panigaj., and Obsahuje seznam literatury
Rights:
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215. Phylogeny of Cantacaderinae (Heteroptera: Tingidae) revisited after the description of a new genus and new species from New Caledonia

Creator:
Guilbert, Eric
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Heteroptera, Tingidae, Cantacaderinae, description, New Caledonia, new genus, new species, phylogeny, systematics, taxonomy, 2, and 59
Language:
English
Description:
A new genus and new species of Cantacaderinae (Heteroptera: Tingidae) is described, Caledoderus monteithi. A key to genera is provided. The phylogenetic relationships among the Cantacaderinae, including this new genus and species, are revisited. The results are congruent with previous studies. However, the Ceratocaderini is a sister group of Carldrakeaninae and not Cantacaderini, even if only weakly supported by the analysis. Therefore, the status of Ceratocaderini and Cantacaderini is maintained, whereas Carldrakeanini stat. nov. is reduced to tribal level and they are all included in the Cantacaderinae., Eric Guilbert., and Obsahuje seznam literatury
Rights:
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216. Phylogeny of endopterygote insects, the most successful lineage of living organisms

Creator:
Kristensen, Niels P.
Format:
print, text, and regular print
Type:
article, bibliography, model:article, and TEXT
Subject:
zoologie, hmyz, Endopterygota, Holometabola, fylogeneze, 595.2/.7, and 591.3
Language:
English
Description:
The monophyly of the Endopterygota is supported primarily by the specialized larva without external wing buds and with degradable eyes, as well as by the quiescence of the last immature (pupal) stage; a specialized morphology of the latter is not an endopterygote groundplan trait. There is weak support for the basal endopterygote splitting event being between a Neuropterida + Coleoptera clade and a Mecopterida + Hymenoptera clade; a fully sclerotized sitophore plate in the adult is a newly recognized possible groundplan autapomorphy of the latter. The molecular evidence for a Strepsiptera + Diptera clade is differently interpreted by advocates of parsimony and maximum likelihood analyses of sequence data, and the morphological evidence for the monophyly of this clade is ambiguous. The basal diversification patterns within the principal endopterygote clades (\"orders\") are succinctly reviewed. The truly species-rich clades are almost consistently quite subordinate. The identification of \"key innovations\" promoting evolutionary success (in terms of large species numbers) is fraught with difficulties., Niels P. Kristensen, and Lit
Rights:
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217. Phylogeny of quill mites of the family Syringophilidae (Acari: Prostigmata) based on their external morphology

Creator:
Skoracki, Maciej, Glowska, Eliza, and Bochkov, Andre V.
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Acari, Prostigmata, Syringophilidae, quill mites, phylogeny, morphology, ectoparasites, birds, 2, and 59
Language:
English
Description:
1_External morphological characters were used to reconstruct a phylogeny of the mite family Syringophilidae (Acariformes: Cheyletoidea), which are permanent parasites inhabiting the quills of bird feathers. A total of 53 syringophilid genera and 79 characters were included in the data matrix; maximum parsimony (MP) and Bayesian analyses (BA) were performed to determine their phylogenetic relationships. The consensus of unweighted MP trees was weakly resolved. Only four generic groups were recognized: Aulonastus + Krantziaulonastus (i) and (Creagonycha + Kethleyana) + (Megasyringophilus + Selenonycha) (ii) – both with low Bremer support (BS 1); the subfamily Picobiinae – Picobia, Calamincola, Columbiphilus (Neopicobia + Rafapicobia) (BS 12) (iii) and Psittaciphilus generic group – (Meitingsunes + Psittaciphilus) (Peristerophila + (Neoperisterophila + (Castosyringophilus + Terratosyringophilus))) (BS 2) (iv). BA revealed a consensus tree with a topology similar to MP. The two main groups recognized by MP, the subfamily Picobiinae and Psittaciphilus, both received the highest support of 1; while two other groups recognized by MP – Aulonastus + Krantziaulonastus and (Creagonycha + Kethleyana) + (Megasyringophilus + Selenonycha) received relatively low support of 0.73–74 and 0.76–77, respectively., 2_The consensus of re-weighted MP trees was almost fully resolved but, the majority of the generic groups, excluding the Picobiinae and Psittaciphilus were supported by just a few non-unique synapomorphies with a high probability of homoplastic origin. The most intriguing result is the paraphyly of the Syringophilinae in respect to picobiines. The pattern of the re-weighted tree demonstrates only patches of parallel evolution at the level of syringophilid genera and bird orders. Perhaps horizontal shifts on phylogenetically distant hosts and colonization of quill (calamus) types other than primaries and secondaries were also important in the evolution of the syringophilids., Maciej Skoracki, Eliza Glowska, Andre V. Bochkov., and Obsahuje seznam literatury
Rights:
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218. Plumbagin and azadirachtin deplete hemolymph ecdysteroid levels and alter the activity profiles of two lysosomal enzymes in the fat body of Helicoverpa armigera (Lepidoptera: Noctuidae)

Creator:
Josephrajkumar, Arulappan, Subrahmanyam, Bhattiprolu, and Srinivasan, S.
Format:
print, text, and regular print
Type:
article, bibliography, model:article, and TEXT
Subject:
zoologie, entomologie, hmyz, fyziologie hmyzu, motýli, Noctuidae, Helicoverpa armigera, metamorfóza, růstové regulátory, plumbagin, azadirachtin, účinky, ekdysteroid, kyselá fosfatáza, beta-galaktosidáza, morfologické abnormality, 591.1, and 595.2/.7
Language:
English
Description:
The profile of hemolymph ecdysteroid was studied in the gram pod borer, Helicoverpa armigera, during larval-pupal transformation. The changes closely correspond to the developmental events occurring at metamorphosis. Two insect growth regulators, plumbagin and azadirachtin, significantly depleted the content and altered the profile of ecdysteroids at crucial stages, when applied at ED50 doses. The activity profiles of two fat body lysosomal enzymes, acid phosphatase and b-galactosidase, were also significantly affected by the insect growth regulators. It is suggested that plumbagin and azadirachtin treatments primarily modify the ecdysteroid titer, which in turn leads to changes in lysosomal enzyme activity causing overt morphological abnormalities during the metamorphic molt., Arulappan Josephrajkumar, Bhattiprolu Subrahmanyam, Srinivasan, and Lit
Rights:
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219. Pollination of Sedirea japonica (Orchidaceae) by Bombus diversus diversus (Hymenoptera: Apidae)

Creator:
Suetsugu, Kenji and Tanaka, Koji
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Hymenoptera, Apidae, Bombus, bumblebee, orchid, Sedirea japonica, pollinator, Xylocopa, 2, and 59
Language:
English
Description:
Pollination of Sedirea japonica (Orchidaceae) by Bombus diversus diversus (Hymenoptera: Apidae), Kenji Suetsugu, KOji Tanaka., and Obsahuje seznam literatury
Rights:
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220. Polyphagous predatory rove beetles (Coleoptera: Staphylinidae) induce winged morphs in the pea aphid Acyrthosiphon pisum (Hemiptera: Aphididae)

Creator:
Balog, Adalbert, Mehrparvar, Mohsen, and Weisser, Woflgang W.
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Staphylinidae, Drusilla canaliculata, Tachyporus hypnorum, Aphididae, Acyrthosiphon pisum, aphid polyphenism, predator-prey interaction, rove beetles, maternal effects, induced defence, 2, and 59
Language:
English
Description:
A number of aphid species have been shown to produce winged dispersal morphs in the presence of natural enemies. Previous studies tested specialized aphid predators such as ladybirds or lacewing larvae. We confronted colonies of pea aphids with the polyphagous rove beetles, Drusilla canaliculata and Tachyporus hypnorum. For both predators we found that the percentage of winged morphs increased in predator-attacked pea aphid colonies compared to a control. The behaviour of the two rove beetles species was noticeably different. D. canaliculata mostly foraged on the ground and rarely on the plant, while T. hypnorum was almost exclusively observed on the plants, causing a higher number of aphids to drop to the ground, which resulted in a stronger increase in winged morph production. Our results clearly show that not only monophagous aphid predators but also more polyphagous insect predators, which include aphids in their diet, can induce aphids to produce winged morphs., Adalbert Balog, Mohsen Mehrparvar, Wolfgang W. Weisser., and Obsahuje seznam literatury
Rights:
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