Results 91 to 100 of about 146 (110)
Some of the next articles are maybe not open access.
The influence of temperature on the depth distribution of sympatric Erpobdellidae (Hirudinoidea)
Canadian Journal of Zoology, 1987Inter- and intra-specific differences in the behavioral responses of two sympatric Erpobdellidae, Nephelopsis obscura and Erpobdella punctata, to overall water temperature change and thermal gradients were investigated in the laboratory. The results are compared with the seasonal migratory patterns recorded in lentic field habitats.
T. E. Gates, Ronald W. Davies
openaire +1 more source
Phylogeny of the leech family Erpobdellidae (Hirudinida : Oligochaeta)
Invertebrate Taxonomy, 2002The phylogenetic relationships of the family Erpobdellidae, a group of non-sanguivorous leeches useful as bioindicators, were investigated with the combined use of morphological characters, mitochondrial cytochrome c oxidase subunit I, mitochondrial 12S rDNA and nuclear 18S rDNA.
openaire +1 more source
The diet of Erpobdella octoculata (Hirudinea: Erpobdellidae) in two Danish lowland streams
Fundamental and Applied Limnology, 1997The diet of leeches and the effect of prey size on feeding success were examined using gut analyses of Erpobdella octoculata from two Danish lowland streams. Five weight (size) classes of leeches were examined. For each insect prey found in the guts the width of the head capsule was measured.
Toman, Mihael, Dall, Peter Chr.
openaire +1 more source
Functional Ecology, 1996
1. The hypotheses tested were that foraging behavioural responses (number of meals consumed, the number of encounters with prey and feeding time) and activity (swimming time) of the freshwater predatory leech Nephelopsis obscura were higher in the dark than in the light, increased with the size of the predator and increased with the length of the ...
R. W. Davies, E. Dratnal, L. R. Linton
openaire +1 more source
1. The hypotheses tested were that foraging behavioural responses (number of meals consumed, the number of encounters with prey and feeding time) and activity (swimming time) of the freshwater predatory leech Nephelopsis obscura were higher in the dark than in the light, increased with the size of the predator and increased with the length of the ...
R. W. Davies, E. Dratnal, L. R. Linton
openaire +1 more source
Contribution to the knowledge of the genus Dina Blanchard, 1892 (Hirudinea: Erpobdellidae)
Hydrobiologia, 1995This paper deals with the genus Dina of the Erpobdellidae. A comprehensive comparison of all known species of this genus is given. A lectotype for Dina absoloni Johansson, 1913, is selected. A new species, Dina latestriata n. sp. from Prespa Lake in Greece is described. Data concerning the evolution of Dina are given.
Eike Neubert, Hasko Nesemann
openaire +1 more source
Dina sketi n. sp., a new erpobdellid leech (Hirudinida: Erpobdellidae) from Bosnia and Herzegovina
Zootaxa, 2014The concept of the genera within the family Erpobdellidae seems to be extremely artificial. Recent phylogenetic studies (Trontelj & Sket 2000, Siddall 2002) based on morphology and DNA sequence data showed that a revision of the family was necessary because the morphological characters used to distinguish known erpobdellid genera are not ...
Clemens, Grosser +2 more
openaire +2 more sources
Gamete Research, 1988
AbstractThe mature sperm of Dina lineata is of the modified type. The sperm are 48 μm long and 0.3 μm wide. The sperm are filiform and helicoidal cells with a distinct head, a midpiece, and a tail. There are two distinct regions in the head: the acrosome and the posterior acrosome, each with its own characteristic morphology.
S, Bonet, M, Molinas
openaire +2 more sources
AbstractThe mature sperm of Dina lineata is of the modified type. The sperm are 48 μm long and 0.3 μm wide. The sperm are filiform and helicoidal cells with a distinct head, a midpiece, and a tail. There are two distinct regions in the head: the acrosome and the posterior acrosome, each with its own characteristic morphology.
S, Bonet, M, Molinas
openaire +2 more sources
Intralacustrine speciation in the genus Dina (Hirudinea, Erpobdellidae) in Lake Ohrid (Yugoslavia)
Hydrobiologia, 1989An extensive speciation within Erpobdellidae (resp. Dina) has been noted in the Ohridsko Ezero (Lake) (Yugoslav-Albanian border). All species are anatomically similar to D. lineata, but differ strikingly in their body shapes. To the already described D. ohridana Sket and D. lepinjaSket & Sapkarev, descriptions of D. krilata sp. n., D. svilesta sp.
openaire +1 more source
A new Australian "Dineta/Barbronia-like" leech, and related matters (Hirudinoidea: ?Erpobdellidae)
1971(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
On the distribution of Dina stschegolewi (Hirudinida: Erpobdellidae) in the South Caucasus
Zoology in the Middle East, 2017Dina stschegolewi is an erpobdellid leech that was described by Lukin and Epshtein (1960) from the Crimean Peninsula.
Andrii Khomenko +7 more
openaire +1 more source