Dispersal of the Ponto-Caspian amphipod Echinogammarus ischnus: invasion waves from the Pleistocene to the present

Abstract Objective: to study the association between high activity of Factor II (prothrombin) in blood plasma with G20210A mutation and the development of great obstetrical syndromes.Material and methods: A prospective clinical cohort study was conducted on 290 pregnant women (average age 31.7±4.7 years old). The main group was made up of 140 G20210A patients, while the control group comprised 150 women with the wild G20210G type. The aim was to evaluate the activity of Factor II in the venous blood plasma during the stages of pregnancy with regard to trophoblast invasion waves. As per results, association analysis of Factor II activity value and gestational complications was carried out.Results: In the control group, the median (Me) of Factor II activity ranged from 108% (preconception period) to 144% (pregnancy) [95% CI 130-150]. In patients with the GA type, the value was significantly higher in related periods, ranging from 149% to 181% [95% CI 142-195], p<0.0001. With Factor II activity ranging from 148.5% to 180.6%, pregnancies in the main group had no complications. Higher levels of Factor II activity were associated with the development of early and/or severe preeclampsia (PE) and fetal growth retardation (FGR).Conclusion: The data obtained regarding Factor II activity in blood plasma, juxtaposed with the development of great obstetrical syndromes, allow to assume that manifestation of G20210A in early and/or severe PE and FGR is associated with this coagulation factor's level of activity. Threshold value of the Factor II activity with G20210A mutation, allowing to predict the development of PE, comprised 171.0% at the preconception stage (AUC – 0.86; p<0.0001) and within 7-8 weeks of gestation it was 181.3% (AUC – 0.84; p<0.0001).

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Survey and Distribution of Crustacea Malacostraca in Poland

Crustaceana ◽

10.1163/156854093x00540 ◽

1993 ◽

Vol 65 (2) ◽

pp. 176-191 ◽

Cited By ~ 12

Author(s):

Krzysztof Jaźdźewski ◽

Alicja Konopacka

Keyword(s):

Eriocheir Sinensis ◽

Inland Waters ◽

Asellus Aquaticus ◽

Astacus Leptodactylus ◽

Relict Species ◽

Mysis Relicta ◽

Orconectes Limosus ◽

Echinogammarus Ischnus ◽

Glacial Relict ◽

The Baltic

AbstractThe paper presents a survey of Polish malacostracan fauna. In two tables the distribution of freshwater and Baltic species is presented according to the regionalization of the country used in "Catalogus Faunae Poloniae". Figures present some interesting distributions of freshwater malacostracan taxa. Own studies as well as the review of ample literature aimed at the preparation of the successive issues of "Catalogus Faunae Poloniae" allowed to present this survey of 121 malacostracan taxa, viz., Bathynellacea - 1 species, Mysidacea - 9, Amphipoda - 50, Isopoda - 47, Tanaidacea - 1, Cumacea - 1, Euphausiacea - 1, Decapoda - 11. In inland waters 31 species and subspecies do occur (Batynellacea - 1, Mysidacea - 1, Amphipoda - 22, Isopoda - 2, Decapoda - 5). In brackish waters of the Baltic Sea and its lagoons- 54 species (Mysidacea - 8, Amphipoda - 24, Isopoda - 12, Tanaidacea - 1, Cumacea - 1, Euphausiacea - 1, Decapoda - 8). Bi-environmental species are Asellus aquaticus and Eriocheir sinensis. The land malacostracan fauna of Poland includes 4 amphipod and 34 isopod (oniscoid) taxa. The Polish malacostracan fauna is composed mainly of species that have invaded this region of Europe in the postglacial period, but the oldest, preglacial elements are subterranean amphipods (niphargids, Crangonyx) and Bathynella natans, occurring only in southern Poland. The earliest postglacial invaders of the Baltic and/or the northern lakes were glacial relict species like the Mysis relicta group, Pallasiola quadrispinosa, Monoporeia affinis and Saduria entomon. The Southern Baltic malacostracan fauna is dominated by Boreal and Arctic/(Subarctic)-boreal elements but one third of this fauna is Mediterranean-boreal or Lusitanian-boreal in origin. Inland waters were probably settled next by Gammarus lacustris, G. pulex, Synurella ambulans, Asellus aquaticus and Astacus astacus, then by later incomers, like Gammarus balcanicus. Canal constructions in the XVIIIth century helped the immigration of Ponto-Caspian elements: Corophium curvispinum and Echinogammarus ischnus. Intentionally introduced to Polish waters are Astacus leptodactylus, Orconectes limosus and Pacifastacus leniusculus; unintentionally brought along were Eriocheir sinensis and Rhithropanopeus harrisii tridentatus, as well as Talitroides alluaudi and Trichorhina tomentosa to some greenhouses.

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The Dynamics of Invasion Waves

The Geometry of Ecological Interactions ◽

10.1017/cbo9780511525537.027 ◽

2000 ◽

pp. 482-512 ◽

Cited By ~ 8

Author(s):

Johan A.J. Metz ◽

Denis Mollison ◽

Frank van den Bosch

Keyword(s):

Invasion Waves

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Distribution of the Ponto-Caspian Amphipod Echinogammarus ischnus in the Great Lakes and Replacement of Native Gammarus fasciatus

Journal of Great Lakes Research ◽

10.1016/s0380-1330(98)70834-2 ◽

1998 ◽

Vol 24 (2) ◽

pp. 442-452 ◽

Cited By ~ 40

Author(s):

Ronald Dermott ◽

Jonathan Witt ◽

Young M. Um ◽

Maria González

Keyword(s):

Great Lakes ◽

Gammarus Fasciatus ◽

Echinogammarus Ischnus

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The Amphipod Fauna of Lake Kummerow (Mecklenburg, German Democratic Republic) With Reference To Echinogammarus Ischnus Stebbing, 1899

Crustaceana ◽

10.1163/156854090x00787 ◽

1990 ◽

Vol 58 (1) ◽

pp. 74-82 ◽

Cited By ~ 16

Author(s):

Jörg Kohn ◽

Arno Waterstraat

Keyword(s):

German Democratic Republic ◽

Democratic Republic ◽

Echinogammarus Ischnus

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Echinogammarus ischnus: another crustacean invader in the Laurentian Great Lakes basin

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f96-292 ◽

1997 ◽

Vol 54 (2) ◽

pp. 264-268 ◽

Cited By ~ 38

Author(s):

JDS Witt ◽

P DN Hebert ◽

W B Morton

Keyword(s):

Great Lakes ◽

Laurentian Great Lakes ◽

Great Lakes Basin ◽

Echinogammarus Ischnus

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Pregnancy complications in G20210A mutation carriers associated with high prothrombin activity

Thrombosis Journal ◽

10.1186/s12959-021-00289-4 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

M. G. Nikolaeva ◽

A. P. Momot ◽

M. S. Zainulina ◽

N. N. Yasafova ◽

I. A. Taranenko

Keyword(s):

Blood Plasma ◽

Venous Blood ◽

Threshold Value ◽

Main Group ◽

Trophoblast Invasion ◽

Control Group ◽

G20210a Mutation ◽

Factor Ii ◽

Invasion Waves ◽

In Blood Plasma

Abstract Objective To study the association between high activity of Factor II (prothrombin) in blood plasma with G20210A mutation and the development of great obstetrical syndromes. Material and methods A prospective clinical cohort study was conducted on 290 pregnant women (average age 31.7 ± 4.7 years old). The main group was made up of 140 G20210A patients, while the control group comprised 150 women with the wild G20210G type. The aim was to evaluate the activity of Factor II in the venous blood plasma during the stages of pregnancy with regard to trophoblast invasion waves. As per results, association analysis of Factor II activity value and gestational complications was carried out. Results In the control group, the median (Me) of Factor II activity ranged from 108% (preconception period) to 144% (pregnancy) [95% CI 130–150]. In patients with the GA type, the value was significantly higher in related periods, ranging from 149 to 181% [95% CI 142–195], p < 0.0001. With Factor II activity ranging from 148.5 to 180.6%, pregnancies in the main group had no complications. Higher levels of Factor II activity were associated with the development of early and/or severe preeclampsia (PE) and fetal growth retardation (FGR). Conclusion The data obtained regarding Factor II activity in blood plasma, juxtaposed with the development of great obstetrical syndromes, allow to assume that manifestation of G20210A in early and/or severe PE and FGR is associated with this coagulation factor’s level of activity. Threshold value of the Factor II activity with G20210A mutation, allowing to predict the development of PE, comprised 171.0% at the preconception stage (AUC – 0.86; p < 0.0001) and within 7–8 weeks of gestation it was 181.3% (AUC – 0.84; p < 0.0001).

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Invasion waves for a diffusive predator–prey model with two preys and one predator

International Journal of Biomathematics ◽

10.1142/s1793524520500813 ◽

2020 ◽

pp. 2050081

Author(s):

Xinzhi Ren ◽

Tianran Zhang ◽

Xianning Liu

Keyword(s):

Fixed Point ◽

Wave Speed ◽

Predator Prey ◽

Predator Prey Model ◽

Traveling Fronts ◽

Prey Model ◽

Traveling Front ◽

Minimal Wave Speed ◽

Invasion Waves ◽

Coexistence Equilibrium

In this paper, we study the existence of invasion waves of a diffusive predator–prey model with two preys and one predator. The existence of traveling semi-fronts connecting invasion-free equilibrium with wave speed [Formula: see text] is obtained by Schauder’s fixed-point theorem, where [Formula: see text] is the minimal wave speed. The boundedness of such waves is shown by rescaling method and such waves are proved to connect coexistence equilibrium by LaSalle’s invariance principle. The existence of traveling front with wave speed [Formula: see text] is got by rescaling method and limit arguments. The non-existence of traveling fronts with speed [Formula: see text] is shown by Laplace transform.

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