scholarly journals Long-term changes in the malacofauna of the pond-type experimental lake Warniak (Mazurian Lakeland, North-Eastern Poland)

2017 ◽  
Vol 25 (1) ◽  
pp. 27-36
Author(s):  
Ewa Jurkiewicz-Karnkowska ◽  
Beata Jakubik ◽  
Krzysztof Lewandowski
Keyword(s):  
North Eastern ◽  
Long Term Changes ◽  
Pond Type

scholarly journals Long-term changes in the north-eastern coast the Black Sea population of an invasive bivalve Anadara kagoshimensis

Trudy VNIRO ◽  
2018 ◽  
Vol 170 ◽  
pp. 7-25
Author(s):  
G. A. Kolyuchkina ◽  
◽  
M. V. Chikina ◽  
S. V. Biryukova ◽  
N. I. Bulysheva ◽  
...  
Keyword(s):  
Black Sea ◽  
Eastern Coast ◽  
The Black Sea ◽  
The North ◽  
Anadara Kagoshimensis ◽  
North Eastern ◽  
Long Term Changes

scholarly journals Predictive markers of transmission in areas with different malaria endemicity in north-eastern Tanzania based on seroprevalence of antibodies against Plasmodium falciparum

2021 ◽  
Author(s):  
Robert Diotrephes Kaaya ◽  
Debora C Kajeguka ◽  
Johnson J Matowo ◽  
Arnold J Ndaro ◽  
Franklin W Mosha ◽  
...  
Keyword(s):  
Plasmodium Falciparum ◽  
Antibody Response ◽  
Age Groups ◽  
Transmission Dynamics ◽  
Serological Markers ◽  
Low Transmission ◽  
Malaria Endemicity ◽  
North Eastern ◽  
Long Term Changes

Abstract Objective The objective of this study was to assess Plasmodium falciparum exposure in areas with different malaria endemicity in north-eastern Tanzania using serological markers; PfAMA-1 and PfMSP-119.Results Bondo had a higher seroprevalence 36.6% (188) for PfAMA-1 as compared to Hai 13.8% (33), χ2=34.66, p<0.01. Likewise, Bondo had a higher seroprevalence 201(36.6%) for PfMSP-1 as compared to Hai 41 (17.2%), χ2 =29.62, p<0.01. Anti-PfAMA-1 titters were higher in malaria positive individuals (n = 47) than in malaria negative individuals (n = 741) (p = 0.07). Anti-PfMSP-1 antibody concentrations were significantly higher in malaria-positive individuals (n = 47) than in malaria-negative individuals (n = 741) (p = 0.003).Antibody response against PfAMA-1 was significantly different between the three age groups; <5 years, 5 to 15 years and >15 years in both sites of Bondo and Hai. Likewise, antibody response against PfMSP-119 was significantly different between the three-age groups in the two sites. (p<0.001). We also found significant differences in the anti-PfAMA-1and anti-PfMSP-119 antibody concentrations among the three age groups in the two sites (p=0.004 and 0.005) respectively. Immunological indicators of Plasmodium falciparum exposure have proven to be useful in explaining long-term changes in the transmission dynamics especially in low transmission settings.

Long-term changes in abundance of bats as revealed by their frequency in tawny owls’ diet

Biologia ◽  
2010 ◽  
Vol 65 (4) ◽  
Author(s):  
Grzegorz Lesiński
Keyword(s):  
Average Value ◽  
Large Samples ◽  
North Eastern ◽  
Long Term Changes ◽  
Increasing Trend ◽  
Prey Items

AbstractPercentage of bats in tawny owls’ diet was compared in three periods: I — before 1976, II — 1976–1992, III — 1993–2009, by using the published and unpublished material from Poland (only samples over 100 vertebrate prey items). This species of owl showed an opportunistic predation on bats and took them more frequently in periods of higher abundance. Before the mass use of toxic pesticides in Poland, in the period I bats constituted more than 2% of vertebrates in four out of five diet samples (median 2.4%). The lowest bat abundance occurred in Poland in the 1980s and resulted in the lowest percentage of bats taken by owls in the period II (n = 11, median 0.2%). Due to the recovery of bat populations in the period III, the percentage of bats in tawny owls’ diet increased (n = 23, median 0.7%). In large samples (over 200 vertebrate items, n = 21) collected in central and north-eastern Poland the percentage of bats increased from 1980 to 2009 (the estimated average value at the end of that period slightly exceeded 1%). Samples collected at the same five sites in 1975–1992 and again in 2000–2009, confirmed the increasing trend in percentage of bats captured by tawny owls noted in last years.

LONG TERM CHANGES OF WETLANDS IN THE CONTEXT OF ANTHROPIC INFLUENCES: THE CASE OF ROSCI0222 (NORTH-EASTERN ROMANIA)

2020 ◽  
Vol 15 (1) ◽  
pp. 27-36
Author(s):  
Alina Georgiana CÎȘLARIU ◽  
◽  
Pavel ICHIM ◽  
Ciprian Claudiu MÂNZU
Keyword(s):  
North Eastern ◽  
Long Term Changes
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