Natural population dynamics of entomopathogenic nematode Steinernema affine (Steinernematidae) under dry conditions: Possible nematode persistence within host cadavers?

2007 ◽  
Vol 96 (1) ◽  
pp. 89-92 ◽  
Author(s):  
Vladimír Půža ◽  
Zdeněk Mráček
Keyword(s):  
Population Dynamics ◽  
Natural Population ◽  
Entomopathogenic Nematode ◽  
Dry Conditions ◽  
Steinernema Affine

scholarly journals Impact of deliberate termination of pregnancy on the natural population dynamics

2010 ◽  
pp. 397-403
Author(s):  
Snezana Stojsin
Keyword(s):  
Population Dynamics ◽  
Empirical Research ◽  
Natural Population ◽  
Birth Control ◽  
Social Problem ◽  
Birth Rate ◽  
Natural Increase ◽  
Termination Of Pregnancy ◽  
Unwanted Pregnancies ◽  
Artificial Abortion

Deliberate interruption of pregnancy is a very important social problem. The artificial abortion is a dominant procedure in the methods of birth control. The terminations of unwanted pregnancies are in direct correlation with the birth-rate and thus influence the rate of natural increase. The aim of this paper is to show influence of artificial abortion on natural population dynamics. This paper analyzes two sources of data: statistical and empirical research. .

scholarly journals Natural population dynamics and expansion of pathogenic clones of Staphylococcus aureus

2004 ◽  
Vol 114 (12) ◽  
pp. 1732-1740 ◽  
Author(s):  
Damian C. Melles ◽  
Raymond F.J. Gorkink ◽  
Hélène A.M. Boelens ◽  
Susan V. Snijders ◽  
Justine K. Peeters ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Population Dynamics ◽  
Natural Population

Chromosomal distribution and population dynamics of the 412 retrotransposon in a natural population of Drosophila melanogaster

Chromosoma ◽  
1995 ◽  
Vol 103 (10) ◽  
pp. 693-699
Author(s):  
S. Aulard ◽  
F. Lemeunier ◽  
C. Hoogland ◽  
N. Chaminade ◽  
J. F. Brookfield ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Drosophila Melanogaster ◽  
Natural Population ◽  
Chromosomal Distribution

scholarly journals Seasonal population dynamics of inoculated and indigenous steinernematid nematodes in an organic cropping system

Nematology ◽  
2004 ◽  
Vol 6 (6) ◽  
pp. 901-909 ◽  
Author(s):  
Holger Philipsen ◽  
Otto Nielsen
Keyword(s):  
Population Dynamics ◽  
Population Size ◽  
Cropping System ◽  
Soil Samples ◽  
Delia Radicum ◽  
Naturally Occurring ◽  
Seasonal Population ◽  
Seasonal Population Dynamics ◽  
Steinernema Affine ◽  
Tenebrio Molitor Larvae

AbstractThis study was based on naturally occurring and inoculated populations of steinernematid nematodes. The nematode populations were monitored in spring and autumn in 2 consecutive years in an organic cropping system and changes in population size were related to the presence of potential insect hosts. Nematode populations were estimated in terms of nematode incidence (percentage of positive soil samples) by using Tenebrio molitor larvae as bait. The population of naturally occurring nematodes (Steinernema affine and S. feltiae) was generally low (0–17% incidence for S. affine and 0–18% incidence for S. feltiae). Inoculated S. feltiae established well in half of the plots where inoculation had been performed and reached incidences of 87%. Establishment of inoculated nematodes, and population dynamics in general, was clearly influenced by the presence of insect hosts. In crops with high densities of potential hosts (Sitona lineatus in pea and partly Delia radicum in cabbage), nematode incidence increased from spring to autumn, whereas nematode incidence remained unchanged or decreased when few hosts were present (in barley, carrots, alfalfa and leek).

Natural Population Dynamics of Phlebotomine Sandflies in Panama

1971 ◽  
Vol 8 (4) ◽  
pp. 339-352 ◽  
Author(s):  
Byron N. Chaniotis ◽  
James M. Neely ◽  
Manuel A. Correa ◽  
Robert B. Tesh ◽  
Karl M. Johnson
Keyword(s):  
Population Dynamics ◽  
Natural Population ◽  
Phlebotomine Sandflies
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