scholarly journals Ecological mechanisms regulating the dynamics of the field rotifer population in a subtropical lake: evidence from the density, reproduction, and morphology of a case rotifer, Brachionus angularis

2019 ◽  
Vol 34 (1) ◽  
pp. 49-63
Author(s):  
Xin-Li Wen ◽  
Ying-Hao Xue ◽  
Gen Zhang ◽  
Xian-Ling Xiang ◽  
Yi-Long Xi
1988 ◽  
Vol 20 (8-9) ◽  
pp. 167-178
Author(s):  
O. M. Skulberg

Off-flavour substances may be regarded as a resource which can be used to study special ecological mechanisms. Relevant research on off-flavours is inextricably combined with the study of perception, ethology, genetic control etc. The chemicals concerned are commonly perceived by the senses of olfaction and gustation. Thus research on the chemical ecology of off-flavour substances in the aquatic environment involves the study of a variety of disciplines. For example the biochemistry of the relevant substances and appropriate metabolic pathways must be considered. Chemical properties are important for the behaviour of the substances. The production of off-flavours by organisms is related to phenological circumstances. The biotic effects of ecologically significant substances are dependent on several environmental factors. This paper draws attention to the possible application of fundamental research in this area to selected problems of ecological importance.


Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 531
Author(s):  
Gordon Port ◽  
Alan Craig ◽  
Mark Shirley

Following treatment with molluscicides or other controls, slugs can recolonize a site very quickly, but the proportion of the colonizing slugs moving from adjacent areas (horizontal dispersal) and the proportion from within the soil (vertical dispersal) has not previously been established. At a grassland site, barriers were used to exclude and trap slugs in order to estimate horizontal and vertical movement over a period of 32 months. For the first 15 months vertical movement made a significant contribution to the slugs recolonizing a grassland area. The ecological mechanisms occurring and the implications for the control of slugs are discussed.


2021 ◽  
Vol 313 ◽  
pp. 107385
Author(s):  
Uma Khumairoh ◽  
Egbert A. Lantinga ◽  
Irfan Handriyadi ◽  
Rogier P.O. Schulte ◽  
Jeroen C.J. Groot

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