scholarly journals Peer Review #1 of "A long-term study on zooplankton in two contrasting cascade reservoirs (Iguaçu River, Brazil): effects of inter-annual, seasonal, and environmental factors (v0.2)"

2020 ◽  
Author(s):  
O Maciel
Keyword(s):  
Environmental Factors ◽  
Peer Review ◽  
Term Study ◽  
Cascade Reservoirs ◽  
Long Term Study ◽  
Iguaçu River

scholarly journals Environmental Factors, Reproductive Success and Population Dynamics in the Montane Vole, Microtus montanus

1986 ◽  
Vol 10 ◽  
pp. 126-128
Author(s):  
Aelita Pinter
Keyword(s):  
Population Dynamics ◽  
Reproductive Success ◽  
Environmental Factors ◽  
Population Density ◽  
Environmental Variables ◽  
Term Study ◽  
Microtus Montanus ◽  
Long Term Study ◽  
Microtine Rodents

Multiannual fluctuations in population density ("cycles") have been known since antiquity (Elton 1942). Numerous hypotheses have been proposed to explain this phenomenon (for reviews see Krebs and Myers 1974, Finerty 1980, Taitt and Kreh; 1985). However, none of these hypotheses, alone or in combination, can either explain the causality of cycles or predict their dynamics. The ultimate objectives of this long-term study are to answer two questions: (1) What causes multiannual fluctuations in the population density of microtine rodents?; and (2) How can cycles be predicted? The proximate objectives are to determine to what extent environmental variables - acting through reproductive responses of Microtus montanus- contribute to the population density cycles of these rodents.

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