Seasonal variation in reproduction and population structure of the bivalve Limopsis tajimae in the upper bathyal zone of Suruga Bay, Japan

1998 ◽  
Vol 132 (3) ◽  
pp. 471-481 ◽  
Author(s):  
M. Nakaoka ◽  
S. Ohta
Keyword(s):  
Population Structure ◽  
Seasonal Variation ◽  
Suruga Bay

Seasonal variation in the population structure of the freshwater prawn Macrobrachium brasiliense (Decapoda: Palaemonidae) in a neotropical region

Nauplius ◽  
2021 ◽  
Vol 29 ◽  
Author(s):  
Caio Santos Nogueira ◽  
Douglas Fernandes Rodrigues Alves ◽  
Rogerio Caetano Costa ◽  
Ariádine Cristine Almeida
Keyword(s):  
Population Structure ◽  
Seasonal Variation ◽  
Neotropical Region ◽  
Freshwater Prawn

Seasonal variation in genetic population structure of sábalo (Prochilodus lineatus) in the Lower Uruguay River

Genetica ◽  
2013 ◽  
Vol 141 (7-9) ◽  
pp. 401-407 ◽  
Author(s):  
Eva Carolina Rueda ◽  
Pedro Carriquiriborde ◽  
Alexander Miguel Monzón ◽  
Gustavo M. Somoza ◽  
Guillermo Ortí
Keyword(s):  
Population Structure ◽  
Seasonal Variation ◽  
Genetic Population Structure ◽  
Genetic Population ◽  
Prochilodus Lineatus ◽  
Uruguay River

Raciation in Epacris impressa. III. Polymorphic populations

1977 ◽  
Vol 25 (3) ◽  
pp. 325 ◽  
Author(s):  
HM Stace ◽  
YJ Fripp
Keyword(s):  
Population Structure ◽  
Seasonal Variation ◽  
Flowering Time ◽  
Hybrid Origin ◽  
Disruptive Selection ◽  
Seasonal Differences ◽  
The Mean

Polymorphic populations occur throughout most of the distribution of E. impressa Labill., in which pink-flowered plants and white-flowered plants grow intermixed in the same locality. Measurements of corolla lengths indicate that these are panmictic populations: there is no difference between the mean lengths of pink and white corollas. In homogeneous populations (the vast majority) there is no seasonal variation in the flowering times of white-flowered bushes and pink-flowered bushes. At Wilson's Promontory polymorphic scarlet/pink/white populations occur near polymorphic pinklwhite populations and monomorphic scarlet populations. Some of these triple polymorphic populations show heterogeneity of population structure, with seasonal differences of flowering time in the different morphs. Polymorphic populations are generally intermediate between monomorphic populations of the different races of E. impressa. It is likely that they are of hybrid origin. The hypothesis that polymorphic populations form a base for disruptive selection into monomorphic populations is also discussed.

MS Disease Activity Shows Seasonal Variation

2010 ◽  
Vol 43 (20) ◽  
pp. 33
Author(s):  
JEFF EVANS
Keyword(s):  
Seasonal Variation ◽  
Disease Activity
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