Ecological studies on the conditions and emergence of propagules in Sagittaria trifolia L., a perennial paddy weed. I. Seasonal changes in the tubers surviving in paddy fields.

1987 ◽  
Vol 32 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Kazuyuki ITOH ◽  
Masuji MIYAHARA
Keyword(s):  
Seasonal Changes ◽  
Paddy Fields ◽  
Ecological Studies

Seasonal cycle of the nest composition in the Ponerine ant Cryptopone sauteri (Hymenoptera: Formicidae)

Sociobiology ◽  
2017 ◽  
Vol 64 (4) ◽  
pp. 393
Author(s):  
Yuki Yamaguchi ◽  
Hiromi Yazawa ◽  
Satoru Iwanishi ◽  
Kazuyuki Kudô
Keyword(s):  
Life History ◽  
Seasonal Changes ◽  
Seasonal Cycle ◽  
Quantitative Information ◽  
Social Structures ◽  
Ecological Studies ◽  
Brood Development ◽  
Ponerine Ant ◽  
History Of ◽  
Annual Life History

The annual life history is a basic and important factor in ecological studies on temperate ant species. The biology of Ponerinae species has been studied for many species, but little attention has been paid to their life history. Cryptopone sauteri is one of the most common ants in temperate regions of Japan. However, there is no quantitative information on the life history of this species. We report seasonal changes in brood development, the emergence of reproductives and social structures of C. sauteri. Additionally, we discuss that this species possibly exhibits a polydomous nesting system.

scholarly journals Ecological studies of spiders in paddy fields in Kinki (II).

1975 ◽  
Vol 26 (2) ◽  
pp. 51-57
Author(s):  
Hozumi TANAKA
Keyword(s):  
Paddy Fields ◽  
Ecological Studies

scholarly journals Ecological Studies of Spiders in Paddy Fields in Kinki (I)

1973 ◽  
Vol 25 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Hozumi TANAKA
Keyword(s):  
Paddy Fields ◽  
Ecological Studies
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