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.

Nutrient cycling in a Carex lacustris wetland

1977 ◽  
Vol 55 (6) ◽  
pp. 630-638 ◽  
Author(s):  
John M. Bernard ◽  
Betsy A. Solsky
Keyword(s):  
Life History ◽  
Nutrient Cycling ◽  
Seasonal Changes ◽  
Early Growth ◽  
Total Production ◽  
Belowground Production ◽  
Aboveground Production ◽  
History Of ◽  
Phosphorus And Potassium ◽  
Carex Lacustris

Seasonal changes in aboveground and belowground life history of Carex lacustris were determined and used to study primary production and nutrient cycling in the ecosystem. Seasonal aboveground production was estimated to be about 965 g/m2 per year, with a peak rate of 20.9 g/m2 per day reached in late July. Belowground production was estimated to be 208 g/m2 per year for a total production estimate of 1173 g/m2 per year.Nitrogen, phosphorus, and potassium begin the season with high percentage concentrations in green overwintering shoots but the percentages decline to only about one-third of the original at death in December. Early growth in spring is characterized by a redistribution of these nutrients in the shoots, some translocation from belowground tissues, and uptake from the soil. Calciumand magnesium do not show any important translocation patterns during the year.The yearly budget of uptake and loss of nutrients during a year is estimated to be 15.9 g/m2 nitrogen, 1.9 g/m2 phosphorus, 16.6 g/m2 potassium, 2.9 g/m2 calcium, and 1.5 g/m2 magnesium.

scholarly journals Evolution of morphological and climatic adaptations inVeronica L.(Plantaginaceae)

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2333 ◽  
Author(s):  
Jian-Cheng Wang ◽  
Bo-Rong Pan ◽  
Dirk C. Albach
Keyword(s):  
Life History ◽  
Substitution Rate ◽  
Parallel Evolution ◽  
Morphological Characters ◽  
Annual Species ◽  
Selective Pressures ◽  
History Of ◽  
Phylogenetic Perspective ◽  
Drought Resistant ◽  
Annual Life History

Perennials and annuals apply different strategies to adapt to the adverse environment, based on ‘tolerance’ and ‘avoidance’, respectively. To understand lifespan evolution and its impact on plant adaptability, we carried out a comparative study of perennials and annuals in the genusVeronicafrom a phylogenetic perspective. The results showed that ancestors of the genusVeronicawere likely to be perennial plants. Annual life history ofVeronicahas evolved multiple times and subtrees with more annual species have a higher substitution rate. Annuals can adapt to more xeric habitats than perennials. This indicates that annuals are more drought-resistant than their perennial relatives. Due to adaptation to similar selective pressures, parallel evolution occurs in morphological characters among annual species ofVeronica.

LIFE HISTORY AND POPULATION CHARACTERISTICS OF THE EUROPEAN EARWIG, FORFICULA AURICULARIA (DERMAPTERA: FORFICULIDAE), AT VANCOUVER, BRITISH COLUMBIA

1975 ◽  
Vol 107 (8) ◽  
pp. 819-824 ◽  
Author(s):  
Robert J. Lamb ◽  
W. G. Wellington
Keyword(s):  
Life History ◽  
Seasonal Changes ◽  
The Body ◽  
Population Characteristics ◽  
Forficula Auricularia ◽  
Body Weights ◽  
Population Sizes ◽  
Developmental Rates ◽  
History Of ◽  
European Earwig

AbstractThe life history of the European earwig at Vancouver, B.C., is described and divided into two periods: the nesting phase and the free-foraging phase. Seasonal changes in population characteristics are documented and compared in sparsely and densely vegetated habitats. The developmental rates, population sizes, and sex ratios, but not the body weights, differ between the two habitats. Suggested reasons for these differences are advanced.

Seasonal variation in the biochemical composition of Mytilicola intestinalis

Parasitology ◽  
1969 ◽  
Vol 59 (4) ◽  
pp. 775-782 ◽  
Author(s):  
C. S. Williams
Keyword(s):  
Life History ◽  
Seasonal Variation ◽  
Seasonal Changes ◽  
Biochemical Composition ◽  
Free Living ◽  
Protein Levels ◽  
Copepod Parasite ◽  
History Of ◽  
Research Assistantship ◽  
The University

The biochemical constitution of the copepod parasite Mytilicola intestinalis was determined and seasonal changes were detected which, in general, could be correlated with the life-history of the parasite.Biochemical constituents have been discussed in relation to those in other endoparasites and free-living crustaceans. It was concluded that carbohydrates and lipids both formed important stores of energy in M. intestinalis. Protein levels were reduced compared with those in free-living forms.This work forms part of a Ph.D. thesis in the University of London. It was completed during the tenure of a Research Assistantship at The Polytechnic, Regent Street, London W. 1.

Seasonal cycle in vitamin A1/A2-based visual pigment composition during the life history of coho salmon (Oncorhynchus kisutch)

2005 ◽  
Vol 192 (3) ◽  
pp. 301-313 ◽  
Author(s):  
S. E. Temple ◽  
E. M. Plate ◽  
S. Ramsden ◽  
T. J. Haimberger ◽  
W.-M. Roth ◽  
...  
Keyword(s):  
Life History ◽  
Visual Pigment ◽  
Seasonal Cycle ◽  
Coho Salmon ◽  
Oncorhynchus Kisutch ◽  
Pigment Composition ◽  
History Of

An ecological Study of the “Lucerne Flea” (Smynthurus viridis, Linn.)—II

1932 ◽  
Vol 23 (2) ◽  
pp. 151-190 ◽  
Author(s):  
D. Stewart Maclagan
Keyword(s):  
Life History ◽  
Seasonal Cycle ◽  
Field Data ◽  
Ecological Study ◽  
Sensu Stricto ◽  
Free Play ◽  
Physical Factors ◽  
Normal Environment ◽  
History Of ◽  
Quantitative Sample

Following the method of procedure already outlined, the life-history of Smynthurus viridis, its bionomics in sensu stricto, and the influence of environmental factors under controlled laboratory conditions, having been considered, the next step is an examination of the seasonal cycle of events as occurring in nature. Part II is, therefore, devoted largely to an analysis of the field data, coupled with an interpretation thereof as substantiated by critically planned and controlled laboratory experimentation; this reinforcement being rendered necessary on account of a multiplicity of factors acting simultaneously in nature. The chief difficulty in an investigation of this kind (as with all problems concerned with fluctuations in the numbers of organisms) lies in the fact that there are few methods for obtaining quickly and easily an accurate quantitative sample of the numbers and kind of organisms; and, secondly, there is the difficulty of finding (in a long-inhabited country like Britain) a “normal” environment, i.e., one in which purely natural agencies have been allowed free play over a sufficient interval of time to allow a state of equilibrium to have become established between the various members of the community to which Smynthurus belongs, in their relationship to the physical factors of the environment and to each other.

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