Life-history of the European Earwig, Forficula auricularia

Nature ◽  
1950 ◽  
Vol 166 (4210) ◽  
pp. 74-74 ◽  
Author(s):  
B. K. BEHURA
Keyword(s):  
Life History ◽  
Forficula Auricularia ◽  
History Of ◽  
European Earwig

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.

The larval stages of the Nematode Mermis nigrescens

Parasitology ◽  
1947 ◽  
Vol 38 (1-2) ◽  
pp. 10-16 ◽  
Author(s):  
H. A. Baylis
Keyword(s):  
Life History ◽  
Larval Development ◽  
Forficula Auricularia ◽  
Larval Stages ◽  
History Of

In a former paper (Baylis, 1944) an account was given of some observations on the life-history of Mermis nigrescens, and of its occurrence, naturally and experimentally, in earwigs (Forficula auricularia). As stated in that paper, the material then available did not seem to warrant an attempt to describe the larval development. Further material has now been obtained and studied, and it seems desirable to place on record some of the observations made, although many points still remain obscure.

scholarly journals The successful invasion of the European earwig across North America reflects adaptations to thermal regimes but not mean temperatures

2019 ◽  
Author(s):  
Jean-Claude Tourneur ◽  
Joël Meunier
Keyword(s):  
Life History ◽  
North America ◽  
Introduced Species ◽  
Life History Traits ◽  
Climate Adaptation ◽  
Forficula Auricularia ◽  
Data Set ◽  
Adaptive Capabilities ◽  
Thermal Regimes ◽  
European Earwig

ABSTRACTUnderstanding the mechanisms by which an introduced species adapt to newly encountered habitats is a major question in ecology. A key method to address this question is to collect data on introduced species that have successfully invaded a broad diversity of novel environments, and analyze how their life-history traits changed with these new constraints. Here, we present and analyze such a unique data set in the European earwig Forficula auricularia L, an insect that invaded North America during the last century. We conducted a common garden experiment, in which we measured 13 life-history traits in 4158 individuals from 19 populations across North America. Our results demonstrate that the successful invasion of this species came with changes in 10 of their life-history traits in response to thermal regimes (winter-summer and autumn-spring temperatures), but with no change in response to the overall mean temperatures of the invaded locations. Importantly, we show that some of these changes are by-products of novel thermal regimes, whereas others reflect adaptive strategies of females to these constraints. Overall, our findings reveal the importance of thermal regimes over mean temperatures in climate adaptation, and emphasize that studying adaptive capabilities is crucial to predict the limits of biological invasions.

Experimental life history of Echinostoma cinetorchis

1990 ◽  
Vol 28 (1) ◽  
pp. 39 ◽  
Author(s):  
S H Lee ◽  
J Y Chai ◽  
S T Hong ◽  
W M Sohn
Keyword(s):  
Life History ◽  
History Of

Queering Gender Identity Work: A Life History of a Black Transgender Woman

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Esethu Monakali
Keyword(s):  
Life History ◽  
Gender Identity ◽  
Public Spaces ◽  
Identity Work ◽  
Social Identities ◽  
Gender And Sexuality ◽  
Ongoing Effort ◽  
History Of ◽  
The Individual

This article offers an analysis of the identity work of a black transgender woman through life history research. Identity work pertains to the ongoing effort of authoring oneself and positions the individual as the agent; not a passive recipient of identity scripts. The findings draw from three life history interviews. Using thematic analysis, the following themes emerge: institutionalisation of gender norms; gender and sexuality unintelligibility; transitioning and passing; and lastly, gender expression and public spaces. The discussion follows from a poststructuralist conception of identity, which frames identity as fluid and as being continually established. The study contends that identity work is a complex and fragmented process, which is shaped by other social identities. To that end, the study also acknowledges the role of collective agency in shaping gender identity.

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