scholarly journals Senescence and costs of reproduction in the life history of a small precocial species

2019 ◽  
Vol 9 (12) ◽  
pp. 7069-7079
Author(s):  
Fritz Trillmich ◽  
Edda Geißler ◽  
Anja Guenther
Keyword(s):  
Life History ◽  
Costs Of Reproduction ◽  
History Of

scholarly journals Herbivore‐Mediated Ecological Costs of Reproduction Shape the Life History of an Iteroparous Plant

2008 ◽  
Vol 171 (2) ◽  
pp. 141-149 ◽  
Author(s):  
Tom E. X. Miller ◽  
Brigitte Tenhumberg ◽  
Svata M. Louda
Keyword(s):  
Life History ◽  
Costs Of Reproduction ◽  
History Of

Costs of reproduction in life history of a perennial plant Carex secalina

2011 ◽  
Vol 6 (5) ◽  
pp. 870-877 ◽  
Author(s):  
Agnieszka Bogdanowicz ◽  
Paweł Olejniczak ◽  
Marlena Lembicz ◽  
Waldemar Żukowski
Keyword(s):  
Life History ◽  
Life History Theory ◽  
Plant Biomass ◽  
Total Production ◽  
Above Ground Biomass ◽  
Costs Of Reproduction ◽  
Perennial Plant ◽  
Reproductive Structures ◽  
Ground Biomass ◽  
History Of

AbstractWe tested a hypothesis based on life history theory that examines reproductive costs incurred by individuals in consecutive years of their life. A multi-year dataset of resource allocation to vegetative and reproductive structures was analysed in Carex secalina — a perennial, monoecious sedge, reproducing only sexually. In a four-year garden experiment, we assessed above-ground biomass at the end of each season and reproductive allocation expressed as the total length of male and female spikes. The study was aimed at determining how size and age of a plant relates to its reproduction, and how the rate of reproduction affects the year-toyear biomass change in Carex secalina. We observed that after each reproductive episode, individuals had significantly smaller sizes and produced a lower number of generative tillers. The total production of reproductive structures decreased significantly with age in all populations. Moreover, the decrease in plant biomass was greater when more reproductive structures were produced in a previous year, which indicates that the plants incur costs of reproduction in terms of above-ground biomass production.

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.

Sign in / Sign up

Export Citation Format

Share Document