The Fisher, Life History, Ecology and Behavior

10.2307/4682 ◽  
1984 ◽  
Vol 53 (3) ◽  
pp. 1037
Author(s):  
H. N. Southern ◽  
R. A. Powell
Keyword(s):  
Life History ◽  
And Behavior

Hormones and Behavior

2019 ◽  
pp. 11-26
Author(s):  
Maren N. Vitousek ◽  
Laura A. Schoenle
Keyword(s):  
Life History ◽  
Life Histories ◽  
Life History Traits ◽  
Developmental Plasticity ◽  
Endocrine System ◽  
Phenotypic Traits ◽  
Social Environments ◽  
Trade Offs ◽  
And Behavior

Hormones mediate the expression of life history traits—phenotypic traits that contribute to lifetime fitness (i.e., reproductive timing, growth rate, number and size of offspring). The endocrine system shapes phenotype by organizing tissues during developmental periods and by activating changes in behavior, physiology, and morphology in response to varying physical and social environments. Because hormones can simultaneously regulate many traits (hormonal pleiotropy), they are important mediators of life history trade-offs among growth, reproduction, and survival. This chapter reviews the role of hormones in shaping life histories with an emphasis on developmental plasticity and reversible flexibility in endocrine and life history traits. It also discusses the advantages of studying hormone–behavior interactions from an evolutionary perspective. Recent research in evolutionary endocrinology has provided insight into the heritability of endocrine traits, how selection on hormone systems may influence the evolution of life histories, and the role of hormonal pleiotropy in driving or constraining evolution.

Life History and Behavior of the Bramble Leafhopper, Ribautiana tenerrima (H.-S.) (Homoptera: Cicadellidae)

1960 ◽  
Vol 92 (1) ◽  
pp. 10-20 ◽  
Author(s):  
J. Raine
Keyword(s):  
Life History ◽  
North America ◽  
Vancouver Island ◽  
Dry Season ◽  
Lower Fraser Valley ◽  
And Behavior ◽  
Fraser Valley

Since 1947, when the bramble leafhopper, Ribautiana tenerrima (H.-S.) (rubi Hardy, misella 13011.), was first reported in North America near Victoria, B.C., it has become a serious pest in cane fruit plantings on southern Vancouver Island and the lower Fraser Valley. Hoth nymphs and adults suck the sap from the leaves, producing a white stippling on the upper surfaces (Fig. 1). In a dry season a severe infestation causes many leaves to become curled and appear burned. The canes lack vigor and the size of the fruit is reduced. This is a report on a study of the life history and behavior of the species conducted at Victoria from 1953 to 1957.

scholarly journals Absence of strong heterosis for life span and other life history traits in Caenorhabditis elegans.

Genetics ◽  
1993 ◽  
Vol 134 (2) ◽  
pp. 465-474 ◽  
Author(s):  
T E Johnson ◽  
E W Hutchinson
Keyword(s):  
Life History ◽  
Caenorhabditis Elegans ◽  
Life Span ◽  
Life History Traits ◽  
Environmental Variation ◽  
F1 Hybrids ◽  
Wild Type ◽  
Wild Strains ◽  
And Behavior ◽  
Type Strains

Abstract We have examined crosses between wild-type strains of Caenorhabditis elegans for heterosis effects on life span and other life history traits. Hermaphrodites of all wild strains had similar life expectancies but males of two strains had shorter life spans than hermaphrodites while males of two other strains lived longer than hermaphrodites. F1 hermaphrodite progeny showed no heterosis while some heterosis for longer life span was detected in F1 males. F1 hybrids of crosses between two widely studied wild-type strains, N2 (var. Bristol) and Berg BO (var. Bergerac), were examined for rate of development, hermaphrodite fertility, and behavior; there was no heterosis for these life history traits. Both controlled variation of temperature and uncontrolled environmental variation affected the length of life of all genotypes. Significant G x E effects on life span were observed in comparisons of N2 and Berg BO hermaphrodites, or N2 hermaphrodites and males, or N2 and a Ts mutant strain (DH26). Nevertheless, within an experiment, environmental variation was minimal and life spans were quite replicable.

scholarly journals Non-target impacts of soybean insecticidal seed treatments on the life history and behavior of Podisus nigrispinus, a predator of fall armyworm

Chemosphere ◽  
2018 ◽  
Vol 191 ◽  
pp. 342-349 ◽  
Author(s):  
Pablo C. Gontijo ◽  
Dyrson O. Abbade Neto ◽  
Rodrigo L. Oliveira ◽  
J.P. Michaud ◽  
Geraldo A. Carvalho
Keyword(s):  
Life History ◽  
Fall Armyworm ◽  
Seed Treatments ◽  
And Behavior

Interrelations between senescence, life-history traits, and behavior in planktonic copepods

Ecology ◽  
2015 ◽  
Vol 96 (8) ◽  
pp. 2225-2235 ◽  
Author(s):  
Thomas Kiørboe ◽  
Sara Ceballos ◽  
Uffe Høgsbro Thygesen
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Planktonic Copepods ◽  
And Behavior
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