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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Male Alternative Reproductive Tactics and Associated Evolution of Anatomical Characteristics in Loliginid Squid

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Marian, Jose E. A. R. [1] ; Apostolico, Ligia H. [1] ; Chiao, Chuan-Chin [2] ; Hanlon, Roger T. [3] ; Hirohashi, Noritaka [4] ; Iwata, Yoko [5] ; Mather, Jennifer [6] ; Sato, Noriyosi [7] ; Shaw, Paul W. [8, 9]
Total Authors: 9
[1] Univ Sao Paulo, Inst Biosci, Dept Zool, Sao Paulo, SP - Brazil
[2] Natl Tsing Hua Univ, Dept Life Sci, Hsinchu - Taiwan
[3] Marine Biol Lab, Woods Hole, MA 02543 - USA
[4] Shimane Univ, Dept Life Sci, Matsue, Shimane - Japan
[5] Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba - Japan
[6] Univ Lethbridge, Dept Psychol, Lethbridge, AB - Canada
[7] Tokai Univ, Sch Marine Sci & Technol, Dept Fisheries, Shizuoka - Japan
[8] Rhodes Univ, Dept Ichthyol & Fisheries Sci, Grahamstown - South Africa
[9] Aberystwyth Univ, Inst Biol Environm & Rural Sci, Aberystwyth, Dyfed - Wales
Total Affiliations: 9
Document type: Journal article
Source: FRONTIERS IN PHYSIOLOGY; v. 10, OCT 15 2019.
Web of Science Citations: 0

Loliginid squids provide a unique model system to explore male alternative reproductive tactics (ARTs) and their linkage to size, behavioral decision making, and possibly age. Large individuals fight one another and the winners form temporary consortships with females, while smaller individuals do not engage in male-male agonistic bouts but use various sneaker tactics to obtain matings, each with varying mating and fertilization success. There is substantial behavioral flexibility in most species, as smaller males can facultatively switch to the alternative consort behaviors as the behavioral context changes. These forms of ARTs can involve different: mating posture; site of spermatophore deposition; fertilization success; and sperm traits. Most of the traits of male dimorphism (both anatomical and behavioral) are consistent with traditional sexual selection theory, while others have unique features that may have evolved in response to the fertilization environment faced by each temporary or permanent male morph. (AU)

FAPESP's process: 13/02653-1 - Evolution of sperm transfer mechanisms in cephalopods: adaptative convergences associated with habitat shifts in the marine environment?
Grantee:José Eduardo Amoroso Rodriguez Marian
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/19180-2 - Cephalopod International Advisory Council Conference
Grantee:José Eduardo Amoroso Rodriguez Marian
Support type: Research Grants - Meeting - Abroad
FAPESP's process: 14/11008-5 - Function and evolution of the seminal receptacle in Decapodiformes (Mollusca: Cephalopoda): unraveling postcopulatory sexual selection mechanisms in cephalopods
Grantee:Luiza de Oliveira Saad
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/15447-6 - Unraveling post-copulatory sexual selection mechanisms in cephalopods: morphology of the squid's seminal receptacle applying Confocal Microscopy and 3D Reconstruction
Grantee:Luiza de Oliveira Saad
Support type: Scholarships abroad - Research Internship - Master's degree
FAPESP's process: 17/16182-1 - Post-copulatory sexual selection in a squid (Mollusca: Cephalopoda) with male intrasexual dimorphism and two fertilization sites
Grantee:Lígia Haselmann Apostólico
Support type: Scholarships in Brazil - Doctorate