Geographical variation in sexual behavior and body traits in a sex role reversed wolf spider
| Autor: | Alfredo V. Peretti, Virginia Garcia Diaz, Anita Aisenberg, Fedra Bollatti |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Male media_common.quotation_subject Otras Ciencias Biológicas Wolf spider Argentina Zoology LYCOSID 010603 evolutionary biology 01 natural sciences SEXUAL SELECTION Life history theory Nesting Behavior Courtship Ciencias Biológicas 03 medical and health sciences Sexual Behavior Animal parasitic diseases Animals Body Size Mating BURROW SIZE Ecology Evolution Behavior and Systematics media_common Abiotic component biology Ecology Spiders General Medicine biology.organism_classification Burrow INTRASPECIFIC VARIATION 030104 developmental biology Sexual selection SEXUAL BEHAVIORS Allocosa BODY TRAITS Uruguay Female CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | Die Naturwissenschaften. 104(5-6) |
| ISSN: | 1432-1904 |
| Popis: | Mating partners need to recognize, assess each other, and exchange information through behavioral events that occur before, during, and after mating. Sexual signals, as well as life history traits, are influenced by selective pressures and environmental factors that can vary across distant geographical areas. Allocosa senex is a sand-dwelling wolf spider which constructs burrows along the sandy coasts of Argentina, Brazil, and Uruguay. Females are the mobile sex that searches for males and initiates courtship. They prefer males which construct longer burrows, and males prefer virgin females in good body condition. The objective of this study was to compare sexual behavior patterns, as well as body characteristics and burrow dimensions, between two geographically distant locations of A. senex, one in Uruguay (Uruguayan location) and the other from central Argentina (Argentinean location). We found differences in the number of male abdominal vibrations, male and female touches during mating, and number of erections of male leg spines, which all were higher in matings of Argentinean pairs. On the other hand, male body mass and female body condition were higher in Uruguayan individuals. The wide distribution of A. senex could be determining variations in the biotic and abiotic features that affect the species, generating differences in the strength of selective forces acting on individuals from the two studied locations. Fil: Bollatti, Fedra Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: Garcia Diaz, Virginia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Diversidad Animal I; Argentina Fil: Peretti, Alfredo Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Diversidad Animal I; Argentina Fil: Aisenberg Olivera, Anita Diana. Instituto de Investigaciones Biológicas Clemente Estable; Uruguay |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink