Locatello, Lisa and Borgheresi, Oliviero and Poli, Federica and Pilastro, Andrea and Rasotto, Maria
(2021)
Data from: Black goby territorial males adjust their ejaculate’s characteristics in response to the presence of sneakers.
[Data Collection]
Collection description
In many species males can rapidly adjust their ejaculate performance in response to changing levels of sperm competition, an ability that is probably mediated by seminal fluid adaptive plasticity. In the black goby, Gobius niger, female spawning in the nest of a territorial male can last hours, and males attach a viscous ejaculate to the nest roof, from which sperm are slowly released. During spawning, sneaker males attempt to approach the nest and release their sperm, and territorial males intensify their defensive effort at the increasing of sneaking pressure. We show here that territorial males adjust the characteristics of their seminal fluid in response to the number of competitor sneakers. Territorial males produce an ejaculate from which sperm are released at a rate that decreases as the number of surrounding competitor sneakers increases. Field observations showed that multiple sneaking attempts occurred sequentially, forcing territorials to frequently leave the nest. Overall these results suggest that the adjustment of seminal fluid viscosity may guarantee a continuous release of sperm from the ejaculate, although at a lower rate, when the territorial male is engaged in prolonged nest defense possibly minimizing the postcopulatory cost of an increased precopulatory mate guarding.
| DOI: |
 10.5061/dryad.gb5mkkwpq |
| Keywords: |
FOS: Biological sciences, FOS: Biological sciences |
| Subjects: |
Life Sciences > Ecology, Evolution and Environmental Biology: Population, community and ecosystem ecology, evolutionary biology, behavioural ecology, microbial ecology > Evolutionary ecology
Life Sciences > Ecology, Evolution and Environmental Biology: Population, community and ecosystem ecology, evolutionary biology, behavioural ecology, microbial ecology > Evolutionary genetics
Life Sciences > Ecology, Evolution and Environmental Biology: Population, community and ecosystem ecology, evolutionary biology, behavioural ecology, microbial ecology > Coevolution, biological mechanisms and ecology of species interactions (e.g. symbiosis, parasitism, mutualism, food-webs)
Life Sciences > Applied Life Sciences, Biotechnology and Molecular and Biosystems engineering: Applied plant and animal sciences; forestry; food sciences; applied biotechnology; environmental, and marine biotechnology; applied bioengineering; biomass, biofuels; biohazard > Applied animal sciences (including animal breeding, veterinary sciences, animal husbandry, animal welfare, aquaculture, fisheries, insect gene drive) |
| Department: |
Departments > Dipartimento di Biologia (DiBio) |
| Depositing User: |
Research Data Unipd
|
| Date Deposited: |
17 Oct 2023 15:38 |
| Last Modified: |
17 Oct 2023 15:40 |
| Creators/Authors: |
|
| Type of data: |
Text |
| Research funder: |
Università degli Studi di Padova |
| Grant number: |
DOR 2020 |
| Collection period: |
|
| Resource language: |
en |
| Metadata language: |
en |
| Publisher: |
Dryad |
| Status: |
Published |
| Related publications: |
|
| Date: |
8 July 2021 |
| Date type: |
Publication |
| Copyright holders: |
The Authors |
| URI: |
https://researchdata.cab.unipd.it/id/eprint/1028 |
| Creators/Authors: |
|
| Type of data: |
Text |
| Research funder: |
Università degli Studi di Padova |
| Grant number: |
DOR 2020 |
| Collection period: |
|
| Resource language: |
en |
| Metadata language: |
en |
| Publisher: |
Dryad |
| Status: |
Published |
| Related publications: |
|
| Date: |
8 July 2021 |
| Date type: |
Publication |
| Copyright holders: |
The Authors |
| Last Modified: |
17 Oct 2023 15:40 |
|
orcid.org/0000-0002-3530-2565
