Sharing of Potential Nest Sites by Etheostoma olmstedi Males Suggests Mutual Tolerance in an Alloparental Species

Stiver, Kelly A.; Wolff, Stephen H.; Alonzo, Suzanne H.
February 2013
PLoS ONE;Feb2013, Vol. 8 Issue 2, p1
Academic Journal
When reproductive competitors tolerate or cooperate with one another, they may gain particular benefits, such as collectively guarding resources or attracting mates. Shared resources may be those essential to reproduction, such as a breeding site or nest. Using the tessellated darter, a species where males but not females compete over potential nest sites, we examined site use and sharing under controlled conditions of differing competitor density. Sharing was observed even when competitor density was low and individuals could have each occupied a potential nest site without same-sex sharing. Males were more likely to share a nest site with one other when the difference in size between them was larger rather than smaller. There was no evidence that female sharing was dependent on their relative size. Fish were generally more likely to use and share larger sites, in accordance with the greater relative surface area they offered. We discuss how one or both sharing males may potentially benefit, and how male sharing of potential nest sites could relate to female mating preferences. Tessellated darter males are known to provide alloparental care for eggs but this occurs without any social contact between the alloparent and the genetic father of the young. Thus, the suggestion that they may also share sites and maintain social contact with reproductive competitors highlights the importance of increased focus on the potential complexity of reproductive systems.


Related Articles

  • Nest Site Selection by Diamond-Backed Terrapins (Malaclemys terrapin) on a Mid-Atlantic Barrier Island. MITCHEL, JOSEPH C.; WALLS, SUSAN C. // Chelonian Conservation & Biology;Dec2013, Vol. 12 Issue 2, p303 

    We scored 48 Malaclemys terrapin nests destroyed by raccoons on Fisherman Island, Virginia, for the presence or absence of tree canopy, shrub canopy, no canopy, bare sand, grass cover, and herbaceous cover. Significantly more nests than expected were found in the open with no vegetation cover...

  • Adoption and cuckoldry lead to alloparental care in the tessellated darter ( Etheostoma olmstedi), a non-group-living species with no evidence of nest site limitation. Stiver, Kelly; Wolff, Stephen; Alonzo, Suzanne // Behavioral Ecology & Sociobiology;Jun2012, Vol. 66 Issue 6, p855 

    While extensive empirical and theoretical work has focused on the evolution of costly cooperation (particularly in group-living species), less attention has been paid to more low-risk or immediately beneficial forms of cooperation. In some non-group-living darters, alloparental care (or...

  • Brood defense and filial cannibalism in the spottail darter ( Etheostoma squamiceps): the effects of parental status and prior experience. Bandoli, James // Behavioral Ecology & Sociobiology;Feb2002, Vol. 51 Issue 3, p222 

    Male spottail darters ( Etheostoma squamiceps) defend nest sites in which females deposit eggs over the course of several weeks. In laboratory experiments, I tested three predictions of the hypothesis that the presence of eggs increases the value of a nest site to male spottail darters: (1)...

  • Ethology: some observations on animal behaviour. Kumar, Arunachalam // ZOOs' Print;Sep2014, Vol. 29 Issue 9, p11 

    The article discusses the ethological observations on different animal behavior. It describes the breeding methods of a garden lizard wherein the animal secure its breeding site through its nose over a soil area for choosing its nesting site. It explores the behavior of a mice being trapped and...

  • Pup guarding by greater spear-nosed bats. Bohn, Kirsten M.; Moss, Cynthia F.; Wilkinson, Gerald S. // Behavioral Ecology & Sociobiology; 

    Alloparental care poses an evolutionary dilemma because effort is expended on non-filial offspring. Thus, instances of alloparental care have been attributed to either mistaken identity, (i.e., recognition errors) or active cooperation. In greater spear-nosed bats ( Phyllostomus hastatus),...

  • Colony nutrition skews reproduction in a social spider. Salomon, Mor; Mayntz, David; Lubin, Yael // Behavioral Ecology;May2008, Vol. 19 Issue 3, p605 

    Cooperative breeding societies are characterized by alloparental care and unequal distribution of reproduction (skewed reproduction). Competition for resources among group members may determine the reproductive outcome of each individual. In a spider colony, females feed together on prey and...

  • Effects of experience and avpr1a microsatellite length on parental care in male prairie voles ( Microtus ochrogaster). Kelley, Rebecca; Castelli, Frank; Mabry, Karen; Solomon, Nancy // Behavioral Ecology & Sociobiology;Jun2013, Vol. 67 Issue 6, p985 

    Pair-bonded males often make substantial contributions to the care of their offspring. Male parental behavior may be affected by a range of factors, including previous experience (parental or alloparental), genetic influences, and contributions by the female partner. Previous studies have shown...

  • Site fidelity of male Galápagos sea lions: a lifetime perspective. Meise, Kristine; Krüger, Oliver; Piedrahita, Paolo; Trillmich, Fritz // Behavioral Ecology & Sociobiology;Jun2013, Vol. 67 Issue 6, p1001 

    Knowledge about the distribution of resources can lead to the development of spatial preferences and long-term site fidelity. Individuals are expected to choose sites that best suit their needs. However, dominant individuals restrict movements of less competitive ones. Accordingly, one may...

  • Aggregation and dispersal based on social cues as a nest-site selection strategy in a resource-defence polygynandry mating system. Heap, Stephen; Byrne, Phillip // Behavioral Ecology & Sociobiology;Apr2013, Vol. 67 Issue 4, p685 

    Many animals must choose a nest site in order to reproduce. However, it is unclear how nest-site selection strategies vary across different mating systems. We must therefore explore nest-site selection strategies in a range of mating systems, including the interaction between resource-defence...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics