geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effects of nest substrate on egg deposition and incubation conditions in a natural population of fathead minnows Pimephales promelas


, : Effects of nest substrate on egg deposition and incubation conditions in a natural population of fathead minnows Pimephales promelas. Canadian Journal of Zoology 87.5

Fathead minnows (Pimephales promelas Rafinesque, 1820) occur commonly in small lakes across the prairie region of North America. Males establish nests, court females, and tend the eggs. In our study population in Minnesota, males choose between two distinct nest substrates that differ in exposure to abiotic conditions affecting egg development: the underside of pond-lily (genus Nuphar Sm.) pads or the underside of submerged sticks. We found that lily pad nests contained more eggs, more clutches of different ages, and eggs distributed over a larger area than nests under submerged sticks. The difference in egg incubation temperatures between lily pad nests and stick nests varied diurnally with air-water temperature gradients. Proximity to the surface allowed lily pad nests to be significantly warmer during the day but only slightly cooler at night than nests under submerged sticks, resulting in about 10 h shorter time to hatch. The availability of lily pads for nests may greatly alter selection on sexual behaviour by males in competing for limiting nest sites of high quality, and female opportunity to exercise choice of mate. Moreover, availability of lily pads changes the role of abiotic conditions. In warm weather, males that nest under lily pads may achieve greater reproductive success than males that nest under sticks.

US$19.90

DOI: 10.1139/z09-022


Other references

P.D.R.y; W.S.ykatz-Kloss, 2007: REE geochemistry of the recent playa sediments from the Thar Desert, India: An implication to playa sediment provenance. Chemie der Erde - Geochemistry 67(1): 0-68

Crouzet, J.; Naudin, L.; Yeh, P.; Orsini, C.; Vigne, E., 2001: Method for preparing a recombinant adenovirus genome. A novel method for preparing recombinant adenoviruses and the use of such adenoviruses in gene therapy are disclosed. Plasmids used in the construction of said adenoviruses are also disclosed.

Cho, K.Jae.; Joo, Y.Hoon.; Sun, D.Il.; Kim, M.Sik., 2011: Perioperative clinical factors affecting volume changes of reconstructed flaps in head and neck cancer patients: free versus regional flaps. Postoperative volume changes in reconstructed flaps are known to influence the functional restoration of resected areas of the upper aerodigestive tract. The purposes of this study were to estimate the volume decreases in flaps and investigate cli...

Anonymous, 2004: Organ Microcirculation: A Gateway to Diagnostic and Therapeutic Interventions. Abstracts of the 14th Keio University International Symposium for Life Sciences and Medicine. December 11-13, 2003, Tokyo, Japan. Keio Journal of Medicine 52 Suppl 2: 14-59

Cadierno, V.; Zablocka, M.; Donnadieu, B.; Igau, A.; Majoral, J.P.; Skowronska, A., 2002: Unexpected formal [1+3] cycloadditions between azides and alpha-zirconated phosphanes: a route to unprecedented phosphazide and iminophosphorane complexes. Polycyclic zwitterionic complexes that incorporate one or two phosphonium unit(s) as cationic center(s) and zirconocene-ate moiety(ies) as the anionic counterpart(s) can be easily prepared by either [1+3] or [1+3] and [2+3] cycloadditions which in...

Macura, J.; Vancura, V., 1965: Plant microbes relationships. Proceedings of a symposium on relationships between soil microorganisms and plant roots, Prague 1963. Contains 44 papers (two of which are separately noticed) on aspects of root excretions and colonization of plant roots by micro-organisms; effect of plants on rhizosphere microflora; effect of rhizosphere microflora on plants; symbiotic and parasi...

Waller, B., F.; Clary, J., D.; Rohr, T., 1997: Non-neoplastic disease of aorta and pulmonary trunk: Part I. This five-part review focuses on selected nonneoplastic diseases of the aorta and pulmonary trunk. Because many more diseases affect the aorta compared with the pulmonary trunk and right and left main pulmonary arteries, most of this review will b...

Burns, D.L.; Schachman, H.K., 1982: Ligand-promoted strengthening of interchain bonding domains in catalytic subunits of aspartate transcarbamoylase. Journal of Biological Chemistry 257(20): 12214-8

Talha S.; Harel L., 1986: Early stimulation of atp turnover by egf plus insulin relation to different early events. Biology of the Cell (Paris) 57(2): 4A

Pan, P.; Feng, X.; Hudson, J.A., 2009: Study of failure and scale effects in rocks under uniaxial compression using 3D cellular automata. A numerical model for simulating the rock fracturing process has been developed and implemented in the three-dimensional code EPCA(3D) , which is based on the earlier EPCA(2D) (elasto-plastic cellular automaton). EPCA(3D) has the ability to simula...