Sexually selected behaviour: red squirrel males search for reproductive success

The Journal of Animal Ecology
Jeffrey E LaneD W Coltman

Abstract

1. Differential male reproductive success is commonplace in mammals and frequently attributed to variation in morphological traits that provide individuals with a competitive advantage in female defence mating systems. Other mammalian mating systems, however, have received comparatively little attention and correlates of male reproductive success in them are less well understood. 2. We studied a free-ranging population of North American red squirrels (Tamiasciurus hudsonicus Erxleben) exhibiting year-round individual territoriality. Males must temporarily vacate their territories to locate spatially dispersed receptive females, thereby setting the stage for a scramble competition mating system. 3. We predicted that both male annual mating success (measured as the number of females copulated with) and annual reproductive success (measured as the number of offspring sired) would be positively correlated with both search ability (measured as the number of oestrous females located over the mating season) and effort (measured as mating season home range size), generating directional sexual selection on these two metrics. 4. Mating season home ranges of males showed, on average, an almost 10-fold increase relative to those measured d...Continue Reading

References

Jul 15, 1977·Science·S T Emlen, L W Oring
Jan 1, 1988·The British Veterinary Journal·R E Clutton
Jul 7, 1985·Journal of Theoretical Biology·J M Smith
Jan 1, 1974·Behaviour·J Altmann
Aug 1, 1994·Genetics·D W Sugg, R K Chesser
Jun 20, 1998·Molecular Ecology·T C MarshallJ M Pemberton
Jun 22, 2001·Proceedings. Biological Sciences·S BoutinD Berteaux
Aug 17, 2001·Proceedings. Biological Sciences·G SingletonP Brown
Jan 19, 2002·Proceedings. Biological Sciences·D W ColtmanC Strobeck
Oct 2, 2002·Evolution; International Journal of Organic Evolution·E B KruukTim Clutton-Brock
Nov 25, 2003·Evolution; International Journal of Organic Evolution·D RéaleS Boutin
Sep 15, 2005·Molecular Ecology·D H NusseyJ Pemberton
Dec 23, 2006·Science·Stan BoutinAndré A Dhondt
Jul 20, 2007·Biology Letters·Jordi Moya-LarañoCharles W Fox
Dec 1, 1948·Heredity·A J BATEMAN
Aug 19, 2008·The American Naturalist·J G KingsolverP Beerli
Jul 1, 1984·Evolution; International Journal of Organic Evolution·Stevan J Arnold, Michael J Wade
Jul 1, 1984·Evolution; International Journal of Organic Evolution·Stevan J Arnold, Michael J Wade
Nov 1, 1983·Evolution; International Journal of Organic Evolution·Russell Lande, Stevan J Arnold
Feb 1, 1998·Evolution; International Journal of Organic Evolution·Christopher G Murphy
Jan 1, 1989·Evolution; International Journal of Organic Evolution·William R Rice

❮ Previous
Next ❯

Citations

Jul 19, 2012·PloS One·J Scott KeoghMartin J Whiting
Jan 16, 2016·Human Nature : an Interdisciplinary Biosocial Perspective·Elizabeth Cashdan, Steven J C Gaulin
Jan 8, 2016·Proceedings of the National Academy of Sciences of the United States of America·Jonathan M HenshawKaroline Fritzsche
Aug 4, 2015·International Journal for Parasitology. Parasites and Wildlife·Jesse E H PattersonKathreen E Ruckstuhl
Mar 23, 2011·The Journal of Animal Ecology·Carsten Schradin, Anna K Lindholm
Aug 14, 2009·The Journal of Animal Ecology·Jeffrey E LaneMurray M Humphries
Apr 4, 2015·Proceedings. Biological Sciences·S Eryn McFarlaneAndrew G McAdam
Nov 4, 2016·Proceedings. Biological Sciences·Melissa J Merrick, John L Koprowski
Mar 19, 2020·Integrative and Comparative Biology·Matt Gaidica, Ben Dantzer
Apr 14, 2017·Ecology and Evolution·Vesa Selonen, Ralf Wistbacka
Dec 19, 2020·Current Biology : CB·Erin R SiracusaAndrew G McAdam
Jun 13, 2021·Movement Ecology·Frances E BudermanPatrick J Drohan
Sep 17, 2021·Science·Tim Clutton-Brock

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.