Is coat-colour polymorphism in Eurasian red squirrels (Sciurus vulgaris L.) adaptive?

Mammalia

Volumn 68, Issue 1, 2004, Pages 37-48

  Wauters, Luc A ^a   Zaninetti, Massimiliano ^a   Tosi, Guido ^a   Bertolino, Sandro ^b  

^a UNIVERSITY OF INSUBRIA   (Italy)

^b UNIVERSITY OF TURIN   (Italy)

Author keywords

Coat colour morphs; Eurasian red squirrel; Forest composition; Italy; Sciurus vulgaris

Indexed keywords

ADAPTATION; COLOR; FOREST DYNAMICS; POLYMORPHISM;

EURASIA; EUROPE; ITALY; SOUTHERN EUROPE;

ABIES; CONIFEROPHYTA; PICEA; SCIURIDAE; SCIURUS; SCIURUS VULGARIS; TAMIASCIURUS;

EID: 3843085958     PISSN: 00251461     EISSN: None     Source Type: Journal    
DOI: 10.1515/mamm.2004.005     Document Type: Article

References (37)

1. CAGNIN M., ALOISE G., FIORE F., ORIOLO V. & WAUTERS L. A. 2000. - Habitat use and population density of the red squirrel, Sciurus vulgaris meridionalis, in the Sila Grande mountain range (Calabria, South Italy). Ital. J. Zool. 67: 81-8 7.
2. CORBET G. B. 1978. - The Mammals of the Palaearctic Region: a Taxonomic Review. British Natural History Museum and Cornell University Press, London and Ithaca.
3. DUCHARME M.B., LAROCHELLE J. & RICHARD D. 1989. - Thermogenic capacity in gray and black morphs of the gray squirrel, Sciurus carolinensis. Physiological Zool. 62: 1273-1292.
4. ENDLER J. A. 1978. - A predator's view of animal color patterns. Evol. Biol. 11: 319-364.
5. ENDLER J. A. 1986. - Natural selection in the wild. Princeton University Press, Princeton, New Jersey.
6. INNES S. & LAVIGNE D. M. 1979. - Comparative energetics of coat colour polymorphs in the eastern grey squirrel, Sciurus carolinensis. Can. J. Zool. 57: 585-592.
7. KENWARD R. E. & HODDER K. H. 1998. - Red squirrels (Sciurus vulgaris) released in conifer woodland: the effects of source habitat, predation and interactions with grey squirrels (Sciurus carolinensis). J. Zool., Lond. 244: 23-32.
8. KENWARD R. E., MARCSTRÖM V. & KARLBOM M. 1981. - Goshawk winter ecology in Swedisch pheasant habitats. J. Wildl. Manage. 45: 397-408.
9. KILTIE R. A. 1989. - Wildfire and the evolution of dorsal melanism in fox squirrels Sciurus niger. J. Mamm. 70: 726-739.
10. KILTIE R. A. 1992a. - Camouflage comparisons among fox squirrels from the Mississippi river delta. J. Mamm. 73: 906-913.
11. KILTIE R. A. 1992b. - Tests of hypotheses on predation as a main factor maintaining polymorphic melanism in coastal-plain fox squirrels (Sciurus niger L.). Biol. J. Linn. Soc. 45: 17-37.
12. LURZ P. W. W. & LLOYD A. J. 2000. - Body weights in grey and red squirrels: do seasonal weight increases occur in conifer woodland? J. Zool., Lond. 252: 539-543.
13. LOWE V. P. W. & GARDINER A. S. 1983. - Is the British squirrel (Sciurus vulgaris leucourus Kerr) British? Mammal Rev. 13: 57-67.
14. MAŇOSA S. 1994. - Goshawk diet in a Mediterranean area of north-eastern Spain. J. Raptor Res. 28, 84-92.
15. MARKOV G. 1961. - Zur Variabilität der Färbung des Eichhörnchens in Bulgarien. Z. Säugetierk. 26: 59-60.
16. PETTY S.J., LURZ P.W.W. & RUSHTON S.P. 2003. - Predation of red squirrels by northern goshawks in a conifer forest in northern England: can this limit squirrel numbers and create a conservation dilemma? Biol. Conserv. 111: 105-114.
17. RAIMONDI B. 2003. - Modellizzazione della distribuzione potenziale di specie e vegetazioni delle Alpi italiane ai fini della valutazione dei possibili impatti dei cambiamenti climatici. Ph.D. thesis, University of Insubria, Varese, Italy.
18. REISIGL H. & KELLER R. 1990. - Fiori e ambienti delle Alpi. Arti Grafiche Saturnia, Trento.
19. SIDOROWICZ J. 1971. - Problems of subspecific taxonomy of squirrels (Sciurus vulgaris L.) in Palaearctic. Zool. Anz. 187: 123-142.
20. SMITH C. C. 1981. - The indivisible niche of Tamiasciurus: an example of non-partitioning of resources. Ecol. Monogr. 51: 342-363.
21. rd ed. Freeman, New York.
22. VOIPIO P. 1969. - Some ecological aspects of polymorphism in the red squirrel Sciurus vulgaris L. in northern Europe. Oikos 20: 101-109.
23. VOIPIO P. 1970. - Polymorphism and regional differentiation in the red squirrel (Sciurus vulgaris L.). Ann. Zool. Fennici 7: 210-215.
24. VOIPIO P. & HISSA R. 1970. - Correlation with fur density of color polymorphism in Sciurus vulgaris. J. Mamm. 51: 185-187.
25. TORNBERG R. 1997. - Prey selection of the goshawk Accipiter gentilis during the breedingseason: The role of prey profitability and vulnerability. Ornis Fennica 74: 5-28.
26. WAUTERS L. A. & DHONDT A. A. 1989a. - Body weight, longevity and reproductive success in red squirrels (Sciurus vulgaris). J. Anim. Ecol. 58: 637-651.
27. WALTERS L. A. & DHONDT A. A. 1989b. - Variation in length and body weight of the red squirrel (Sciurus vulgaris) in two different habitats. J. Zool., Lond. 217: 93-106.
28. WAUTERS L. A. & DHONDT A. A. 1993. - Immigration patterns and success in red squirrels. Behav. Ecol. Sociobiol. 33: 159-167.
29. WAUTERS L. A. & DHONDT A. A. 1995. - Lifetime reproductive success and its correlates in female Eurasian red squirrels. Oikos 72: 402-410.
30. WAUTERS L. A. & LENS L. 1995. - Effects of food availability and density on red squirrel (Sciurus vulgaris) reproduction. Ecology 76: 2460-2469.
31. WAUTERS L. A., BIJNENS L. & DHONDT A. A. 1993. - Body mass at weaning and juvenile recruitment in the red squirrel. J. Anim. Ecol. 62: 280-286.
32. WAUTERS L. A., DHONDT A. A. & DE VOS R. 1990. - Fators affecting male mating success in red squirrels Sciurus vulgaris. Ethology, Ecology and Evolution 2: 195-204.
33. WAUTERS L. A., GURNELL J., MARTINOLI A. & TOSI G. 2001a. - Does interspecific competition with introduced grey squirrels affect foraging and food choice of Eurasian red squirrels? Anim. Behav. 61: 1079-1091.
34. WAUTERS L. A., GURNELL J., PREATONI D. & TOSI G. 2001b. - Effects of spatial variation in food availability on spacing behaviour and demography of Eurasian red squirrels. Ecography 24: 525-538.
35. WIDÉN P. 1987. - Goshawk predation during winter, spring and summer in a boreal forest area of central Sweden. Holarctic Ecol. 10: 104-109.
36. WILTAFKS H. 1973. - Die geographische Variation morphologischer Merkmale bei Sciurus vulgaris L., 1758. Ph.D. thesis, University of Köln.
37. WILTAFKSY H. 1977. - Regionale Unterschiede in der Schwanzfärbung von Sciurus vulgaris L., 1758. Z. Säugetierk 42: 133-144.