Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil
The various aspects of reproduction and population dynamics of Didelphis aurita were studied through capture-recapture on Santa Catarina Island, in southern Brazil. Surveys were carried out from April 1996 to March 1997. The study area was located near the stream of a swamp in a disturbed Atlantic F...
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Universidade Federal de Santa Catarina
2006-03-01
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Online Access: | http://www.biotemas.ufsc.br/volumes/pdf/volume191/p65a73.pdf |
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doaj-08271c02cf7e4b138113aaca0e056e9a2020-11-24T23:36:36ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432006-03-011916573Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern BrazilManoel dos Santos FilhoMaurício Eduardo GraipelThe various aspects of reproduction and population dynamics of Didelphis aurita were studied through capture-recapture on Santa Catarina Island, in southern Brazil. Surveys were carried out from April 1996 to March 1997. The study area was located near the stream of a swamp in a disturbed Atlantic Forest area. On 880 trap-nights, 31 opossums were captured on 108 occasions during one year. The results of this paper indicate a seasonal polyestrous reproduction pattern. Autumn-winter population levels grew on account of juvenile recruitment. The sex ratio favored females in first captures and total captures. Emigration was discussed as being the main reason for the female bias. The effects of sampling procedures over deviation in the pouch young sex ratio of resident females were also discussed. http://www.biotemas.ufsc.br/volumes/pdf/volume191/p65a73.pdfOpossumsreproductionrecruitmentsex ratioSanta Catarina Island |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Manoel dos Santos Filho Maurício Eduardo Graipel |
spellingShingle |
Manoel dos Santos Filho Maurício Eduardo Graipel Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil Biotemas Opossums reproduction recruitment sex ratio Santa Catarina Island |
author_facet |
Manoel dos Santos Filho Maurício Eduardo Graipel |
author_sort |
Manoel dos Santos Filho |
title |
Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil |
title_short |
Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil |
title_full |
Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil |
title_fullStr |
Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil |
title_full_unstemmed |
Reproduction and population dynamics of Didelphis aurita Wied-Neuwied (Mammalia: Didelphimorphia) in the periurban environment of Santa Catarina Island, in southern Brazil |
title_sort |
reproduction and population dynamics of didelphis aurita wied-neuwied (mammalia: didelphimorphia) in the periurban environment of santa catarina island, in southern brazil |
publisher |
Universidade Federal de Santa Catarina |
series |
Biotemas |
issn |
0103-1643 |
publishDate |
2006-03-01 |
description |
The various aspects of reproduction and population dynamics of Didelphis aurita were studied through capture-recapture on Santa Catarina Island, in southern Brazil. Surveys were carried out from April 1996 to March 1997. The study area was located near the stream of a swamp in a disturbed Atlantic Forest area. On 880 trap-nights, 31 opossums were captured on 108 occasions during one year. The results of this paper indicate a seasonal polyestrous reproduction pattern. Autumn-winter population levels grew on account of juvenile recruitment. The sex ratio favored females in first captures and total captures. Emigration was discussed as being the main reason for the female bias. The effects of sampling procedures over deviation in the pouch young sex ratio of resident females were also discussed. |
topic |
Opossums reproduction recruitment sex ratio Santa Catarina Island |
url |
http://www.biotemas.ufsc.br/volumes/pdf/volume191/p65a73.pdf |
work_keys_str_mv |
AT manoeldossantosfilho reproductionandpopulationdynamicsofdidelphisauritawiedneuwiedmammaliadidelphimorphiaintheperiurbanenvironmentofsantacatarinaislandinsouthernbrazil AT mauricioeduardograipel reproductionandpopulationdynamicsofdidelphisauritawiedneuwiedmammaliadidelphimorphiaintheperiurbanenvironmentofsantacatarinaislandinsouthernbrazil |
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1725522592995999744 |