The Sheath‐tailed bat, <i>Coleura seychellensis</i> (Chiroptera: Emballonuridae) in the Seychelles Islands

Nicoll, Martin E.; Suttie, J. M.

doi:10.1111/jzo.1982.197.3.421

Cited by 10 publications

(18 citation statements)

References 7 publications

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“…Similar to the results of Mc William (1987) and Nicoll and Suttie (1982), forearm measurements differed between sexes of seychellensis (BMNH 6.3.18.5) from the Seychelles.…”

Section: External Characteristicssupporting

confidence: 89%

“…The notable decline of C. seychellensis populations in the Seychelles has been possibly Coleura on Madagascar 291 attributed to predation by the Tyto alba, which was introduced to this island group in 1948 (Nicoll & Suttie, 1982). Other explanations proposed for the reduction of this species are human habitat modification associated with vegetational change, which in turn may have affected the abundance of insects this species feeds upon (Joubert, 2004), and the closing of day roost sites by invasive vegetation (Gerlach & Taylor, 2006).…”

Section: Discussionmentioning

confidence: 96%

“…Coleura seychellensis Peters, 1868, is reported from the Seychelles Islands, including Silhouette, Amirantes, Mahe, Praslin, Marianne and La Digue (Nicoll & Suttie, 1982;Racey & Nicoll, 1984;Hutson et al, 2001;Gerlach, 2004; Appendix 1; Fig. 1), as well as a doubtful record from the island of Zanzibar (Thomas, 1915;Koopman, 1993).…”

Section: Introductionmentioning

confidence: 93%

“…d Weight measurements taken from Nicoll and Suttie (1982 gamut of variation from being nearly absent (ZMB 3470.1) to well developed (MNHN 1985(MNHN -1053. Thus, this character cannot be confidently used to distinguish these two species as indicated by Dobson (1878).…”

Section: External Characteristicsmentioning

confidence: 99%

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First record ofColeura(Chiroptera: Emballonuridae) on Madagascar and identification and diagnosis of members of the genus

Ratrimomanarivo

2008

Systematics and Biodiversity

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First record of Coleura (Chiroptera: Emballonuridae) on Madagascar and identification and diagnosis of members of the genus Abstract The genus Coleura contains two species: C. seychellensis restricted to the Seychelles Archipelago and C. afra broadly distributed on the African continent and the Arabian Peninsula. We recently captured and collected specimens of Coleura from Madagascar, an island from which it was previously unknown. Using museum specimens and the new material from Madagascar, we review morphological variation in members of this genus and present characters for species identification. On the basis of these comparisons, specimens from Madagascar are referable to C. afra.We present information on the natural history of the recently discovered Malagasy population.

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“…Similar to the results of Mc William (1987) and Nicoll and Suttie (1982), forearm measurements differed between sexes of seychellensis (BMNH 6.3.18.5) from the Seychelles.…”

Section: External Characteristicssupporting

confidence: 89%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 93%

Section: External Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

First record ofColeura(Chiroptera: Emballonuridae) on Madagascar and identification and diagnosis of members of the genus

Ratrimomanarivo

2008

Systematics and Biodiversity

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“…Over the years, studies of bats have discussed sexual dimorphism in species where females are bigger than males (Ralls, 1976;Myers, 1978;Nicoll and Suttie, 1982;Gomes and Uieda, 2004;Rossiter et al, 2006). Among chiropterans, parental investment is large, because of the long time of gestation and lactation.…”

Section: Measurements N (♀)mentioning

confidence: 99%

Sexual size dimorphism in Myotis nigricans (Schinz, 1821) (Chiroptera: Vespertilionidae) from south Brazil

2008

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Among Vespertilionidae species, sexual size dimorphism is very well documented, in which females are larger than males. The differences are mainly in body weight, skull measurements and forearm length. Studies have discussed some hypothesis for this phenomenon. However, very little information is known about sexual size dimorphism in Myotis nigricans (Schinz, 1821) in Brazil. In this sense, the goal of this paper is to present a study of this phenomenon in the species. For this, we present a quantitative analysis of sexual size dimorphism assessed by traditional morphometrics. Ten skull measurements in addition to the forearm length of adult specimens were taken. Results of traditional morphometrics revealed sexual size dimorphism in five skull measurements and in the forearm length. Females were larger than males. These differences can be attributed to natural selection on large female size for increase fecundity. Bat females of the Vespertilionidae family are usually larger than males in order to perform parental care appropriately and to provide a successful reproductive process.Keywords: Chiroptera, Vespertilionidae, Myotis nigricans, sexual size dimorphism, morphometrics.Dimorfismo sexual no tamanho do crânio de Myotis nigricans (Schinz, 1821) (Chiroptera: Vespertilionidae) no sul do Brasil ResumoEntre as espécies de Vespertilionidae, o dimorfismo sexual, no qual as fêmeas são maiores que os machos, é bem documentado. As diferenças aparecem principalmente no peso do corpo, nas medidas cranianas e no comprimento do antebraço. Estudos têm discutido algumas hipóteses para este fenômeno. Contudo, poucas são as informações conhecidas sobre dimorfismo sexual de tamanho para a espécie Myotis nigricans (Schinz, 1821) no Brasil. O objetivo deste artigo é apresentar um estudo deste fenômeno na espécie. Para isso, apresentamos uma análise quantitativa do dimorfismo sexual através da morfometria tradicional, no qual 10 medidas cranianas e o comprimento do antebraço foram tomados. Resultados da morfometria tradicional revelaram dimorfismo sexual em cinco das dez medidas cranianas e no comprimento do antebraço. Em todas as medidas, as fêmeas foram maiores que os machos. As diferenças podem ser atribuídas à seleção natural, favorecendo tamanho maior para as fêmeas para aumentar a fecundidade. Fêmeas da família Vespertilionidae são geralmente maiores a fim de desempenhar adequadamente o cuidado parental e prover processo reprodutivo com sucesso.Palavras-chave: Chiroptera, Vespertilionidae, Myotis nigricans, dimorfismo sexual no tamanho, morfometria tradicional.

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Relationships among physical traits, age and social status in Thomson's and Grant's gazelles

Stelfox

Hudson

Groer

1985

Applied Animal Behaviour Science

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The Sheath‐tailed bat, Coleura seychellensis (Chiroptera: Emballonuridae) in the Seychelles Islands

Cited by 10 publications

References 7 publications

First record ofColeura(Chiroptera: Emballonuridae) on Madagascar and identification and diagnosis of members of the genus

First record ofColeura(Chiroptera: Emballonuridae) on Madagascar and identification and diagnosis of members of the genus

Sexual size dimorphism in Myotis nigricans (Schinz, 1821) (Chiroptera: Vespertilionidae) from south Brazil

Relationships among physical traits, age and social status in Thomson's and Grant's gazelles

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