Differentiation in morphology and electrical signalling in four species of para- and sympatric Marcusenius (Teleostei: Mormyridae) from Côte d’Ivoire, West Africa
Differentiation in morphology and electrical signalling in four species of para- and sympatric Marcusenius (Teleostei: Mormyridae) from Côte d’Ivoire, West Africa
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西非科特迪瓦四种旁域和同域 Marcusenius(Teleostei:Mormyridae)形态和电信号的分化
DOI:
10.1080/10236244.2013.796161
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发表时间:
2013
影响因子:
1
通讯作者:
Kramer
中科院分区:
文献类型:
--
作者:
Kramer
MarcuseniusGill, 1862 species were sampled from the Bandama River and the Comoé River in Côte d’Ivoire, West Africa.Marcusenius gracilissp. nov. was differentiated fromM. senegalensis(Steindachner, 1870),Marcusenius ussheri(Günther, 1867) andM. furcidens(Pellegrin, 1920) in electric organ discharges (EOD), and morphologically from all other West African congeners. Principal component analysis showed significant morphological differentiation among the four Ivorian species. Principal component 1 was loaded most strongly by characters affecting swimming power and manoeuvrability. The morphologically most similar pair,M. furcidensandM. gracilissp. nov., are distinguished by their EOD waveforms and a sexual dimorphism in the anal fin base in the latter not present in the former.M. ussheriis distinguished by a sexual dimorphism in its EOD waveform not observed in the other three species. This system is an opportunity to study how far the fine-tuning of character displacement among syntopic species can go.
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影响因子:
--
作者:
G. Boulenger
通讯作者:
G. Boulenger
影响因子:
1.4
作者:
Kramer, B.
通讯作者:
Kramer, B.
影响因子:
1.7
作者:
Christian Graff;B. Kramer
通讯作者:
B. Kramer
影响因子:
2.3
作者:
BRATTON, BO;KRAMER, B
通讯作者:
KRAMER, B
影响因子:
1.3
作者:
Michael Lamml;B. Kramer
通讯作者:
B. Kramer