Hábitos tróficos de dos especies sintópicas de carácidos en una quebrada de alta montaña en los Andes colombianos

Cristian Román-Palacios; César Román-Valencia

doi:10.1016/j.rmb.2015.06.009

Hábitos tróficos de dos especies sintópicas de carácidos en una quebrada de alta montaña en los Andes colombianos

Translated title of the contribution: Trophic habits of two syntopic species of characids in a high mountain creek in the Colombian Andes

Cristian Román-Palacios
, César Román-Valencia

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

To analyze the degree of trophic overlap, 2 species of Neotropical characins were considered: Hemibrycon brevispini and Bryconamericus caucanus. Both species have been identified as having an insectivorous diet with a tendency to consume mayflies, hymenopterans, and dipterans. It was found that these fish share 65% of food items, which is reflected in their high trophic overlap (QS = 0.620). There is also no difference between the abundances of prey consumed. The values of trophic breadth, diversity, evenness, and richness were higher in B. caucanus than in H. brevispini, which explains the ecological flexibility exhibited by B. caucanus throughout its wide range of geographical distribution compared to H. brevispini. In these taxa, syntopy is mainly due to the high abundance of resources available during the year.

Translated title of the contribution	Trophic habits of two syntopic species of characids in a high mountain creek in the Colombian Andes
Original language	Spanish
Pages (from-to)	782-788
Number of pages	7
Journal	Revista Mexicana de Biodiversidad
Volume	86
Issue number	3
DOIs	https://doi.org/10.1016/j.rmb.2015.06.009
State	Published - Sep 1 2015
Externally published	Yes

Keywords

Characiforms
Insectivorous fishes
Niche-overlap
Trophic ecology
Trophic segregation

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics

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10.1016/j.rmb.2015.06.009

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@article{3c62559995e946eb8a98056a0651d3a1,

title = "H{\'a}bitos tr{\'o}ficos de dos especies sint{\'o}picas de car{\'a}cidos en una quebrada de alta monta{\~n}a en los Andes colombianos",

abstract = "To analyze the degree of trophic overlap, 2 species of Neotropical characins were considered: Hemibrycon brevispini and Bryconamericus caucanus. Both species have been identified as having an insectivorous diet with a tendency to consume mayflies, hymenopterans, and dipterans. It was found that these fish share 65\% of food items, which is reflected in their high trophic overlap (QS = 0.620). There is also no difference between the abundances of prey consumed. The values of trophic breadth, diversity, evenness, and richness were higher in B. caucanus than in H. brevispini, which explains the ecological flexibility exhibited by B. caucanus throughout its wide range of geographical distribution compared to H. brevispini. In these taxa, syntopy is mainly due to the high abundance of resources available during the year.",

keywords = "Characiforms, Insectivorous fishes, Niche-overlap, Trophic ecology, Trophic segregation",

author = "Cristian Rom{\'a}n-Palacios and C{\'e}sar Rom{\'a}n-Valencia",

note = "Publisher Copyright: {\textcopyright} 2015 Universidad Nacional Autonoma de Mexico, Instituto de Biologia.",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.rmb.2015.06.009",

language = "Spanish",

volume = "86",

pages = "782--788",

journal = "Revista Mexicana de Biodiversidad",

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}

TY - JOUR

T1 - Hábitos tróficos de dos especies sintópicas de carácidos en una quebrada de alta montaña en los Andes colombianos

AU - Román-Palacios, Cristian

AU - Román-Valencia, César

PY - 2015/9/1

Y1 - 2015/9/1

N2 - To analyze the degree of trophic overlap, 2 species of Neotropical characins were considered: Hemibrycon brevispini and Bryconamericus caucanus. Both species have been identified as having an insectivorous diet with a tendency to consume mayflies, hymenopterans, and dipterans. It was found that these fish share 65% of food items, which is reflected in their high trophic overlap (QS = 0.620). There is also no difference between the abundances of prey consumed. The values of trophic breadth, diversity, evenness, and richness were higher in B. caucanus than in H. brevispini, which explains the ecological flexibility exhibited by B. caucanus throughout its wide range of geographical distribution compared to H. brevispini. In these taxa, syntopy is mainly due to the high abundance of resources available during the year.

AB - To analyze the degree of trophic overlap, 2 species of Neotropical characins were considered: Hemibrycon brevispini and Bryconamericus caucanus. Both species have been identified as having an insectivorous diet with a tendency to consume mayflies, hymenopterans, and dipterans. It was found that these fish share 65% of food items, which is reflected in their high trophic overlap (QS = 0.620). There is also no difference between the abundances of prey consumed. The values of trophic breadth, diversity, evenness, and richness were higher in B. caucanus than in H. brevispini, which explains the ecological flexibility exhibited by B. caucanus throughout its wide range of geographical distribution compared to H. brevispini. In these taxa, syntopy is mainly due to the high abundance of resources available during the year.

KW - Characiforms

KW - Insectivorous fishes

KW - Niche-overlap

KW - Trophic ecology

KW - Trophic segregation

UR - https://www.scopus.com/pages/publications/84942424011

UR - https://www.scopus.com/pages/publications/84942424011#tab=citedBy

U2 - 10.1016/j.rmb.2015.06.009

DO - 10.1016/j.rmb.2015.06.009

M3 - Article

AN - SCOPUS:84942424011

SN - 1870-3453

VL - 86

SP - 782

EP - 788

JO - Revista Mexicana de Biodiversidad

JF - Revista Mexicana de Biodiversidad

IS - 3

ER -

Hábitos tróficos de dos especies sintópicas de carácidos en una quebrada de alta montaña en los Andes colombianos

Abstract

Keywords

ASJC Scopus subject areas

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