Repositorio
Institucional

Munoz-Ramrez, Carlos. P.

Oyanedel, Alejandra#Habit, Evelyn#Belk, Mark C.#Solis-Lufi, Katherin#Colin, Nicole#Gonzalez, Jorge#Jara, Alfonso

Movement patterns and home range in Diplomystes camposensis (Siluriformes: Diplomystidae), an endemic and threatened species from Chile

SOC BRASILEIRA ICTIOLOGIA

NEOTROPICAL ICHTHYOLOGY

en

We document movement patterns and home range of Diplomystes camposensis, an endemic and threatened freshwater catfish from Chile. We tracked the movements of seven individuals of different body size (13.5 to 19 cm SL) using portable radio telemetry equipment to investigate movement patterns in relation to day/night activity and habitat use in the San Pedro River (Valdivia Basin). Tracked movements and model-based analyses revealed that D. camposensis has a large home range and high mobility. The average home range was 0.068163 +/- 0.033313 km(2), and the average area of higher activity was 0.005646 +/- 0.011386 km(2). The mean linear home range was 387.4 m. The results also showed that movements were longer during the night, supporting nocturnal habits. Movements tended to be in an upstream direction for some individuals, although these differences were not significant when data was pooled. Large home range and movements suggest that the species may require large river areas to meet ecological demands, an aspect that could be severely affected by fragmentation. These results, along with previously published genetic data, suggest that the conservation of D. camposensis would be seriously threatened by hydromorphological alterations (e.g. lack of connectivity), such as those resulting from dam building.

Artículo original

We appreciate the participation of Nestor Ortiz and Beatriz Munoz in the field, and all those who selflessly provided valuable input for this research. This work was funded by Colbun S.A. and Environmental Sciences Center EULA-Chile, University of Concepcion.

Agradecemos la participación de Néstor Ortiz y Beatriz Muñoz en el campo, así como a todos aquellos que desinteresadamente aportaron valiosos aportes para esta investigación. Este trabajo fue financiado por Colbún S.A. y el Centro de Ciencias Ambientales EULA-Chile de la Universidad de Concepción.

10.1590/1982-0224-20170134

pdf

Endangered species# Fragmentation# Habitat use# Kernel# Radio telemetry

http://dx.doi.org/10.1590/1982-0224-20170134

Zoology

Especies en peligro de extinción# Fragmentación# Uso del hábitat# Núcleo# Radiotelemetría

Zoología, Ornitología, Entomología y Comportamiento Biológico

Conservación de la Biodiversidad

Ecología

WOS:000429221800001

Movement patterns and home range in <i>Diplomystes camposensis</i> (Siluriformes: Diplomystidae), an endemic and threatened species from Chile

Artículo original

version publicada

SOC BRASILEIRA ICTIOLOGIA

NEOTROPICAL ICHTHYOLOGY

Zoología

1679-6225

en

Universidad de Concepción

Colbun S.A.

UdeC Environmental Sciences Center EULA-Chile

We appreciate the participation of Nestor Ortiz and Beatriz Munoz in the field, and all those who selflessly provided valuable input for this research. This work was funded by Colbun S.A. and Environmental Sciences Center EULA-Chile, University of Concepcion.

pdf

dorada#verde

acceso abierto

acceso abierto

CC BY 4.0

1076

1088