caa a22 4500 606227482 CHVBK 20210128101158.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10641-014-0322-z doi (NATIONALLICENCE)springer-10.1007/s10641-014-0322-z van Breukelen Natalie Department of Science and Mathematics, Mount Aloysius College, 7373 Admiral Peary Highway, 16630, Cresson, PA, USA aut Interactions between native and non-native cichlid species in a Costa Rican river [Elektronische Daten] [Natalie van Breukelen] The convict cichlid, Amatitlania siquia, is a serially monogamous, bi-parental cichlid species native to Costa Rican rivers. Numerous field studies conducted in the Rio Cabuyo (Lomas Barbudal, Costa Rica) have provided a wealth of information regarding the behavioral ecology of this species. Recently a cichlid species that was previously not found in the Rio Cabuyo was identified as Hypsophrys nematopus. This influx of this non-native species provides an interesting ability to study the interactions of this potentially invasive species and to monitor the changes made by the native cichlid species. Over the course of several field seasons, I investigated the interactions between the native convict cichlid and the non-native cichlid. I surveyed the distribution of breeding pairs of both species and conducted behavioral tests to examine the interactions between the native and non-native species. I found an overall decline breeding pairs of both species over the course of the study. I found that both species were more aggressive to conspecific intruders and that female convict cichlids were aggressive to juveniles but males were not. These results provide important information concerning how native species interact with non-native species. It appears that the A. siquia population may experience a change in its reproductive behaviors due to the influx of H. nematopus. Springer Science+Business Media Dordrecht, 2014 Amatitlania siquia nationallicence Convict cichlid nationallicence Invasive species nationallicence Biological invasions nationallicence Reproductive behavior nationallicence Environmental Biology of Fishes Springer Netherlands 98/3(2015-03-01), 885-889 0378-1909 98:3<885 2015 98 10641 https://doi.org/10.1007/s10641-014-0322-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0322-z text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- van Breukelen Natalie Department of Science and Mathematics, Mount Aloysius College, 7373 Admiral Peary Highway, 16630, Cresson, PA, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/3(2015-03-01), 885-889 0378-1909 98:3<885 2015 98 10641