Article: Importance of feeding strategies on the long-term success of fish invasions
Hydrobiologia. 2018 July, v. 817, no. 1
2018
Abstract: This study assessed the feeding strategies of nine fish species in their native (Cuiabá River) and in an invaded basin (upper Paraná River) to identify trophic variables that may explain the success of these species in the new basin, over 30 years. The ... ...
| Abstract | This study assessed the feeding strategies of nine fish species in their native (Cuiabá River) and in an invaded basin (upper Paraná River) to identify trophic variables that may explain the success of these species in the new basin, over 30 years. The following predictions were analyzed: (i) species that display omnivorous or piscivorous diets in the native basin are favored in the invasion process over the long term, and (ii) specialist feeders are favored in the invasion process provided that their food items are highly available in the invaded area. These predictions were supported by the data; the species that were successful invaders had high trophic plasticity (omnivores), consumed a wide variety of food items from specific trophic guilds (piscivores), or if a species had a specialized diet, the resources demanded are abundant (detritivores). Thus, in a long-term perspective, the food resources used by these species are rarely limiting in aquatic ecosystems, and these feeding characteristics should be one of the key factors determining the colonization success of fishes. Understanding the factors that determine the success of invasive species in new areas is critical for developing management policies aimed at minimizing the impacts of biological invasions. |
|---|---|
| Keywords | aquatic ecosystems ; basins ; detritivores ; diet ; ecological invasion ; feeding methods ; fish ; invasive species ; issues and policy ; omnivores ; piscivores ; plasticity ; prediction ; rivers |
| Language | English |
| Dates of publication | 2018-07 |
| Size | p. 239-252. |
| Publishing place | Springer International Publishing |
| Document type | Article |
| ZDB-ID | 214428-1 |
| ISSN | 1573-5117 ; 0018-8158 |
| ISSN (online) | 1573-5117 |
| ISSN | 0018-8158 |
| DOI | 10.1007/s10750-017-3404-z |
| Database | NAL-Catalogue (AGRICOLA) |
More links
Kategorien
In stock of ZB MED Bonn / Germany
| Z 73/704: Show issues | ||||
| Einzelsign.: Show issues | ||||
| 4' 96/5026: Show issues |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.
Inter-library loan at ZB MED
Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.