Environmental predictors for annual fish assemblages in subtropical grasslands of South America: the role of landscape and habitat characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F18%3A00489249" target="_blank" >RIV/68081766:_____/18:00489249 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10641-018-0751-1" target="_blank" >http://dx.doi.org/10.1007/s10641-018-0751-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10641-018-0751-1" target="_blank" >10.1007/s10641-018-0751-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Environmental predictors for annual fish assemblages in subtropical grasslands of South America: the role of landscape and habitat characteristics

Popis výsledku v původním jazyce

Annual fishes (AF) are ecologically unique assemblage with major conservation concern. Several AF species are found in temporary waters of South American subtropical grasslands, an ecoregion largely neglected by conservation policies. We applied a broad-scale approach to understand distribution pattern of the AF and tested the effects of environmental predictors on occurrence, abundance and assemblage structure of this diverse Neotropical group of threatened endemic aquatic fauna. We recorded 23 AF species. AF assemblage was strongly spatially structured and many individual species formed discrete units. AF presence was negatively associated with altitude at the landscape scale, and negatively associated with maximum pool depth and presence of predatory fish at the local scale. We found negative association between AF abundance and water depth. Assemblage composition was spatially structured, differed among hydrographic regions and was influenced by altitude, temperature and monthly precipitation. AF inhabits highly vulnerable habitats currently located in livestock and agricultural landscapes. Habitat maintenance through wildlife-friendly practices should be considered as an alternative to promote AF conservation.

Název v anglickém jazyce

Environmental predictors for annual fish assemblages in subtropical grasslands of South America: the role of landscape and habitat characteristics

Popis výsledku anglicky

Annual fishes (AF) are ecologically unique assemblage with major conservation concern. Several AF species are found in temporary waters of South American subtropical grasslands, an ecoregion largely neglected by conservation policies. We applied a broad-scale approach to understand distribution pattern of the AF and tested the effects of environmental predictors on occurrence, abundance and assemblage structure of this diverse Neotropical group of threatened endemic aquatic fauna. We recorded 23 AF species. AF assemblage was strongly spatially structured and many individual species formed discrete units. AF presence was negatively associated with altitude at the landscape scale, and negatively associated with maximum pool depth and presence of predatory fish at the local scale. We found negative association between AF abundance and water depth. Assemblage composition was spatially structured, differed among hydrographic regions and was influenced by altitude, temperature and monthly precipitation. AF inhabits highly vulnerable habitats currently located in livestock and agricultural landscapes. Habitat maintenance through wildlife-friendly practices should be considered as an alternative to promote AF conservation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Biology of Fishes

ISSN

0378-1909

e-ISSN

—

Svazek periodika

101

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

963-977

Kód UT WoS článku

000432321600008

EID výsledku v databázi Scopus

2-s2.0-85045056076