Effects of the presence of annual killifish on the assemblage structure of resting stages of aquatic invertebrates in temporary ponds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F20%3A00521872" target="_blank" >RIV/68081766:_____/20:00521872 - isvavai.cz</a>

Výsledek na webu

<a href="http://limnetica.net/documentos/limnetica/limnetica-39-1-p-1.pdf" target="_blank" >http://limnetica.net/documentos/limnetica/limnetica-39-1-p-1.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23818/limn.39.01" target="_blank" >10.23818/limn.39.01</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of the presence of annual killifish on the assemblage structure of resting stages of aquatic invertebrates in temporary ponds

Popis výsledku v původním jazyce

Predation pressure from vertebrates can affect the production of aquatic invertebrate resting stages in ponds, but the effects of seasonal predation on the assemblages of their hatchlings remains poorly understood. This study assessed the effects of the presence and density of annual killifish predators on the structure of assemblages of aquatic invertebrate hatchlings, as well as on the density and size of cladoceran eggs in southern Brazil temporary ponds. Dry sediment samples were collected from ponds that differed according to the presence and density of annual fishes, being four ponds without annual fish and four with annual fish at various densities. We detected no difference in density and size of cladoceran eggs between ponds with and without annual fish. Model selection procedures showed that the hatchling assemblage structure (richness, abundance and composition) did not change in relation with fish presence. Nonetheless, richness and abundance of hatchlings was lower in ponds with higher densities of annual fish. Our results suggest a limited effect of annual fish predators on the assemblage structure of resting stages of aquatic invertebrates, which can be related to dietary, ontogenetic and stochastic contingencies associated with populations of annual fish. In particular, the effect of annual fish on aquatic invertebrate hatchlings seemed to be more related with predator density.

Název v anglickém jazyce

Effects of the presence of annual killifish on the assemblage structure of resting stages of aquatic invertebrates in temporary ponds

Popis výsledku anglicky

Predation pressure from vertebrates can affect the production of aquatic invertebrate resting stages in ponds, but the effects of seasonal predation on the assemblages of their hatchlings remains poorly understood. This study assessed the effects of the presence and density of annual killifish predators on the structure of assemblages of aquatic invertebrate hatchlings, as well as on the density and size of cladoceran eggs in southern Brazil temporary ponds. Dry sediment samples were collected from ponds that differed according to the presence and density of annual fishes, being four ponds without annual fish and four with annual fish at various densities. We detected no difference in density and size of cladoceran eggs between ponds with and without annual fish. Model selection procedures showed that the hatchling assemblage structure (richness, abundance and composition) did not change in relation with fish presence. Nonetheless, richness and abundance of hatchlings was lower in ponds with higher densities of annual fish. Our results suggest a limited effect of annual fish predators on the assemblage structure of resting stages of aquatic invertebrates, which can be related to dietary, ontogenetic and stochastic contingencies associated with populations of annual fish. In particular, the effect of annual fish on aquatic invertebrate hatchlings seemed to be more related with predator density.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

<a href="/cs/project/GBP505%2F12%2FG112" target="_blank" >GBP505/12/G112: ECIP - Evropské centrum ichtyoparazitologie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Limnetica

ISSN

0213-8409

e-ISSN

—

Svazek periodika

39

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

ES - Španělské království

Počet stran výsledku

16

Strana od-do

1-16

Kód UT WoS článku

000509685900002

EID výsledku v databázi Scopus

2-s2.0-85078933989