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512 (0,101s) •

Project

Conspecific brood parasitism in an altricial passerine physiological conditions, behavioural adaptations and fitness consequences (GJ20-06110Y)

description of a conspecific brood parasite system and will contribute more generallyThe most famous examples of avian brood parasites are obligate, laying only in the nests of other species. Much less is...

Ornithology

  • 2020 - 2023
    • •
  • 9 793 tis. Kč
    • •
  • 9 793 tis. Kč
    • •
  • GA ČR
Project

Evolutionary determinats of brood parasitism in ducks (IAA6093403)

The research will be focused on the environmental determinants of conspecific and inter-specific brood parasitism at a population level, relative reproductive success of an alternative reproductive tactics at individual lev...

EG - Zoologie

  • 2004 - 2008
    • •
  • 5 640 tis. Kč
    • •
  • 3 070 tis. Kč
    • •
  • AV ČR
Project

Brood parasitism as an alternative reproductive strategy of ducks genetically - endocrinological approach (KJB600930611)

in facultative brood parasites. Parasitic mothers do not directly interact on both inter- and intraspecific parasitism. Secondly, we will analyze of testosterone in plasma from freshly hatched chicks also with res...

EG - Zoologie

  • 2006 - 2009
    • •
  • 1 215 tis. Kč
    • •
  • 1 215 tis. Kč
    • •
  • AV ČR
Project

Coevolutionary struggle between a highly virulent brood parasite and its major host (GA22-26812S)

is avian brood parasitism where parasites evade costly parental care by laying (Acrocephalus arundinaceus) and its brood parasite, the Common Cuckoo (Cuculus canorus). We of the host nest before the p...

Ornithology

  • 2022 - 2024
    • •
  • 7 350 tis. Kč
    • •
  • 7 350 tis. Kč
    • •
  • GA ČR
Project

A novel system to understand brood parasitism the cuckoo catfish parasitizing African cichlids (GA18-00682S)

Brood parasitism has evolved multiple times in birds and social insect hosts, taking parasite-centred and host-centred perspectives. Using natural and artificial parasitism of host broods, we will describe...

Zoology

  • 2018 - 2023
    • •
  • 6 612 tis. Kč
    • •
  • 6 072 tis. Kč
    • •
  • GA ČR
Project

Reproductive strategies of an obligate brood parasite host selection, offspring sex allocation and individual success (GA17-12262S)

Avian brood parasitism represents an ideal system to study co-evolution because struggle between the parasites and their hosts. Although this fascinating phenomenon on the side of the parasite and the host. In this...

EG - Zoologie

  • 2017 - 2021
    • •
  • 8 185 tis. Kč
    • •
  • 8 185 tis. Kč
    • •
  • GA ČR
Project

Egg and hatching adaptations to brood parasite by a specialist, the Cuckoo (C.canorus), and the generalist, the Brown h. cowbird (M.ater) (IAA6087801)

In this study we intend to examine and compare aggshell and hatching adaptations exhibited by the two brood parasites, the North American generalist, the brown-headed cowbird and an Old World specialist, the Common cuckoo. The first...

EG - Zoologie

  • 1998 - 2000
    • •
  • 906 tis. Kč
    • •
  • 530 tis. Kč
    • •
  • AV ČR
Project

Coevolution between Common Cuckoo Cuculus canorus and its hosts adaptations of the Cuckoo chick (IAA6093203)

In this project we intend to examine some prenatal and postnatal adaptations of the brood parasite the Common Cuckoo (Cuculus canorus) facilitating succesfull hatching and development. It has been generally accepted that the hatchin...

EG - Zoologie

  • 2002 - 2004
    • •
  • 2 754 tis. Kč
    • •
  • 1 117 tis. Kč
    • •
  • AV ČR
Project

Cues, recognition and responses in a coevolutionary arms race between brood parasites and their hosts (IAA600930903)

against brood parasitism. Till today, no similar complex study has ever been conducted.The research will focus on various aspects of coevolution between a brood parasite, the common cuckoo (Cuculus canorus) and it...

EG - Zoologie

  • 2009 - 2013
    • •
  • 3 793 tis. Kč
    • •
  • 3 793 tis. Kč
    • •
  • AV ČR
Project

Evolution of antiparasitic strategies of selected hosts towards avian brood parasitism (IAA600930605)

parasitic eggs in selected host. Our goal is to understand how the egg characteristics of host and parasite eggs influence this behavior and to examine why hosts sometimes accept the costs of parasitism. We will determine ...

EG - Zoologie

  • 2006 - 2010
    • •
  • 1 401 tis. Kč
    • •
  • 1 401 tis. Kč
    • •
  • AV ČR
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