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24 (0,103s) •

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 level (Conspecific

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)

This project is focused on females abilities to affect the phenotyp of their offspring and consequently their own reproductive success by non-genetic mechanisms in facultative brood parasites. Parasitic mothers do not directly interact of te...

EG - Zoologie

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

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

The most famous examples of avian brood parasites are obligate, laying only in the nests of other species. Much less is known about facultative conspecific brood parasites, where females have their own clutches but can also parasiti...

Ornithology

  • 2020 - 2023
    • •
  • 9 793 tis. Kč
    • •
  • 9 793 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 goal all...

EG - Zoologie

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

Ecology of selected waterfowl species in conditions of intensively managed fishponds (IAB6130001)

investisgation of diving duck (Pochard, Tufted Duck) broods will be included in the project. The data describing duck brood movements (home range size, frequency and length in relation to habitat parametres as well as to brood<...

EG - Zoologie

  • 2000 - 2002
    • •
  • 2 837 tis. Kč
    • •
  • 1 490 tis. Kč
    • •
  • AV 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 but is remarkably rare in other taxa. An exception is the cuckoo catfish that exploit cost to her brood through predation by early hatching cuckoo catfish offspr...

Zoology

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

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

One of the most well-established study systems of coevolution in vertebrates is avian brood parasitism where parasites evade costly parental care by laying their eggs into host nests. In this project, we will investigate defensive and counte...

Ornithology

  • 2022 - 2024
    • •
  • 7 350 tis. Kč
    • •
  • 7 350 tis. Kč
    • •
  • GA 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 hatching muscle ...

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)

The research will focus on various aspects of coevolution between a brood parasite, the common cuckoo (Cuculus canorus) and its important host, the great reed warbler (Acrocephalus arundinaceus). The major emphasis will be on exploring again...

EG - Zoologie

  • 2009 - 2013
    • •
  • 3 793 tis. Kč
    • •
  • 3 793 tis. Kč
    • •
  • AV 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 many adaptations and counter-adaptations have evolved during the co-evolutionary struggle between the parasites and their hosts. Although this fascinating phenom...

EG - Zoologie

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