Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Alexandra Schrempf"'
Autor:
Mathilde Vidal, Florian Königseder, Julia Giehr, Alexandra Schrempf, Christophe Lucas, Jürgen Heinze
Publikováno v:
Communications Biology, Vol 4, Iss 1, Pp 1-8 (2021)
Vidal et al. identify a breeding system in the ant Cardiocondyla elegans that avoids colonial inbreeding, managed by a third party of worker ants. This system bears similarities to human matchmaking, but with fundamental genetic drivers rather than s
Externí odkaz:
https://doaj.org/article/67ffb8d7253248f693b089a2b6d712e8
Publikováno v:
BMC Evolutionary Biology, Vol 17, Iss 1, Pp 1-9 (2017)
Abstract Background The performance and fitness of social societies mainly depends on the efficiency of interactions between reproductive individuals and helpers. Helpers need to react to the group’s requirements and to adjust their tasks according
Externí odkaz:
https://doaj.org/article/2677620470014324bcf455f47ff36170
Publikováno v:
Royal Society Open Science, Vol 4, Iss 7 (2017)
Infections with potentially lethal pathogens may negatively affect an individual's lifespan and decrease its reproductive value. The terminal investment hypothesis predicts that individuals faced with a reduced survival should invest more into reprod
Externí odkaz:
https://doaj.org/article/bffcdd93b9c848be87f598b2c96269c4
Publikováno v:
European Journal of Entomology, Vol 104, Iss 2, Pp 243-246 (2007)
Cardiocondyla is one of the few ant genera in which winged dispersing males coexist with wingless fighter males, which predominantly mate inside their maternal nests. Male polymorphism is not genetically determined but induced by environmental condit
Externí odkaz:
https://doaj.org/article/d81b162929224c54954c632b45b834d6
The Ant Cardiocondyla elegans as Host of the Enigmatic Endoparasitic Fungus Myrmicinosporidium durum
Publikováno v:
Psyche: A Journal of Entomology, Vol 2015 (2015)
Data on host species and the distribution of the endoparasitic fungus Myrmicinosporidium durum increased continuously in recent decades. Here, we add the ant Cardiocondyla elegans as new host species. Colonies of the monogynous species were found inf
Externí odkaz:
https://doaj.org/article/1a0721ab22f4439db954908f9391b176
Publikováno v:
PLoS ONE, Vol 10, Iss 9, p e0137969 (2015)
The question on how individuals allocate resources into maintenance and reproduction is one of the central questions in life history theory. Yet, resource allocation into maintenance on the organismic level can only be measured indirectly. This is di
Externí odkaz:
https://doaj.org/article/8f3e9ef9d18849748b20950ab42d43ca
Autor:
Jürgen Heinze, Alexandra Schrempf, Honoré Rakotondrazafy, Tsiriniaina Rakotondranaivo, Brian L. Fisher
Publikováno v:
Sociobiology, Vol 61, Iss 3 (2014)
The ant genus Cardiocondyla exhibits a fascinating diversity of its reproductive biology, with winged and wingless males, long-winged and short-winged queens, strict monogyny and facultative polygyny with or without queen fighting. Here we report on
Externí odkaz:
https://doaj.org/article/642382477960442cbc73e25c439a3f19
Autor:
Jürgen Heinze, Alexandra Schrempf
Publikováno v:
PLoS ONE, Vol 7, Iss 4, p e35201 (2012)
The pattern of age-specific fecundity is a key component of the life history of organisms and shapes their ecology and evolution. In numerous animals, including humans, reproductive performance decreases with age. Here, we demonstrate that some socia
Externí odkaz:
https://doaj.org/article/af6fce9fd6cf4fa9adbb881fd1f50662
Publikováno v:
PLoS ONE, Vol 6, Iss 3, p e17323 (2011)
Context-dependent adjustment of mating tactics can drastically increase the mating success of behaviourally flexible animals. We used the ant Cardiocondyla obscurior as a model system to study adaptive adjustment of male mating tactics. This species
Externí odkaz:
https://doaj.org/article/a713e5359e8f49afa893c0ec31edd679
Autor:
Alexandra Schrempf, Jürgen Heinze
Publikováno v:
PLoS ONE, Vol 3, Iss 7, p e2592 (2008)
BACKGROUND: According to sexual conflict theory, males can increase their own fitness by transferring substances during copulation that increase the short-term fecundity of their mating partners at the cost of the future life expectancy and re-mating
Externí odkaz:
https://doaj.org/article/08c3ae62137248a8b9e8441617af6074