The physiology of cooperative breeding in a rare social canid; sex, suppression and pseudopregnancy in female Ethiopian wolves

@article{Kesteren2013ThePO,
  title={The physiology of cooperative breeding in a rare social canid; sex, suppression and pseudopregnancy in female Ethiopian wolves},
  author={Freya van Kesteren and Monique Christina Johanna Paris and David W. Macdonald and Robert P. Millar and Kifle Argaw and Paul J. Johnson and Wenche Kristin Farstad and Claudio Sillero-Zubiri},
  journal={Physiology \& Behavior},
  year={2013},
  volume={122},
  pages={39-45}
}
Canid Reproductive Biology: Norm and Unique Aspects in Strategies and Mechanisms
TLDR
This review summarizes the current knowledge of canid reproduction, including estrus cyclicity, seasonality, and seminal traits, with the emphasis on species diversity.
Genetic variation and parentage in the Ethiopian wolf Canis simensis
TLDR
The results of this study contribute to the understanding of the social system of the Ethiopian wolf, document the consequence of disease outbreaks to pack structure, and should be useful to devise future in-situ management plans towards stabilising the existing amount of genetic variation.
Reproduction and advances in reproductive studies in carnivores.
TLDR
Although carnivores are comprised of 19 families, they will only focus their attention on four taxonomic groups, including felids, canids, ursids and mustelids, with emphasis on species diversity in reproductive mechanisms.
Female-Based Patterns and Social Function in Avian Chemical Communication
TLDR
This work proposes several social functions for uropygial gland secretions in female-based patterns, similar to those reported in mammals, but which are largely unstudied in birds.
Helminth parasites in the endangered Ethiopian wolf, Canis simensis
TLDR
Faecal samples collected from 94 wild Ethiopian wolves in the Bale Mountains of southern Ethiopia were screened for the presence of helminth eggs using a semi-quantitative volumetric dilution method with microscopy and associations between presence/absence of Capillaria, Toxocara and Trichuris eggs were found.
Female Chemical Signalling Underlying Reproduction in Mammals
TLDR
Evidence that female chemical signals also play important roles in sexual attraction, in mediating reproductive competition and cooperation between females, and in maternal care is reviewed, all central to female reproductive success.
Monogamy: Cause, Consequence, or Corollary of Success in Wild Canids?
TLDR
This review asks why canids are monogamous and how monogamy is related to their success and proposes the monogamy as pro-cooperative hypothesis, suggesting four characteristics have contributed to canid success: ecological flexibility, high mobility, high reproductive rates, sociality/cooperation, and the latter two being consequences of monogamy.
...
1
2
...

References

SHOWING 1-10 OF 50 REFERENCES
Reproduction in free-ranging Propithecus verreauxi: estrus and the relationship between multiple partner matings and fertilization.
TLDR
Preliminary data suggest that fertilization insurance is not adequate to explain polyandrous mating in sifaka at Beza Mahafaly.
Studies of male reproduction in captive African wild dogs (Lycaon pictus).
Reproduction in the endangered African wild dog: basic physiology, reproductive suppression and possible benefits of artificial insemination.
Male and female mating competition in wolves: female suppression vs. male intervention
TLDR
Analysis of the social behaviour of wolves in and around the mating season at Burger's Zoo in Arnhem (the Netherlands) found that male competition was comparatively more context-related while female competition took the form of unprovoked hostility.
Male philopatry, extra-pack copulations and inbreeding avoidance in Ethiopian wolves (Canis simensis)
TLDR
The possibility that extra-pair copulations may be widespread in canid societies and that the monogamy supposedly fundamental to the family may be more sociological than genetic is raised.
Non-invasive assessment of the annual gonadal cycle in free-living Kakapo (Strigops habroptilus) using fecal steroid measurements
TLDR
Methods for measuring testosterone and estradiol levels in chicken droppings (Cockrem and Rounce 1994) were applied to an analysis of Kakapo droppings in order to determine the annual pattern of steroid levels and to relate this pattern to the events of the breeding cycle.
Longitudinal fecal steroid excretion in maned wolves (Chrysocyon brachyurus).
TLDR
Values of fecal P, T, and the ratio P/T were useful for differentiating gender and detecting pregnancy in females in maned wolves, endangered South American canids.
Extension of reproductive suppression by pheromonal cues in subordinate female marmoset monkeys, Callithrix jacchus.
TLDR
Contact of subordinate females with olfactory stimuli from dominant females maintains the suppression of both LH secretion and ovulation in socially subordinate female marmosets.
Effects of reproductive and social variables on fecal glucocorticoid levels in a sample of adult male ring‐tailed lemurs (Lemur catta) at the Beza Mahafaly Reserve, Madagascar
TLDR
Interindividual differences in mean fecal glucocorticoid levels among males in three groups of wild ring‐tailed lemurs are examined to better understand the physiological costs of group living for males in a female‐dominant species that exhibits strict reproductive seasonality.
Energetics, reproductive suppression and obligate communal breeding in carnivores
TLDR
Comparative data from communally breeding carnivores is used to show that the energetic costs of reproduction may be a determinant of reproductive suppression, and that reproductive energetics may also help to explain why communal breeding is obligate in some species.
...
1
2
3
4
5
...