Frontiers in Zoology
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Control of social monogamy through aggression in a hermaphroditic shrimp
Frontiers in Zoology - Tập 8 - Trang 1-7 - 2011
Sex allocation theory predicts that in small mating groups simultaneous hermaphroditism is the optimal form of gender expression. Under these conditions, male allocation is predicted to be very low and overall per-capita reproductive output maximal. This is particularly true for individuals that live in pairs, but monogamy is highly susceptible to cheating by both partners. However, certain condit......
Goats distinguish between positive and negative emotion-linked vocalisations
Frontiers in Zoology - Tập 16 - Trang 1-11 - 2019
Evidence from humans suggests that the expression of emotions can regulate social interactions and promote coordination within a group. Despite its evolutionary importance, social communication of emotions in non-human animals is still not well understood. Here, we combine behavioural and physiological measures, to determine if animals can distinguish between vocalisations linked to different emot......
When SEM becomes a deceptive tool of analysis: the unexpected discovery of epidermal glands with stalked ducts on the ultimate legs of geophilomorph centipedes
Frontiers in Zoology - Tập 18 - Trang 1-19 - 2021
The jointed appendage is a key novelty in arthropod evolution and arthropod legs are known to vary enormously in relation to function. Among centipedes, the ultimate legs always are distinctly different from locomotory legs, and different centipede taxa evolved different structural and functional modifications. In Geophilomorpha (soil centipedes), ultimate legs do not participate in locomotion and......
Different feeding strategies in Antarctic scavenging amphipods and their implications for colonisation success in times of retreating glaciers
Frontiers in Zoology - Tập 14 - Trang 1-15 - 2017
Scavenger guilds are composed of a variety of species, co-existing in the same habitat and sharing the same niche in the food web. Niche partitioning among them can manifest in different feeding strategies, e.g. during carcass feeding. In the bentho-pelagic realm of the Southern Ocean, scavenging amphipods (Lysianassoidea) are ubiquitous and occupy a central role in decomposition processes. Here w......
Influences of submerged plant collapse on diet composition, breadth, and overlap among four crane species at Poyang Lake, China
Frontiers in Zoology - Tập 18 - Trang 1-17 - 2021
Interannual variation in resource abundance has become more unpredictable, and food shortages have increasingly occurred in the recent decades. However, compared to seasonal fluctuations in resource abundance, the influences of interannual variation in resource abundance on the dietary niches of consumers remain poorly understood. Poyang Lake, China, is a very important wintering ground for the gl......
Modeling the origins of mammalian sociality: moderate evidence for matrilineal signatures in mouse lemur vocalizations
Frontiers in Zoology - Tập 11 - Trang 1-14 - 2014
Maternal kin selection is a driving force in the evolution of mammalian social complexity and it requires that kin are distinctive from nonkin. The transition from the ancestral state of asociality to the derived state of complex social groups is thought to have occurred via solitary foraging, in which individuals forage alone, but, unlike the asocial ancestors, maintain dispersed social networks ......
Intra-cellular bacterial infections affect learning and memory capacities of an invertebrate
Frontiers in Zoology - Tập 12 - Trang 1-6 - 2015
How host manipulation by parasites evolves is fascinating but challenging evolutionary question remains. Many parasites share the capacity to manipulate host behavior increasing their transmission success. However, little is known about the learning and memory impact of parasites on their host. Wolbachia are widespread endosymbionts and infect most insect species. These bacteria are maternally tra......
Alternative delivery of male accessory gland products
Frontiers in Zoology - Tập 11 - Trang 1-8 - 2014
To increase fertilization success, males transfer accessory gland products (Acps). Several species have evolved unconventional Acps transfer modes, meaning that Acps are transferred separately from the sperm. By surveying the sperm-free Acps transfer cases, we show that these animals have evolved a common strategy to deliver Acps: they all inject Acps directly through the partner’s body wall into ......
The nervous system of Paludicella articulata - first evidence of a neuroepithelium in a ctenostome ectoproct
Frontiers in Zoology - Tập 11 - Trang 1-11 - 2014
Comparatively few data are available concerning the structure of the adult nervous system in the Ectoprocta or Bryozoa. In contrast to all other ectoprocts, the cerebral ganglion of phylactolaemates contains a central fluid-filled lumen surrounded by a neuroepithelium. Preliminary observations have shown a small lumen within the cerebral ganglion of the ctenostome Paludicella articulata. Ctenostom......
Introducing biological realism into the study of developmental plasticity in behaviour
Frontiers in Zoology - Tập 12 Số Suppl 1 - Trang S6 - 2015
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