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Effects of competition and predation operating at individual and population levels: an overview of results from a long-term field experiment
After an overview of the discussion about the existence of intra- and interspecific competition that illustrates the contradictory opinions I...
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No evidence for adaptive sex ratio adjustment in a cooperatively breeding bird with helpful helpers
AbstractThe repayment hypothesis for offspring sex allocation predicts that breeders in cooperatively breeding groups should overproduce the hel**...
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Brood success of sex-role-reversed pheasant-tailed jacanas: the effects of social polyandry, seasonality, and male mating order
Multiple mating by avian females may increase hatching and overall brood success; however, reproductive effort and parental investment are costly,...
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Male but not female Kentish plovers Charadrius alexandrinus modulate foraging behaviour according to tide during incubation
During breeding, birds have to find a balance between reproductive tasks and the need to recover their energy. Foraging movements are constrained in...
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Brood sex ratio modulates the effects of extra food on parental effort and sibling competition in a sexually dimorphic raptor
AbstractConflicts are inherent to family systems and may occur at three levels. First, each parent benefits if its mate takes the greater share of...
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On the sparrowhawk-like calls of female common cuckoos: testing for heterospecific vocal mimicry in a conspecific functional context
AbstractMimicry is a widespread phenomenon whereby predatory or parasitic individuals can access unsuspecting prey or hosts for the former’s benefit....
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Behavior, ovarian status, and juvenile hormone titer in the emblematic social wasp Zethus miniatus (Vespidae, Eumeninae)
AbstractShowing traces of eusocial behavior, Zethus miniatus is an emblematic member of the primarily solitary subfamily Eumeninae. The females of...
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Know When You Are Too Many: Density-Dependent Release of Pheromones During Host Colonisation by the European Spruce Bark Beetle, Ips typographus (L.)
Individuals across various animal species communicate their presence to conspecifics. Especially phytophagous and parasitoid insects with their brood...
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Challenges in kiwifruit (Actinidia chinensis var. deliciosa) quality and its relationship with crop management factors
Kiwifruit ( Actinidia chinensis var. deliciosa ) has become an important horticultural crop worldwide. Its dioecious nature challenges its commercial...
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Competition and Defence
The number of falcon pairs attempting to breed varied from one year to another. The variable size of a breeding population can produce a competition...
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Comparative genetic study of the colony structure and colony spatial distribution between the higher termite Amitermes parvulus and the lower, subterranean termite Reticulitermes flavipes in an urban environment
In insects, ecological competition has often resulted in phenotypic changes and modifications to foraging areas. In termites—and social insects as a...
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Trade-offs between immunity and competitive ability in fighting ant males
BackgroundFighting disease while fighting rivals exposes males to constraints and trade-offs during male-male competition. We here tested how both...
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Begging is an honest signal of hunger in a communally nesting bird with low genetic relatedness
AbstractKin selection theory predicts that conflict over resource allocation will intensify as relatedness between dependent young and adult...
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Isotopic niche partitioning and individual specialization in an Arctic raptor guild
Intra- and inter-specific resource partitioning within predator communities is a fundamental component of trophic ecology, and one proposed mechanism...
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Age-related changes in cuticular hydrocarbon bouquet and same-sex sexual behavior of mason bee males (Osmia cornuta and O. bicornis)
Finding a mate is the central task in the lives of many male insects. In many solitary bees, sexual competition between males is high due to monandry...
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Brood size is associated with apparent telomere lengthening in nestling barn swallows
Early life for animals is often a time of rapid growth and development. In a resource-limited environment, life history theory predicts that there...
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Larval Settlement and the Reproductive Phenology of Sympathric Hermit Crabs in Temperate Waters
AbstractThe problem of the coexistence of closely related species of Paguroidea (Decapoda: Anomura) and the main mechanisms of structuring the...
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Optimal fissioning strategies of social insects with respect to colony dynamics and nest founding probability
Social insects demonstrate two fundamentally different modes of reproduction, independent colony foundation (ICF) by single fertilized queens or...
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Temnothorax longispinosus acorn ant colonies respond to parasitic raids by emigrating
Social insects face many threats from predators and parasites, and so have evolved a diversity of behavioral defense strategies to evade and combat...
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Breeding parameters and factors influencing the reproduction of an expanding Long-legged Buzzard (Buteo rufinus) population under high breeding density conditions
The productivity of raptors is affected by different factors such as habitat, food supply, disturbance, weather conditions, and competition. Of the...
