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Visitation rate, but not foraging range, responds to brood size manipulation in an aerial insectivore
AbstractLife history theory predicts that increased investment in current offspring decreases future fecundity or survival. Avian parental investment...
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The interactive effect of ambient temperature and brood size manipulation on nestling body mass in blue tits: an exploratory analysis of a long-term study
BackgroundRelatively few studies have examined the interactive effects of ecological factors on physiological responses in wild animals. Nearly all...
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No evidence for associations between brood size, gut microbiome diversity and survival in great tit (Parus major) nestlings
BackgroundThe gut microbiome forms at an early stage, yet data on the environmental factors influencing the development of wild avian microbiomes is...
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Are brood sex ratios adaptive? – The effect of experimentally altered brood sex ratios on parental feeding behaviour
AbstractCorrelations between brood sex ratios (BSRs) and parental or environmental quality have been found in many species. This phenomenon is called...
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Sex ratio and sex-specific chick mortality in a species with moderate sexual size dimorphism and female brood desertion
An equal sex ratio at the population level is the usual, evolutionarily stable condition. However, at the individual level, it may be adaptive for...
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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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The impact of honey bee (Apis mellifera) group size on hygienic behavior performance
AbstractThe size of animal groups has profound effects on individual and collective behavior, particularly in social insect colonies. Larger colonies...
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Urban landscapes affect wild bee maternal investment and body size
Urbanization is considered one of the major threats to biodiversity worldwide, with a special concern for native species decline, including wild...
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Acoustic discrimination by hosts favours vocal trickery in fledglings of the brood-parasitic screaming cowbird
AbstractAgonistic interactions between obligate avian brood parasites and their hosts can lead to the coevolution at any stage of the nesting cycle,...
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Bumblebee cognitive abilities are robust to changes in colony size
AbstractEusocial insect colonies act as a superorganism, which can improve their ability to buffer the negative impact of some anthropogenic...
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A new brood-pollination mutualism between Stellera chamaejasme and flower thrips Frankliniella intonsa
BackgroundBrood pollination mutualism is a special type of plant-pollinator interaction in which adult insects pollinate plants, and the plants...
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Effects of volitional emigration timing and smolt size on survival and age-at-return in a Pacific salmon hatchery population
Many Pacific salmon populations are returning from sea at younger ages and smaller sizes. Hatchery culture, management practices, and environmental...
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Prenatal manipulation of yolk androgen levels affects egg size but not egg colour in a songbird
AbstractMaternal allocation of androgens to the egg yolk allows mothers to adaptively manipulate offspring phenotype. Increases of egg androgen...
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Host parent responses to heterospecific parasite nestling alarm calls are independent of past and current experience with experimental brood parasitism
Communication between parents and dependent offspring is critical not only during provisioning, but also in antipredator contexts. In altricial...
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No evidence of sex ratio manipulation by black-throated blue warblers in response to food availability
Sex allocation theory predicts that females should bias their offspring sex ratios when the fitness benefits of producing sons or daughters differ...
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Photoperiod manipulation improves growth performance, haematological indices and economic returns of Indian butter catfish, Ompok bimaculatus (Bloch, 1794)
Photoperiod manipulation is emerging as an effective approach for regulating physiological functions in fish. This study aimed to assess the impact...
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Experimental increase of worker diversity benefits brood production in ants
BackgroundThe reproductive division of labor of eusocial insects, whereby one or several queens monopolize reproduction, evolved in a context of high...
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Effects of mealybug and female body sizes on host examination and offspring developmental performances in the gregarious hyperparasitoid Cheiloneurus nankingensis
Understanding how native hyperparasitoids are attuned to novel hosts has practical implications for the classical biological control of invasive pest...
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Why do parents produce small broods of offspring that have lower body mass, survival, and lifetime reproductive success? A case study in a long-lived bird
AbstractNumerous studies have examined the correlation between offspring quantity and quality, and many have found that the most common brood size is...
