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Data from: Human recreation reduces clutch size in great tits Parus major regardless of risk-taking personality
- 负责人：
- Hutfluss, Alexander
- 关键词：
- Animal personality clutch size human disturbance life history nest site selection perceived predation risk
- DOI：
- doi:10.5061/dryad.4m8b580
- 摘要：
- of human recreation pressure on a cavity-breeding passerine. We uniquely quantified human recreation pressure over a substantial (8-year) period
Data from: Rearing a virulent common cuckoo is not extra costly for its only cavity-nesting host
- 负责人：
- DOI：
- doi:10.5061/dryad.665117s
- 摘要：
- Virulent brood parasites refrain from arduous parental care, often kill host progeny and inflict rearing costs upon their hosts. Quantifying the magnitude of such costs across the whole period of care (from incubation through to parasite fledgling independence) is essential for understanding the selection pressures on hosts to evolve antiparasitic defences. Despite the central importance of such costs for our understanding of co-evolutionary dynamics, they have not yet been comprehensively quantified in any host of any avian brood parasite. We quantified parasite rearing costs in common redstarts Phoenicurus phoenicurus raising either parasitic common cuckoo Cuculus canorus or their own chicks throughout the complete breeding cycle and used multiple cost parameters for each breeding stage: incubation, brooding and feeding effort; length of parental/host care; parent/host body condition and the heterophil/lymphocyte ratio (stress level indicator). Surprisingly and contrary to traditional assumptions, rearing the parasite per se was not associated with overall higher physiological or physical costs to hosts above the natural levels imposed by efforts to rear their own progeny. The low parasite-rearing costs imposed on hosts may in part explain the low levels of known host counter-defences in this unusually frequently parasitised cuckoo host.
Data from: An unexpected clade of South American ground beetles (Coleoptera: Carabidae: Bembidion)
- 负责人：
- DOI：
- doi:10.5061/dryad.47r16
- 摘要：
- tetrapholeon sp. n., described here), these pits are so deep that their projections into the body cavity from the two sides touch each other internally. These
Data from: A new echimyid genus (Rodentia, Caviomorpha) in Central Argentina: uncovered diversity of a Brazilian group of mammals in the Pleistocene
- 负责人：
- DOI：
- doi:10.5061/dryad.67fs3bs
- 摘要：
- h deeper anteriorly than posteriorly, with the dorsal border descending more abruptly posteriorly, smaller orbital cavity, and external auditory meatus rela
Data from: High quality statistical shape modelling of the human nasal cavity and applications
- 负责人：
- DOI：
- doi:10.5061/dryad.75fq000
- 摘要：
- The human nose is a complex organ that shows large morphological variations and has many important functions. However, the relation between shape and function is not yet fully understood. In this work, we present a high quality statistical shape model of the human nose based on clinical CT data of 46 patients. A technique based on cylindrical parametrization was used to create a correspondence between the nasal shapes of the population. Applying principal component analysis on these corresponded nasal cavities resulted in an average nasal geometry and geometrical variations, known as principal components, present in the population with a high precision. The analysis led to 46 principal components, which account for 95 percent of the total geometrical variation captured. These variations are first discussed qualitatively, and the effect on the average nasal shape of the first five principal components is visualized. Hereafter, by using this statistical shape model, two application examples that lead to quantitative data are shown: nasal shape in function of age and gender, and a morphometric analysis of different anatomical regions. Shape models, as the one presented here, can help to get a better understanding of nasal shape and variation, and their relationship with demographic data.
Water absorption process capability analysis by chicken carcasses during precooling
- 负责人：
- DOI：
- doi:10.6084/m9.figshare.11313830
- 摘要：
- d on an industrial scale, by the analysis of 720 carcasses. After structural alterations, aiming at greater bubble control and shorter residence time
Data from: The extension of internal humidity levels beyond the soil surface facilitates mound expansion in Macrotermes
- 负责人：
- DOI：
- doi:10.5061/dryad.xd2547ddr
- 摘要：
- external world, in a “bubble” that can be disrupted by external factors like wind. Termites transport more soil mass into on-mound reservoirs when shielded
Data from: Non-clonal coloniality: genetically chimeric colonies through fusion of sexually produced polyps in the hydrozoan Ectopleura larynx
- 负责人：
- DOI：
- doi:10.5061/dryad.sr02fk0
- 摘要：
- t they consist of multiple polyps physically connected through continuous epithelia and shared gastrovascular cavity, Ectopleura larynx does not asexually bud
Data from: Nest size is predicted by female identity and the local environment in the blue tit, but is not related to genetic or foster mother's nest size
- 负责人：
- DOI：
- doi:10.5061/dryad.sc30g
- 摘要：
- The potential for animals to respond to changing climates has sparked interest in intraspecific variation in avian nest structure since this may influence nest microclimate and protect eggs and offspring from inclement weather. However, there have been relatively few large-scale attempts to examine variation in nests or the determinates of individual variation in nest structure within populations. Using a set of mostly pre-registered analyses, we studied potential predictors of variation in the size of a large sample (803) of blue tit (Cyanistes caeruleus) nests across three breeding seasons at Wytham Woods, UK. Whilst our pre-registered analyses found that individual females built very similar nests across years, there was no evidence in follow-up (post hoc) analyses that their nest size correlated to that of their genetic mother or, in a cross-fostering experiment, to the nest where they were reared. In further pre-registered analyses, spatial environmental variability explained nest size variability at relatively broad spatial scales, and especially strongly at the scale of individual nestboxes. Our study indicates that nest structure is a characteristic of individuals, but is not strongly heritable, indicating that it will not respond rapidly to selection. Explaining the within-individual and within-location repeatability we observed requires further study.
Data from: Enigmatic hook-like structures in Mesozoic ammonites (Scaphitidae)
- 负责人：
- 关键词：
- Scaphitidae;Ammonites;Rhaeboceras halli;Cretaceous;hooks;Morphometrics;exceptional preservation
- DOI：
- doi:10.5061/dryad.1bg1c1f
- 摘要：
- . The hook-like structures are composed of a thin layer of brushite. The base of the hooks is open on one side forming an internal cavity, now filled
