Zobrazeno 1 - 10
of 37
pro vyhledávání: '"David Mayntz"'
Publikováno v:
Tidsskrift for Professionsstudier, Vol 17, Iss 33 (2021)
Over the latest decade ‘research integrity’ has become a major theme on the Danish research policy agenda. However, the national initiatives are broad and abstract and require specific organizational translations. Hence, in this study we ask how
Externí odkaz:
https://doaj.org/article/5d6bd471d8994c6f979127c0ff53dbb8
Publikováno v:
Deventer, S A, Herberstein, M E, Mayntz, D, O'Hanlon, J C & Schneider, J M 2017, ' Female fecundity and offspring survival are not increased through sexual cannibalism in the spider Larinioides sclopetarius ', Journal of Evolutionary Biology, vol. 30, no. 12, pp. 2146-2155 . https://doi.org/10.1111/jeb.13178
Many hypotheses explaining the evolution and maintenance of sexual cannibalism incorporate the nutritional aspect of the consumption of males. Most studies have focused on a fecundity advantage through consumption of a male; however, recent studies h
Autor:
Stanislav Pekár, David Mayntz
Publikováno v:
Journal of Insect Physiology. 62:32-38
Prey nutrient quality determines predator performance. Polyphagous predators can address nutritional challenges by targeting prey with specific nutrient composition, but prey-specialised predators (e.g., ant-eaters), must obtain all nutrients from li
Autor:
Kim Jensen, David Mayntz, Stephen J. Simpson, Fiona J. Clissold, Søren Toft, David Raubenheimer, John Hunt
Publikováno v:
Jensen, K, Mayntz, D, Toft, S, Clissold, F J, Hunt, J, Raubenheimer, D & Simpson, S J 2012, ' Optimal foraging for specific nutrients in predatory beetles ', Proceedings of the Royal Society B: Biological Sciences, vol. 279, no. 1736, pp. 2212-2218 . https://doi.org/10.1098/rspb.2011.2410, https://doi.org/10.1098/rspb.2011.2410
Evolutionary theory predicts that animals should forage to maximize their fitness, which in predators is traditionally assumed equivalent to maximizing energy intake rather than balancing the intake of specific nutrients. We restricted female predato
Publikováno v:
Toft, S, Li, D & Mayntz, D 2010, ' A specialized araneophagic predator's short-term nutrient utilization depends on the macronutrient content of prey rather than on prey taxonomic affiliation ', Physiological Entomology, vol. 35, pp. 317-327 . https://doi.org/10.1111/j.1365-3032.2010.00746.x
A specialist predator that has a specialized diet, prey-specific prey-capture behaviour and a preference for a particular type of prey may or may not be specialized metabolically. Previous studies have shown that jumping spiders of the genus Portia p
Publikováno v:
Animal Behaviour. 79:1301-1306
Specialized predators must obtain all required nutrients from a single prey species. In some species nutrient balance may be possible by selecting various body parts. We tested how different ant body parts affect the fitness of a specialized ant pred
Publikováno v:
Functional Ecology. 23:4-16
Summary 1. The science of nutritional ecology spans a wide range of fields, including ecology, nutrition, behaviour, morphology, physiology, life history and evolutionary biology. But does nutritional ecology have a unique theoretical framework and r
Autor:
Vivi Hunnicke Nielsen, Carsten Hejlesen, David Raubenheimer, Søren Toft, Stephen J. Simpson, David Mayntz, Allan Sørensen
Publikováno v:
Mayntz, D, Nielsen, V H, Sørensen, A, Toft, S, Raubenheimer, D, Hejlesen, C & Simpson, S J 2009, ' Balancing of protein and lipid intake by a mammalian carnivore, the mink, Mustela vison ', Animal Behaviour, vol. 77, no. 2, pp. 349-355 . https://doi.org/10.1016/j.anbehav.2008.09.036
Many herbivores and omnivores can balance their intake of macronutrients when faced with nutritionally variable environments. Carnivores, however, are widely believed to optimize their rates of prey capture and energy intake rather than balancing nut
Publikováno v:
Behavioral Ecology. 19:605-611
Cooperative breeding societies are characterized by alloparental care and unequal distribution of reproduction (skewed reproduction). Competition for resources among group members may determine the reproductive outcome of each individual. In a spider
Publikováno v:
Pekár, S, Toft, S, Hrusková, M & Mayntz, D 2008, ' Dietary and prey-capture adaptations by which Zodarion germanicum, an ant-eating spider (Araneae: Zodariidae), specialises on the Formicinae ', Naturwissenschaften, vol. 95, pp. 233-239 . https://doi.org/10.1007/s00114-007-0322-3
There has been considerable recent interest in the biology of spiders that specialise on ants as prey, but previous studies have tended to envisage the level of adaptation as being to ants as a group. In this paper, we provide evidence that Zodarion