Maximum ingested food size in captive anthropoids

2015 ◽  
Vol 158 (1) ◽  
pp. 92-104 ◽  
Author(s):  
Jonathan M.G. Perry ◽  
Meredith L. Bastian ◽  
Elizabeth St Clair ◽  
Adam Hartstone-Rose
Keyword(s):  
Food Size

scholarly journals Intraspecific Variation in Maximum Ingested Food Size and Body Mass in Varecia rubra and Propithecus coquereli

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Adam Hartstone-Rose ◽  
Jonathan M. G. Perry
Keyword(s):  
Body Size ◽  
Body Mass ◽  
Individual Variation ◽  
Size Variation ◽  
Maximum Size ◽  
Least Squares Regression ◽  
Scaling Relationship ◽  
Varecia Rubra ◽  
Food Size ◽  
The Relationship

In a recent study, we quantified the scaling of ingested food size (Vb )—the maximum size at which an animal consistently ingests food whole—and found that Vb scaled isometrically between species of captive strepsirrhines. The current study examines the relationship between Vb and body size within species with a focus on the frugivorous Varecia rubra and the folivorous Propithecus coquereli. We found no overlap in Vb between the species (all V. rubra ingested larger pieces of food relative to those eaten by P. coquereli), and least-squares regression of Vb and three different measures of body mass showed no scaling relationship within each species. We believe that this lack of relationship results from the relatively narrow intraspecific body size variation and seemingly patternless individual variation in Vb within species and take this study as further evidence that general scaling questions are best examined interspecifically rather than intraspecifically.

The ecology of the island-lizard Podarcis sicula salfii

1981 ◽  
Vol 2 (3) ◽  
pp. 243-257 ◽  
Author(s):  
P.E. Ouboter
Keyword(s):  
Body Temperature ◽  
Interspecific Competition ◽  
The Sun ◽  
Podarcis Sicula ◽  
Dense Vegetation ◽  
Food Size ◽  
Preferred Body Temperature ◽  
Erica Arborea ◽  
Sufficient Food ◽  
Excursion Time

AbstractIn the summers of 1974 till 1979 microdistribution of Podarcis sicula saffti was examined. Areas without much vegetation and areas with dense vegetation have low densities. Horizontal space, predators, parasites, interspecific competition, shelter and dew appear to be non important factors in the microdistribution of P. s. safii. From 9 a. m. until 6 p. m. temperature in the sun is above PBT (preferred-body-temperature) in all zones. Shade temperature is different from one zone to another. In the most rocky zone without much vegetation, shade is provided by crevices. Shade temperature is under PBT. Food is mainly available outside crevices, in vegetation of Statice sinuatum. Food-size is small, so excursion-time will be long. Lizards are able to collect sufficient food if Statice-plants are close to crevices. The zone with vegetation of Erica arborea, on top of the island, is shaded all day. Shade temperature is under PBT. Only clearings are inhabited by lizards. All other zones have bushes and open areas. During the hot hours bushes provide shade, with shade temperature close to PBT. Food is mainly available in these bushes.

Temperature-dependent effect of food size on the reproductive performances of the small-sized cladoceran Moina micrura

2015 ◽  
Vol 59 ◽  
pp. 297-301 ◽  
Author(s):  
Rui Chen ◽  
Nuo Xu ◽  
Feixi Zhao ◽  
Yingyuan Wu ◽  
Yuan Huang ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Dependent Effect ◽  
Food Size ◽  
Effect Of Food

scholarly journals Body size and food size in freshwater zooplankton

1984 ◽  
Vol 81 (20) ◽  
pp. 6427-6431 ◽  
Author(s):  
K. G. Bogdan ◽  
J. J. Gilbert
Keyword(s):  
Body Size ◽  
Freshwater Zooplankton ◽  
Food Size

Rainbow Trout (Salmo gairdneri) and Cutthroat Trout (S. clarki) Interactions in Coastal British Columbia Lakes

1981 ◽  
Vol 38 (10) ◽  
pp. 1228-1246 ◽  
Author(s):  
Nils-Arvid Nilsson ◽  
Thomas G. Northcote
Keyword(s):  
Rainbow Trout ◽  
Aggressive Behavior ◽  
Prey Capture ◽  
Cutthroat Trout ◽  
Maximum Size ◽  
Salmo Gairdneri ◽  
Sympatric Populations ◽  
Food Size ◽  
Coastal British Columbia ◽  
Trout Feeding

Food, size, and growth of 17 allopatric and 10 sympatric lake populations of rainbow trout (Salmo gairdneri) and cutthroat trout (S. clarki) were compared as well as their aggressive behavior during feeding in experimental tanks. In allopatry, rainbow trout fed extensively on benthic, midwater, and surface prey. Allopatric cutthroat utilized mostly midwater prey but in contrast with rainbow trout also fish (Cottus, Gasterosteus) when available. In sympatry, rainbow trout exploited mainly limnetic surface and midwater prey whereas cutthroat trout utilized more littoral prey and were much more piscivorous in feeding. Allopatric rainbow attained a greater average and maximum size (length, weight) than allopatric cutthroat whereas in sympatric populations cutthroat were clearly larger than rainbow. Growth (size at specific ages) usually was higher for rainbow compared with cutthroat trout in allopatric populations but just the reverse in sympatric populations. When held as matched pairs in aquaria, rainbow consistently were more aggressive than cutthroat trout and displayed different patterns of threat as well as means of prey capture. Differences in feeding and growth in sympatry may result from interactive segregation, the more pronounced aggressiveness of rainbow promoting higher growth in cutthroat trout.Key words: rainbow trout, cutthroat trout, feeding, growth, habitat, aggressive behavior, feeding behavior, interactive segregation

scholarly journals Morphology of mandibles and food size in two fairy shrimps (Branchiopoda: Anostraca) from Thailand

2017 ◽  
Vol 37 (5) ◽  
pp. 579-587 ◽  
Author(s):  
Lalida Chaoruangrit ◽  
Sutthana Plodsomboon ◽  
D Christopher Rogers ◽  
La-orsri Sanoamuang
Keyword(s):  
Fairy Shrimps ◽  
Food Size

Modeling of Vacuum Cooling for Porous Food: Size and Pore Diameter

2016 ◽  
Vol 13 (4) ◽  
pp. 2259-2263 ◽  
Author(s):  
Dexi Wang ◽  
Zhijun Zhang ◽  
Meng Wang
Keyword(s):  
Pore Diameter ◽  
Vacuum Cooling ◽  
Food Size

Frontal attentional responses to food size are abnormal in obese subjects: An electroencephalographic study

2009 ◽  
Vol 120 (8) ◽  
pp. 1441-1448 ◽  
Author(s):  
Claudio Babiloni ◽  
Claudio Del Percio ◽  
Anna Valenzano ◽  
Nicola Marzano ◽  
Mario De Rosas ◽  
...  
Keyword(s):  
Food Size ◽  
Electroencephalographic Study ◽  
Obese Subjects ◽  
Attentional Responses

Ecological segregation in a subterranean reptile assemblage in arid Australia

1989 ◽  
Vol 10 (3) ◽  
pp. 277-295 ◽  
Author(s):  
Klaus Henle
Keyword(s):  
National Park ◽  
Reproductive Effort ◽  
Arid Zone ◽  
Daily Maximum ◽  
First Year ◽  
Lizard Species ◽  
Eastern Australia ◽  
Food Size ◽  
Late Maturity ◽  
Second Year

AbstractThe organisation of the subterranean component of an arid zone reptile community was studies in Kinchega National Park (Eastern Australia) from September 1985 to May 1987. Three species of fossorial or semifossorial lizards and two species of snakes were found in Kinchega. All species were habitat generalists, but microhabitat, food size and food taxon clearly separated them. All species were primarily nocturnal although Lerista xanthura was occasionally active during the day. All three lizard species were active from September to May. Activity of Eremiascincus richardsonii and L. xanthura were significantly correlated with monthly mean daily maximum and minimum temperatures. The optimum temperature of L. punctatovittata was 28.8 °C in daytime retreats. Biomass ranged from 505-900 g/ha in E. richardsonii and from 968-1152 g/ha in L. punctatovittata. All three lizard species produced only one clutch per year. L. punctatovittata and E. richardsonii reached sexual maturity at the end of their second year, L. xanthura matured in its first year. The data show that subterranean lizard guilds have a different structure than diurnal and non-fossorial noctunal lizard assemblies. The data also indicate a correlation of late maturity and low reproductive effort in fossorial lizards.

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