Relationships Between Egg Mass Size and Egg Number per Egg Mass in the Casuarina Moth,Lymantria xylina(Lepidoptera: Lymantriidae)
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چکیده
منابع مشابه
Interspecific relationships between egg size and the level of parental investment per offspring in echinoderms.
The relationship between the size of an egg and its energy content was analyzed using published data for 47 species of echinoderms. Scaling relationships were evaluated for all species, as well as for subsets of the species, based on mode of development. Regressions were calculated using linear, power function, full allometric, and second-order polynomial models. The full allometric model is pr...
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--The s x of Canada Goose (Branta canadensis) goslings was not correlated with the position in the laying sequence, egg mass, or size of goslings at hatching. However, male goslings were larger at fledging than female goslings. This suggests that sex determination in Canada Geese and probably in other Anserinae occurs randomly over the laying sequence and that parental allocation of resources i...
متن کاملEgg components, egg size, and hatchling size in leatherback turtles.
Relationships between egg size, egg components, and neonate size have been investigated across a wide range of oviparous taxa. Differences in egg traits among taxa reflect not only phylogenetic differences, but also interactions between biotic (i.e., maternal resource allocation) and abiotic (i.e. nest environment conditions) factors. We examined relationships between egg mass, egg composition,...
متن کاملThe manipulation of egg size and egg quality
T.R. Morris Department of Agriculture and Horticulture, University of Reading, England Striking improvements in the efficiency of egg production have been achieved in many countries, with the result that eggs are cheap and the market is saturated. In these circumstances, the emphasis shifts from quantity to quality, though what is meant by quality differs considerably from place to place. Some ...
متن کاملAllometric relationships between embryonic heart rate and fresh egg mass in birds.
Previously, we have measured daily changes (developmental patterns) in embryonic heart rate (fh) in altricial and semi-altricial (ASA) birds (range of mean fresh egg mass approximately 1-20 g), semi-precocial seabirds (egg mass approximately 38-288 g) and precocial birds (egg mass approximately 6-1400 g). An allometric relationship between embryonic fh at 80 % of incubation duration (ID) and fr...
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ژورنال
عنوان ژورنال: Environmental Entomology
سال: 2003
ISSN: 0046-225X,1938-2936
DOI: 10.1603/0046-225x-32.4.752