Seasonal Variation in Reproductive Effort and Its Effect on Offspring Size in the Lizard Sceloporus undulatus
β Scribed by Michael J. Angilletta, Jr., Michael W. Sears and R. Scott Winters
- Book ID
- 121299799
- Publisher
- Allen Press Online Publishing
- Year
- 2001
- Tongue
- English
- Weight
- 420 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0018-0831
- DOI
- 10.2307/3893102
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Most species of woodlice in temperate habitats have discrete breeding seasons. It is hypothesised that breeding synchronises with favourable environmental conditions to maximise offspring growth and survivorship (Willows 1984). We measured the breeding phenology of a species introduced to a tropical
## Abstract Seasonal changes in blood composition (plasma osmolality, total plasma protein, hematocrit) in two freeβliving populations of fence lizards, __Sceloporus occidentalis__, one living in a very arid environment (Pearblossom, CA) and another in a milder desert (Bend, OR), were analyzed. In