Body size, age, and growth were studied in samples of Nile monitor lizards from variably exploited populations. One sample originated from the central Niger delta, in Mali, and the other two from Lake Chad. Snout–vent length, mean age, and longevity were reduced in the most exploited animals. These exhibited a characteristic pattern of somatic growth: size increased up to an age of 30 months and then dropped steeply to a negligible level after 54 months. Conversely, in the less exploited populations, initial growth was slower but remained at a sustained level within the limits of individual longevity. With reference to available data on sexual maturation and reproductive output in harvested Varanus niloticus, these results suggest that rapid growth and early sexual maturity both contribute to a demographic accommodation in exploited monitor populations.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.