ESTIMATING SEA OTTER REPRODUCTIVE RATES

被引：11

作者：

EBERHARDT, LL ^{[1
]}

SCHNEIDER, KB ^{[1
]}

机构：

[1] ALASKA DEPT FISH & GAME, ANCHORAGE, AK 99502 USA

来源：

MARINE MAMMAL SCIENCE | 1994年 / 10卷 / 01期

关键词：

BIRTH INTERVALS; REPRODUCTION; SEA OTTERS; ENHYDRA-LUTRIS; SIMULATION;

D O I：

10.1111/j.1748-7692.1994.tb00387.x

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Sea otters may give birth in any month of the year, so obtaining reproductive races by observation is difficult. Reproductive rates may be estimated directly (births per otter-year observed) or by determining the time interval between births. Both methods give the same result for long sequences of observations, but field data are limited to shorter periods. Monte Carlo simulations were conducted to compare the two approach, and showed that the interval method overestimates true reproductive rates.

引用

页码：31 / 37

页数：7

共 5 条

[1] ASSESSING THE DYNAMICS OF WILD POPULATIONS [J].