There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
05-04-2019, 03:05 PM( This post was last modified: 05-04-2019, 03:07 PM by Arctotherium )
[quote='Shadow' pid='81433' dateline='1556956312']
One study about American lions.
Quote: Body Mass
Calculations of body mass were performed as specified in the methods. Results differ by method and by element (Table 5B). Van Valkenburgh’s (1990) regression of m1 APD on body mass appears to be the most reliable, as it most closely approximates the average of all methods. Overall, the smallest body mass value for female Panthera atrox is 89 kg and the largest is 262 kg; male values are 156 kg and 457 kg. The overall average is 177 kg for females and 247 kg for males. Males are thus estimated to be 1.40 times larger than females. We determined a mean weight of 178 kg for wild P. leo males and 141 kg for females using recent data from Sunquist and Sunquist (2002) and established values from the body mass literature (Van Valkenburgh, 1990) as shown in Table 5B. The average determination using these methods yields extant males 1.26 times larger than females. As the underlying measurements are significantly different between sexes, it is no surprise that the calculated body weights for P. atrox are also significantly different between sexes (ANOVA p<.0001 in each case), as shown in the bivariate plot of body mass estimates in Figure 4.