ECOLOGICAL SUCCESSION. II 



TABLE XIV. 



HIGHER VERTEBRATES. 

 The fish are shown in Table XXI. page 17. 



; Numbers. 

 Name. 





if 



* 

 * 



1 / " i iita Lat * 



Rini,i f't i 



nnla Ag. ... * * 



sogtaphica Les * 



/';. u;/. J.V Raf * 



Hill ' .' ' ' ? 







I h> : 'lie muskrat is indicate*! !>y i; : h>li-. ii<'xi~. tt.uk-. 



I iiit ii'iiu- li.t\ Ijcen seen except in tin- "M-t p"i; 



with resjx'ct to tin- ages "I tin- pond- are -ho\\ n in 

 Table- IN. ! NI\'. Letters indicate ivl.tii\r abundance: l : 

 few; ( ommuii ; A - ahund.iin. The -i.tr i- n-ed t<> indi- 

 < .IN piv-i in \\ here relative abundance lia^ not been .iMvri.iitird. 

 l-i comparison, a fifth j)oiul (No. 30 U .idilrd ; tlii-- i- nldi-r ih.m 

 ill. others in rvery resfK'ct and coni.iin^ certain species <>' ini- 

 ["'M.iiirr i<> fi-li which are not found in .ui\ o! tin- ntlu-r--. 



I I >i-i ii imi of the Tables. The i.il-lr^ rcjur-cin nut <nl\ 

 nun Ii ..iidul ulleftinjj, but long e\]H-riniv \\itli the "inmuii 

 forms of the ponds. An inspect inn <>i tin- t.il>K-- -lu>\\ - ih.it tlu-rr 

 are <lilt< n u. es in the species in tin- dilh-n-in |)umU .ind ili.it tin- 

 dilN-n-in -, .tre correlated with tin- ages <>| tin- pund-. l-'m- ex- 

 ample, in the case of the let lie-. T.iMe IN., page 9, nmie <>t 

 tlie ~|iet ie- ul the youngest pund i- !i>iin<l in .ill <>t the pmnU and 

 iiuiic u|' tin- -pccies uf the ul<le-t i-> I'unnd in (he youngest. \- 



iillvK .1- \\e pass from the \ulll)^e-! to the oldest \\e lluli- 



tll. II 5] di-.ippear and are replaced l.y uther species. The 



same \\ill be seen to be true ul' the uther -ruiip-. A -imilar 

 relation i-> illustrated also wlu-re \\ e have been able to estimate 

 relatixi ibnndance. In -\\\^ cases the number i- greater in 

 the older ponds; in other.-, le in the older jiuiid- e. . 1 1 yullelti 

 Kni(kt-r!>txkfri, Table XII.. p ;.< [o). 



The ( -a -i -of the caddice \\urm> an<l uther ai|iiaii< insects which 

 are plat ( d in the water by the laying tfmale, i- u!" e-pecial inte: 

 as the iv-nllin^ distribution is jirobabK either a matter of 



