Cambridge Grammar of English Hardback with cd-rom a comprehensive Guide

Existential there

148b

Existential there constructions are also regularly used instead of personal ones

(note also impersonal it in this example):

[marking and recapture refer here to capturing and marking animals for

scientific research]

The time lag between marking and first recapture was higher than the lag

between second and third recapture, which indicates a trauma caused by the

marking procedure. However,

there was no evidence

of any weight loss as

reported for other marking methods, and most of the tattooed animals did not

show any behaviour indicating irritation after being marked. 

It is concluded

that ear-tattooing, as an alternative to other methods of marking small

mammals, is useful even in the field.

(compare the more personal: However, I/we found no evidence …)

[endocrinology lecture]

So as the fluid fluxes through this segment of the nephron its osmotic

concentration goes from two ninety up to twelve hundred milliultinals per kilo

and then back down to one eighty milliultinals per kilo. Now

there are certain

things to note

as a consequence of that. 

(compare: We/you should note certain things as a …)

There

+ exist is also found in formal academic styles:

This is similar to cognitive knowledge, in which 

there exist universally valid

concepts to which each individual object could belong.