Pollution of streams generally reduces the diversity of Trichoptera (see fig. 16.7), and several other groups of stream insects, by reducing both species richness and species evenness. Why? 11eb5b2e_b208_db4d_a06e_41ba41cdfe33_SM1235_00 Figure 16.7 Rank-abundance curves for caddisflies, order Trichoptera, of two aquatic habitats in northern Portugal (data courtesy of L. S. W. Terra).

Ecology 5th Edition by Manuel Molles

النسخة 5الرقم المعياري الدولي: 978-0070171688

Ecology 5th Edition by Manuel Molles

النسخة 5الرقم المعياري الدولي: 978-0070171688

تمرين 19

Pollution of streams generally reduces the diversity of Trichoptera (see fig. 16.7), and several other groups of stream insects, by reducing both species richness and species evenness. Why?

Figure 16.7 Rank-abundance curves for caddisflies, order Trichoptera, of two aquatic habitats in northern Portugal (data courtesy of L. S. W. Terra).

التوضيح

موثّق

The diversity of any species is explaine...