Relationships between visual obstruction measurements and weight of grassland vegetation.

摘要: As part of a long-term study greater prairie chicken (Typanuchus cupido pinnatus) ecology in northeastern Kansas (Slade et al. 1965; Robe& 1966; Watt, 1969), an attempt was made to correlate movements and locations chickens with habitat types. In order accomplish this, the various types on 2,500-hectare grassland area had be described. Species composition alone could not provide all information necessary evaluate potential for chickens. Emlen (1956) indicated that vegetation screening efficiency density were as important species present describing avian habitats. Specifically, Hamerstrom (1957) stated height grass “clearly more than composition.” Various optical means have been used measure (Wight, 1938; Webb, 1942; Mossman, 1955).