Demographic Monitoring of Astragalus Scaphoides At Sheep Corral Gulch Beaverhea
Demographic Monitoring of Astragalus Scaphoides At Sheep Corral Gulch Beaverhea
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06 0. 13 0. 61 0. 23 0. 27 0. 11 0. 35 10 » strong, and other factors, such as insolation and timing and duration of precipitation events, must also play a role.
Evidence from the frequency of scats indicates that large vertebrate grazers, including livestock, are not overly common at the Sheep Corral Gulch site compared to sites in Idaho (Table 4, Lesica and Elliott 1989). Most inflorescence predation was probably due to insects such as ants, tent caterpillars and cutworms (Lesica, pers. Obs. ...) rather than vertebrate grazers.
Conclusions In the Sheep Corral Gulch population of Astragalus scaphoides . Appreciable flowering and fruit-set occurs only every other year on average. Furthermore, predation of inflorescences may reduce fruit-set by 20-30%, and seed predators often reduce fecundity by an additional 24-33%. Nonetheless, the results of this study suggest that the A^ scaphoides population is viable and increasing in size.
Table 4. Frequency (per 100 l-m'^ quadrats) of feces of vertebrate grazers for Astragalus scaphoides population at Sheep Corral Gulch from 1986 to 1991 Frequency of Cattle 4 3 Droppings Frequency of Ungulate 2 Pellets Frequency of Rabbit 13 3 Droppings 12 Literature Cited Cabin, R.
What to read after Demographic Monitoring of Astragalus Scaphoides At Sheep Corral Gulch Beaverhea?
You can find similar books in the "Read Also" column, or choose other free books by Peter Lesica to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
06 0. 13 0. 61 0. 23 0. 27 0. 11 0. 35 10 » strong, and other factors, such as insolation and timing and duration of precipitation events, must also play a role.
Evidence from the frequency of scats indicates that large vertebrate grazers, including livestock, are not overly common at the Sheep Corral Gulch site compared to sites in Idaho (Table 4, Lesica and Elliott 1989). Most inflorescence predation was probably due to insects such as ants, tent caterpillars and cutworms (Lesica, pers. Obs. ...) rather than vertebrate grazers.
Conclusions In the Sheep Corral Gulch population of Astragalus scaphoides . Appreciable flowering and fruit-set occurs only every other year on average. Furthermore, predation of inflorescences may reduce fruit-set by 20-30%, and seed predators often reduce fecundity by an additional 24-33%. Nonetheless, the results of this study suggest that the A^ scaphoides population is viable and increasing in size.
Table 4. Frequency (per 100 l-m'^ quadrats) of feces of vertebrate grazers for Astragalus scaphoides population at Sheep Corral Gulch from 1986 to 1991 Frequency of Cattle 4 3 Droppings Frequency of Ungulate 2 Pellets Frequency of Rabbit 13 3 Droppings 12 Literature Cited Cabin, R.
What to read after Demographic Monitoring of Astragalus Scaphoides At Sheep Corral Gulch Beaverhea?
You can find similar books in the "Read Also" column, or choose other free books by Peter Lesica to read onlineMoreLess
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