TY - JOUR
T1 - The Density of Active Burrows of Plateau Pika in Relation to Biomass and
Allocation in the Alpine Meadow Ecosystems of the Tibetan Plateau
AU - Sun, Feida AU - Chen, Wenye AU - Qing, Ye AU - Liu, Lin AU - Liu, Wei
JO - Journal of Animal and Veterinary Advances
VL - 13
IS - 9
SP - 598
EP - 607
PY - 2014
DA - 2001/08/19
SN - 1680-5593
DO - javaa.2014.598.607
UR - https://makhillpublications.co/view-article.php?doi=javaa.2014.598.607
KW - Huffman encoding steganographic
KW -DNA cryptography
KW -Threshold secret sharing
KW -algorithm
KW -animal image processing
AB - Understanding the relationships between degrees of Plateau pika density and
plants biomass is
essential for improving the management of pika populations in alpine meadow
ecosystems. Twelve survey
sites with active burrow of plateau pika were classified into four degrees of
density: approximately zero-density,
low-density, medium-density and high-density to evaluate pika populations and
biomass allocation
interactions. The results revealed that plant composition, overall vegetation
height and cover, dominant species
were significantly different among the four sites. Additionally, plant functional
groups, aboveground,
belowground and total biomass, root:shoot ratios and the proportion of living
roots were greatest at
the zero-density site and those at the medium-density site were the lowest.
Researchers postulate that pika
activities may not be the source of the differences but a symptom of grassland
degradation. As such, a
reduction of livestock numbers, a variable rotational grazing system, restorative
management techniques and
community participation in co-management of the meadows are likely to effectively
improve grassland
productivity and deter pika outbreaks. Further, pika population fluctuations
should be monitored and when the
population exceeds the economic threshold of low-density (110 pikas or/and 512
active burrows ha-1) or
reaches high-density (200 pikas or/and 1360 active burrows ha-1) integrated
management strategies should be
implemented to protect damage.
ER -