In this paper, we established the exploitation of impulsive harvesting single autonomous population model by Logistic equation. By some special methods, we analysis the impulsive harvesting population equation and obtain existence, the explicit expression and global attractiveness of impulsive periodic solutions for constant yield harvest and proportional harvest. Then, we choose the maximum su...

Firearms hunting often is limited as a deer (Odocoileus spp.) management tool in urban and suburban areas due to firearms discharge ordinances, restrictive hunting laws, or public perception about firearms safety. Many states use bowhunters to manage overabundant deer populations in urban–suburban areas. Little information exists on the effectiveness of bowhunting as a deer management tool in d...

This review builds on the information presented in Hamilton and Austin (2002). The purposes are: 1) to identify and present information on the outstanding scientific and management issues involved in assuring that hunting does not represent a conservation threat to grizzly bear populations and, 2) to outline potential future directions that are under consideration for grizzly bear harvest manag...

This study investigates optimal catch of Barents Sea stocks, namely Northeast Arctic Cod and Capelin in multispecies ecosystem. We solve a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES are employed for model application. Among others, we also include sustainability constraint in the model that contributes towards ecosystem based ma...

One challenge facing today’s forest managers is how to preserve biological diversity while maintaining a competitive forest industry. These two objectives are frequently at odds. A new approach to landscape management in the Sub-Boreal Spruce (SBS) zone is suggested here. This approach calls for larger harvest units coupled with irregular boundaries, large leave areas outside the harvest zone, ...

The implementation of the revised national standard 1 (NS1) guidelines and annual catch limits (ACLs) — including the P-star (P*) approach to accounting for scientific uncertainty and the risk of overfishing — has added complexity to the harvest specifications setting process for this biennial cycle. Implementation of ACLs for the stock complexes has been particularly complicated. The Groundfis...

Forest management in Sweden can be characterized by even-aged silviculture heavily relying on three established harvest regimes: clearcutting, the seed-tree method, and the shelterwood system. Less intense, small-scale retention harvest systems such as single tree and group selection harvest are rarely used. In addition, natural regeneration dynamics without enrichment planting have barely been...

Chronic wasting disease (CWD) was discovered in free-ranging white-tailed deer (Odocoileus virginianus) in south-central Wisconsin in 2002. The current control method for CWD in the state is the harvest of deer from affected areas to reduce population density and lower CWD transmission. We used spatial regression methods to identify factors associated with deer harvest across south-central Wisc...

Most forests are exposed to anthropogenic management activities that affect tree species composition and natural ecosystem processes. Changes in ecosystem processes such as herbivory depend on management intensity, and on regional environmental conditions and species pools. Whereas influences of specific forest management measures have already been addressed for different herbivore taxa on a lo...