Since the species of the American pygmy shrew is so widespread, there are a variety of different threats to each population (ANHP, 2017). The species has a global ranking of G5 and a National ranking of N5 which list the species as secure with no apparent threats to survival (Gervis, 2015). Although, specific states have release reports of overlapping threats to smaller populations.
S1 states such as Alabama , Idaho, Massachusetts, and Wyoming are closely monitoring populations. Many of these populations are on public lands and are being maintained through each states Wildlife department (Czech, 2017). Some threats that have been listed are shifting habitat and pollution. Habitat shifting due to climate change and serve weather are of concern to the pygmy shrew (ANHP, 2017).
South Dakota (an S2 ranked state), grassland destruction are under major concern and are directly linked to the survival of the pygmy shrew populations. Grassland destruction has become more prevalent amount the state which directly destroys habits for pygmy shrews. Overgrazing, over use of pesticides, wind impacts, and noxious weeds are all a threat to grasslands with the Dakotas (Gervis, …show more content…
Many of the regions hat they inhabit has been converted from rural/agricultural land to urban areas. Not only does long development decrease the range of the pygmy shrew, it also increases predators such as feral cats and dogs. In North Carolina, controlled or prescribed fires has been shown to reduce the population densities of shrews. Fire reduce the thickness of leaf liter in a given area. Fire regimens also destroys canopy cover and removed debris. Reductions in leaf liter and debris have been associated with reductions in population sizes in S. hoyi (Greenberg et al., 2009). Fire regimens in the ares will alter habitat suitability and change the range of the
S1 states such as Alabama , Idaho, Massachusetts, and Wyoming are closely monitoring populations. Many of these populations are on public lands and are being maintained through each states Wildlife department (Czech, 2017). Some threats that have been listed are shifting habitat and pollution. Habitat shifting due to climate change and serve weather are of concern to the pygmy shrew (ANHP, 2017).
South Dakota (an S2 ranked state), grassland destruction are under major concern and are directly linked to the survival of the pygmy shrew populations. Grassland destruction has become more prevalent amount the state which directly destroys habits for pygmy shrews. Overgrazing, over use of pesticides, wind impacts, and noxious weeds are all a threat to grasslands with the Dakotas (Gervis, …show more content…
Many of the regions hat they inhabit has been converted from rural/agricultural land to urban areas. Not only does long development decrease the range of the pygmy shrew, it also increases predators such as feral cats and dogs. In North Carolina, controlled or prescribed fires has been shown to reduce the population densities of shrews. Fire reduce the thickness of leaf liter in a given area. Fire regimens also destroys canopy cover and removed debris. Reductions in leaf liter and debris have been associated with reductions in population sizes in S. hoyi (Greenberg et al., 2009). Fire regimens in the ares will alter habitat suitability and change the range of the