Poor species-specific catch statistics hamper shark population assessments and fishery management.
Demand for housing in the urban areas is high, but construction has been hampered by population movement, high construction costs, shortage of land, and inadequate long-term financing.
Between the two inversion treatments, that with only top soil inversion was more successful, since species introduced by sod cuttings hampered the population growth of Jurinea.
While there have been advances, progress is hampered by population growth, widespread poverty, insufficient investments to address the problem and the biggest culprit: a lack of political will.
Hence, even while stringent environmental legislation, at a local, national and European level, aims at minimizing the negative effects of our modern society, there remains a need to be on the outlook for existing, new and emerging stressors that may hamper the general population's health.
Differences in LD levels between breeding populations hamper the transferability of marker effects from one breeding population to another, even when the linkage phases are identical.
Unlike most other epithelial cancers, a large proportion of NMSC are easily treated by physicians (e.g. by cryotherapy, currettage, diathermy or excision) without histological confirmation of the diagnosis (Green, 1992) hampering the population-based registration of these tumours via pathology departments by the cancer registry.
Drug development for ultra-rare diseases is challenging because small sample sizes and heterogeneous study populations hamper the ability of randomized, placebo-controlled trials with a single primary endpoint to demonstrate valid treatment effects.
Ongoing conflict can hamper access to populations for timely delivery of supplies and implementation of control measures during an outbreak.
We hypothesized that fly populations harboring a higher proportion of better protected variants (FS populations) should hamper fungal colonies to a higher degree than more vulnerable populations (UC populations).
