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Several environmental changes have occurred in the Sudan in the past; several are ongoing; and others are projected to happen in the future. The Sudan...
Read moreSimple models were developed to explore the interaction between the curculionid lucerne (Medicago sativa) pest Sitona discoideus and its introduced br...
Read moreThis study presents statistical methodology that uses spatial explanatory variables to improve simpler estimates of transition probabilities from cate...
Read moreRed-billed queleas Quelea quelea are major pests of small-grain crops throughout sub-Saharan Africa. When conditions permit, birds breed in vast colon...
Read more1. The nematode Steinernema feltiae has been developed commercially as a biocontrol agent and is successful in controlling sciarid flies in mushroom h...
Read moreHypericum perforatum, St John's wort, is an invasive perennial herb that is especially problematic on waste ground, roadsides, pastures and open woodl...
Read moreThe empirical study of forest ecosystem dynamics is difficult because of the longevity of trees. Many types of models were developed to assist with th...
Read moreParameter uncertainty challenges the use of matrix models because it violates key assumptions underlying elasticity analyses. We have developed a matr...
Read moreThe introduction and further spread of many alien species have been a result of trade and transport. Consequently, alien species are often found close...
Read moreThe extent to which the non-equilibrium persistent (NEP) model of rangeland vegetation dynamics applies to three distinct Mongolian rangeland ecosyste...
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