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The contribution of seed reproduction to population growth of S. halepense was studied on an 80-ha maize field in Rojas province, Buenos Aires during ...
Read moreWhen assessing the cause of population absence or decline, it is important to understand the relative effect of local, regional and global factors. In...
Read moreA study was carried out to test the hypothesis that food reductions caused by forest spraying with Lepidoptera-specific insecticides would affect Tenn...
Read moreLight limitation (induced by the canopy of Zea mays [maize] cv. Pioneer 3902) of reproduction in Amaranthus retroflexus and the allometric relationshi...
Read moreStreams collect runoff, heat, and sediment from their watersheds, making them highly vulnerable to anthropogenic disturbances such as urbanization and...
Read morePollination is a vital ecosystem service, which is endangered by the ongoing declines of pollinators. These declines also affect bumblebees (Bombus sp...
Read moreIn an ecological approach to risk assessment, population models may play an important role. The population dynamic models described take into account ...
Read moreSome subcortical insects have devastating effects on native tree communities in new ranges, despite benign interactions with their historical hosts. E...
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 more[See FA 34, 6805] From ring-count data from all known records of living and dead specimens over 70 yr old, the life-span of Juniperus communis was est...
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