Artigos

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Nitraria is a halophytic taxon (i.e., adapted to saline environments) that belongs to the plant family Nitrariaceae and is distributed from the Mediterranean, across Asia into the south-eastern tip of Australia. This taxon is thought to have originated in Asia during the Paleogene (66–23 Ma), alongs…

Species distribution modelling (SDM) has been applied to multiple bee species to examine how they may respond to future climate change. Those studies indicate a variety of likely responses to a warming climate. No SDM approaches, however, have been undertaken for arid‐adapted bees, despite their eno…

1.The ability of vegetation to ameliorate or exacerbate environmental extremes can generate feedbacks that mediate the distribution of biomes. It has been suggested that feedbacks between vegetation and frost damage may be important for maintaining savanna, particularly at the edge of the tropics. 2…

The analysis of chemical elements in the barks of trees is an alternative procedure to access spatial heterogeneity of traffic related air pollution. However, the role of tree species in the characterization of the variability of airborne pollution is poorly known. We present an observational study …

A detailed review of historical literature and museum data revealed that flathead catfish were not historically native in the Great Lakes Basin, with the possible exception of a relict population in Lake Erie. The species has invaded Lake Erie, Lake St. Clair, Lake Huron, nearly all drainages in Mic…

Viable populations of two remarkable Coleoptera species – Cucujus cinnaberinus (Cucujidae) and Metoecus paradoxus (Rhipiphoridae) are reported for the first time from the Republic of Karelia (Russia). Cucujus cinnaberinus is a threatened species in northern Europe while Metoecus paradoxus is a wides…

Climate oscillations have left a significant impact on the patterns of genetic diversity observed in numerous taxa. In this study, we examine the effect of Quaternary climate instability on population genetic variability of a bumble bee pollinator species, Bombus huntii in western North America. Ple…

The root of understanding speciation lies in determining the forces which drive it. In many closely-related species, including Sphyrapicus varius, S. nuchalis, and S. ruber, it is assumed that speciation occurred due to isolation in multiple Pleistocene refugia. We used genetic data from 457 samples…

Earthworms in the family Lumbricidae in Alaska, which are known from coastal regions, primarily in south-central and south-eastern Alaska, are thought to be entirely non-native and have been shown to negatively impact previously earthworm-free ecosystems in study regions outside of Alaska. Despite o…

We investigated the influence of postglacial population expansion on the genetic structure of reproductively isolated populations that come into secondary contact and produce hybrid zones. We tested migratory behaviour to explain geographical patterns of genetic diversity and phylogeographical struc…