Identifies freshwater ecoregions that support globally outstanding biological diversity, assesses the types and immediacy of threats to North American ecoregions, identifies gaps in information that hamper an accurate evaluation of biodiversity, and provides a broad-scale framework for conservation activities.
The highest mountain in the Canadian Rocky Mountains is Mount Robson , at just over 3,900 m asl . This region is composed of folded sedimentary and volcanic strata and massive metamorphic rocks of Paleozoic and Mesozoic age .
This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine...
5 See also Olson et al. (2001) and Olson and Dinerstein (2002). See Lenton et al. (2008). 7 See Steffen et al. (2015). 6 Bibliography Balsiger, J., Prys, M., & Steinhoff, N. (2012). The nature and role of regional agreements in ...
... Aridland Springs in North America : Ecology and Conservation . Uni- versity of Arizona Press , Tuscon , pp . 127–157 . Hendrickson , D.A. , Tomelleri , J.R. , 2019. Native trout of Mexico : treasures of the Sierra Madre . In : Kershner ...
In U. imbecillis, the proportion of hermaphrodites and the relative allocation to each sex are highly variable among populations (Heard 1975; Kat 1983; Johnston et al. 1998), and populations range from predominantly outcrossing to ...
Aquat Sci 65:239–253 Vörösmarty CJ, McIntyre PB, Gessner MO, Dudgeon D, Prusevich A et al (2010) Global threats to human water security and biodiversity. Nature 467:555–561. doi:10.1038/nature09440 Williams M, Zalasiewicz J, Davies N, ...
... the Tramandaí river watershed Total number of species 1000 900 800 700 Median 25. 12 329 Fish Diversity and Conservation in a Neotropical Grassland Region 12.4 Fish Diversity Compared to Other Freshwater Ecoregions in South America.
The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and ...
A collection of articles on the ecology of North American desert springs, by authors from the fields of biology, botany, ichthyology, conservation, geology and law; and covering both the special traits of springs and the ways in which they ...
This timely work examines the doctrine of equitable allocation of transboundary water resources and how this norm can be incorporated into international law.