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Back from the Collapse
Back from the Collapse is a clarion call for restoring one
of North America's most underappreciated and overlooked ecosystems:
the grasslands of the Great Plains. This region has been called
America's Serengeti in recognition of its historically
extraordinary abundance of wildlife. Since Euro-American
colonization, however, populations of at least twenty-four species
of Great Plains wildlife have collapsed-from pallid sturgeon and
burrowing owls to all major mammals, including bison and grizzly
bears. In response to this incalculable loss, Curtis H. Freese and
other conservationists founded American Prairie, a nonprofit
organization with the mission of supporting the region's native
wildlife by establishing a 3.2-million-acre reserve on the plains
of eastern Montana, one of the most intact and highest-priority
areas for biodiversity conservation in the Great Plains. In
Back from the Collapse Freese explores the evolutionary
history of the region's ecosystem over millions of years, as it
transitioned from subtropical forests to the edge of an ice sheet
to today's prairies. He details the eventual species collapse and
American Prairie's work to restore the habitat and wildlife,
efforts described by National Geographic as \"one of the
most ambitious conservation projects in American history.\"
eBook
Predicting the potential distribution of the invasive species, Ophelimus maskelli , under current and future climate conditions
Invasive species pose a threat to ecosystems and humans worldwide, which is exacerbated by climate change, causing the expansion of species distributions. Ophelimus maskelli (Ashmead) (Hymenoptera: Eulophidae) causes leaf drying and shedding in eucalyptus trees, forming blister-like galls that negatively impact the growth of the trees. Closterocerus chamaeleon (Hymenoptera: Eulophidae) is a recognized parasitoid of O. maskelli. This study used the MaxEnt and CLIMEX models to predict the potential distribution under current and future climate scenarios for O. maskelli and its natural enemy, C. chamaeleon.The MaxEnt model result indicated that isothermality was the most critical factor predicting the distribution of O. maskelli, while the mean temperature of the driest quarter was the most critical factor predicting the distribution of C. chamaeleon. Under current climate conditions, the CLIMEX model predicted a wider potential distribution for O. maskelli and a smaller distribution for C. chamaeleon than the MaxEnt model. MaxEnt and CLIMEX prediction results indicated that South America and Africa were suitable for O. maskelli and C. chamaeleon. The MaxEnt model indicated that under SSP245 climate conditions, the potentially suitable regions for these species expanded, while under the SSP126 climate scenario, the region contracted significantly. The CLIMEX model indicated that under the A1B and A2 climate scenarios, the marginally suitable areas increased, while the moderately and highly suitable areas decreased. This study provides a theoretical basis for creating early monitoring, quarantine, and control methods for invasive pests. Key words: model optimization, ecological niche models, ensemble modeling, CLIMEX
Journal Article
A New Demodecidae Mite , an Invasive Species in Europe
Mites from the Demodecidae family are specific skin parasites of mammals and typically accompany their hosts within their natural geographic range. Monitoring the occurrence of these parasites in mammals expanding into new areas is of particular interest. Currently, the raccoon, an American carnivoran considered an alien and invasive species in Europe, is under study. Demodex procyonis sp. nov. has been described in individuals from Poland and appears to be identical to an unknown species of demodecid mite found in this host in its native range in the USA. This confirms the possibility of maintaining the natural parasitofauna typical of the host, as well as the introduction and possible spread of parasites to new regions.
Journal Article
Independent introductions of hedgehogs to the North and South Island of New Zealand
Documents four pre-1900 shipments of the European hedgehog (Erinaceus europaeus) to the North Island, thereby confirming colonisation of the North Island independent of that of the South Island. Reports on several relocations from established populations in Canterbury (South Island) to regions on the North Island, and none in the opposite direction. Illustrates the importance of linking observational and molecular data with historical records when interpreting the introduction pathways of introduced species. Source: National Library of New Zealand Te Puna Matauranga o Aotearoa, licensed by the Department of Internal Affairs for re-use under the Creative Commons Attribution 3.0 New Zealand Licence.
Journal Article
Geneticists unravel secrets of super-invasive crayfish
DNA analysis suggests the self-cloning species is a genetic hybrid that emerged in an aquarium in the 1990s.
Journal Article
RED SWAMP CRAYFISH
Invasive species are a global threat to biodiversity, and their introduction can have large economic and ecological consequences. Red swamp crayfish (Procambarus clarkii) are known to be highly invasive and can alter ecosystem structure and function. We document a recent occurrence of P. clarkii in a Pecos River tributary, New Mexico, following removal of common carp (Cyprinus carpio), another highly invasive species, from recently restored aquatic habitat.
Journal Article
