02891nas a2200193   4500008004100000245010300041210006900144260000800213300001200221490000800233520222500241653001702466653001802483653001802501653002202519100001802541700002302559856011502582       2002                        eng d00aEffects of forest fragmentation on the beetle assemblage at the relict forest of Fray Jorge, Chile0 aEffects of forest fragmentation on the beetle assemblage at the   cJul  a296-3060 v1323 aHabitat fragmentation is recognized as one of the main factors associated with species extinction and is particularly acute in South American forest habitats. In this study, we examined the effects of forest fragmentation on the beetle assemblage at the relict temperate forest of Fray Jorge (Chile). We evaluated the following hypotheses: (1) there is a strong edge effect, so that the number of beetle species and individuals increases away from the edge, towards the inner part of each fragment, (2) this pattern should be apparent in the larger fragments but not in the smaller ones, where edge effects are expected to be stronger, and (3) there should be a significant interaction between number of species/individuals found inside and outside fragments (i.e., in the matrix) and season, because of an increase in aridity and water stress during austral summer months. We found that the relationship between the number of individuals and number of species vs distance from the matrix towards the forest interior was affected by fragment size and season. In general, both number of species and individuals tended to increase from the matrix towards the forest edge and then either decrease, increase or maintain a constant level, depending on fragment size and season. The result of an ANOVA analysis, which used season, size, and position (inside vs outside fragments) as factors and number of individuals as the response variable, showed a significant effect of fragment size, position, and season and a significant interaction between fragment size and season, season and position, and size and position. ANOVA analysis using number of species as the response variable showed that area, season, and position all had significant effects. The results also showed a significant interaction between size and season and between season and position. Our results emphasize the existence of strong fragment-size and seasonal effects modulating both the response of beetles to fragmentation and their abundance and distribution in temperate areas. Thus, seasonal dynamic effects can be of paramount importance to demonstrate and understand the effect of habitat fragmentation upon arthropod assemblages in temperate areas.10aDung beetles10afragmentation10aSouth America10atemperate forests1 aBarbosa, Olga1 aMarquet, Pablo, A.  uhttps://scarabnet.myspecies.info/effects-forest-fragmentation-beetle-assemblage-relict-forest-fray-jorge-chile02805nas a2200337   4500008004100000245006500041210006500106260000800171300001200179490000600191520186300197653002302060653002002083653001702103653001702120653001802137653002402155653002502179653001302204653002202217653002202239653002702261653002102288653001902309100002302328700002602351700001802377700001802395700002002413856003402433       2002                        eng d00aVulnerability of South African animal taxa to climate change0 aVulnerability of South African animal taxa to climate change  cJul  a679-6930 v83 aThe responsiveness of South African fauna to climate change events is poorly documented and not routinely incorporated into regional conservation planning. We model the likely range alterations of a representative suite of 179 animal species to climate change brought about by the doubling of CO2 concentrations. This scenario is expected to cause a mean temperature increase of 2 degreesC. We applied a multivariate climate envelope approach and evaluated model performance using the most comprehensive bird data set. The results were encouraging, although model performance was inconsistent in the eastern coastal area of the country. The levels of climate change induced impacts on species ranges varied from little impact to local extinction. Some 17% of species expanded their ranges, 78% displayed range contraction (4-98%), 3% showed no response and 2% became locally extinct. The majority of range shifts (41%) were in an easterly direction, reflecting the east-west aridity gradient across the country. Species losses were highest in the west. Substantially smaller westward shifts were present in some eastern species. This may reflect a response to the strong altitudinal gradient in this region, or may be a model artifact. Species range change (composite measure reflecting range contraction and displacement) identified selected species that could act as climate change indicator taxa. Red-data and vulnerable species showed similar responses but were more likely to display range change (58% vs. 43% for all species). Predictions suggest that the flagship, Kruger National Park conservation area may loose up to 66% of the species included in this analysis. This highlights the extent of the predicted range shifts, and indicates why conflicts between conservation and other land uses are likely to escalate under conditions of climate change.10abeetles coleoptera10acommon fly belt10aconservation10aDung beetles10afragmentation10ageographical ranges10ahabitat availability10aland-use10aprotection status10arange contraction10asensed vegetation data10aspecies turnover10atsetse habitat1 aErasmus, B., F. N.1 aVan Jaarsveld, A., S.1 aChown, S., L.1 aKshatriya, M.1 aWessels, K., J.  u<Go to ISI>://000176055800007