Different times, same story: Native forest loss and landscape homogenization in three physiographical areas of south-central of Chile

2015 ◽  
Vol 60 ◽  
pp. 20-28 ◽  
Author(s):  
Alejandro Miranda ◽  
Adison Altamirano ◽  
Luis Cayuela ◽  
Francoise Pincheira ◽  
Antonio Lara
Keyword(s):  
Forest Loss ◽  
Native Forest ◽  
South Central ◽  
Landscape Homogenization

Effect of plantation clearcutting on carnivore presence in industrial forest landscapes in south-central Chile

Mammalia ◽  
2019 ◽  
Vol 83 (2) ◽  
pp. 115-124
Author(s):  
Sandra P. Escudero-Páez ◽  
Esteban Botero-Delgadillo ◽  
Cristián F. Estades
Keyword(s):  
Puma Concolor ◽  
Management Strategies ◽  
Domestic Cat ◽  
Pine Plantations ◽  
Domestic Dog ◽  
Native Forest ◽  
Canis Lupus Familiaris ◽  
Central Chile ◽  
South Central ◽  
The Impact

Abstract Information on how wildlife is affected by pine plantation clearcutting is relevant for designing management strategies to promote biodiversity conservation in productive systems. By comparing the number of records of carnivores in a mosaic of pine plantations and native forest remnants before and after pine harvesting, we assessed the effect of plantation clearcutting on carnivore presence in ten sampling areas in Central Chile. We also included a number of covariates to account for their potential confounding effects, for example, the distance between each site and the nearesting human settlement and vegetation cover. A total of 10 species were observed, but no negative effect of clearcutting on carnivore presence was detected. Only the culpeo fox (Lycalopex culpaeus) responded positively to the harvesting of pine plantations. The threatened kodkod (Leopardus guigna) was absent in clearcut areas and the number of records increased in forests or plantations with a dense understorey. The domestic dog (Canis lupus familiaris) responded positively to human settlements and seems to prefer more open areas. The number of records for the Puma (Puma concolor) and the domestic cat (Felis silvestris catus) was too few, and hence, we could not make any inference regarding these two species. The other species recorded showed different responses to one or more of the included covariates. Although our results showed that the recording of some species could change in the short term after pine harvesting, future studies should assess the impact of clearcutting at a much higher scale, both in terms of space and time.

scholarly journals Rediscovery of the Cherry-throated Tanager Nemosia rourei in southern Espírito Santo, Brazil

2000 ◽  
Vol 10 (2) ◽  
pp. 97-108 ◽  
Author(s):  
Claudia Bauer ◽  
José Fernando Pacheco ◽  
Ana Cristina Venturini ◽  
Bret M. Whitney
Keyword(s):  
Montane Forest ◽  
Small Population ◽  
Native Forest ◽  
Single Individual ◽  
Espírito Santo ◽  
South Central ◽  
Property Owners ◽  
Espirito Santo ◽  
Privately Owned ◽  
Biological Reserve

We report the rediscovery of the Cherry-throated Tanager Nemosia rourei in southern Espírito Santo, Brazil, in February 1998, and the first substantive observations of its behaviour, vocalizations and other aspects of its natural history. Approximately 10 individuals, occasionally in groups of up to five birds, were located in humid montane forest at 1,100 m a.s.l. at the privately owned “Fazenda Pindobas IV” (20°19′S, 41°17′W). This small population appears to be safe, as the property owners are preserving the remaining native forest there, and hope soon to register the land as a Private Natural Heritage Reserve (RPPN). The species probably also occurs at similar elevations on neighbouring fazendas. Past reports of the species are reviewed, and the accuracy of the type locality, “Muriaé, Minas Gerais” is re-evaluated. As a result, we suggest that our locality of rediscovery, Jatibocas, where Helmut Sick surely saw a group of eight birds in August 1941, and the Nova Lombardia (= Augusto Ruschi) Biological Reserve, where a single individual was certainly sighted by Derek Scott and others in October 1995, all in south-central Espírito Santo, be considered the only confirmed points of occurrence of the Cherry-throated Tanager.

Invasion of glossy privet (Ligustrum lucidum) and native forest loss in the Sierras Chicas of Córdoba, Argentina

2010 ◽  
Vol 12 (9) ◽  
pp. 3261-3275 ◽  
Author(s):  
Laura E. Hoyos ◽  
Gregorio I. Gavier-Pizarro ◽  
Tobias Kuemmerle ◽  
Enrique H. Bucher ◽  
Volker C. Radeloff ◽  
...  
Keyword(s):  
Forest Loss ◽  
Native Forest ◽  
Ligustrum Lucidum ◽  
Glossy Privet

Native forest loss in the Chilean biodiversity hotspot: revealing the evidence

2016 ◽  
Vol 17 (1) ◽  
pp. 285-297 ◽  
Author(s):  
Alejandro Miranda ◽  
Adison Altamirano ◽  
Luis Cayuela ◽  
Antonio Lara ◽  
Mauro González
Keyword(s):  
Biodiversity Hotspot ◽  
Forest Loss ◽  
Native Forest

scholarly journals Effect of Exotic Fast-Growing Forest Plantations on Water Yield in South-Central Chilean Watersheds: a Review

2021 ◽  
Author(s):  
Yerko Castillo ◽  
Carlos Oyarzun
Keyword(s):  
Pinus Radiata ◽  
Forest Cover ◽  
Water Yield ◽  
Forest Plantations ◽  
Native Forest ◽  
Spatial And Temporal Scales ◽  
Fast Growing ◽  
South Central ◽  
Forest Coverage ◽  
Experimental Plots

Water supply is one of the largest and most valued ecosystem services from forests. This paper presents a systematization of scientific studies about the effects generated by exotic fast-growing forest plantations of Pinus radiata D. Don and of Eucalyptus spp. on water yield in south-central Chilean watersheds (33 - 41ºS), at different spatial and temporal scales. We compiled scientific studies that have at least one year of observations on small and large catchments and experimental plots. Studies in experimental plots of Pinus radiata plantations show that annual evapotranspiration increase from south (40° S) to north (33° S), while in this northernmost site almost the entire incoming precipitation was evapotranspired, and the percolated water was negligible. Studies of water balance in small catchments document a negative linear relationship between total streamflow and forest plantations coverage. Catchments with forest coverage of Pinus or Eucalyptus spp. store less water than catchments with mixed species, mainly due to high interception loss, more net evapotranspiration and reduced percolation. Forest management can alter the accumulation of water in the catchment (soil and groundwater) and forest cover is the fundamental factor in the dynamics water accumulation. Long-term studies focused on changes in forest coverage from native forest to forest plantations in large catchments located in the Mediterranean area (33 - 38º S) of Chile show a sustained reduction in water yield, especially during summertime.

scholarly journals Hidden destruction of older forests threatens Brazil’s Atlantic Forest and challenges restoration programs

2021 ◽  
Vol 7 (4) ◽  
pp. eabc4547
Author(s):  
Marcos R. Rosa ◽  
Pedro H. S. Brancalion ◽  
Renato Crouzeilles ◽  
Leandro R. Tambosi ◽  
Pedro R. Piffer ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Atlantic Forest ◽  
Forest Cover ◽  
Forest Loss ◽  
Native Forest ◽  
Marginal Lands ◽  
Annual Basis ◽  
Native Forests ◽  
Expected Benefits ◽  
Mechanized Agriculture

Understanding the dynamics of native forest loss and gain is critical for biodiversity conservation and ecosystem services, especially in regions experiencing intense forest transformations. We quantified native forest cover dynamics on an annual basis from 1990 to 2017 in Brazil’s Atlantic Forest. Despite the relative stability of native forest cover during this period (~28 Mha), the ongoing loss of older native forests, mostly on flatter terrains, have been hidden by the increasing gain of younger native forest cover, mostly on marginal lands for mechanized agriculture. Changes in native forest cover and its spatial distribution increased forest isolation in 36.4% of the landscapes. The clearance of older forests associated with the recut of 27% of younger forests has resulted in a progressive rejuvenation of the native forest cover. We highlight the need to include native forest spatiotemporal dynamics into restoration programs to better estimate their expected benefits and unexpected problems.

scholarly journals Modelling the Effects of Changes in Forest Cover and Climate on Hydrology of Headwater Catchments in South-Central Chile

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1828
Author(s):  
Guillermo Barrientos ◽  
Albert Herrero ◽  
Andrés Iroumé ◽  
Oscar Mardones ◽  
Ramon J. Batalla
Keyword(s):  
Forest Cover ◽  
Geographical Area ◽  
Change Scenario ◽  
Native Forest ◽  
Land Uses ◽  
Central Chile ◽  
Partial Harvest ◽  
South Central ◽  
Climatic Scenarios ◽  
The Impact

This study analyses the changes in the runoff of forested experimental catchments in south-central Chile, to determine to what extent observed trends can be attributed to effects of intensive forestry and/or climate change. For this, we applied the distributed TETIS® model to eight catchments (7.1−413.6 ha) representative of the land uses and forestry activities in this geographical area. Rainfall and runoff data collected between 2008 and 2015 were used for modelling calibration and validation. Simulation of three land uses (current cover, partial harvest and native forest) and 25 combinations of climatic scenarios (percentage increases or decreases of up to 20% of rainfall and evapotranspiration relative to the no-change scenario applied to input series) were used in each calibration. We found that changes in land use and climate had contrasting effects on runoff. Smaller catchments affected by the driest climatic scenarios experienced higher runoff when the forest cover was lower than under full forest cover (plantations or native forests). In contrast, larger catchments under all climatic scenarios yielded higher runoff below the full forest cover than under partial harvest and native forest. This suggests that runoff can be influenced, to a great extent, by rainfall decrease and evapotranspiration increase, with the model predicting up to a 60% decrease in runoff yield for the dry’s climatic scenario. This study proves to be relevant to inform ongoing discussions related to forest management in Chile, and is intended to minimize the impact of forest cover on runoff yield under uncertain climatic scenarios.

Species Diversity and Assemblages of Cerambycidae in the Aftermath of the Emerald Ash Borer (Coleoptera: Buptrestidae) Invasion in Riparian Forests of Southern Michigan

2020 ◽  
Vol 49 (2) ◽  
pp. 391-404 ◽  
Author(s):  
Patrick J Engelken ◽  
Deborah G McCullough
Keyword(s):  
Riparian Forest ◽  
Woody Debris ◽  
Emerald Ash Borer ◽  
Basal Area ◽  
Agrilus Planipennis ◽  
Species Assemblages ◽  
Native Forest ◽  
Growing Seasons ◽  
South Central ◽  
Forest Sites

Abstract Extensive ash (Fraxinus spp.) mortality has been reported across much of the area in eastern North America invaded by emerald ash borer (Agrilus planipennis Fairmaire), but indirect effects of emerald ash borer invasion on native forest insects are not well-studied. We assessed cerambycid beetle (Coleoptera: Cerambycidae) species captured in baited cross-vane panel traps during the 2017 and 2018 growing seasons. Traps were placed in 12 riparian forest sites distributed across three watersheds selected to represent the temporal gradient of the emerald ash borer invasion from southeastern to southwestern Michigan. Although ash species originally dominated overstory vegetation in all sites, >85% of ash basal area has been killed by emerald ash borer. We captured a total of 3,645 beetles representing 65 species and five subfamilies. Species assemblages in southeast sites, with the longest history of emerald ash borer invasion, differed from those in south central and southwest Michigan, which were similar. These differences were largely due to three species, which accounted for >60% of beetle captures in southeast Michigan. Associations among site-related variables and beetle captures indicated cerambycid species assemblages were associated most strongly with abundance and decay stage of coarse woody debris. During both years, >90% of cerambycid species were captured by mid-summer but seasonal activity differed among and within tribes. Numbers of beetles captured by canopy and ground traps were similar but species richness was higher in canopy traps than ground traps. Results suggest inputs of emerald ash borer-killed ash can have temporally lagged, secondary effects on cerambycid communities.

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