Multiproxy analysis of clay sources and pottery sherds to elucidate the provenance of archaeological pottery in the Characato region, Córdoba, Argentina

Journal of Archaeological Science Reports, Journal Year: 2025, Volume and Issue: 62, P. 104993 - 104993

Published: Jan. 30, 2025

Language: Английский

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Integrating Restoration Practices With Productive Activities to Promote the Sustainable Management of Dry Forests Devoted to Livestock Raising

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

ABSTRACT Livestock raising provides a livelihood for millions of people who inhabit forests worldwide. However, browsing and trampling can disrupt the regeneration tree species, compromising persistence native in long term. Therefore, this study, we assess low‐cost restoration practices compatible with livestock production. Specifically, tested effect thorny branch protection on survival growth natural nursery‐grown saplings Lithraea molleoides . Additionally, evaluated hydrogel application protected unprotected L. saplings. Finally, compared versus In three fields under different grazing pressures, marked 105 seedlings < 40 cm height (we 69, whereas 36 remained unprotected). Also, transplanted 120 > 70 that were randomly assigned to four treatments (protected‐with‐ without‐hydrogel; unprotected‐with‐ without‐hydrogel). The branches facilitated efficiency practice depended pressure, being more effective field lower pressure. Hydrogel addition did not affect or growth, suggesting our study system main filter is cattle trampling. protecting naturally recruited individuals was than assessed allows combining restoring producing activities rather separating them, thereby adapting management objectives land owners incorporating human needs plans.

Language: Английский

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Enhancing the performance of native tree plantings in a seasonally dry mountain forest: the effects of elevation, irrigation and herbaceous cover

Restoration Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Mountain forests have been extensively degraded by human activities, making their conservation and restoration urgent. In subtropical dry mountain forests, successful planting is conditioned seasonal temperature precipitation patterns, variation with elevation, interactions co‐occurring vegetation. We studied the effects of elevation (700 1,200 m asl), irrigation (with without), herbaceous plant cover on performance native Lithraea molleoides saplings. After 2 years, survival was significantly higher at (32%) than 700 (16%), whereas had no significant effect. Increased enhanced low (from 5 to 20%), but reduced high 80 20%). Stem growth declined over years due aerial die‐back in all treatments. stem across both treatments, a stronger effect (−2.91 cm) asl (−1.83 cm). Unexpectedly, elevations, freezing temperatures were lower, number days greater hindering sapling performance. Our results suggest that stress, rather water deficit, appears be more limiting factor for L. saplings elevation. Microsite selection should consider cover, which differentially affects each

Language: Английский

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Asistiendo a la reintroducción de vizcachas (Lagostomus maximus): ¿Cómo aumentar el área de pastoreo seguro?

Ecología Austral, Journal Year: 2023, Volume and Issue: 33(1), P. 020 - 029

Published: Jan. 1, 2023

The reintroduction of fossorial mammals could be limited by the availability satellite burrows that provide refuge from predators while foraging away their permanent burrows, and short grasses. In order to generate information assist in vizcachas (Lagostomus maximus), we asked: 1) what type burrow do they accept based on complexity, entrance size distance burrows?, 2) how did provision mowing affect range? We carried out study Sierras Cordoba, Argentina, with 13 transferred two adaptation pens equipped burrows. mowed part vegetation around dug 14 types: simple only a tunnel, complex tunnel underground chamber. Burrows were situated between 1 16 m pens. For six months evaluated occupancy. also counted feces, estimated bare soil, height 15-m-long transects originating entrances highly used which distributed sectors. Occupancy was 2 67% for respectively, negatively related size. There no relationship occupancy Transect sampling showed 91% pellets within 4 or preferred cut uncut grass. conclude building will increase secure range translocated vizcachas.

Language: Английский

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Avance de la frontera urbana a expensas de bosques nativos en diferentes categorías de protección en el valle de Traslasierra, Córdoba (Argentina)

Boletín de la Sociedad Argentina de Botánica, Journal Year: 2024, Volume and Issue: 59(1)

Published: March 8, 2024

Introducción y objetivos: El avance de la frontera urbana ha causado pérdidade ecosistemas naturales. En el sector serrano del valle Traslasierra (Córdoba,centro Argentina), población aumentó en los últimos años por lo que este trabajo analizamos urbanización relación a vegetación nativa, fragilidad ambiental categoría conservación según Ley 26.331 (“Ley bosques”) dos municipios: Villa Las Rosas (VLR) San Javier-Yacanto (SJY).M&M: A través imágenes satelitales georreferenciamos todas las edificacionesprevias posteriores sanción bosques para VLR SJY. Además,analizamos tipo vegetación, proximidad cursos/cuerpos agua, lapendiente terreno se ubicaron lasedificaciones aparecieron hasta 15 después promulgación bosques.Resultados: ambos municipios número edificaciones duplicó durante período estudio. Más 80% avanzó sobre comunidades boscosas, menos 15% ribera más mitad localizó terrenos inclinados o muy inclinados. Finalmente, proporción construcciones ubicadas áreas alto valor incrementó luego bosques.Conclusiones: nativos podríadeberse escasa regulación nivel municipal usos suelo, lapromoción turismo, migración urbano-rural.

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Uncoupled flowering and fruiting phenology as the strategy of non-native invasive woody species in seasonally dry ecosystems

Biological Invasions, Journal Year: 2022, Volume and Issue: 25(2), P. 365 - 377

Published: Oct. 2, 2022

Language: Английский

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Megaincendios 2020 en Córdoba: Incidencia del fuego en áreas de valor ecológico y socioeconómico

Ecología Austral, Journal Year: 2023, Volume and Issue: 33(1), P. 136 - 151

Published: Feb. 1, 2023

In 2020, the Sierras of Córdoba suffered most extreme fire season in recent collective memory, causing severe ecological and socioeconomic damage. this study, we mapped fires 2020 using Sentinel 2 imagery, compared with historical statistics from 1987-2019 terms number fires, burned area, size distribution frequency. Additionally, analyzed incidence areas value (protected natural [PNA], priority for biodiversity conservation [CPA] native forests protected by Federal Law [#26331/07]) (productive residential lands, considering their tax value). nearly 291866 ha —becoming second largest area 34 years—, a record 5 megafires (≥10000 ha). Many had return intervals 3 to 9 years on average, constituting as hotspot regions our study area. Flames affected more than 5% PNA, 12% CPA federal law. Fires mainly rural areas, lesser extent, urban lands values AR$8677 24592 million, respectively. Extreme drought fuel availability were determinants occurrence megafires, while pandemic lockdown suggests that not set negligent inhabitants. The damages caused possibility similar scenarios future require policies towards an integral management issue province.

Language: Английский

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Ligustrum lucidum invasion alters the soil water dynamic in a seasonally multi-specific dry forest

Forest Ecology and Management, Journal Year: 2023, Volume and Issue: 549, P. 121493 - 121493

Published: Oct. 20, 2023

Language: Английский

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Setting large- and medium-sized mammal restoration goals in a last mountain Chaco remnant from central Argentina

Ecological Processes, Journal Year: 2023, Volume and Issue: 12(1)

Published: April 26, 2023

Abstract Background Setting large- and medium-sized wild mammal (≥ 2 kg) restoration goals is important due to their role as ecosystem engineers generalized numeric reductions. However, determining very challenging difficulties in obtaining data on current density unclear information what values should be used a reference. Here we chose 154 ha conservation area within one of the last remnants mountainous Chaco from central Argentina. We suspected that extensive unreported defaunation had occurred past human pressure introduction non-native mammals. To conduct analyses, simplified technique integrates methods rangeland ecological sciences. Results Eight native species including only herbivore species, four three were detected during 6113 camera trap days. known cattle densities estimated by droppings direct counts, together with relative abundance indexes obtained photos calculate other correcting for size. Densities least most abundant 0.2 1.33 individuals km −2 , respectively; 0.03 5.00 respectively. Native represented 0.8% 99.2%, respectively, biomass estimates. Reference biomass, net primary productivity, 68 times higher than study (3179 vs. 46.5 kg ). Conclusions There an urgent need increase mammals, special emphasis richness, while numbers must reduced. As are widespread large portions globe there lot experience estimating abundances, ratio method extrapolating mammals could facilitate small defaunated areas, where traditional not feasible when target get low.

Language: Английский

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Galling insect communities mediate the effects of fire on their associated parasitoid communities

Insect Conservation and Diversity, Journal Year: 2023, Volume and Issue: 16(6), P. 817 - 827

Published: Aug. 6, 2023

Abstract Understanding fire effects on multitrophic levels is critical to the context of changes in regime and climate. Insects located at higher trophic levels, like parasitoids, are more vulnerable habitat than insect herbivores because they need well‐established populations their hosts survive. Currently, parasitoids interactions with unknown. Our aim was study abundance, richness species composition, as well food web structure a system involving galling insects under different scenarios. We asked whether potential composition parasitoid communities explained by galled plant insects, how affects insect–parasitoid webs. The highest found 9 years after scenario, whereas abundance not affected fire. scenario from that unburned 3 Parasitoid were modulated communities. Vulnerability significantly scenarios, but it increased increasing network size. Fire community through host Differences exclusivity scenarios diet specialisation may explain patterns found. supports evidence creates habitats heterogeneous availability shaping communities, bottom‐up effect Additionally, burned areas recorded unique interactions.

Language: Английский

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