Effects of road infrastructure on forest value across a tri-national Amazonian frontier

Baraloto, Christopher; Alverga, Paula Palhares de Polari; Quispe, Sufer Báez; Barnes, Grenville; Chura, Nino Bejar; Silva, Izaias Brasil da; Castro, Wendeson; Souza, Harrison da; Moll, Iracema Elisabeth de Souza; Chilo, Jim Del Alcazar; Linares, Hugo Dueñas; Garate-Quispe, Jorge; Kenji, Dean; Marsik, Matthew; Medeiros, Herison; Murphy, Skya; Rockwell, Cara A.; Selaya, Galia; Shenkin, Alexander; Silveira, Marcos; Southworth, Jane; Colomo, Guido H. Vasquez; Perz, Stephen G.

doi:10.1016/j.biocon.2015.08.024

Cited by 20 publications

(17 citation statements)

References 43 publications

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“…and Dipteryx spp. The density of B. excelsa (1.5 stems ha -1 ), in our study, is in the same ranges as found in other similar studies that did not follow a random and stratified sampling (Peres et al 2003, Zuidema 2003, Nunes et al 2012, Baraloto et al 2015Vaca, unpublished data). Note that only 4 of the 41 plots in this study overlap with those reported by Zuidema (2003).…”

Section: Discussionsupporting

confidence: 90%

“…Rareness is a characteristic trait in Amazonian forests (Pitman et al 2001, Schulze et al 2008, Hubbell 2013. Our study suggests that rare species may be particularly vulnerable if these are affected by intensifying anthropogenic pressures such as selective logging , Dablin 2014, Baraloto et al 2015) and enhanced mortality due to climate change (Brienen et al 2015). Brazil prohibits the harvest of trees at abundances lower than 0.03 stems ha -1 (Schulze et al 2008).…”

Section: Discussionmentioning

confidence: 72%

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Economically important species dominate aboveground carbon storage in forests of southwestern Amazonia

Selaya¹,

Zuidema²,

Baraloto³

et al. 2017

E&S

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ABSTRACT. Tree species in tropical forests provide economically important goods and ecosystem services. In submontane forests of southwestern Amazonia, we investigated the degree to which tree species important for subsistence and trade contribute to aboveground carbon storage (AGC). We used 41 1-hectare plots to determine the species abundance, basal area, and AGC of stems > 10 cm diameter at breast height (dbh). Economically important taxa were classified using ethnobotanical studies and according to their stem density. These taxa (n = 263) accounted for 45% of total stems, 53% of total basal area, and 56% of total AGC, significantly more than taxa with minor or unknown uses (Welch test at p < 0.05). Taxa with 1-2 stems per hectare, or with fewer than 1 stem per hectare (common and rare) accounted for 35% of total AGC, more than the 22% accounted for by dominant taxa. High basal area had a greater impact on AGC than abundance in economic taxa because their populations are skewed to adult trees. Size in these taxa had a median dbh > 40 cm and few stems in regeneration classes of dbh < 10 to 20 cm (e.g., Bertholletia excelsa, Cariniana spp., Cedrelinga spp., Ceiba spp., Dipteryx spp.), whereas dominant Tetragastris spp., and Pseudolmedia spp. had most stems in low diameter classes and a median diameter of < 30 cm. Bertholletia excelsa, with 1.5 stems per hectare, showed the highest basal area of any species and accounted for 9% of AGC (11 Mg/ha), twice that of the second-ranking species. Our study shows that economic importance and carbon stocks in trees are closely linked in southwestern Amazonia. Unplanned harvests can disrupt synergistic dual roles altering carbon stocks temporally or permanently. Precautionary measures based on species ecology, demography, and regeneration traits should be at the forefront of REDD+ to reconcile maximum harvesting limits, biodiversity conservation, and sustainable forest management.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 72%

Economically important species dominate aboveground carbon storage in forests of southwestern Amazonia

Selaya¹,

Zuidema²,

Baraloto³

et al. 2017

E&S

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“…El primer grupo de 26 transectos (1-26 de Tabla 1) se ubicaron en la Zona de Amortiguamiento de la Reserva Tambopata, comunidades nativas y otras áreas protegidas, correspondiendo a 2 tipos de bosque (bosques de terraza alta y bosques de terraza inundable) (Monteagudo, 2014). El segundo grupo de 27 transectos (27-53 de Tabla 1) se ubicaron en el eje de la carretera interoceánica (< 9 km de distancia de la carretera), cuyos bosques se encuentran fuertemente presionados por actividades antropogénicas (Baraloto et al, 2015).…”

Section: Inventarios Botánicosunclassified

Influencia de la conservación de bosques en la diversidad y composición florística arbórea en el sureste de la Amazonía peruana

Linares

Valdeiglesias

Quispe

et al. 2020

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El objetivo del presente estudio fue de evaluar la influencia de la conservación de bosques en la diversidad y composición florística en Madre de Dios (Perú). Analizamos 53 transectos Gentry en bosques protegidos y no protegidos. Todos los individuos con un DAP ≥ 2,5 cm fueron registrados y se calculó los atributos florísticos de riqueza de especies, géneros, familias y diversidad. El ANOVA fue utilizado para la comparación de atributos florísticos y se utilizaron técnicas multivariadas para evaluar y representar la similitud florística. Un total de 915 especies fueron registradas, representadas en 11404 individuos, 329 géneros y 90 familias. La riqueza de especies encontradas en el presente estudio es inferior a otros estudios en la Amazonía Peruana. En los bosques protegidos la abundancia fue significativamente superior a los bosques no protegidos. En los bosques de terraza alta se encontraron una mayor riqueza y diversidad de especies que en los de terraza inundable. Interesantemente, no encontramos diferencias significativas en la riqueza y diversidad de especies entre los bosques de terraza alta protegidos y no protegidos (ANOVA, P<0,05), pero si encontramos diferencias significativas en la composición florística entre estos dos tipos de bosques (PERMANOVA, P<0,001). Estimamos que en Madre de Dios existen 1430±130 especies de árboles >2,5cm DAP.

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“…In their view, roads reduce the costs of spatial mobility, bringing services and economic development to less-economically developed areas (De Lancie 2008;Perz et al 2010;Pellegrina 2014). Opponents claim that road construction causes severe environmental impacts through increased deforestation, habitat loss, pollution, illegal hunting, and wildlife trade (Coffin 2007;Laurance et al 2014;Ahmed et al 2014;Baraloto et al 2015).…”

Section: Introductionmentioning

confidence: 99%

A Road to Conflict: Stakeholder’s and Social Network Analysis of the Media Portrayals of a Social-Environmental Conflict in Bolivia

Reyes‐García

Andrés-Conejero

Fernández‐Llamazares

et al. 2019

Society & Natural Resources

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NOTE: The publisher of this article permits self-archiving of the final draft of this article. Final draft corresponds to the last version of the article submitted to the publisher (i.e., the peer-reviewed and corrected version without the final publisher layout, also known as author's accepted manuscript). According to the University of Helsinki Principles of open publishing a full text copy of all scientific publications produced at the University is deposited into the digital repository HELDA via TUHAT.

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Effects of road infrastructure on forest value across a tri-national Amazonian frontier

Cited by 20 publications

References 43 publications

Economically important species dominate aboveground carbon storage in forests of southwestern Amazonia

Economically important species dominate aboveground carbon storage in forests of southwestern Amazonia

Influencia de la conservación de bosques en la diversidad y composición florística arbórea en el sureste de la Amazonía peruana

A Road to Conflict: Stakeholder’s and Social Network Analysis of the Media Portrayals of a Social-Environmental Conflict in Bolivia

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