The Transamazon Highway: Past, Present, Future

Walker, Robert; Perz, Stephen G.; Arima, Eugênio; Simmons, Cynthia

doi:10.1007/978-90-481-9920-4_33

Cited by 13 publications

(6 citation statements)

References 44 publications

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“…5,6 Given the established link between deforestation and infrastructure, especially for transportation, it is reasonable to question if a new wave of forest clearing will build, just as global warming begins to affect the region. [7][8][9][10][11] The present article addresses IIRSA in light of conservation concerns about a so-called ''tipping point,'' a magnitude of deforestation that compromises rainfall recycling, inducing a biome shift from moist tropical forest to tropical savanna, with dire conse-quences for biodiversity, carbon sequestration, climate regulation, and dependent agricultural systems. 9,[12][13][14] Because IIRSA is continental in scope, the article defines Amazonia as the river's entire watershed with an area of $7,000,000 km 2 , encompassing two biomes, the Amazonian Biome (tropical forest) and the Cerrado Biome (savanna).…”

Section: Introductionmentioning

confidence: 99%

Avoiding Amazonian Catastrophes: Prospects for Conservation in the 21st Century

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Avoiding Amazonian Catastrophes: Prospects for Conservation in the 21st Century

et al. 2019

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“…BR-230 is the famous Transamazonian highway linking the metropolitan regions of the city of Joa˜o Pessoa in Paraı´ba State (NE Brazil) with La´brea in Amazonas State (Amazon region) (Walker, Perz, Arima, & Simmons, 2011). Studies have shown that wild animals are trapped and heavily traded (by wildlife traffickers or by local residents of several nearby areas) along the BR-230 highway (Bonaudo, Le Pendu, Faure, & Quanz, 2005;RENCTAS, 2001;Sills et al, 2014;Smith, 1976), while the Transamazonian and BR-153 highways are probably the principal routes used for wildlife trafficking in Brazil (Hernandez & Carvalho, 2006).…”

Section: Study Areamentioning

confidence: 99%

Singing for Cages

Souto

Torres

Sousa

et al. 2017

Tropical Conservation Science

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Illegal bird-keeping and pet trade are some of the major threats to Neotropical birds. The aim of the present study was to detail aspects of the use and trade of wild Passeriformes as pets in an ecotonal zone of Caatinga-Cerrado domains in middlenorth of Brazil, a western subregion of northeastern (NE) Brazil which also is a road hub interconnecting this region to the Amazon and other Brazilian areas. Information on the use of avifauna was obtained through semistructured interviews with 61 bird-keepers or trappers and investigations in the municipal market of Floriano, Piauí State. Our results reveal that at least 39 passerine species are targeted as pets in surveyed areas. Based on Use-Value (UV) index, the main recorded species were Sporophila lineola, Charitospiza eucosma, Sporophila nigricollis, Sporophila plumbea, Paroaria dominicana, Sicalis flaveola, Gnorimopsar chopi, Sicalis columbiana, Mimus saturninus, and Turdus rufiventris. In general, younger respondents (<30 years old) trapping more species than older persons (!50 years old), as well as trappers engaged in wild pet trade explored a higher species richness by respondents. The regional bird market chain was typically performed outside municipal market of Floriano and facilitated by popularization of technological improvements (motorcycles, smartphones, and social media). New strategies urgently need to be developed to improve bird conservation, including establishment and maintenance of environmental education programs, media campaigns and development of a well-monitored system for captive breeding, and reproduction of wild birds exploited as pets.

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“…Model output replicates the same dynamic, where large ∆𝐵𝐴 !"#$. ' values follow the Trans-Amazonian highway 103 into the Amazon rainforest interior (Figs. 3a, S7), while the cerrado region tends to experience decreasing BA with fragmentation.…”

Section: Regional Scale and Population Fragmentation Impactsmentioning

confidence: 75%

Human land fragmentation drives tropical forest fires but dampens global burned area

Bowring,

Li,

Mouillot

et al. 2023

Preprint

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Landscape fragmentation has been correlated with either increases or decreases in burned area (BA), but their causal mechanisms remain elusive. Here, road density, a fragmentation proxy, is implemented in a CMIP6 coupled land-fire model, enabling dynamic representation of bottom-up processes affecting fragment edges. Over 2000-2013, fragmentation altered BA by >10% in 16% of burned [0.5°] grid-cells and caused gross changes of -6.5% to +5.5% in global BA. Model output mimicked the global satellite-observed negative relationship between fragmentation and BA, although some regional BA decreases were matched by fire intensity increases. In recently-deforested tropical areas, however, fragmentation drove significant, observationally-consistent increases in BA (~1/4 of Brazilian, Indonesian total BA). Fragmentation BA’s relationship with population density is negative globally-averaged, but hump-shaped and largely positive in tropical and temperate forests. We suggest fragmentation could ‘tip’ toward net BA-amplification with future tropical forest degradation and fire-activity, providing policymakers a first quantification of fragmentation-fire risks.

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The Transamazon Highway: Past, Present, Future

Cited by 13 publications

References 44 publications

Avoiding Amazonian Catastrophes: Prospects for Conservation in the 21st Century

Avoiding Amazonian Catastrophes: Prospects for Conservation in the 21st Century

Singing for Cages

Human land fragmentation drives tropical forest fires but dampens global burned area

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