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Registros recuperados: 8
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Galictis cuja (Mammalia): an update of current knowledge and geographic distribution Iheringia, Sér. Zool.
Poo-Muñoz,Daniela A.; Escobar,Luis E.; Peterson,A. Townsend; Astorga,Francisca; Organ,John F.; Medina-Vogel,Gonzalo.
The lesser grison (Galictis cuja) is one of the least-known mustelids in the Neotropics, despite its broad range across South America. This study aimed to explore current knowledge of the distribution of the species to identify gaps in knowledge and anticipate its full geographic distribution. Eighty-nine articles have mentioned G. cuja since 1969, but only 13 focused on the species. We generated a detailed model of the species' potential distribution that validated previous maps, but with improved detail, supporting previous southernmost records, and providing a means of identifying priority sites for conservation and management of the species.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity conservation; Mustelidae; Neotropics; Distribution; Ecological niche modeling.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000300010
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Benthic Ecoregionalization based on echinoid fauna of the Southern Ocean supports current proposals of Antarctic Marine Protected Areas under IPCC scenarios of climate change ArchiMer
Fabri‐ruiz, S; Danis, B; Navarro, N; Koubbi, Philippe; Laffont, R; Saucède, T.
The Southern Ocean (SO) is among the regions on Earth that are undergoing regionally the fastest environmental changes. The unique ecological features of its marine life make it particularly vulnerable to the multiple effects of climate change. A network of Marine Protected Areas (MPAs) has started to be implemented in the SO to protect marine ecosystems. However, considering future predictions of the Intergovernmental Panel on Climate Change (IPCC), the relevance of current, static, MPAs may be questioned under future scenarios. In this context, the ecoregionalization approach can prove promising in identifying well‐delimited regions of common species composition and environmental settings. These so‐called ecoregions are expected to show similar biotic...
Tipo: Text Palavras-chave: Climate change; Echinoids; Ecological niche modeling; Ecoregionalization; Marine Protected Areas.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00606/71809/70298.pdf
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Future uncertainties for the distribution and conservation of Paubrasilia echinata under climate change Acta Botanica
Esser,Luíz Fernando; Saraiva,Daniel Dutra; Jarenkow,João André.
ABSTRACT Paubrasilia echinata is a widely cultivated endangered tree species with small populations restricted to a narrow strip of habitats along the Brazilian coast. The potential impacts of climate change on the distribution of P. echinata have yet to be investigated, and so it remains unknown whether protected areas will ensure the persistence of the species in the future. Here, we estimate the impacts of climate change on the distribution of P. echinata inside and outside of protected areas considering different climate change scenarios and two different sets of presence records: natural distribution and cultivated records. Future scenarios showed a gradual reduction in climatically suitable area both inside and outside of protected areas. Projections...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity conservation; Ecological niche modeling; Fabaceae; Species distribution modeling; Tree species.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400770
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Anticipating the response of the Brazilian giant earthworm (Rhinodrilus alatus) to climate change: implications for its traditional use Anais da ABC (AABC)
HUGHES,FREDERIC M.; CÔRTES-FIGUEIRA,JOSÉ EUGÊNIO; DRUMOND,MARIA AUXILIADORA.
Abstract Our understanding of the impacts of ongoing global warming on terrestrial species has increased significantly during the last several years, but how climatic change has affected, and will affect, the distribution of earthworms remains largely unknown. We used climate niche modeling to model the current distribution of the giant earthworm Rhinodrilus alatus - an endemic species of the Cerrado Domain in Brazil, which is traditionally harvested and commercialized for fishing bait. R. alatus is sensitive to environmental changes because climate, in synergy with soil attributes, determine its annual reproductive cycle and distribution. The paleoclimatic reconstructions predict important geographical shifts from LGM (~21,000 yBp) to the present...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Ecological niche modeling; Giant earthworm; Harvesting; Management; Rhinodrilus alatus.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100605
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Ecological niche modeling of Schinus molle reveals the risk of invasive species expansion into biodiversity hotspots Anais da ABC (AABC)
LEMOS,RAFAEL P.M.; MATIELO,CRISTIANE B.D.; MARQUES JR.,ALCEMIR S.; SANTOS,MICHELE G. DOS; ROSA,VANESSA G. DA; SARZI,DEISE S.; ROSA,JOÃO VITOR S..; STEFENON,VALDIR M..
Abstract: Invasive species need a closer look on the threats they may cause to the environment, mainly considering the scenario of climatic changes predicted for the next decades. Schinus molle is a pioneer tree native from South America, reported as an important invasive species in four continents. Using ecological niche modeling we show that a wide area over the world is propitious for S. molle establishment under current climatic conditions, including 14 of the 25 world’s biodiversity hotspots. Current projections of climate changes suggest scenarios implying the rise of areas favorable for S. molle expansion. Therefore, particular attention should be taken in regions where it was introduced, while approaches for long-term intervention may be necessary...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Peruvian peppertree; Ecological niche modeling; Invasiveness; Ecosystem management.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700613
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Climatically-mediated landcover change: impacts on Brazilian territory Anais da ABC (AABC)
ZANIN,MARINA; TESSAROLO,GEIZIANE; MACHADO,NATHÁLIA; ALBERNAZ,ANA LUISA M..
ABSTRACT In the face of climate change threats, governments are drawing attention to policies for mitigating its effects on biodiversity. However, the lack of distribution data makes predictions at species level a difficult task, mainly in regions of higher biodiversity. To overcome this problem, we use native landcover as a surrogate biodiversity, because it can represent specialized habitat for species, and investigate the effects of future climate change on Brazilian biomes. We characterize the climatic niches of native landcover and use ecological niche modeling to predict the potential distribution under current and future climate scenarios. Our results highlight expansion of the distribution of open vegetation and the contraction of closed forests....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Brazil; Ecological niche modeling; Native landcover; Biomes.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000300939
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Consequences of global climate change for geographic distributions of cerrado tree species Biota Neotropica
Siqueira,Marinez Ferreira de; Peterson,Andrew Townsend.
The present study applies a series of new techniques to understand the conservation of Cerrado tree species in the face of climate change. We applied techniques from the emerging field of ecological niche modeling to develop a first-pass assessment of likely effects of climate change on tree species’ distributions in the Cerrado biome by relating known occurrence points to electronic maps summarizing ecological dimensions. Distributional data represent 15,657 records for 162 tree species occurring in Cerrado. By focusing on the trees of one important and highly endemic biome, rather than the biota of a political unit, we were able to focus on developing biome-wide projections. An important limitation of this study is that only those species with more than...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecological niche modeling; Cerrado tree species; Climate change.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032003000200005
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Assessment of invasive potential of Homalodisca coagulata in western North America and south America Biota Neotropica
Peterson,A. Townsend; Scachetti-Pereira,Ricardo; Kluza,Daniel A..
The potential of Homalodisca coagulata to invade South America is a question of economic importance, given its potential impact as a disease vector for several crops. We developed ecological niche models for the species on its native geographic distribution in the southeastern United States; we tested the predictivity of the models both on the native distributional area and via projections to California, where the species has long been present as an invasive species. In both cases, tests indicated high statistical significance of predictions. Projection of models to South America indicated little possibility of invasion of southeastern Brazil, where citrus diseases were of concern. However, all models agree in predict-ing great risk of establishment in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecological niche modeling; Invasive species; Xylella fastidiosa; Vector.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032003000100006
Registros recuperados: 8
Primeira ... 1 ... Última
 

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