Revised distributional estimates for the recently discovered olinguito (Bassaricyon neblina), with comments on natural and taxonomic history

Gerstner, Beth E.; Kass, Jamie M.; Kays, Roland; Helgen, Kristofer M.; Anderson, Robert P.

doi:10.1093/jmammal/gyy012

Cited by 26 publications

(24 citation statements)

References 40 publications

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“…Finally, this is the first time that photographs provide evidence on the presence of this rare carnivore during the 21st century (Table 1). The photographs were firstly available at the website iNaturalist, showing the relevance of citizen science in providing useful information to the knowledge of poorly known carnivores, as also has been shown for other species (i. e., Gerstner et al 2018).…”

Section: Discussionmentioning

confidence: 99%

The vulnerable colombian weasel Mustela felipei (Carnivora): new record from Colombia and a review of its distribution in protected areas

Roux

Noguera‐Urbano

Ramírez-Cháves

2019

Therya

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The Colombian weasel Mustela felipei is considered the rarest Neotropical carnivore only known from four localities in Colombia and one in Ecuador. It is considered Vulnerable on the IUCN Red List along its distributional range. We present an unexpected photographic record of a living specimen from Colombia that shed lights on its distribution on the Western Cordillera of Colombia, where it was previously known from single a record obtained on 1986. This is the first confirmed record of the Colombian weasel during the 21 st century. Finally, we discuss the species' occurrence in protected areas of Colombia, to provide tools for the conservation of this rare species.La comadreja colombiana Mustela felipei es considerada el carnívoro neotropical más raro, solo conocida de cuatro localidades en Colombia y una en Ecuador. Se considera Vulnerable en la Lista Roja de la UICN a lo largo de su rango de distribución. Presentamos un registro fotográfico inesperado de un espécimen vivo de Colombia que arrojó luces sobre su distribución en la cordillera Occidental de Colombia, donde anteriormente se conocía de un solo registro obtenido en 1986. Este es el primer registro confirmado de la comadreja colombiana durante el siglo 21. Finalmente, discutimos la ocurrencia de la especie en áreas protegidas de Colombia, para proporcionar herramientas para la conservación de esta especie rara.

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Section: Discussionmentioning

confidence: 99%

The vulnerable colombian weasel Mustela felipei (Carnivora): new record from Colombia and a review of its distribution in protected areas

Roux

Noguera‐Urbano

Ramírez-Cháves

2019

Therya

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“…Hence, forces in addition to variations in environmental parameters, such as natural selection or genetic drift, are prompting the radiation of these hummingbirds. Previous studies demonstrated the utility of niche modelling techniques to assess conservation, ecological, taxonomic biogeographic and evolutionary questions in the tropical Andes, including plants (Sanín et al 2016, Zutta and Rundel 2017, Nürk et al 2018, Oleas et al 2019, Testo et al 2019), insects (Moo-Llanes et al 2017, Scattolini et al 2018), amphibians (Ramos Pallares et al 2018, reptiles (Aguilar et al 2016), mammals (Ramoni-Perazzi et al 2012, Gutiérrez et al 2015, Gerstner et al 2018, Bennett et al 2019) and birds (Cadena and Cuervo 2010, Freile et al 2010, Jiguet et al 2010, Thomassen et al 2010, Velásquez-Tibatá et al 2013, Ramirez-Villegas et al 2014, Avendaño and Donegan 2015, Ramoni-Perazzi et al 2017. Thus, the results presented here are based on a solid background with regards to the applicability of niche modelling procedures in Neotropical environmental complex regions.…”

Section: Discussionmentioning

confidence: 99%

Niches and radiations: a case study on the Andean sapphire‐vented puffleg Eriocnemis luciani and coppery‐naped puffleg E. sapphiropygia (Aves, Trochilidae)

Ramoni‐Perazzi

Schuchmann

Weller

et al. 2020

Journal of Avian Biology

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The interaction between ecology and evolution, particularly with regard to speciation processes, remains a main topic of scientific research. Andean hummingbirds have undergone a remarkable radiation, with many species exhibiting patchy distributions and, in some cases, taxonomic controversy. An example is the sapphire-vented puffleg Eriocnemis luciani; ssp. baptistae, luciani and meridae, which some authors merge with the coppery-naped puffleg E. sapphiropygia; ssp. catharina and sapphiropygia. Each group is distributed either north or south from the Huancabamba Depression, the major biogeographical barrier within the tropical Andes. We investigated whether these subspecies share some niche characteristics despite their geographical separation and determined their meaning in the context of the speciation process of trochilids in the tropical Andes. For each subspecies, we performed geographical predictions and paired tests of niche conservatism in environmental space. Geographical predictions included separate regions for subspecies catharina and sapphiropygia, while the predicted regions for subspecies luciani and baptistae greatly overlapped. The E. l. luciani model predicted a single pixel near to the potential area of E. l. meridae, known only from a unique, old record. Subspecies luciani and baptistae exhibited the greatest niche overlap among the pairs of taxa for most variables. However, our results clearly indicated niche divergence for the four members of the E. luciani-sapphiropygia complex, independent of the similarities or slight dissimilarities in their respective backgrounds, indicating that other forces in addition to variation in environmental parameters, such as natural selection or genetic drift, are driving the radiation of these hummingbirds. This finding coincides with the unusually high speciation rates reported for Andean hummingbirds. Thus, the currently accepted taxonomy within the E. lucianisapphiropygia complex may be even more convoluted than indicated by previous studies. Hence, the results of our study are a wakeup call to include the exploration of lineage diversification in biodiversity-related efforts.Niches and radiations: a case study on the Andean sapphire-vented puffleg Eriocnemis luciani and coppery-naped puffleg E. sapphiropygia (Aves, Trochilidae)

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“…After spatial filtering, spatial autocorrelation was reduced (breeding: Moran's I = 0.472, p = <0.001; wintering: Moran's I = 0.356, p = <0.001), resulting in 315 and 133 occurrence records for use in the breeding and wintering distribution models respectively. A common issue in SDM, especially with rare species, or those that are difficult to survey, such as the Saker, is sample size (Pearson et al 2007;Gibson et al 2007). We considered the respective occurrence records obtained after data cleaning and filtering as suitable for a machine-learning algorithm SDM (Stockwell & Peterson 2002;Wisz et al 2008).…”

Section: Saker Falcon Occurrence Datamentioning

confidence: 99%

“…To predict areas of climate suitability a correlative SDM was developed using MAXENT (version 3.3.3k, Philips et al 2006;Philips & Dudík 2008), a maximum entropy machine-learning algorithm. MAXENT uses presence-background data and is a robust algorithm that out-performs other SDM methods (Elith et al 2006(Elith et al , 2011Gibson et al 2007;Duan et al 2013), with good prediction accuracy across all sample sizes (Wisz et al 2008). The MAXENT algorithm compares the environmental variables underlying the species occurrence points against the range of a random sample of background environmental conditions.…”

Section: Species Distribution Modelsmentioning

confidence: 99%

“…Regularization Multiplier (RM) and Feature Classes (FC). AICc selects models based on a balance between goodness-of-fit and model complexity (Guisan & Thuiller 2005;Muscarella et al 2014), and consistently selects less complex models robust to sampling bias (Galante et al 2018;Gerstner et al 2018). Species-specific tuning of RM and FC produces simpler and more realistic MAXENT models compared to using default settings (Warren & Seifert 2011;Muscarella et al 2014), by smoothing response curves, limiting sampling bias, and reducing over-fitting in presence-only predictions (Merow et al 2013;Radosavljevic & Anderson 2014).…”

Section: Model Evaluationmentioning

confidence: 99%

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Climatic niche of the Saker FalconFalco cherrug: predicted new areas to direct population surveys in Central Asia

Sutton

Puschendorf

2018

Ibis

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Accurate species distribution data across remote and extensive geographical areas are difficult to obtain. Here, we use bioclimatic envelope models to determine climatic constraints on the distribution of the migratory Saker Falcon Falco cherrug to identify areas in data‐deficient regions that may contain unidentified populations. Sakers live at low densities across large ranges in remote regions, making distribution status difficult to assess. Using presence‐background data and eight bioclimatic variables within a species distribution modelling framework, we applied MaxEnt to construct models for both breeding and wintering ranges. Occurrence data were spatially filtered and climatic variables tested for multicollinearity before selecting best fit models using the Akaike information criterion by tuning MaxEnt parameters. Model predictive performance tested using the continuous Boyce index (B) was high for both breeding (BTEST = 0.921) and wintering models (BTEST = 0.735), with low omission rates and minimal overfitting. The Saker climatic niche was defined by precipitation in the warmest quarter in the breeding range model, and mean temperature in the wettest quarter in the wintering range model. Our models accurately predicted areas of highest climate suitability and defined the climatic constraints on a wide‐ranging rare species, suggesting that climate is a key determinant of Saker distribution across macro‐scales. We recommend targeted population surveys for the Saker based on model predictions to areas of highest climatic suitability in key regions with distribution knowledge gaps, in particular the Qinghai‐Tibet plateau in western China. Further applications of our models could identify protected areas and reintroduction sites, inform development conflicts, and assess the impact of climate change on distributions.

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Revised distributional estimates for the recently discovered olinguito (Bassaricyon neblina), with comments on natural and taxonomic history

Cited by 26 publications

References 40 publications

The vulnerable colombian weasel Mustela felipei (Carnivora): new record from Colombia and a review of its distribution in protected areas

The vulnerable colombian weasel Mustela felipei (Carnivora): new record from Colombia and a review of its distribution in protected areas

Niches and radiations: a case study on the Andean sapphire‐vented puffleg Eriocnemis luciani and coppery‐naped puffleg E. sapphiropygia (Aves, Trochilidae)

Climatic niche of the Saker FalconFalco cherrug: predicted new areas to direct population surveys in Central Asia

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