Sedimentological and provenance analysis of the Río Playas stratigraphic section: Implications for the evolution of the Alamor-Lancones Basin of southern Ecuador and northern Peru

The remote Nangaritza Valley of southeast Ecuador has high bird diversity, combining Amazonian birds with species typical of eastern Andean slopes and foothills, a small number of taxa endemic to the Cordillera del Cóndor region of southern Ecuador and northern Peru, as well as a few forms from the dry Marañón valley region. Here, we update and review avifaunal records from the Nangaritza Valley, comparing them with the bird fauna of the Cordillera del Kutukú and making a brief assessment of bird conservation in the area. To date, 535 species are known to occur in the Nangaritza Valley, including eight species endemic or near endemic to the outer ridges and adjacent Andean slopes in southeast Ecuador and northeast Peru. Conservation perspectives in the area are not favorable owing to increasing deforestation, expansion of the agricultural frontier and mining concessions, which threaten eight regional endemic species.

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Five new Penaincisalia species (Lepidoptera: Lycaenidae: Eumaeini) from the Andes of southern Ecuador and northern Peru

Zootaxa ◽

10.11646/zootaxa.797.1.1 ◽

2005 ◽

Vol 797 (1) ◽

pp. 1 ◽

Cited By ~ 4

Author(s):

JASON P.W. HALL ◽

KEITH R. WILLMOTT ◽

ROBERT C. BUSBY

Keyword(s):

New Species ◽

The Andes ◽

Southern Ecuador ◽

Northern Peru

Five new species of Penaincisalia (Lycaenidae: Eumaeini) are described from the high Andes of southern Ecuador and northern Peru: P. caeruleanota Hall & Willmott n. sp., P. juliae Hall & Willmott n. sp., P. andreae Busby & Hall n. sp., P. libertada Hall n. sp. and P. ismaeli Busby & Hall n. sp.. We present brief discussions on their systematic placement within the genus and on their adult ecology.

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Ecuadorian Cinnabar and the Prehispanic Trade in Vermilion Pigment: Viable Hypothesis or Red Herring?

Latin American Antiquity ◽

10.7183/1045-6635.27.1.22 ◽

2016 ◽

Vol 27 (1) ◽

pp. 22-35 ◽

Cited By ~ 14

Author(s):

Richard L. Burger ◽

Kris E. Lane ◽

Colin A. Cooke

Keyword(s):

Isotope Analysis ◽

Central Andes ◽

Archaeological Sites ◽

Red Pigment ◽

Mercury Isotope ◽

Archaeological Evidence ◽

South Central ◽

Southern Ecuador ◽

Northern Peru ◽

To Come

Cinnabar ore is the source of a bright red pigment (mercury [II] sulfide, HGS), a substance that was highly valued in the Central Andes during prehispanic times. It is traditionally believed to come from Huancavelica in south-central Peru, although some scholars have argued that a prehispanic cinnabar source existed at Azogues near Cuenca in southern Ecuador. It has also been suggested that the cinnabar recovered at archaeological sites in northern Peru such as Baton Grande may have come from this putative Ecuadorian source. In this article, the historical and archaeological evidence supporting this position is evaluated and found to be insufficient to sustain the Ecuadorian Cinnabar Hypothesis. Moreover, recent mercury isotope analysis of archaeological samples from northern Peru supports the earlier hypothesis that the source of the bright red pigment, sometimes referred to as vermilion, was cinnabar ore mined in Huancavelica. This source is located over 850 km to the south of archaeological sites such as Batdn Grande, Chongoyape, and Pacopampa.

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Rubiacearum Americanarum Magna Hama Pars XLIII: New Species and Notes on South American Hippotis (Condamineae) and Schradera (Schradereae)

Novon A Journal for Botanical Nomenclature ◽

10.3417/2019298 ◽

2019 ◽

Vol 27 (2) ◽

pp. 87-101

Author(s):

Charlotte M. Taylor ◽

David A. Neill ◽

Melissa Calderón Cruz

Keyword(s):

New Species ◽

South America ◽

Field Study ◽

Amazon Basin ◽

South American ◽

Standing Tree ◽

Free Standing ◽

Southern Ecuador ◽

Northern Peru

This paper reviews Hippotis Ruiz & Pav. and Schradera Vahl, two Rubiaceae genera with centers of diversity in western South America. Both are inadequately known and in need of field study. Recent authors’ circumscriptions of H. albiflora H. Karst. and H. mollis Standl. are narrowed here, and four new species of Hippotis are described: H. antioquiana C. M. Taylor from northwestern Colombia, H. ecuatoriana C. M. Taylor from central-southern Ecuador, H. elegantula C. M. Taylor & M. Calderón from the western Amazon basin in Ecuador, and H. vasqueziana C. M. Taylor from lowland northeastern Peru. Four new species of Schradera Vahl are also described here: S. cernua C. M. Taylor and S. francoae C. M. Taylor from western Colombia, S. condorica C. M. Taylor & D. A. Neill from southern Ecuador, and S. morindoides C. M. Taylor from southern Ecuador and northern Peru. Schradera condorica at least sometimes is a free-standing tree, a habit newly documented for this genus.

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Green barks of trees from drought deciduous forests (“bosque seco”) in northern Peru/southern Ecuador do not perform CAM

Basic and Applied Dryland Research ◽

10.1127/badr/2015/0002 ◽

2015 ◽

Author(s):

Manfred Küppers ◽

Barbara I.L. Küppers ◽

Viviana Horna ◽

Maik Veste ◽

Reiner Zimmermann ◽

...

Keyword(s):

Deciduous Forests ◽

Southern Ecuador ◽

Northern Peru

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Systematics of Huicundomantis, a new subgenus of Pristimantis (Anura, Strabomantidae) with extraordinary cryptic diversity and eleven new species

ZooKeys ◽

10.3897/zookeys.868.26766 ◽

2019 ◽

Vol 868 ◽

pp. 1-112 ◽

Cited By ~ 1

Author(s):

Nadia B. Páez ◽

Santiago R. Ron

Keyword(s):

New Species ◽

Dna Sequences ◽

Species Group ◽

Environmental Data ◽

Cryptic Diversity ◽

New Subgenus ◽

Southern Ecuador ◽

Northern Peru ◽

Data Deficient ◽

A New Species

Pristimantis is the most diverse genus of tetrapods comprising 532 described species. It contains a large number of morphologically cryptic species that are being discovered with the assistance of genetic evidence. We use molecular, morphological, bioacoustic, and environmental data to assess the phylogenetic relationships and determine the species within an Andean clade of Pristimantis, which is distributed from central Ecuador to northern Peru. We assign to this clade the name Huicundomantis and propose it as a subgenus. Our results show that Huicundomantis is composed of two large clades which we name as the P.phoxocephalus species group and the P.cryptomelas species group. Huicundomantis is composed of 28 species of which 12 have been described and 16 are new. We describe 11 of these undescribed species. The most effective characters to discriminate among species are DNA sequences, qualitative morphology, and advertisement calls. Morphometric and environmental characters are not very useful to define species limits. We clarify the identity of P.riveti and show that populations from southern Ecuador traditionally ascribed to P.riveti are a new species, P.lutzaesp. nov. We also show that P.prometeii is a junior synonym of P.hampatusami. The current diversity and geographic distribution of Huicundomantis are consistent with a model of allopatric speciation. All species have a restricted distribution range (less than 4330 km2) and are assigned to the Red List categories Data Deficient or threatened with extinction. We provide new reasons to increase conservation efforts for these species and their habitat. Taking our results into account, Pristimantis species richness in Ecuador increases from 211 to 221 species, and the number of species endemic to Ecuador from 119 to 129.

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Five new (extinct?) species of Atelopus (Anura: Bufonidae) from Andean Colombia, Ecuador, and Peru

Zootaxa ◽

10.11646/zootaxa.2574.1.1 ◽

2010 ◽

Vol 2574 (1) ◽

pp. 1 ◽

Cited By ~ 22

Author(s):

LUIS A. COLOMA ◽

WILLIAM E. DUELLMAN ◽

ANA ALMENDÁRIZ C. ◽

SANTIAGO R. RON ◽

ANDREA TERÁN-VALDEZ ◽

...

Keyword(s):

New Species ◽

Iucn Red List ◽

Putative Hybrid ◽

The Andes ◽

Southern Ecuador ◽

Northern Peru ◽

Data Deficient ◽

Iucn Red List Criteria ◽

First Time ◽

One New Species

We studied populations of frogs of the genus Atelopus from the Pasto Massif of the Andes in southern Colombia and northern Ecuador, and from the Huancabamba depression in southern Ecuador and northern Perú and conclude that they belong to six species, five of which are described as new to science. Atelopus angelito is recorded for the first time from Ecuador and its range is extended 183 km (airline) southwest of its type locality in Departamento del Cauca, Colombia. We distinguish the five new species from similar ones using features of coloration, skin texture, and morphometrics. We also include osteological data for four of the new species. A putative hybrid zone at Provincia Imbabura, Ecuador, is proposed to exist between the non-sister taxa A. ignescens and one of the new species. Because recent records of four of the new species and A. angelito are lacking despite search efforts, we hypothesize that they are possibly extinct, as are many other Andean Atelopus. Thus, we categorize these species, applying IUCN Red List criteria, as Critically Endangered (Possibly Extinct). No search efforts have been carried out for one new species (from La Victoria, Colombia); thus, it is included under the Data Deficient category. The conservation of Atelopus is briefly discussed.

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