scholarly journals Geographic and ecological analysis of the Bearded Wood Partridge Dendrortyx barbatus: some insights on its conservation status

2012 ◽  
Vol 23 (3) ◽  
pp. 371-385 ◽  
Author(s):  
CLAUDIO MOTA-VARGAS ◽  
OCTAVIO R. ROJAS-SOTO ◽  
CARLOS LARA ◽  
CITLALLI CASTILLO-GUEVARA ◽  
CLAUDIA BALLESTEROS-BARRERA
Keyword(s):  
Vegetation Type ◽  
Cloud Forest ◽  
Conservation Status ◽  
Distribution Area ◽  
Risk Category ◽  
Mountain Range ◽  
Environmental Distribution ◽  
Sierra Madre ◽  
Determining Factors ◽  
Key Factor

SummaryDelimiting the distribution of a species is a complex task because many determining factors are difficult to assess in the field. This is important because distribution is a key factor in the decision-making process for conservation. One example is the Bearded Wood Partridge Dendrortyx barbatus, a species endemic to the temperate forests of the Sierra Madre Oriental (SMO) mountain range in Mexico. Lack of knowledge of its distribution has generated confusion over the assignment of the correct risk category. With the aim of predicting the distribution area of the Bearded Wood Partridge and contributing to strategies for its conservation, we updated and extended the knowledge of its distribution by modelling its ecological niche using GARP and MaxEnt algorithms. We also analysed its environmental distribution using principal components analysis, and contrasted the two most important environmental variables with the species’s distribution based on vegetation type. We found that the area potentially occupied by this species covers 17,956 km2 according to GARP and 12,974 km2 according to MaxEnt. We suggest that there is a biogeographic barrier which limits the distribution of this species in the southern part of its range. The abiotic variables that best explain its distribution are average annual precipitation and elevation, both of which coincide well with the distribution of cloud forest. A redefinition of the current range as recognised by IUCN is proposed along with the need to change its national risk category.

scholarly journals El bosque mesófilo de montaña en el municipio de Landa de Matamoros, Querétaro, México

2017 ◽  
pp. 13 ◽  
Author(s):  
Sandra Cartujano ◽  
Sergio Zamudio ◽  
Othón Alcántara-Ayala ◽  
Isolda Luna
Keyword(s):  
Vascular Plants ◽  
Vegetation Type ◽  
Cloud Forest ◽  
Conservation Status ◽  
Biosphere Reserve ◽  
Distribution Map ◽  
Floristic Inventory ◽  
Sierra Madre ◽  
La Joya ◽  
Bosque Mesófilo De Montaña

A floristic inventory of the cloud forest of some localities of Landa de Matamoros municipality, Querétaro, was undertaken; this area is located in the Sierra Madre Oriental and is part of the Sierra Gorda Biosphere Reserve. In this zone the forest is  fragmented, but it has a relatively good conservation status in some localities such as Camarones, Neblinas, La Yesca, and La Joya del Hielo. A floristic list of vascular plants composed by 130 families, 465 genera and 774 species was obtained. A  distribution map of this vegetation type is included.

scholarly journals Amphibians and Reptiles, Luzon Island, Aurora Province and Aurora Memorial National Park, northern Philippines: new island distribution records

Check List ◽  
2011 ◽  
Vol 7 (2) ◽  
pp. 182 ◽  
Author(s):  
Cameron D. Siler ◽  
Luke J. Welton ◽  
Jessi M. Siler ◽  
Joseph Brown ◽  
Abner Bucol ◽  
...  
Keyword(s):  
New Species ◽  
National Park ◽  
Conservation Status ◽  
Species Distributions ◽  
Mountain Range ◽  
Previous Survey ◽  
Monitor Lizard ◽  
Sierra Madre ◽  
Reptile Species ◽  
Data Result

We report 35 new amphibian and reptile distribution records for two regions within the southern Sierra Madre Mountain Range, Aurora Province, central Luzon Island, Philippines. Together with results of our previous survey work in Aurora, our new data result in a total of 82 amphibian and reptile species for the area. These results highlight the degree to which the island’s biodiversity continues to be underestimated and poorly understood. We report on observations of rarely encountered species including the skink Sphenomorphus leucospilos, the forest gecko Luperosaurus cf. cumingii, and a sensational new species of monitor lizard, Varanus bitatawa. Our recent collections clarify the conservation status of the “critically endangered” Polillo Island forest frog Platymantis polillensis, now known to be widespread, abundant, and common throughout Camarines Norte, Quezon, and Aurora Provinces on the adjacent mainland of Luzon Island. These results add to our growing understanding of many species’ distributions in the region.

scholarly journals Diversity, distribution, and conservation status of Rubiaceae species in Peñablanca Protected Landscape and Seascape, Luzon, Philippines

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Rachel Biag ◽  
GRECEBIO JONATHAN D. ALEJANDRO
Keyword(s):  
Species Diversity ◽  
Endemic Species ◽  
Protected Area ◽  
Conservation Status ◽  
Single Species ◽  
Mountain Range ◽  
Natural Park ◽  
Sierra Madre ◽  
Data Deficient ◽  
Near Threatened

Abstract. Biag RA, Alejandro GJD. Diversity, distribution, and conservation status of Rubiaceae species in Peñablanca Protected Landscape and Seascape, Luzon, Philippines. Biodiversitas 22: 3627-3636. Peñablanca Protected Landscape and Seascape (PPLS) is the largest protected area (PA) in the province of Cagayan, Luzon, Philippines. As part of the Sierra Madre Mountain Range and being contiguous with the Northern Sierra Madre Natural Park, there is no doubt that this PA would display species endemism and richness. Hence, botanical surveys through purposive sampling in seven barangays/districts were conducted in the PPLS to determine the species diversity and distribution of Rubiaceae. This study also aims to identify the endemic species and determine their conservation status. Forty-two species of Rubiaceae belonging to 19 genera and 13 tribes were documented in the current study. The most species-rich tribes are Spermacoceae (9 sp.), followed by Psychotrieae (7 sp.), Pavetteae (6 sp.), Naucleae (5 sp.), Ixoreae (4 sp.), Aleisantheae (2 sp.), Mussaendeae (2 sp.), and Vanguerieae (2 sp.). The rest of the tribes, i.e., Augusteae, Coffeeae, Gardenieae, Knoxieae, and Morindeae, are represented by a single species. Minanga, Nabbabalayan and Sisim harbor the most species. Results show that 19 Philippine endemic species are thriving in the PPLS. Of these, four are threatened species; one is near threatened, three being least concern, two as data deficient, and the rest were not evaluated.  

scholarly journals Análisis estructural de un bosque mesófilo de montaña en el extremo oriental de la Sierra Madre del Sur (Oaxaca), México

2017 ◽  
pp. 13
Author(s):  
Nancy R. Mejía-Domínguez ◽  
Jorge A. Meave ◽  
Carlos A. Ruiz-Jiménez
Keyword(s):  
Vegetation Type ◽  
Cloud Forest ◽  
Basal Area ◽  
Individual Species ◽  
Crown Cover ◽  
Sierra Madre ◽  
Tropical America ◽  
Sierra Madre Del Sur ◽  
Bosque Mesófilo De Montaña ◽  
Topographic Heterogeneity

We analyzed vegetation structure in a 1-ha plot of cloud forest at Santo Tomás Teipan (Oaxaca, Mexico). Considering its marginal location near the edge of a region covered by this vegetation type on the Sierra Madre del Sur, we examined to what extent this community differed from other cloud forest communities thriving under better conditions for this plant formation. Each individual with diameter at breast height (DBH) ≥2.5 cm was located in a system of coordinates; besides, its taxonomic identity, crown cover, DBH and total height as well as the height to the first branch and the crown base were recorded. Basal area (46.41 m2 ha-1), cover (44,247.33 m2 ha-1), and density (1,035 ind. ha-1) figures fall within the known range for the lower montane rain forests of tropical America. According to structure and composition, two strata were differentiated: a lower one (2 to 11 m), and an upper one (11 to 30 m). Overall dominance corresponded to Cornus disciflora, an upper stratum species. In the plot two topographic conditions were distinguished, namely lower ravine slope and hilltop, which seem to be associated to contrasting soil characteristics. Although this topographic heterogeneity does not match the structural homogeneity of the forest, we detected some clumped patterns for individual species that were preferentially distributed in one of these conditions. The structure of the forest at Teipan is comparable to that of similar forests, but its diversity is relatively low. This may be explained by the absence of taxa occurring in the adjacent dry tropical communities, unlike other cloud forests whose flora appears to be enriched with some elements typical of tropical moist communities with which they abut.

scholarly journals The conservation status of birds on the Cordillera de Colán, Peru

1997 ◽  
Vol 7 (2) ◽  
pp. 181-195 ◽  
Author(s):  
C. W. N. Davies ◽  
R. Barnes ◽  
S. H. M. Butchart ◽  
M. Fernandez ◽  
N. Seddon
Keyword(s):  
Protected Area ◽  
Cloud Forest ◽  
Conservation Status ◽  
Bird Species ◽  
High Rate ◽  
Mountain Range ◽  
The North ◽  
Cash Crops ◽  
North Bank ◽  
Conservation Of Biodiversity

SummaryIn July and August 1994, we surveyed two areas in the south of the Cordillera de Colán, Amazonas department, Peru, above the north bank of the río Utcubamba. We found a high rate of deforestation, with trees being felled for timber, forest being cleared for the cultivation of cash crops, and elfin forest being burned for pasture. Most of the forest on the mountain range may have been cleared in 10 years. We recorded a number of important bird species, highlighting the significance of the area for the conservation of biodiversity; globally threatened birds included Peruvian Pigeon Columba oenops, Military Macaw Ara militaris and Royal Sunangel Heliangelus regalis. Elfin forest is under particular threat in the area, but probably still holds species such as Long-whiskered Owlet Xenoglaux loweryi. We recommend that a protected area containing areas of cloud-forest and elfin forest be established on the Cordillera de Colán.

scholarly journals A conservation checklist of the herpetofauna of Morelos, with comparisons with adjoining states

ZooKeys ◽  
2020 ◽  
Vol 941 ◽  
pp. 121-144 ◽  
Author(s):  
Julio A. Lemos-Espinal ◽  
Geoffrey R. Smith
Keyword(s):  
Deciduous Forest ◽  
Vegetation Type ◽  
Conservation Status ◽  
Tropical Deciduous Forest ◽  
Sierra Madre ◽  
Reptile Species ◽  
Sierra Madre Del Sur ◽  
Forest Vegetation Type ◽  
High Diversity ◽  
Near Threatened

Despite being one of the smallest states in Mexico, the high diversity of habitats in Morelos has led to the development of a rich biota made up of a mixture of species typical of the Neovolcanic Axis and the Sierra Madre del Sur. However, recent expansion of cities in Morelos is likely to have consequences for the state’s herpetofauna. Here a checklist of the amphibians and reptiles of Morelos is provided with a summary of their conservation status and overlap with its neighboring states. Morelos is home to 139 species of amphibians and reptiles representing 32 families and 75 genera. Twenty-six of the 38 species of amphibians and 70 of the 101 species of reptiles that inhabit Morelos are endemic to Mexico. Fourteen species of amphibians and reptiles from Morelos are IUCN listed (i.e., Vulnerable, Near Threatened, or Endangered), 22 are placed in a protected category by SEMARNAT, and 41 are categorized as high risk by the EVS. The Tropical Deciduous Forest vegetation type hosts the greatest number of amphibian and reptile species in Morelos (84 species). Morelos shares the largest proportion of its herpetofauna with the State of Mexico (79.3%), Puebla (77.0%), and Guerrero (74.8%).

scholarly journals Spatial-Temporal Patterns and Controls of Evapotranspiration across the Tibetan Plateau (2000–2012)

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Hao Zhang ◽  
Jian Sun ◽  
Junnan Xiong
Keyword(s):  
Tibetan Plateau ◽  
Environmental Factors ◽  
Vegetation Type ◽  
Middle Part ◽  
Rate Of Change ◽  
Ecological Indicator ◽  
The Tibetan Plateau ◽  
Grassland Ecosystems ◽  
Key Factor ◽  
Positive Correlations

Evapotranspiration (ET) is a key factor to further our understanding of climate change processes, especially on the Tibetan Plateau, which is sensitive to global change. Herein, the spatial patterns of ET are examined, and the effects of environmental factors on ET at different scales are explored from the years 2000 to 2012. The results indicated that a steady trend in ET was detected over the past decade. Meanwhile, the spatial distribution shows an increase of ET from the northwest to the southeast, and the rate of change in ET is lower in the middle part of the Tibetan Plateau. Besides, the positive effect of radiation on ET existed mainly in the southwest. Based on the environment gradient transects, the ET had positive correlations with temperature (R>0.85, p<0.0001), precipitation (R > 0.89, p < 0.0001), and NDVI (R > 0.75, p < 0.0001), but a negative correlation between ET and radiation (R = 0.76, p < 0.0001) was observed. We also found that the relationships between environmental factors and ET differed in the different grassland ecosystems, which indicated that vegetation type is one factor that can affect ET. Generally, the results indicate that ET can serve as a valuable ecological indicator.

scholarly journals The endemic plant species of Mt Kupe, Cameroon with a new Critically Endangered cloud-forest tree species, Vepris zapfackii (Rutaceae)

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Martin Cheek ◽  
Jean Michel Onana
Keyword(s):  
Endemic Species ◽  
Tree Species ◽  
Cloud Forest ◽  
Conservation Status ◽  
Forest Tree ◽  
Critically Endangered ◽  
Endemic Plant ◽  
Taxonomic Changes ◽  
Mt Kupe ◽  
Endemic Plant Species

SummaryWe revise and update the records of strict and near-endemic species of Mt Kupe, Cameroon respectively from 31 strict endemics in 2004, to 25 today, and with near-endemic species 30, unchanged in number but with turnover. The changes result from new collections, discoveries and taxonomic changes in the last 16 years. While 15 of the provisionally named putative endemic species have now been formally published, a further 18 have not. The majority of the 30 near-endemic species (18) are shared with the adjacent Bakossi Mts, far exceeding the numbers shared with the more distant Mt Etinde-Mt Cameroon, Rumpi Hills and Ebo forest areas (sharing three near-endemic species each with Mt Kupe). We test the hypothesis that a further one of the provisionally named putative Mt Kupe species, Vepris sp. 1 from submontane forest near the summit, is indeed new to science. We compare it morphologically with the two other bicarpellate high altitude Cameroon Highland tree species V. montisbambutensis Onana and V. bali Cheek, concluding that it is a new undescribed species here named as Vepris zapfackii. The new species is illustrated and its conservation status assessed as Critically Endangered using the 2012 IUCN standard, due to habitat clearance from agricultural pressures at its sole location which is unprotected. Vepris zapfackii and V. bali appear unique in African trifoliolate species of the genus in having opposite leaves. Vepris zapfackii differs in having hairy petiolules and midribs and petiolules with the blade decurrent distally, narrowing towards a winged-canaliculate base (vs glabrous and petiolule long, terete), and sparsely golden hairy pistillodes and a glabrous calyx (vs densely black hairy pistillodes, and sepals hairy).

scholarly journals Registro notable de dos mesocarnívoros en el bosque nuboso de Baja Verapaz, Guatemala

2019 ◽  
Vol 9 (1) ◽  
pp. 56
Author(s):  
Guillermo Alejandro Mármol Kattán ◽  
Gabriela Palomo Muñoz ◽  
Juan Pablo Pinto Meneses ◽  
Isabella Mercedes Rosito Prado
Keyword(s):  
Cloud Forest ◽  
Camera Traps ◽  
Distribution Area ◽  
Natural Reserve

ResumenEl margay (Leopardus wiedii) y el yaguarundi (Herpailurus yagouaroundi) son felinos medianos neotropicales de los cuales existen pocos estudios en Guatemala. Ambas especies se conocen principalmente por observaciones esporádicas y en rara ocasión son referenciadas geográficamente. En este trabajo reportamos la presencia de margay y yaguarundi en la Reserva Natural Ranchitos del Quetzal, Purulhá, Baja Verapaz. Nuestras observaciones se basan en registros de cámaras trampa colocadas en un parche de bosque nuboso entre 1,600 y 1,900 msnm durante 2017 y 2019. Registramos la presencia de yaguarundi a 31 km al sureste del sitio reportado más cercano, lo que extendió su área de distribución en Guatemala. Adicionalmente, confirmamos la presencia de margay a más de 1,500 msnm en bosque nuboso de Baja Verapaz, lo cual extendió su área de distribución 30 km al sureste del sitio reportado más cercano en Guatemala.Palabras clave: cámaras trampa, distribución, Guatemala, mamíferos, margay, yaguarundi.AbstractThe margay (Leopardus wiedii) and jaguarundi (Herpailurus yagouaroundi) are medium-sized neotropical felines for which few studies have been conducted in Guatemala. Both species are mainly known from sporadic observations and are rarely geographically referenced. We report the presence of margay and jaguarundi in the Private Natural Reserve Ranchitos del Quetzal, Purulhá, Baja Verapaz, Guatemala. We base our records on observations using camera traps placed in a cloud forest between 1,600 and 1,900 mamsl during 2017 and 2019. We recorded the presence of jaguarundi 31 km SE of the closest registered site, increasing its reported distribution area in Guatemala. Additionally, we report the presence of margay over 1,500 mamsl in the cloud forest of Baja Verapaz, which increases its distribution by 30 km SE of the closest registered site in Guatemala up to date.Key words: camera traps, distribution, Guatemala, jaguarundi, mammals, margay.

scholarly journals Distribution update, conservation status and color in life of the rare Amazonian snake, Eutrachelophis papilio Zaher and Prudente 2019 (Serpentes: Xenodontini)

2020 ◽  
Vol 50 (3) ◽  
pp. 252-255
Author(s):  
Nathalie CITELI ◽  
Mariana DE-CARVALHO ◽  
Reuber BRANDÃO
Keyword(s):  
Convex Polygon ◽  
Conservation Status ◽  
Biological Data ◽  
Distribution Area ◽  
Minimum Convex Polygon ◽  
Human Footprint ◽  
Data Deficient ◽  
First Time ◽  
Polygon Method ◽  
Anthropic Pressure

ABSTRACT The rare Amazonian snake Eutrachelophis papilio is known from only five individuals, from four localities, belonging to its type-series, the more recent collected over 10 years ago. Here, we expand its distribution and describe its color in life for the first time. We also provide an estimate of its distribution area using the minimum convex polygon method and identify the values of anthropic pressure within its known distribution range with the Human Footprint Index. The new occurrence is located 291 km from the nearest known locality and its distribution is associated with pristine forests. Considering its rarity, and the absence of demographic and biological data, we suggest that the species should be classified as Data Deficient by IUCN criteria.

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