scholarly journals Carnivores (Mammalia) from areas of Nearctic–Neotropical transition in Puebla, central Mexico: presence, distribution, and conservation

Check List ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 1833 ◽  
Author(s):  
Osvaldo Eric Ramírez-Bravo ◽  
Lorna Hernandez-Santin
Keyword(s):  
Habitat Loss ◽  
Conservation Status ◽  
The State ◽  
Lynx Rufus ◽  
Risk Category ◽  
Central Mexico ◽  
Leopardus Pardalis ◽  
Lethal Control ◽  
Hunting Pressure ◽  
Carnivore Species

The Nearctic and Neotropical realms converge in central Mexico, where many areas have not been adequately characterized. Our objective was to revise the distribution and conservation status of carnivores in the state of Puebla, central Mexico. Between September 2008 and January 2011, we conducted interviews and fieldwork on seven previously selected areas. We complemented our data with bibliographical research. We obtained 733 records for 21 species, representing 63% of the carnivores reported for Mexico. We expanded known ranges of three species: Ocelot (Leopardus pardalis), Bobcat (Lynx rufus), and Tropical Ringtail (Bassariscus sumichastrii). Fifty percent of the carnivore species we recorded in Puebla are considered under some risk category. We found that carnivores in our study area are vulnerable to hunting pressure, human-carnivore conflicts that result in lethal control practices, and extensive habitat loss.

scholarly journals Abundancia del gato montés (Lynx rufus escuinapae J. A. Allen, 1903) en el Parque Nacional el Cimatario, Querétaro, México

2015 ◽  
Vol 31 (1) ◽  
Author(s):  
Carlos A. López-González ◽  
Daniel Ávila Aguilar ◽  
María Fernanda Cruz-Torres
Keyword(s):  
Conservation Status ◽  
Lynx Rufus ◽  
Central Mexico ◽  
Fragmented Landscapes ◽  
Minimum Density

Bobcat conservation status in central Mexico remains unclear. In many localities it is possible that bobcat populations are declining, so it is very important to estimate the densities of this species. In this note we report an abundance of 3 ± 0.78 bobcats and a minimum density of 0.17 ind/km2 at the Parque Nacional El Cimatario, Querétaro. Information on the species is limited and this data are needed to improve our knowledge in fragmented landscapes.

scholarly journals The remnants of restinga habitats in the brazilian Atlantic Forest of Rio de Janeiro state, Brazil: habitat loss and risk of disappearance

2007 ◽  
Vol 67 (2) ◽  
pp. 263-273 ◽  
Author(s):  
CFD. Rocha ◽  
HG. Bergallo ◽  
M. Van Sluys ◽  
MAS. Alves ◽  
CE. Jamel
Keyword(s):  
Habitat Loss ◽  
Rio De Janeiro ◽  
Conservation Status ◽  
Legal Protection ◽  
Field Work ◽  
The State ◽  
Conservation Units ◽  
Landsat 7 ◽  
Extensive Degradation ◽  
Janeiro State

"Restingas" (herbaceous/shrubby coastal sand-dune habitats) used to cover most of Rio de Janeiro State coast, and have suffered extensive degradation over the last five centuries. Using satellite images and field work, we identified the remaining restingas in the State, recording the factors that might cause their degradation. We used two mosaics of Landsat 7 scenes (spatial resolution 15 and 30 m) to map and evaluate preliminarly the remaining areas and conservation status. Each remnant area was checked in the field, degraded areas within it were mapped and subtracted from the remnants. We identified 21 restinga remnants totalling 105,285 ha. The largest and smallest restinga remnants were Jurubatiba (25,141 ha) and Itaipu (23 ha), respectively. We identified 14 causes of degradation. The most important were vegetation removal for housing developments, establishment of exotic plant species, change of original substrate, and selective removal of species of economic importance for the horticultural industry. All restingas had disturbed parts under strong pressure due to human activities. Due to intense habitat loss, and occurrence of endemic/threatened vertebrate species in restinga habitats, we strongly indicate the implementation of new conservation units to protect these fragile remnants. This habitat is steadily decreasing and most remnants lack legal protection. Therefore, under the current human pressure most of this unique habitat is likely to be lost from the State within the next few years.

An updated checklist of the herpetofauna of Querétaro, Mexico: species richness, diversity, and conservation status

Zootaxa ◽  
2019 ◽  
Vol 4638 (2) ◽  
pp. 273-290 ◽  
Author(s):  
RACIEL CRUZ-ELIZALDE ◽  
AURELIO RAMÍREZ-BAUTISTA ◽  
URIEL HERNÁNDEZ-SALINAS ◽  
CHRISTIAN BERRIOZABAL-ISLAS ◽  
LARRY DAVID WILSON
Keyword(s):  
Species Richness ◽  
Conservation Status ◽  
The State ◽  
Risk Category ◽  
Southeastern Part ◽  
Environmental Vulnerability ◽  
Tropical Environments ◽  
Management Plans ◽  
Species Lists ◽  
High Level

Mexico contains a large number of amphibian and reptile species, and the states in the southeastern part of the country are the richest and most diverse. Although the study of species richness within Mexico’s individual states has been increasing over the last two decades, herpetofaunal species lists for several states in the central region are incomplete. Herein, we provide a list of the herpetofauna of the state of Querétaro, a state that remains relatively unexplored. We also indicate the conservation status of the component species in the state, based on the national and international categorizations, as well as their Environmental Vulnerability Scores (EVS). Based on a review of literature and specimens in scientific collections, our results show that the herpetofauna of Querétaro currently is composed of 138 species, of which 34 are amphibians (27 anurans and seven caudates) and 104 are reptiles (three turtles, 34 lizards, and 67 snakes). The number of Mexican endemic species occurring in the state consists of 19 amphibians and 50 reptiles, representing 55.9% and 48.1%, respectively, of the total numbers in these groups. A total of 61 species (13 species of amphibians and 48 of reptiles) are listed in NOM-059-SEMARNAT-2010, within the categories of Special Protection (Pr) and Threatened (A). According to the International Union for Conservation of Nature (IUCN 2019), 34 species of amphibians (100% of species) and 87 species of reptiles (83.65% of a total of 104) have been placed within a risk category, i.e., except for the DD and NE categories. The EVS results show that nine species of amphibians have high environmental vulnerability, 11 species medium vulnerability, and 14 low vulnerability, whereas among the reptiles, 22 species have high vulnerability, 43 medium vulnerability, and 37 species low vulnerability. The herpetofauna of Querétaro illustrates a high level of species richness, which is typical of central Mexico, as well as diverse groupings associated with the arid, temperate, and tropical environments found in the state. These types of studies are necessary for increasing our knowledge of the herpetofauna in the various states of Mexico, as well as for evaluating the conservation status and implementing management plans for species in both herpetofaunal groups. 

scholarly journals Ocelot (Leopardus pardalis) distribution in the state of Puebla, Central Mexico

Therya ◽  
2010 ◽  
Vol 1 (2) ◽  
pp. 111-120 ◽  
Author(s):  
Osvaldo Eric Ramírez-Bravo ◽  
Emilio Bravo-Carrete ◽  
Cristina Hernández-Santín ◽  
Stephanie Schinkel-Brault ◽  
Kinnear Chris
Keyword(s):  
The State ◽  
Central Mexico ◽  
Leopardus Pardalis

Beaucarnea olsonii (Ruscaceae), a new species of ponytail palm from southwestern Puebla, Mexico

Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Conservation Status ◽  
Deciduous Forests ◽  
Central Mexico ◽  
Distribution Map ◽  
Southern Central ◽  
Tropical Deciduous Forests ◽  
A New Species

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.

Are listed threatened plant species actually at risk?

2002 ◽  
Vol 50 (1) ◽  
pp. 1 ◽  
Author(s):  
Mark A. Burgman
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Feedback Loop ◽  
Conservation Status ◽  
The State ◽  
Scarce Resources ◽  
Threatened Plant ◽  
Threatened Plant Species ◽  
Legal Mandates ◽  
State Of The Environment

Despite the fact that the most changes in lists of threatened species reflect changes in knowledge rather than changes in conservation status, the lists continue to provide social and legal mandates for conservation; they are used to report on the state of the environment and to guide the allocation of scarce resources. There is a substantial under-representation of non-vascular species in threatened plant lists, reflected in an absence of documented extinctions among fungi and algae. Turnover in the composition of extinct flora lists in Australia suggests that the lists of threatened species may not be sufficiently reliable to form the basis for reporting on the state of the environment. They are of limited use in distinguishing between levels of threat and may not be a reliable guide for the allocation of scarce conservation resources among plant species. Systems for listing threatened species create a feedback loop, responsive to the subjective preferences of scientists, largely unresponsive to underlying true threats, self-perpetuating and accentuating bias with each iteration. Other tools, including formal decision approaches and the acquisition of new kinds of data, are needed to fill the roles.

A new species of Calea (Neurolaeneae, Asteraceae) from the Atlantic Forest, Minas Gerais, southeastern Brazil

Phytotaxa ◽  
2021 ◽  
Vol 494 (1) ◽  
pp. 129-136
Author(s):  
GENILSON ALVES DOS REIS E SILVA ◽  
JIMI NAOKI NAKAJIMA
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Minas Gerais ◽  
The State ◽  
Identification Key ◽  
Southeastern Brazil ◽  
Distribution Map ◽  
A New Species

A new species, Calea arachnoidea, which belongs to Calea sect. Meyeria, is hereby described and illustrated. This species occurs in the Serra Negra region, located in the southern portion of the “Zona da Mata” in the state of Minas Gerais, southeastern Brazil. Calea arachnoidea resembles C. quadrifolia, C. heteropappa and C. semirii, and its relationships with these species are discussed and an identification key for the species of C. sect. Meyeria in the state of Minas Gerais is provided. Additionally, photographs, a distribution map, comments about habitat and conservation status are provided.

Density and activity patterns of ocelot populations in Yasuní National Park, Ecuador

Mammalia ◽  
2016 ◽  
Vol 80 (4) ◽  
Author(s):  
Julia Salvador ◽  
Santiago Espinosa
Keyword(s):  
Population Density ◽  
Habitat Loss ◽  
National Park ◽  
Conservation Status ◽  
Activity Patterns ◽  
Camera Trap ◽  
Oil Extraction ◽  
Density Estimates ◽  
Yasuni National Park ◽  
Ecuadorian Amazon

AbstractOcelots were historically hunted for their skins but habitat loss is now their most serious threat, causing rapid declines in populations throughout their range. Ocelot abundance has been estimated for various locations across the Neotropics, but we still lack this information from some countries, including Ecuador. Knowing whether ocelot abundance is increasing or decreasing is important to assess the conservation status of this species and the conditions of its habitats in the Ecuadorian Amazon and in the region. To determine whether ocelot abundance and its behavior are affected by human-related activities, camera-trap surveys were carried out in two localities of Yasuní National Park (YNP), one that has experienced hunting, oil extraction, and roads (Maxus Road) and one that is largely unaffected by these activities (Lorocachi). During the survey, 35 and 36 individual ocelots were photographed in Maxus Road and Lorocachi, respectively. Population density estimates were similar for both localities, ranging from 0.31 (SE±6) to 0.85 (SE±17) ocelots/km

scholarly journals Bird richness and composition in a Cerrado fragment in the State of São Paulo

2010 ◽  
Vol 70 (2) ◽  
pp. 243-254 ◽  
Author(s):  
LT Manica ◽  
M Telles ◽  
MM Dias
Keyword(s):  
Conservation Status ◽  
Bird Species ◽  
Low Frequency ◽  
Bird Community ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Conservation Area ◽  
Tropical Regions ◽  
Bird Richness

Bird species richness is an important measure for monitoring biodiversity changes. We analysed avifauna richness and composition in a 472 ha protected cerrado fragment and surroundings at Fazenda Canchim (RL-CPPSE), São Carlos, in the State of São Paulo (SP). We carried out 95.1 hours of observation (22 visits) at irregular intervals from May 2004 to December 2006. Qualitative surveys were done walking through tracks inside the fragment and on the roads at its edge. We recorded 160 species, six of which were endemic to Cerrado domain, 22 migratory, seven threatened within the State of São Paulo, and two globally threatened. We found 28 species in the cerradão, 110 in the cerrado sensu stricto, 13 in the gallery forest, 26 in the reservoir border, 26 in pasturelands and sugar cane monoculture and 55 in an anthropic area. Most of the species had low frequency of occurrence in all vegetation forms. Insectivores were the major trophic category (46.9%), which is typical in tropical regions, and it is also related to resource availability. Omnivores followed with 19.4%, granivores with 8.8% and frugivores with 7.5%. We conclude that, despite its size and conservation status, our study area has a remarkable bird community and must be considered as a priority conservation area to preserve bird species in Sao Paulo State.

scholarly journals Ichneumonidae (Hymenoptera) associated with xyelid sawflies (Hymenoptera, Xyelidae) in Mexico

2017 ◽  
Vol 58 ◽  
pp. 17-27 ◽  
Author(s):  
Andrey I. Khalaim ◽  
Enrique Ruíz-Cancino
Keyword(s):  
Pine Forest ◽  
The State ◽  
Identification Key ◽  
Central Mexico ◽  
Nuevo Leon ◽  
Nuevo León ◽  
First Time

Two species of ichneumon wasps (Ichneumonidae),Gelanes horstmanniKhalaim,sp. n.(Tersilochinae) andIdiogramma elbakyanaeKhalaimsp. n.(Tryphoninae), are described from the pine forest at 2800–2900 m from the State of Tlaxcala in Central Mexico; a third species,I. comstockii(Ashmead), is found to occur in the State of Nuevo León in Northeast Mexico. The generaGelanesHorstmann andIdiogrammaFörster are associated with xyelid sawflies (Xyelidae), and both, as well as the tryphonine tribe Idiogrammatini, are recorded from Mexico for the first time. An identification key to the twoIdiogrammaspecies occurring in Mexico is provided.

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