Two New Hosts of Tetranychus merganser Boudreaux1 in Northeastern Mexico: Pittosporum tobira (Pittosporaceae) and Helietta parvifolia (Rutaceae)

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
José I. Monjarás-Barrera ◽  
Salvador Ordaz-Silva ◽  
Rapucel T. Q. Heinz-Castro ◽  
Imelda V. López-Sánchez ◽  
José G. Pedro-Méndez ◽  
...  
2020 ◽  
Vol 55 (2) ◽  
pp. 286-287
Author(s):  
Julio C. Chacón-Hernández ◽  
José I. Monjarás-Barrera ◽  
Arturo Mora-Olivo ◽  
Venancio Vanoye-Eligio ◽  
Madai Rosas-Mejía ◽  
...  


1997 ◽  
Vol 18 (2) ◽  
pp. 105-120
Author(s):  
Solveig A. Turpin ◽  
Herbert H. Eling ◽  
Moisés Valadez Moreno

The recent discovery of a pit house village, 40 km northwest of Monterrey, challenges the conventional view of inland northeastern Mexico as the domain of purely nomadic hunters and gatherers throughout prehistory. Las Casitas consists of fifty-three subterranean rooms and forty-eight smaller depressions aligned in three slightly arcuate tiers in a small valley adjacent to Boca de Potrerillos, an extremely large open campsite and petroglyph complex that is now an archeological park. Other features of the site are some 325 hearths that surround the depressions and a very limited artifact assemblage numbering only thirty-seven items. Two hearths produced radiocarbon samples that date site occupancy to approximately a.d. 1450, just prior to the arrival of the Spanish in the New World. Las Casitas provides the first evidence of semi-sedentary, surplus producing populations in central northeastern Mexico.


2020 ◽  
Author(s):  
Isabel Cossío-Dülmer ◽  
◽  
Carolina Cossío-Dülmer ◽  
Fernando Velasco Tapia ◽  
Yolanda Pichardo-Barrón ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Rahim Foroughbakhch ◽  
Artemio Carrillo Parra ◽  
Jorge Luis Hernández Piñero ◽  
Marco Antonio Alvarado Vázquez ◽  
Alejandra Rocha Estrada ◽  
...  

A research strategy was established to analyze the structure of timber trees in terms of forest productivity (volume and wood density) of 10 species. The native speciesAcacia farnesiana, Acacia schaffneri,Bumelia celastrina,Cercidium macrun,Condalia hookeri,Ebenopsis ebano,Helietta parvifolia, andProsopis laevigataand the exotic speciesEucalyptus camaldulensisandLeucaena leucocephalawere chosen due to their ecological and economic importance to the rural villages of northeastern Mexico. Measurements of different growth parameters and volume of trees were evaluated. The introduced speciesE. camaldulensisandL. leucocephalashowed the best performance in wood volume production per tree and per hectare when compared to the native species. Likewise, among the native species,E. ebano,P. laevigata,C. hookeri, andA. farnesianatended to show better characteristics in terms of wood volume production in comparison toH. parvifolia,A. schaffneri,C. macrum, andB. celastrina. Results showed a high diversity on the properties studied. The high biomass produced by most of the species considered in this study revealed their great energetic potential when used as wood and firewood or vegetal charcoal.


1996 ◽  
Vol 89 (2) ◽  
pp. 243-251 ◽  
Author(s):  
W. L. Rubink ◽  
P. Luévano-Martinez ◽  
E. A. Sugden ◽  
W. T. Wilson ◽  
A. M. Collins

1971 ◽  
Vol 57 (2) ◽  
pp. 285 ◽  
Author(s):  
Roy T. Sawyer
Keyword(s):  

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