scholarly journals Disturbance sources, human predation and reproductive success of seabirds in tropical coastal ecosystems of Sinaloa State, Mexico

2004 ◽  
Vol 14 (3) ◽  
pp. 191-202 ◽  
Author(s):  
A. MUÑOZ DEL VIEJO ◽  
X. VEGA ◽  
M. A. GONZÁLEZ ◽  
J. M. SÁNCHEZ
Keyword(s):  
Reproductive Success ◽  
Sandy Beach ◽  
Coastal Ecosystems ◽  
Economic Activities ◽  
Sula Nebouxii ◽  
North West ◽  
Sterna Antillarum ◽  
West Mexico ◽  
Least Tern ◽  
Human Predation

From March to July 2000, four seabird colonies in coastal ecosystems of Sinaloa, north-west Mexico were visited: on islets, a sandy beach and a long-abandoned salt-panning flat. There were partial and total breeding failures, most of them due to human activity. Amongst colonies of nine species, the breeding success of three was severely affected. All 250 Royal Tern Sterna maxima eggs were taken for direct consumption; 50% (75) of Blue-footed Booby Sula nebouxii chicks were killed for crab (Portunidae) fishing; and in a Least Tern Sterna antillarum colony (97 pairs), 50% failed due to disturbance from a fishing championship. Some of these species have priority status within Mexican and international conservation regulations. Certain aspects of these problems are discussed, and actions are suggested to balance conservation and the development of economic activities.

Reproductive success of the interior least tern(Sterna antillarum) in relation to hydrology on the Lower Mississippi River

2002 ◽  
Vol 18 (2) ◽  
pp. 97-105 ◽  
Author(s):  
Katie M. Dugger ◽  
Mark R. Ryan ◽  
David L. Galat ◽  
Rochelle B. Renken ◽  
John W. Smith
Keyword(s):  
Reproductive Success ◽  
Mississippi River ◽  
Sterna Antillarum ◽  
Lower Mississippi River ◽  
Least Tern

Employment Pattern and Extent of Under-utilisation of Manpower in Rural Baran; Areas of Pakistan

1993 ◽  
Vol 32 (4II) ◽  
pp. 1225-1233
Author(s):  
Sabur Ghayur
Keyword(s):  
Crop Production ◽  
Labour Force ◽  
Research Work ◽  
Labour Force Participation ◽  
Hydroelectric Power ◽  
Economic Activities ◽  
North West ◽  
North West Frontier Province ◽  
Physical Infrastructure ◽  
Employment Pattern

The barani (rain-fed) region accounts for about a fifth of the cultivated area in Pakistan. It has the potential to significantly increase crop production levels. Similarly, considerable scope exists in this area for the development of forests, fruit and vegetable gardening, pasture and stock rearing. Most of the natural resources are also found in this tract. Its hilly areas possess a vast potential for tourism. Besides, significant opportunities exist for irrigation and hydroelectric power generation. An optimum utilisation of all this potential, obviously, is employmentgenerating and income-augmenting. Despite all such realisations this region as a whole, unfortunately, is identified as the least attended to area in terms of provision of socio-physical infrastructure, other development programmes and, even, research work. This led to a deterioration of the employment situation in the barani region as a whole. A poor information base and analysis thereof on employment and manpower related variables is also the consequence of such a treatment to this area. I This paper, using the data of a field survey, tries to fill, though partly, the vacuum on employment and related variables in the rural barani region. An attempt is made here to record and analyse the labour force participation rates, employment pattern (main economic activities) and unemployment/underemployment levels prevailing in the rural baran; areas of the provinces of the Punjab and North-West Frontier Province (NWFP).

‘Caribe’ (Cnidoscolus angustidens Torr.), a promising oilseed geophyte from north-west Mexico

1999 ◽  
Vol 41 (3) ◽  
pp. 299-308 ◽  
Author(s):  
José Luis León-de la Luz ◽  
Enrique Troyo-Diéguez ◽  
M.Magdalena Ortega-Nieblas ◽  
Francisco López-Gutiérrez
Keyword(s):  
North West ◽  
West Mexico

First Report of Botrytis cinerea Pers. on Salicornia bigelovii Torr. in North-West México

2013 ◽  
Vol 162 (7-8) ◽  
pp. 513-515 ◽  
Author(s):  
Edgar O. Rueda Puente ◽  
Luis G. Hernandez Montiel ◽  
Jaime Holguin Peña ◽  
Bernardo Murillo Amador ◽  
Francisco J. Rivas Santoyo
Keyword(s):  
Botrytis Cinerea ◽  
First Report ◽  
North West ◽  
Salicornia Bigelovii ◽  
West Mexico

Irrigation of Dwarf Wheats in the Yaqui Valley of Mexico

1977 ◽  
Vol 13 (4) ◽  
pp. 353-367 ◽  
Author(s):  
R. A. Fischer ◽  
J. H. Lindt ◽  
A. Glave
Keyword(s):  
Potential Evapotranspiration ◽  
Water Shortage ◽  
Plant Water ◽  
Wheat Cultivars ◽  
Irrigation Regime ◽  
North West ◽  
Yaqui Valley ◽  
Heavy Soil ◽  
West Mexico ◽  
Plant Water Potential

SUMMARYThe response of the latest wheat cultivars to irrigation regimes was studied between 1970 and 1975 in a heavy soil of the Yaqui Valley of north-west Mexico. Yield showed greatest sensitivity to water shortage in the period 65–110 days after seeding (spike emergence around 90 days), due largely to responses in grains/m2. More frequent irrigation increased yields 5–10% over the average of 7 t/ha obtained with the commonly-adopted five irrigation regime. Various irrigation criteria were tested: potential evapotranspiration calculations seemed the most useful. Measurement of leaf permeability (with an air flow porometer) showed more promise than the use of plant water potential (measured with a pressure chamber).

Survival and Movement of Chicks of the Least Tern (Sterna antillarum) on an Alkaline Flat

2009 ◽  
Vol 54 (2) ◽  
pp. 176-181 ◽  
Author(s):  
Joanna B. Whittier ◽  
David M. Leslie
Keyword(s):  
Sterna Antillarum ◽  
Least Tern

scholarly journals A letter of Marcus Antonius Kappus to Eusebius Franciscus Kino (Sonora in 1690)

1998 ◽  
Vol 31 ◽  
pp. 65-80
Author(s):  
Tomaž Nabergoj
Keyword(s):  
Mexico City ◽  
North West ◽  
West Mexico ◽  
The Subject

The life and work of the Slovene Jesuit, Marcus Antonius Kappus (1657 -1717) who, three centuries ago, worked as a missionary in Sonora, north-west Mexico, has, in recent years, been the subject of several short studies in Slovenia. In this journal, Professor Janez Stanonik has, so far, published five letters which Kappus sent home to his relatives and friends, and one letter which he sent to hi s friend in Vienna, as well as a study on the collection of poems (276 chronograms) in Latin, which Kappus published in Mexico City, in 1708, entitled IHS. Enthusiasmus sive solemnes ludi poetici. Prompted by the above publications, the author of this paper spent a month in Sonora while journeying in Mexico in 1991. In Archivo General de la Nación (the general Mexican archives) in Mexico City, he happened to find another letter written by Marcus Antonius Kappus.

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