The Plain Chachalaca (Ortalis vetula mccalli) is the only member of the family Cracidae in the United States, where it is native to four counties in the Lower Rio Grande Valley of Texas. The species’ habitat of dense brushland and its shy, elusive nature make it difficult to observe in the wild. As a result, published information on the status of Texas chachalacas is meager. One report indicate...

We determined patterns of post-dispersal fruit and seed removal for 11 common native plants, as well as sunflower seeds (Helianthus annuus L.), within a tropical deciduous forest in Jalisco, Mexico. Removal values were high in Delonyx regia (Bojer) Raf. (90%), Crescentia alata Kunth. (87%), H. annus (81%), Pithecellobium dulces (Roxb.) Benth (81%), Albizia occidentalis Brandegee (80%), Coccolob...

181 ABSTRACT: The nutritive value of leaves from eight different browse trees and shrubs were analyzed. They include Ficus polita, Ficus thonningii, Batryospermum paradoxum, Kigalia africana, Celtis integuifolis, Khaya senegalensis, Leptadenia lancifolia, and Ziziphus abyssinica. were collected from Gwoza, in Borno, State, Nigeria. The browse samples were analyzed for chemical composition, fibr...

Several North American broad-leaved tree species range from the northern United States at approximately 47 degrees N to moist tropical montane forests in Mexico and Central America at 15-20 degrees N. Along this gradient the average minimum temperatures of the coldest month (T (Jan)), which characterize annual variation in temperature, increase from -10 to 12 degrees C and tree phenology change...

The pH and buffer capacity of dry wood flakes from eleven southern species and their effects on gel time of phenol formaldehyde (PF) oriented strandboard resin with and without zinc borate addition were investigated in this study. It was shown that the pH of the hardwood flakes was acidic, with white oak being the most acidic (pH = 4.60) and elm nearly neutral (pH = 6.93). Southern pine flakes ...

Afforestation of contaminated areas is considered as a possible strategy for reduction of contaminations. In the present study, the effects of lead (Pb) and cadmium (Cd) were investigated on chlorophyll fluorescence parameters (Fv/Fm, Fo, and Fm), photosynthetic pigments (chlorophyll a, b, and total chlorophyll), and proline in one-year-old seedlings of Celtis caucasica and Robinia pseudoacacia...