By F W Howard; et al
Read or Download Insects on palms PDF
Best environmental books
This quantity offers the 1st complete precis of ways plant, animal, and microbial groups advance lower than the tough stipulations following dramatic normal disturbances. The authors research the elemental ideas that make sure surroundings improvement and practice the overall principles to the pressing functional desire for selling the reclamation of broken lands.
Laotian Daughters specializes in second-generation environmental justice activists in Richmond, California. Bindi Shah's path-breaking ebook charts those younger women's efforts to enhance the degraded stipulations of their group and explores the methods their activism and political practices withstand the destructive stereotypes of race, category, and gender linked to their ethnic crew.
- Sustainable Design: HCI, Usability and Environmental Concerns
- Reviews of Environmental Contamination and Toxicology: Continuation of Residue Reviews
- Spatiotemporal Environmental Health Modelling: A Tractatus Stochasticus
- Environmental Policy and Market Structure
- Roadmap to Sustainable Textiles and Clothing: Environmental and Social Aspects of Textiles and Clothing Supply Chain
Extra resources for Insects on palms
Cavity. Fruits and seeds vary widely across the spectrum of the palm family in shape, colour, size and other characteristics. The embryo appears as a small plug on the endosperm. Under conditions favourable for germination, which generally include relatively high temperatures and moisture, the embryo produces its ﬁrst leaf, or plumule, which in most species precedes the production of the root. e. once maturity is achieved they ﬂower periodically. The age at which a palm comes into bearing is determined by genetics and secondarily by environmental factors.
For example, a particular species may typically begin producing ﬂowers and fruit at 10 years, but environmental factors may delay or accelerate maturation by a year or two. In most palms, once fruit production is ini- tiated, it becomes an annual event. For example, the date palm ﬂowers in spring and fruits are mature by autumn. Under the best conditions for production, coconut palms initiate fruit development about monthly, coinciding with the monthly production of fronds, so that coconuts can be harvested throughout the year.
The leaves of the rattan cut and twist. Twist, twist, cut and twist. (From a traditional Philippine ceremonial dance, in Willard R. Trask, 1966, The Unwritten Song, Macmillan, New York) The diversity of products derived from coconut palms is well known. According to Indonesian folklore, there are as many uses for this palm as there are days of the year (Punchihewa, 1995). A sample of some of the less well-known products derived from coconut and other palms follows. People of the Amazon region are astute at ﬁnding uses for diverse palms: corks for demijohns are cut from the petioles of Mauritia ﬂexuosa, blowpipes are made from the slender stems of Iriartea deltoidea and Bactris gasipaes and arrowheads are made from the hard ‘wood’ of Wettinia spp.