Heterogeneity Studies of Cyrtophora citricola in Puerto Rico

Puerto Rico

of America, Children's Defense Fund, and Generations United have partnered to produce state and national GrandFacts fact sheets for grandparents and other relatives raising children. The state fact sheets include state-specific data and programs as well as information about foster care, public benefits, educational assistance and state laws. Visit www.grandfactsheets.org to find this and all Gr...

Slavery in Puerto Rico

University of Puerto Rico

Weed Controi, in Puerto Rico

Sugar cane growers in Puerto Rico are faced with problems of weed control as any other farmer in the world. He is faced with increased cost of production of cane, through higher labor and material costs. When labor costs were low, much of the weed control was done by many men using machetes and other implements. As every farmer knows "weeds are plants out of place." Since beginning of farming, ...

Coy Males and Seductive Females in the Sexually Cannibalistic Colonial Spider, Cyrtophora citricola

The abundance of sperm relative to eggs selects for males that maximize their number of mates and for females that choose high quality males. However, in many species, males exercise mate choice, even when they invest little in their offspring. Sexual cannibalism may promote male choosiness by limiting the number of females a male can inseminate and by biasing the sex ratio toward females becau...