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Millions of dams impair watershed connectivity across the globe and have severely affected migratory fish populations. Fishways offer upstream passage...
Read moreEffects of disease and environment on competitive interactions among wheat genotypes were investigated. Wheat genotypes (5) were grown in up to 6 diff...
Read moreThe demography of the annual grass weed A. sterilis subsp. ludoviciana was studied during 3 consecutive years on populations growing in winter wheat c...
Read moreMarine protected areas are increasingly being recommended as an essential component of the management of exploited marine species, but virtually no at...
Read moreA mathematical model of the dynamics of a virus disease in a perennial plant population was developed. The population was divided into healthy, latent...
Read moreA methodology that mathematically measures the stability of patches of vegetation identified from remotely sensed data is presented. The methodology w...
Read moreThree successive generations of Spodoptera exempta (Wlk.) were observed on cereal crops and grasses at Salisbury Research Station, Rhodesia, during Ja...
Read moreInvestigations were made of arthropods in a silty, poorly drained, gray soil under dry grassland, irrigated sugar cane, and under natural grassland re...
Read more3 populations of cocksfoot from Norway and 1 from Portugal were grown at 5, 15 or 25°C with 8 or 24 h light/day. In short days at low temperature, the...
Read moreIncrement core samples at b.h. were taken from 15 trees in each of 7 stands (aged 22-68 yr) in North Zealand, Denmark, in Oct.-Nov. 1984. Radial incre...
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