نتایج جستجو برای: destruction of natural habitats
تعداد نتایج: 21201521 فیلتر نتایج به سال:
Brahminy kite or Halistur indus is one of the protected eagle species in Indonesia. The presence environment very important because many environmental health indicators. Based on last research H. population Indonesia, has decreased due to several factors such as pesticide overuse, destruction natural habitats, illegal hunting, and trading. Therefore, conservation programs are maintain its natur...
We review the status of five vernal pool creation and restoration projects in San Diego County that were prompted by efforts to mitigate for damage to or destruction of Pogogyne abramsii and Eryngium aristulatum ssp. parishii populations. The first project was begun in 1981 and the latest in 1992. Some degree of success, defined as persistence of significant populations of the target species, w...
Local adaptation to divergent environmental conditions can promote population genetic differentiation even in the absence of geographic barriers and hence lead to speciation. But what mechanisms contribute to reproductive isolation among diverging populations? We tested for natural and sexual selection against immigrants in a fish species inhabiting (and adapting to) nonsulphidic surface habita...
Marine construction is a growing source of biodiversity loss in our oceans. The ecological impacts marine constructions arise both from their destruction and degradation natural habitats, but also flat often featureless surfaces, which provide little protection to life predation environmental stressors (Bulleri, Chapman 2010; Airoldi et al. 2005). net effect native biodiversity, spread pest spe...
background: ecological data are important in the vector control management of mosquitoes. there is scattered published information about the larval habitat characteristics and ecology of the genus anopheles (diptera: culicidae) in iran and most of available data is in relation to malaria vectors in southern iran. methods: this cross sectional investigation was carried out to study the mosquito...
alkaline waste spoils [4]). Some argue that the increase in hard surfaces in cities represents a replication of many of the key features of natural habitat templates [7] found in unproductive rocky areas [5,8,9]. Urban habitats probably provide a continuum of selective novelty, from remnant natural habitats or anthropogenic analogs of other habitats to wholly novel environments. Such research c...
The distribution of intertidal organisms can often be determined by processes operating at the time of recruitment. Recruitment has been demonstrated to influence the composition of assemblages of natural habitats, but there is less evidence of its importance in artificial habitats. Coastal areas are becoming increasingly urbanised, with the replacement of many natural habitats by man-made stru...
Ten to twelve thousand years ago, when humans first came from the north to enter the vast tropical evergreen lowland forests of Mexico and Central America, these forests stretched for what must have seemed an eternity, from the Veracruz lowlands 2,600 km southeastward into northern South America and beyond. Even eight to ten millennia later, when the Spanish conquistadores arrived on the shores...
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