نتایج جستجو برای: sarcophila meridionalis
تعداد نتایج: 305 فیلتر نتایج به سال:
Despite recent efforts to characterize innovative individuals within a species, we still know very little about the ontogeny of innovation ability. A number of studies have found that innovation rates are correlated with personality traits, such as neophilia and exploration. Juvenile birds are frequently more neophilic and explorative, yet few studies have found evidence of age-related differen...
New Zealand Journal of Ecology (1998) 22(1): 11-16 ©New Zealand Ecological Society The apparent imbalance in the sex ratio may have been a reflection of methods used to capture birds, but if it is real, it suggests that female kaka might suffer much higher mortality, possibly associated with nesting behaviours, than do males. The long-term effects on this population will be serious. Disproporti...
Enemy release of exotic plants from soil pathogens has been tested by examining plant-soil feedback effects in repetitive growth cycles. However, positive soil feedback may also be due to enhanced benefit from the local arbuscular mycorrhizal fungi (AMF). Few studies actually have tested pathogen effects, and none of them did so in arid savannas. In the Kalahari savanna in Botswana, we compared...
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