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A Call For Ethical And Responsible Treatment Of Invasive Species By Recreational Anglers, Kevin A. Adeli
A Call For Ethical And Responsible Treatment Of Invasive Species By Recreational Anglers, Kevin A. Adeli
Human–Wildlife Interactions
Invasive species pose a prominent threat to global biodiversity, with aquatic ecosystems being particularly susceptible. In an effort to limit the spread of aquatic invasive species, numerous public awareness programs have been launched, and several regions have enacted “must-kill” angling regulations, which prohibit the live release of invasive fish species when captured. Many education programs, however, demonize invasive species and lack any instruction for humane euthanasia. This unbalanced approach has translated into widespread mistreatment of invasive species among recreational anglers. This piece addresses these concerns by discussing their significance and providing recommendations for how education programs can adopt a more …
Opinion The “Non-Native” Enigma, Danny Caudill, Gretchen Caudill
Opinion The “Non-Native” Enigma, Danny Caudill, Gretchen Caudill
Human–Wildlife Interactions
Non-native species have been introduced to ecosystems throughout the world, and in some instances, have degraded the invaded system. Consequently, the distinction between native and non-native species has become an integral component of conservation planning. Recently however, the conservation value of the distinction has been questioned. We examine how the native versus non-native dichotomy is intrinsically ambiguous, which therefore limits the conservation utility of the designation in and of itself. A large degree of uncertainty exists as to whether many species are or are not native. Measures outside the non-native dichotomy (e.g., impacts, evolutionary ecology, paleontology) could better inform conservation …
Attempts To Produce Alien Addition Lines In Triticum Durum, Domenico Pignone
Attempts To Produce Alien Addition Lines In Triticum Durum, Domenico Pignone
Herbarium Publications
Aneuploid stocks in durum wheat are few, and alien additions are particularly rare. The present contribution describes the results of a program aimed at the addition of alien chromosomes to tetraploid wheat. Aegilops caudata, Ae. longissima and Dasypyrum villosum were used as chromosome donors. The crossing program involved the production of amphidiploids with the wheat cytoplasm and the recurrent crossing with durum wheat pollen. IS monosomic addition (2n= 29) plants were obtained and partly selfed and/or backcrossed to wheat. Two disomic addition (2n = 30) plants, possessing two different Ae. caudata chromosomes, were obtained; unfortunately they were very weak and …