The species and changes in this list have been observed and reported by reputable sources, but have not been confirmed by peer review.
Asian Tiger Mosquito (Aedes albopictus)
Asian Tiger Mosquitoes have been moving north since their introduction to the United States of America from tropical and subtropical Asia. In the past decade they've been spotted in southern New England, and in 2011, they showed up in southern Massachusetts three months earlier than in previous years.
American Lobster shedding patterns are no longer reliable. Lobsters are also moving to deeper water earlier in the year, and the bulk of the catch is occurring later in the year compared to historical harvests. Source: Interview with fisherman Island Institute assessment
Young flounder are experiencing increased predation by shrimp that are spending more time in waters that were once too cold for them in the winter.
In much of the United States, including New England, moose are suffering under an increasing tick burden. When winters aren't cold enough to kill off ticks, some moose end up with enough of the parasites to suck so much of their blood that they waste away and die from too many ticks.
The maple sugar industry is suffering because of the fluctuations in seasonal temperature patterns. While the surface impacts of this are on the sugar farmers, it is clear that there is also a change in the physiological patterns of the trees, since it's their reaction to temperature that enables the maple sugar industry to function.
Additional changes have been published in peer reviewed literature, and can be seen here