Here, we used genomic tools to investigate the nature of this pattern of resilience. Yet, cisco extirpations do not show a clear latitudinal pattern, suggesting that local environmental factors and potentially local adaptation may influence resilience. Populations of cisco, Coregonus artedi, in inland lakes have experienced numerous extirpations along the southern edge of their range in recent decades, which are thought to result from environmental degradation and loss of cold, well‐oxygenated habitat as lakes warm. This is particularly true at the edge of a species range, where populations often persist at the limits of their environmental tolerances. The dueling effects of selection and drift in a limited pool of genetic diversity make the responses of small populations to environmental perturbations erratic and difficult to predict. He had lain in bed night after night drifting into sleep on a tide of euphoria.Small, isolated populations present a challenge for conservation.Vass regarded her flushed face, then let his eyes drift slowly down the length of her slender, dressing-gown-clad figure.Idly she let her eyes drift over his desk, over the orderly piles of papers and files arranged there.Frowning, she let her mind drift back to the events of two years ago.Idly, he let his gaze drift across the horizon.let your gaze/eyes/thoughts/mind etc drift Primo had drifted out of the conversation.Twenty-four hours until kick-off and the hyperbole was drifting out of control.Louis music drifts out of clubs large and small throughout the city.Eventually we drift out into the leafy park behind the museum. It would also be in line with the gradual drift towards fuel tax harmonisation across the Community.Even the most saintly of people would drift towards complacency and arrogance after such a long period.She stepped aside into the doorway of the next room while Luch drifted out and down the stair.Vargas Llosa's politics gradually drifted to the right.A fine trail of dust dislodged from the door frame and drifted slowly to the ground.Ideas drifted quietly like falling petals into his mind.The smoke drifted lazily away to the westward, revealing to us the gray lines steadily advancing.It felt as though she'd drifted into some dreamlike watery paradise.We will pay special attention to the underlying social problems in high-crime areas, particularly to prevent young people drifting into crime.All night Julie drifted in and out of consciousness.They presently look like a team that could drift farther into oblivion each week.I walked at his side as if I were drunk, bumping into him, drifting crazily off.Gradually they started drifting away to the main building to eat and sleep.5 DN snow/sand if snow, sand etc drifts, the wind blows it into large piles 6 → let something drift → drift apart → drift off → See Verb table Examples from the Corpus drift 4 money/prices if values, prices, share s etc drift, they gradually change The dollar drifted lower against the yen today. 3 CHANGE/MAKE something DIFFERENT change to gradually change from being in one condition, situation etc into another without realizing it drift into She was just drifting into sleep when the alarm went off. let your gaze/eyes/thoughts/mind etc drift Idly she let her eyes drift over his desk. drift from something to something The conversation drifted from one topic to another. drift into I just drifted into teaching, really. 2 without plan TRAVEL to move, change, or do something without any plan or purpose drift around/along etc Jenni spent the year drifting around Europe. Smoke drifted up from the jungle ahead of us.
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