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result sql = BACKGROUND : Current global warming affects the composition and dynamics of mammalian communities and can increase extinction risk; however, long-term effects of warming on mammals are less understood. Dietary reconstructions inferred from stable isotopes of fossil herbivorous mammalian tooth enamel document environmental and climatic changes in ancient ecosystems, including C(3)/C(4) transitions and relative seasonality.
METHODOLOGY/PRINCIPAL FINDINGS : Here, we use stable carbon and oxygen isotopes preserved in fossil teeth to document the magnitude of mammalian dietary shifts and ancient floral change during geologically documented glacial and interglacial periods during the Pliocene (approximately 1.9 million years ago) and Pleistocene (approximately 1.3 million years ago) in Florida. Stable isotope data demonstrate increased aridity, increased C(4) grass consumption, inter-faunal dietary partitioning, increased isotopic niche breadth of mixed feeders, niche partitioning of phylogenetically similar taxa, and differences in relative seasonality with warming.
CONCLUSION/SIGNIFICANCE : Our data show that global warming resulted in dramatic vegetation and dietary changes even at lower latitudes (approximately 28 degrees N). Our results also question the use of models that predict the long term decline and extinction of species based on the assumption that niches are conserved over time. These findings have immediate relevance to clarifying possible biotic responses to current global warming in modern ecosystems.
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result sql = Effects of global warming on ancient mammalian communities and their environments.
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char = n;code = 110
char = d;code = 100
char = ;code = 32
char = d;code = 100
char = y;code = 121
char = n;code = 110
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = m;code = 109
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = u;code = 117
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = r;code = 114
char = i;code = 105
char = s;code = 115
char = k;code = 107
char = ;;code = 59
char = ;code = 32
char = h;code = 104
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = n;code = 110
char = g;code = 103
char = -;code = 45
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = m;code = 109
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = t;code = 116
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = D;code = 68
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = l;code = 108
char = ;code = 32
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = v;code = 118
char = o;code = 111
char = r;code = 114
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = m;code = 109
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = a;code = 97
char = m;code = 109
char = e;code = 101
char = l;code = 108
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = v;code = 118
char = i;code = 105
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = C;code = 67
char = (;code = 40
char = 3;code = 51
char = );code = 41
char = /;code = 47
char = C;code = 67
char = (;code = 40
char = 4;code = 52
char = );code = 41
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = O;code = 79
char = L;code = 76
char = O;code = 79
char = G;code = 71
char = Y;code = 89
char = /;code = 47
char = P;code = 80
char = R;code = 82
char = I;code = 73
char = N;code = 78
char = C;code = 67
char = I;code = 73
char = P;code = 80
char = A;code = 65
char = L;code = 76
char = ;code = 32
char = F;code = 70
char = I;code = 73
char = N;code = 78
char = D;code = 68
char = I;code = 73
char = N;code = 78
char = G;code = 71
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = H;code = 72
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = l;code = 108
char = ;code = 32
char = t;code = 116
char = e;code = 101
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = m;code = 109
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = i;code = 105
char = f;code = 102
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = r;code = 114
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = g;code = 103
char = e;code = 101
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = g;code = 103
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = g;code = 103
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = P;code = 80
char = l;code = 108
char = i;code = 105
char = o;code = 111
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = 1;code = 49
char = .;code = 46
char = 9;code = 57
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = y;code = 121
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = o;code = 111
char = );code = 41
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = P;code = 80
char = l;code = 108
char = e;code = 101
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = o;code = 111
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = 1;code = 49
char = .;code = 46
char = 3;code = 51
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = y;code = 121
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = o;code = 111
char = );code = 41
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = F;code = 70
char = l;code = 108
char = o;code = 111
char = r;code = 114
char = i;code = 105
char = d;code = 100
char = a;code = 97
char = .;code = 46
char = ;code = 32
char = S;code = 83
char = t;code = 116
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = t;code = 116
char = a;code = 97
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char = d;code = 100
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = (;code = 40
char = 4;code = 52
char = );code = 41
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = u;code = 117
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = -;code = 45
char = f;code = 102
char = a;code = 97
char = u;code = 117
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = e;code = 101
char = e;code = 101
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result sql = BACKGROUND : Current global warming affects the composition and dynamics of mammalian communities and can increase extinction risk; however, long-term effects of warming on mammals are less understood. Dietary reconstructions inferred from stable isotopes of fossil herbivorous mammalian tooth enamel document environmental and climatic changes in ancient ecosystems, including C(3)/C(4) transitions and relative seasonality.
METHODOLOGY/PRINCIPAL FINDINGS : Here, we use stable carbon and oxygen isotopes preserved in fossil teeth to document the magnitude of mammalian dietary shifts and ancient floral change during geologically documented glacial and interglacial periods during the Pliocene (approximately 1.9 million years ago) and Pleistocene (approximately 1.3 million years ago) in Florida. Stable isotope data demonstrate increased aridity, increased C(4) grass consumption, inter-faunal dietary partitioning, increased isotopic niche breadth of mixed feeders, niche partitioning of phylogenetically similar taxa, and differences in relative seasonality with warming.
CONCLUSION/SIGNIFICANCE : Our data show that global warming resulted in dramatic vegetation and dietary changes even at lower latitudes (approximately 28 degrees N). Our results also question the use of models that predict the long term decline and extinction of species based on the assumption that niches are conserved over time. These findings have immediate relevance to clarifying possible biotic responses to current global warming in modern ecosystems.
Publication: PLoS ONE 2009 ;4(6)::e5750. :doi: 10.1371/journal.pone.0005750.
Publication Date: 2009
Study Author(s): DeSantis, Larisa R G;Feranec, Robert S;MacFadden, Bruce J;
Institution: Department of Biology, University of Florida, Gainesville, FL, USA. [email protected]
Shortcut link to this study:
Publication Date: 2009
Study Author(s): DeSantis, Larisa R G;Feranec, Robert S;MacFadden, Bruce J;
Institution: Department of Biology, University of Florida, Gainesville, FL, USA. [email protected]
Shortcut link to this study:
BACKGROUND : Current global warming affects the composition and dynamics of mammalian communities and can increase extinction risk; however, long-term effects of warming on mammals are less understood. Dietary reconstructions inferred from stable isotopes of fossil herbivorous mammalian tooth enamel document environmental and climatic changes in ancient ecosystems, including C(3)/C(4) transitions and relative seasonality.
METHODOLOGY/PRINCIPAL FINDINGS : Here, we use stable carbon and oxygen isotopes preserved in fossil teeth to document the magnitude of mammalian dietary shifts and ancient floral change during geologically documented glacial and interglacial periods during the Pliocene (approximately 1.9 million years ago) and Pleistocene (approximately 1.3 million years ago) in Florida. Stable isotope data demonstrate increased aridity, increased C(4) grass consumption, inter-faunal dietary partitioning, increased isotopic niche breadth of mixed feeders, niche partitioning of phylogenetically similar taxa, and differences in relative seasonality with warming.
CONCLUSION/SIGNIFICANCE : Our data show that global warming resulted in dramatic vegetation and dietary changes even at lower latitudes (approximately 28 degrees N). Our results also question the use of models that predict the long term decline and extinction of species based on the assumption that niches are conserved over time. These findings have immediate relevance to clarifying possible biotic responses to current global warming in modern ecosystems.
METHODOLOGY/PRINCIPAL FINDINGS : Here, we use stable carbon and oxygen isotopes preserved in fossil teeth to document the magnitude of mammalian dietary shifts and ancient floral change during geologically documented glacial and interglacial periods during the Pliocene (approximately 1.9 million years ago) and Pleistocene (approximately 1.3 million years ago) in Florida. Stable isotope data demonstrate increased aridity, increased C(4) grass consumption, inter-faunal dietary partitioning, increased isotopic niche breadth of mixed feeders, niche partitioning of phylogenetically similar taxa, and differences in relative seasonality with warming.
CONCLUSION/SIGNIFICANCE : Our data show that global warming resulted in dramatic vegetation and dietary changes even at lower latitudes (approximately 28 degrees N). Our results also question the use of models that predict the long term decline and extinction of species based on the assumption that niches are conserved over time. These findings have immediate relevance to clarifying possible biotic responses to current global warming in modern ecosystems.
PMID: 19492043
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