Keyword search (4,163 papers available)

"Lawrence ER" Authored Publications:

Title Authors PubMed ID
1 Global assessment of effective population sizes: Consistent taxonomic differences in meeting the 50/500 rule Clarke SH; Lawrence ER; Matte JM; Gallagher BK; Salisbury SJ; Michaelides SN; Koumrouyan R; Ruzzante DE; Grant JWA; Fraser DJ; 38613250
BIOLOGY
2 Macrogenetics reveals multifaceted influences of environmental variation on vertebrate population genetic diversity across the Americas Lawrence ER; Pedersen EJ; Fraser DJ; 37365672
BIOLOGY
3 Varying genetic imprints of road networks and human density in North American mammal populations Habrich AK; Lawrence ER; Fraser DJ; 34178111
BIOLOGY
4 Conservation through the lens of (mal)adaptation: Concepts and meta-analysis. Derry AM, Fraser DJ, Brady SP, Astorg L, Lawrence ER, Martin GK, Matte JM, Negrín Dastis JO, Paccard A, Barrett RDH, Chapman LJ, Lane JE, Ballas CG, Close M, Crispo E 31417615
BIOLOGY
5 Geo-referenced population-specific microsatellite data across American continents, the MacroPopGen Database. Lawrence ER, Benavente JN, Matte JM, Marin K, Wells ZRR, Bernos TA, Krasteva N, Habrich A, Nessel GA, Koumrouyan RA, Fraser DJ 30944329
BIOLOGY

 

Title:Macrogenetics reveals multifaceted influences of environmental variation on vertebrate population genetic diversity across the Americas
Authors:Lawrence ERPedersen EJFraser DJ
Link:https://pubmed.ncbi.nlm.nih.gov/37365672/
DOI:10.1111/mec.17059
Publication:Molecular ecology
Keywords:biodiversity gradientenvironmental variablesgenetic diversitymacrogeneticspopulation geneticsvertebrates
PMID:37365672 Category: Date Added:2023-06-27
Dept Affiliation: BIOLOGY

Description:

The broad scale distribution of population-specific genetic diversity (GDP ) across taxa remains understudied relative to species diversity gradients, despite its relevance for systematic conservation planning. We used nuclear DNA data collected from 3678 vertebrate populations across the Americas to assess the role of environmental and spatial variables in structuring the distribution of GDP , a key component of adaptive potential in the face of environmental change. We specifically assessed non-linear trends for a metric of GDP, expected heterozygosity (HE ), and found more evidence for spatial hotspots and cold spots in HE rather than a strict pattern with latitude. We also detected inconsistent relationships between HE and environmental variables, where only 11 of 30 environmental comparisons among taxa groups were statistically significant at the .05 level, and the shape of significant trends differed substantially across vertebrate groups. Only one of six taxonomic groups, freshwater fishes, consistently showed significant relationships between HE and most (four of five) environmental variables. The remaining groups had statistically significant relationships for either two (amphibians, reptiles), one (birds, mammals), or no variables (anadromous fishes). Our study highlights gaps in the theoretical foundation upon which macrogenetic predictions have been made thus far in the literature, as well as the nuances for assessing broad patterns in GDP among vertebrate groups. Overall, our results suggest a disconnect between patterns of species and genetic diversity, and underscores that large-scale factors affecting genetic diversity may not be the same factors as those shaping taxonomic diversity. Thus, careful spatial and taxonomic-specific considerations are needed for applying macrogenetics to conservation planning.





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