@article{fdi:010063899, title = {{C}himpanzee population structure in {C}ameroon and {N}igeria is associated with habitat variation that may be lost under climate change}, author = {{C}lee, {P}. {R}. {S}. and {A}bwe, {E}. {E}. and {A}mbahe, {R}. {D}. and {A}nthony, {N}. {M}. and {F}otso, {R}. and {L}ocatelli, {S}abrina and {M}aisels, {F}. and {M}itchell, {M}. {W}. and {M}organ, {B}. {J}. and {P}okempner, {A}. {A}. and {G}onder, {M}. {K}.}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {T}he {N}igeria-{C}ameroon chimpanzee ({P}an troglodytes ellioti) is found in the {G}ulf of {G}uinea biodiversity hotspot located in western equatorial {A}frica. {T}his subspecies is threatened by habitat fragmentation due to logging and agricultural development, hunting for the bushmeat trade, and possibly climate change. {A}lthough {P}. t. ellioti appears to be geographically separated from the neighboring central chimpanzee ({P}. t. troglodytes) by the {S}anaga {R}iver, recent population genetics studies of chimpanzees from across this region suggest that additional factors may also be important in their separation. {T}he main aims of this study were: 1) to model the distribution of suitable habitat for {P}. t. ellioti across {C}ameroon and {N}igeria, and {P}. t. troglodytes in southern {C}ameroon, 2) to determine which environmental factors best predict their optimal habitats, and 3) to compare modeled niches and test for their levels of divergence from one another. {A} final aim of this study was to examine the ways that climate change might impact suitable chimpanzee habitat across the region under various scenarios. {R}esults: {E}cological niche models ({ENM}s) were created using the software package {M}axent for the three populations of chimpanzees that have been inferred to exist in {C}ameroon and eastern {N}igeria: (i) {P}. t. troglodytes in southern {C}ameroon, (ii) {P}. t. ellioti in northwestern {C}ameroon, and (iii) {P}. t. ellioti in central {C}ameroon. {ENM}s for each population were compared using the niche comparison test in {ENM}tools, which revealed complete niche divergence with very little geographic overlap of suitable habitat between populations. {C}onclusions: {T}hese findings suggest that a positive relationship may exist between environmental variation and the partitioning of genetic variation found in chimpanzees across this region. {ENM}s for each population were also projected under three different climate change scenarios for years 2020, 2050, and 2080. {S}uitable habitat of {P}. t. ellioti in northwest {C}ameroon / eastern {N}igeria is expected to remain largely unchanged through 2080 in all considered scenarios. {I}n contrast, {P}. t. ellioti in central {C}ameroon, which represents half of the population of this subspecies, is expected to experience drastic reductions in its ecotone habitat over the coming century.}, keywords = {{CAMEROUN} ; {NIGERIA}}, booktitle = {}, journal = {{BMC} {E}volutionary {B}iology}, volume = {15}, numero = {}, pages = {2 [13 ]}, ISSN = {1471-2148}, year = {2015}, DOI = {10.1186/s12862-014-0275-z}, URL = {https://www.documentation.ird.fr/hor/fdi:010063899}, }