To assess ecological consequences of bushmeat hunting in African lowland rainforests, we compared paired sites, with high and low hunting pressure, in three areas of southeastern Nigeria. In hunted sites, populations of important seed dispersers—both small and large primates (including the Cross River gorilla, Gorilla gorilla diehli)—were drastically reduced. Large rodents were more abundant in hunted sites, even though they are hunted. Hunted and protected sites had similar mature tree communities dominated by primate-dispersed species....
Data from: Restriction site-associated DNA sequencing generates high-quality single nucleotide polymorphisms for assessing hybridization between bighead and silver carp in the United States and ChinaJames T. Lamer, Gregory G. Sass, Jason Q. Boone, Zarema H. Arbieva, Stefan J. Green & John M. Epifanio
Bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix) are invasive species and listed as US federally injurious species under the Lacy Act. They have established populations in much of the Mississippi River Basin (MRB; Mississippi, Illinois, and Missouri rivers) and are capable of producing fertile hybrids and complex introgression. Characterizing the composition of this admixture requires a large set of high-quality, evolutionarily conserved, diagnostic genetic markers to aid in the identification and management of...
Data from: Disentangling genetic and prenatal sources of familial resemblance across ontogeny in a wild passerine.Jarrod D. Hadfield, Elizabeth A. Heap, Florian Bayer, Elizabeth A. Mittell & Nicholas M. A. Crouch
Cross-fostering experiments are widely used by quantitative geneticists to study genetics and by behavioral ecologists to study the effects of prenatal in- vestment. Generally, the effects of genes and prenatal investment are confounded and the interpretation given to such experiments is largely dependent on the in- terests of the researcher. Using a large-scale well controlled experiment on a wild population of blue tits (Cyanistes caeruleus) we are able to partition variation in body mass across...
Data from: Two decades of genetic profiling yields first evidence of natal philopatry and long-term fidelity to parturition sites in sharksKevin A. Feldheim, Samuel H. Gruber, Joseph D. DiBattista, Elizabeth A. Babcock, Steven A. Kessel, Andrew P. Hendry, Ellen K. Pikitch, Mary V. Ashley & Demian D. Chapman
Sharks are a globally threatened group of marine fishes that often breed in their natal region of origin. There has even been speculation that female sharks return to their exact birthplace to breed (“natal philopatry”), which would have important conservation implications. Genetic profiling of lemon sharks (Negaprion brevirostris) from 20 consecutive cohorts (1993-2012) at Bimini, Bahamas showed that certain females faithfully gave birth at this site for nearly two decades. At least six females born...
Data from: Intra-clutch differences in egg characteristics mitigate the consequences of age-related hierarchies in a wild passerine.Jarrod D. Hadfield, Elizabeth A. Heap, Florian Bayer, Elizabeth A. Mittell & Nicholas M. A. Crouch
The relative age of an individual's siblings is a major cause of fitness variation in many species. In Blue tits (Cyanistes caeruleus) we show that age hierarchies are predominantly caused by incubation pre-clutch completion, such that last laid eggs hatch later than early laid eggs. However, after statistically controlling for incubation behavior late laid eggs are shown to hatch more quickly than early laid eggs reducing the amount of asynchrony. By experimentally switching early and...
University of Illinois at Chicago5
University of Edinburgh2
University of Jos1
Field Museum of Natural History1
King Abdullah University of Science and Technology1
Western Illinois University1
Bimini Biological Field Station Foundation1
Wisconsin Department of Natural Resources1