7 Works

Political Responsibility for Climate Change

Alice Roberts

Genetic differentiation and overexploitation history of the critically endangered Lehmann’s Poison Frog: Oophaga lehmanni

Mileidy Betancourth-Cundar, Pablo Palacios-Rodríguez, Daniel Mejía-Vargas, Andrea Paz & Adolfo Amézquita
Species conservation with fragmented and endangered populations must be based on a prior and thorough knowledge of the structure and population dynamics. Oophaga lehmanni is a dendrobatid species endemic of Colombia and is restricted to its type locality. This species has a fragmented distribution and is considered as critically endangered mainly due to habitat destruction and overexploitation. Oophaga lehmanni exhibits phenotypic variation in the dorsal color pattern (red and yellow morphs). We reconstructed the overexploitation...

Me, Myself, and Unno: Writing the Queer Caribbean Self into Digital Community

Kelly Baker Josephs
Caribbean autobiography in the mid-twentieth century grew as a method of combatting aporias in literary production and epistemological models, with novelists in particular writing themselves into visibility. But this tradition was predominantly male and decidedly heterosexual. Even as the Caribbean literary canon slowly diversified toward the end of the twentieth century with the inclusion of various life stories, the voices of queer writers remained at low volume, almost muted. This essay reads how those voices...

The geometry of resource constraint: an empirical study of the golden snub-nosed monkey

Rong Hou, Colin Chapman, Jessica Rothman, He Zhang, Kang Huang, Songtao Guo, Baoguo Li & David Raubenheimer
1. Apposite conceptualization and measurement of resource variation is critical for understanding many issues in ecology, including ecological niches, persistence and distribution of populations, the structure of communities, and population resilience to perturbations. 2. We apply the nutritional geometry framework to conceptualise and quantify the responses of a temperate-living primate, the golden snub-nosed monkey (Rhinopithecus roxellana) to variation in resource quality and quantity and in nutrient requirements associated with seasonal environments. 3. We present a...

Data from: Using three-dimensional geometric morphometric and dental topographic analyses to infer the systematics and paleoecology of fossil treeshrews (Mammalia, Scandentia)

Keegan Selig, Eric Sargis, Stephen Chester & Mary Silcox
Treeshrews are small, Indomalayan mammals closely related to primates. Previously, three-dimensional geometric morphometric analyses were used to assess patterns of treeshrew lower second molar morphology, which showed that the position of molar landmarks covaries with intraordinal systematics. Another analysis used dental topographic metrics to test patterns of functional dental morphology and found that molar curvature, complexity, and relief were an effective means for examining patterns of variation in treeshrew dietary ecology. Here, we build on...

Biogeographic barriers, Pleistocene refugia, and climatic gradients in the southeastern Nearctic drive diversification in corn snakes (Pantherophis guttatus complex)

Edward Myers, Alexander McKelvy & Frank Burbrink
The southeastern Nearctic is a biodiversity hotspot that is also rich in cryptic species. This richness can be explained by numerous hypotheses affecting divergence, which include biogeographic barriers, adaptation to climatic gradients across this region, and Pleistocene speciation in glacial refugia. However, previous phylogeographic studies have both supported and refuted these hypotheses. Therefore, while one or more of these hypotheses may explain diversification, it is likely that taxa are forming within this region in species-specific...

Evolution of breeding plumages in birds: a multiple-step pathway to seasonal dichromatism in New World Warblers (Aves: Parulidae)

Ryan Terrill, Jared Wolfe & Glenn Seeholzer
Many species of birds show distinctive seasonal breeding and nonbreeding plumages. A number of hypotheses have been proposed for the evolution of this seasonal dichromatism, specifically related to the idea that birds may experience variable levels of sexual selection relative to natural selection throughout the year. However, these hypotheses have not addressed the selective forces that have shaped molt, the underlying mechanism of plumage change. Here, we examined relationships between life-history variation, the evolution of...

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