Rana boylii

Number of Pages: 2Integrative BiologyGeological Science

Eleutherodactylus augusti

Number of Pages: 4Integrative BiologyGeological Science

Rana muscosa

Number of Pages: 2Integrative BiologyGeological Science

Lampropeltis zonata

Number of Pages: 4Integrative BiologyGeological Science

Systematics of Microhylid Frogs, Genus Oreophryne, from the North Coast Region of New Guinea

Fig. 4. Regression of internarial span on snout­vent length in two samples of Oreophryne biroi from Papua New Guinea. Squares, specimens from Madang Prov.; crosses, specimens from East Sepik Prov.Published as part of <i>ZWEIFEL, RICHARD G., MENZIES, JAMES I. & PRICE, DAVID, 2003, Systematics of Microhylid Frogs, Genus Oreophryne, from the North Coast Region of New Guinea, pp. 1-32 in American Museum Novitates 3415</i> on page 10, DOI: 10.1206/0003-0082(2003)415<0001:SOMFGO>2.0.CO;2, <a href="http://zenodo.org/record/10111440">http://zenodo.org/record/10111440</a&gt

The 2018 European heatwave led to stem dehydration but not to consistent growth reductions in forests

Heatwaves exert disproportionately strong and sometimes irreversible impacts on forest ecosystems. These impacts remain poorly understood at the tree and species level and across large spatial scales. Here, we investigate the effects of the record-breaking 2018 European heatwave on tree growth and tree water status using a collection of high-temporal resolution dendrometer data from 21 species across 53 sites. Relative to the two preceding years, annual stem growth was not consistently reduced by the 2018 heatwave but stems experienced twice the temporary shrinkage due to depletion of water reserves. Conifer species were less capable of rehydrating overnight than broadleaves across gradients of soil and atmospheric drought, suggesting less resilience toward transient stress. In particular, Norway spruce and Scots pine experienced extensive stem dehydration. Our high-resolution dendrometer network was suitable to disentangle the effects of a severe heatwave on tree growth and desiccation at large-spatial scales in situ, and provided insights on which species may be more vulnerable to climate extremes

Description and Relationships of a New Species of Microhylid Frog (Genus Barygenys) from Papua New Guinea

Barygenys parvula, the seventh species of its genus, is described from the Adelbert Mountains. The genus is endemic to Papua New Guinea, and the new species is the first of its genus known from the north coast of New Guinea. Interspecific relationships among Barygenys are discussed, and a revised key to the species is presented

Rana tarahumarae

Number of Pages: 2Integrative BiologyGeological Science