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- Mast seeding, the synchronous and highly variable production of seed crops by perennial plants, is a population-level phenomenon and has cascading effects in ecosystems. Mast seeding studies are typically conducted at the population/species level. Much less is known about synchrony in mast seeding between species because the necessary long-term data are rarely available. To investigate synchrony between species within communities, we used long-term data from seven forest communities in the U.S. Long-Term Ecological Research (LTER) network, ranging from tropical rainforest to boreal forest....AuthorsJalene M. LaMontagne, David F. Greene, E. Penelope Holland, Jill F. Johnstone, Mark Schulze, Jess K. Zimmerman, Nicholas J. Lyon, Angel Chen, Tom E. X. Miller, Katherine Nigro, Rebecca S. Snell, Jessica H. Barton, V. Bala Chaudhary, Natalie L. Cleavitt, Elizabeth E. Crone, Walter D. Koenig, Diana Macias, Ian S. Pearse, Miranda D. RedmondKeywordsSourceEcology Letters. 27: e14498.Year2024
- The transformation of roundwood into sawn timber is crucial in Mexico, where the industry faces challenges in both the quality and quantity of products, requiring technological improvements to minimize waste and enhance competitiveness. In this context, the objective of this study was to compare the production of traditional and modern sawmills based on the sawing coefficient, total product yield, and the economic revenues generated. The study was conducted in Guachochi, Chihuahua, a region with cold temperate forests. Two types of sawmills were evaluated: traditional (private company) and...AuthorsJoel Rascon-Solano, Oscar Alberto Aguirre-Calderon, Eduardo Alanís-Rodriguez, Javier Jimenez-Perez, Eduardo Trevino-Garza, Juan Abel Najera-Luna, Jose IniguezKeywordsSourceMadera y Bosques. 30(2): e3022580.Year2024
- Sanddune wallflower (Erysimum capitatum [Douglas ex Hook] Greene) belongs to the Erysimeae tribe of the Brassicaceae or mustard family (Al-Shehbaz 2010).AuthorsCorey Gucker, Nancy L. ShawKeywordsSourceIn: Gucker, C.L.; Shaw, N.L., eds. Western forbs: Biology, ecology, and use in restoration. Reno, NV: Great Basin Fire Science Exchange. Online: https://westernforbs.org/species/sanddune-wallflower-erysimum-capitatum/.Year2024
- Objective: In the U.S. Pacific Northwest, climate change is increasing air temperatures, decreasing warm season (April-September) streamflow, and increasing cool season (October-March) streamflow. Warmer water temperatures may alter conditions for migratory coldwater fishes like the Bull Trout Salvelinus confluentus. Consequently, an understanding of Bull Trout migration and survival is critical for species conservation and restoration. In the Salmon River basin, Idaho, 1992 and 1993 transpired to be two of the most opposing extreme years among the past three decades for warm season water...AuthorsPatti J. Wohner, Russ F. Thurow, James T. PetersonKeywordsSourceTransactions of the American Fisheries Society. 153: 326-346.Year2024
- Snow leopards (Panthera uncia) inhabit the mountainous regions of High Asia, which experienced serial glacial contraction and expansion during climatic cycles of the Pleistocene. The corresponding impacts of glacial vicariance may have alternately promoted or constrained genetic differentiation to shape the distribution of genetic lineages and population structure. We studied snow leopard phylogeography across High Asia by examining range-wide historical and contemporary genetic structure with mitochondrial DNA and microsatellite markers. We genotyped 182 individuals from across snow...AuthorsImogene A. Cancellare, Byron Weckworth, Anthony Caragiulo, Kristine L. Pilgrim, Thomas M. McCarthy, Alisher Abdullaev, George Amato, Xiaoxing Bian, Elena Bykova, Isabela Dias-Freedman, Mariya Gritsina, Lauren M. Hennelly, Safia Janjua, Orjan Johansson, Shannon Kachel, Alexander Karnaukhov, Miroslav Korablev, Zairbek Kubanychbekov, Rahim Kulenbekov, Xuchang Liang, Purevjav Lkhagvajav, Tara K. Meyer, Bariushaa Munkhtsog, Bayaraa Munkhtsog, Muhammad A. Nawaz, Stephane Ostrowski, Mikhail Paltsyn, Andrey Poyarkov, Salisa Rabinowitz, Thomas Rooney, Tatjana Rosen, Viatcheslav V Rozhnov, Benjamin N. Sacks, Michael K. Schwartz, Kyle P. McCarthyKeywordsSourceBiodiversity and Conservation. 33: 3961-3979.Year2024
- Physical and genetic isolation are recognized as significant threats to wildlife, especially in large carnivores inhabiting fragmented landscapes. We conducted an initial genetic assessment of pumas (Puma concolor) using 19 microsatellite loci for the emblematic puma population in the Torres del Paine UNESCO Biosphere Reserve in southernmost Chile, which exhibits some distinctive phenology that some local people speculate may be due to isolation and inbreeding depression. We extracted DNA from 385 scats collected in the field, of which 96 were identified as puma, representing 20 unique...AuthorsL. Mark Elbroch, Byron V Weckworth, Kristine L. Pilgrim, Omar Ohrens, Nicolas Lagos, Stephanny Arroyo-Arce, Mauricio Montt, Dania Goic, Michael K. SchwartzKeywordsSourceDiversity. 16: 581.Year2024
- Predation is a fundamental process that shapes ecological communities. The impact of mountain lion (Puma concolor) predation on their prey, however, is a debated topic among wildlife managers and their primary constituents, hunters and conservationists in North America. Here we present a perspective and highlight recent literature on the direct and indirect (i.e., non-consumptive) effects of mountain lion predation on 2 of its primary prey species in western North America, mule and black-tailed deer (Odocoileus hemionus). We assert that direct effects of mountain lion predation outweigh...AuthorsTavis Forrester, Heiko U. WittmerKeywordsSourceCanadian Wildlife Biology and Management. 13(2): 1-40.Year2024
- Thornton and Murray (2024; hereafter TM) sought to further our understanding of historical and future Canada lynx (Lynx canadensis) habitat in the contiguous USA to guard against shifting baseline syndrome and aid conservation planning for this federally threatened species. We commend the intent of this exercise, however several issues limit the application of TM to lynx conservation, including model design and validation, extensive extrapolation, ambiguous source data, and plausibility of the results.AuthorsJacob S. Ivan, Karen E. Hodges, Joseph D. Holbrook, Ron A. Moen, Lucretia E. E. Olson, John R. Squires, Jennifer H. VashonKeywordsSourceBiological Conservation. 299: 110836.Year2024
- Fire-adapted species have evolved to exploit resources in heterogenous landscapes that presumably maximize energy acquisition and minimize energetic expenditure. However, limited empirical work exists demonstrating the explicit energetic mechanisms that drive such adaptive responses to fire across diverse landscapes.AuthorsKate McGinn, Ceeanna Zulla, Marilyn Wright, Zachary Wilkinson, Brian Dotters, Kevin Roberts, John J. Keane, M. Zachariah Peery, Gavin M. JonesKeywordsSourceLandscape Ecology. 39:182.Year2024
- Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in conservation biology research designs. Here we propose a novel multiproxy method to learn from former fisheries stewards by generating archaeological data on past salmonid population parameters. We used a newly developed, high throughput qPCR (HT-qPCR) chip,...AuthorsRoss Salerno, Remi Murdoch, Joanna Elmore, Taylor Wilcox, Jens Hegg, Catherine S. Austin, Michael LeMoine, Jade Luckhurst, Alexandra Fraik, Molly CarneyKeywordsSourceArchaeometry. https://doi.org/10.1111/arcm.13058.Year2024