Treesearch
Search National Treesearch
Displaying 221 - 230 of 1,330 Publications
- Forests across the U.S. and U.S. aliated islands of the Caribbean and Pacific constitute rich and dynamic social-ecological systems that, while heterogeneous in many ways, share certain characteristics and trends that underscore the utility of sustainability assessments that go beyond single jurisdictional e orts. This paper summarizes a recent e ort to assess the sustainability of tropical island forests of and politically aliated with the U.S. using the Montréal Process criteria and indicator framework (MP C&I), which address ecological, social, economic, and institutional dimensions...AuthorsKathleen McGinley, Guy Robertson, Kathleen FridayKeywordsSourceForestsYear2019
- Limited financial resources coupled with competing social demands may require novel approaches for biodiversity conservation. Within the Bahamas archipelago, subtropical dry forest (“coppice”) provides habitat for many resident and migratory bird species including the U.S. federally endangered Kirtland’s warbler (Setophaga kirtlandii). On the islands, this migratory bird relies heavily on fruits of shrubs in early-successional coppice. Evidence indicates shrub species of particular importance in the bird’s diet may not be generally widespread, while attempts to actively manage for these...AuthorsGenie M. Fleming, David N. Ewert, Joseph M. Wunderle Jr.KeywordsSourceCaribbean Journal of Science, Vol. 49, No. 2-3, 157-184.Year2019
- Freshwater migratory shrimp in Puerto Rico depend on watershed connectivity, from stream headwaters to the ocean, to complete their life cycle. Moreover, shrimp populations in different watersheds are known to be connected in an island‐wide metapopulation. However, low‐head dams paired with water intakes on streams draining the El Yunque National Forest (EYNF) reduce streamflow. Here, we examine the cumulative effects of low‐head dams on shrimp habitat connectivity over 37 years across seven EYNF watersheds. We calculate total and refugia habitat connectivity (where refugia habitat is...AuthorsJessica Chappell, S. Kyle McKay, Mary C. Freeman, Catherine M. PringleKeywordsSourceRiver Research and ApplicationsYear2019
- We meet few people in our lives who command unblemished lifelong respect and affection based on both their scientific accomplishments and their admirable personal qualities, and it is with profound sorrow that we recognize the passing of someone with these attributes, one of the most outstanding individuals in the tribe of field ornithologists— James Warren Wiley.AuthorsNoel F R. Snyder, Herbert Raffaele, Arturo Kirkconnell, Joseph M. Wunderle Jr.SourceThe AukYear2019
- Transpiration in humid tropical forests modulates the global water cycle and is a key driver of climate regulation. Yet, our understanding of how tropical trees regulate sap flux in response to climate variability remains elusive. With a progressively warming climate, atmospheric evaporative demand [i.e., vapor pressure deficit (VPD)] will be increasingly important for plant functioning, becoming the major control of plant water use in the twenty-first century. Using measurements in 34 tree species at seven sites across a precipitation gradient in the neotropics, we determined how the...AuthorsCharlotte Grossiord, Bradley Christoffersen, Aura M. Alonso-Rodríguez, Kristina Anderson-Teixeira, Heidi Asbjornsen, Luiza Maria T. Aparecido, Z. Carter Berry, Christopher Baraloto, Damien Bonal, Isaac Borrego, Benoit Burban, Jeffrey Q. Chambers, Danielle S. Christianson, Matteo Detto, Boris Faybishenko, Clarissa G. Fontes, Claire Fortunel, Bruno O. Gimenez, Kolby J. Jardine, Lara Kueppers, Gretchen R. Miller, Georgianne W. Moore, Robinson Negron-Juarez, Clément Stahl, Nathan G. Swenson, Volodymyr Trotsiuk, Charu Varadharajan, Jeffrey M. Warren, Brett T. Wolfe, Liang Wei, Tana E. Wood, Chonggang Xu, Nate G. McDowellSourceOecologiaYear2019
- Sustainable forest management requires a broad range of well-trained practitioners, scientists, educators, extensionists, and other professionals across multiple disciplines working in government, academia, nongovernmental organizations, and the private sector. Forest sustainability benefits from education, technology transfer, and other programs and services, as well as from sufficient and sound infrastructure—buildings, roads, utilities, communications, etc., for the protection, production, and delivery of forest goods and services. This indicator provides information on the capacity of...AuthorsFrederick W. Cubbage, Kathleen McGinleySourceU.S. Forest Sustainability Indicator 7.50.Year2019
- AuthorsJason M. Townsend, Rafaela Aguilera Román, Felisa Collazo Torres, José González Díaz, Chandra Degia, Hiram González Alonso, Floyd E. Hayes, Lyndon John, Steven C. Latta, Lourdes Mugica Valdés, Nils Navarro Pacheco, Fernando Nuñez-García, Carlos Peña, Herbert Raffaele, Pedro Regalado, Ernesto Reyes Mouriño, Yaroddy Rodríguez, Bárbara Sánchez Oria, Helen Snyder, Joseph M. Wunderle Jr.KeywordsSourceThe Journal of Caribbean OrnithologyYear2019
- Coarse dead wood is an important component of forest carbon stocks, but it is rarely measured in Amazon forests and is typically excluded from regional forest carbon budgets. Our study is based on line intercept sampling for fallen coarse dead wood conducted along 103 transects with a total length of 48 km matched with forest inventory plots where standing coarse dead wood was measured in the footprints of larger areas of airborne lidar acquisitions. We developed models to relate lidar metrics and Landsat time series variables to coarse dead wood stocks for intact, logged, burned, or...AuthorsMarcos A. S. Scaranello, Michael Keller, Marcos Longo, Maiza N. dos-Santos, Veronika Leitold, Douglas C. Morton, Ekena R. Pinagé, Fernando Del Bon. Espírito-SantoKeywordsSourceBiogeosciencesYear2019
- Global ecology – the study of the interactions among the Earth’s ecosystems, land, atmosphere and oceans – depends crucially on global observations: this paper focuses on space-based observations of global terrestrial ecosystems. Early global ecology relied on an extrapolation of detailed site-level observations, using models of increasing complexity. Modern global ecology has been enabled largely by vegetation indices (greenness) from operational space-based imagery but current capabilities greatly expand scientific possibilities. New observations from spacecraft in orbit allowed an...AuthorsFabian D. Schneider, David Schimel, Anthony Bloom, Kevin Bowman, Kerry Cawse-Nicholson, Calyton Elder, Antonio Ferraz, Joshua Fisher, Glynn Hulley, Junjie Liu, Troy Magney, Victoria Meyer, Charles Miller, Nicholas Parazoo, Ryan Pavlick, Podest Erika, Saatchi Sassan, Natasha Stavros, Michael Keller, Townsend Philip, Zheng TingKeywordsSourceNew PhytologistYear2019
- Margarops fuscatus (Pearly-eyed Thrasher) is the Caribbean’s premier avian supertramp. Concurrent with urban development, it continues to expand its geographical and habitat range throughout the region, especially in the Greater Antilles. Through personal research, supplemented by relevant publications, unpublished results from others’ research and casual observations, as well as checklists including Pearly-eyed Thrasher sightings submitted to Cornell University’s eBird online database, we document the species’ apparent colonization of Hispaniola. Most sightings of pioneering Pearly-eyed...AuthorsWayne J. Arendt, María M. Paulino, Luis R. Paulino, Marvin A. Tórrez, Oksana P. LaneKeywordsSourceThe Urban NaturalistYear2019