Results 51 to 60 of about 90,712 (307)

Quantifying temporal change in biodiversity : challenges and opportunities

, 2012
Growing concern about biodiversity loss underscores the need to quantify and understand temporal change. Here, we review the opportunities presented by biodiversity time series, and address three related issues: (i) recognizing the characteristics of ...
Gaston, Kevin J, Kosnik, M A, Morlon, H, Øvreås, L, Kosnik, Matthew A, McGill, B, Gaston, Kevin J., Colwell, Robert K., Gotelli, Nicholas J., Buckland, Stephen Terrence, Chao, Anne, Gotelli, N J, Buckland, Stephen T., Gaston, K J, Vellend, M, Ovreås, Lise, Chazdon, Robin L, Studeny, Angelika, Curtis, Tom, Kosnik, Matthew A., Buckland, S T, McCune, Jenny L, Mumby, P J, Mumby, Peter J., Morlon, Hélène, Gotelli, Nicolas J, Mumby, Peter J, Studeny, A, Curtis, T, Dornelas, Maria, McCune, J L, Dornelas, M, Colwell, R K, Chazdon, Robin L., McGill, Brian, Colwell, Robert K, Vellend, Mark, Magurran, Anne, Magurran, Anne E., Chao, A, Øvreås, Lise, Magurran, A E, McCune, Jenny L.   +42 more
core   +1 more source

13C NMR spectroscopy characterization of particle-size fractionated soil organic carbon in subalpine forest and grassland ecosystems

Botanical Studies, 2017
Background Soil organic carbon (SOC) and carbon (C) functional groups in different particle-size fractions are important indicators of microbial activity and soil decomposition stages under wildfire disturbances.
Yo-Jin Shiau, Jenn-Shing Chen, Tay-Lung Chung, Guanglong Tian, Chih-Yu Chiu   +4 more
doaj   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Many winners, few losers: stable bird populations on an Afrotropical mountain amidst climate change

Frontiers in Conservation Science
Organisms in mountainous areas are frequently exposed to climatic extremes and are among the most vulnerable to climate change. Long-term studies on birds along elevational gradients, which are vital in understanding species dynamics, are rare in ...
Mwangi Wambugu, Mwangi Wambugu, Laura Martínez-Íñigo, Bernard Amakobe, Bernard Amakobe, Mwangi Githiru, Mwangi Githiru   +6 more
doaj   +1 more source

Stage‐Specific H3K14 and H3K23 Succinylation Orchestrates Insect Metamorphosis and Oogenesis

Advanced Science, EarlyView.
Stage‐specific succinylation of histone H3 at lysine 14 and 23 differentially controls insect metamorphosis and oogenesis through distinct GPCR‐PKC signaling cascades, revealing an evolutionarily conserved epigenetic mechanism that coordinates key life‐history traits.
Yu‐Pu Jing, Lunjie Li, Libin Yang, Lin‐Jie Zhang, Qiang Yan, Ci Zhang, Zanrong Wen, Guangze Yu, Qian Li, Shutang Zhou   +9 more
wiley   +1 more source

A hidden Markov model-based acoustic cicada detector for crowdsourced smartphone biodiversity monitoring

, 2013
In recent years, the field of computational sustainability has striven to apply artificial intelligence techniques to solve ecological and environmental problems.
Merrett, GV, Merrett, Geoff V., Zilli, D, Merrett, Geoff, Parson, Oliver, Rogers, A, Zilli, Davide, Rogers, Alex, Parson, O, Rogers, Alexander   +9 more
core   +1 more source

Combining Time‐Stamped Insect Sampling With eDNA‐Metabarcoding of Guano to Reconstruct Community Interactions

Ecology and Evolution
Understanding the temporal dynamics of predator–prey interactions is the basis for predicting behavioral responses to climate or other environmental changes.
Tamara R. Hartke, Manus Wittenhorst, Martin Koch, Christoph Scherber, Sönke Twietmeyer, Sarah J. Bourlat, Michel Böhme, Ameli Kirse   +7 more
doaj   +1 more source

Projected responses of North American grassland songbirds to climate change and habitat availability at their northern range limits in Alberta, Canada

Avian Conservation and Ecology, 2016
Across North America, grassland songbirds have undergone steep population declines over recent decades, commonly attributed to agricultural intensification.
Amy E. Nixon, Ryan J. Fisher, Diana Stralberg, Erin M. Bayne, Dan R. Farr   +4 more
doaj   +1 more source

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

Advanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu, Siyuan Cai, Longlong Xia, Jagdish K. Ladha, Xiaoyuan Yan, Xu Zhao   +5 more
wiley   +1 more source

Coping With Production Risk: Effects of Sown Plant Diversity on the Attractiveness of Crop Insurance in Grasslands

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Increased frequency of extreme weather events, particularly droughts, threatens grassland farming by destabilizing yields and farms' economic viability. We examine, theoretically and through numerical simulations, how sown plant diversity (natural insurance) influences the attractiveness of indemnity and drought index insurance (formal ...
Nicolas Alou, Sergei Schaub, Martin Quaas, Robert Finger   +3 more
wiley   +1 more source