Results 11 to 20 of about 10,074 (131)

Flexible drought deciduousness in a neotropical understory herb. [PDF]

Am J Bot, 2022
Progression of leaf loss and growth between wet seasons. Abstract Premise Adaptive divergence across environmental gradients is a key driver of speciation. Precipitation seasonality gradients are common in the tropics, yet drought adaptation is nearly unexplored in neotropical understory herbs. Here, we examined two recently diverged neotropical spiral
Harenčár JG, Ávila-Lovera E, Goldsmith GR, Chen GF, Kay KM.   +4 more
europepmc   +2 more sources

Gene Flow and Vertical Stratification of Pollination in the Bat-Pollinated Liana <i>Marcgravia longifolia</i>. [PDF]

Ecol Evol
This study investigates pollen dispersal, vertical stratification of gene flow, and spatial genetic structure in the bat‐pollinated liana Marcgravia longifolia in a western Amazonian forest. Flowers are produced from the forest floor to the canopy, allowing analysis of pollination across strata.
Gottstein M, Thiel S, Vornhagen JL, Mengel C, Tschapka M, Heymann EW, Heer K.   +6 more
europepmc   +2 more sources

Collared Peccary Wallows are Hubs of Animal Activity and Diversity in a Central American Wet Forest. [PDF]

Ecol Evol
Collared peccary wallows are used by a diverse assemblage of vertebrates in a Central American tropical wet forest. Wallows had significantly higher vertebrate activity and diversity compared to surrounding forest. Wallow visitors included 13 amphibian, 2 reptile, 11 bird, and 16 mammal species, engaged in behaviors including reproduction, drinking ...
Eckhoff A, Medina-Charriez A, Zerger M, Romero A, Hackney D, Aide TM, Reider K.   +6 more
europepmc   +2 more sources

Ectomycorrhizal fungi and the nitrogen economy of Nothofagus in southern Patagonia. [PDF]

Ecol Evol
Ectomycorrhizal fungi play essential roles in nitrogen cycling and plant nutrient uptake at high latitudes. However, they have disproportionately been studied in boreal forests dominated by evergreen conifers. We characterized ectomycorrhizal associations and the nitrogen economy of co‐occurring deciduous and evergreen angiosperms from the genus ...
Truong C, Gabbarini LA, Moretto A, Escobar JM, Smith ME.   +4 more
europepmc   +2 more sources

Growth-defense trade-offs promote habitat isolation between recently-diverged species. [PDF]

Ecol Evol
Growth–defense trade‐offs have long been implicated in tropical plant diversity, but how do these tradeoffs contribute to reproductive isolation? This study characterizes growth–defense trade‐offs between two recently diverged tropical plants and explore their role in maintaining strong habitat isolation.
Harenčár JG, Salazar-Amoretti D, García-Robledo C, Kay KM.   +3 more
europepmc   +2 more sources

Source height and contact with terrestrial soil drive transplanted epiphyte performance

Journal of Ecology, Volume 111, Issue 11, Page 2388-2400, November 2023., 2023
Tropical vascular epiphytes, such as this orchid Peristeria pendula, performed worse when experimentally transplanted to new substrates in contact with terrestrial soil, versus substrates just above the soil surface. The results are some of the first empirical data supporting the epiphyte enemy escape hypothesis.
Michelle Elise Spicer, Josué Ortega
wiley   +1 more source

Vertically stratified frugivore community composition and interaction frequency in a liana fruiting across forest strata

Biotropica, Volume 55, Issue 3, Page 650-664, May 2023., 2023
Our findings suggest a continuous shift in the frugivore community composition along the vertical gradient of a plant species fruiting across forest strata, from a few generalized frugivores in the understorey to a diverse set of specialized frugivores in the canopy.
Sarina Thiel, Franziska Willems, Nina Farwig, Finn Rehling, Dana G. Schabo, Matthias Schleuning, Ney Shahuano Tello, Till Töpfer, Marco Tschapka, Eckhard W. Heymann, Katrin Heer   +10 more
wiley   +1 more source

Bird species occupancy trends in Southeast Mexico over 1900–2020: Accounting for sighting record absences

Journal of Animal Ecology, Volume 92, Issue 3, Page 606-618, March 2023., 2023
This article accounts for species absences before occupancy analyses, addressing a long‐standing concern of whether absence is true or due to low sampling effort. The authors affiliate long‐term bird species trends with functional traits in a lowland tropical rainforest landscape in southeast Mexico to help guide land management and conservation ...
Dallas R. Levey, Michael A. Patten, Alejandro Estrada   +2 more
wiley   +1 more source

Disentangling direct from indirect effects of habitat disturbance on multiple components of biodiversity

Journal of Animal Ecology, Volume 91, Issue 11, Page 2220-2234, November 2022., 2022
Given that anthropogenic disturbance is one of the most important factors influencing ecological communities, a better understanding of the reciprocity of the various components of biodiversity is needed to predict the development of disturbed natural communities.
Nina Isabell Schwensow, Alexander Christoph Heni, Julian Schmid, B. Karina Montero, Stefan Dominik Brändel, Tanja Katharina Halczok, Gerd Mayer, Gloria Fackelmann, Kerstin Wilhelm, Dominik Werner Schmid, Simone Sommer   +10 more
wiley   +1 more source

Structural and compositional dimensions of phytochemical diversity in the genus Piper reflect distinct ecological modes of action

Journal of Ecology, Volume 110, Issue 1, Page 57-67, January 2022., 2022
Crude extract 1H NMR diversity synthesizes the compositional diversity and structural complexity of phytochemical mixtures. Plants can develop chemical diversity through different combinations of structural and compositional biosynthetic mechanisms; thus, methods incorporating both dimensions of phytochemical diversity can provide new theoretical ...
Casey S. Philbin, Lee A. Dyer, Christopher S. Jeffrey, Andrea E. Glassmire, Lora A. Richards   +4 more
wiley   +1 more source