ANÁLISIS. Create a Visme. Researcher. Researcher. Researcher. Researcher. Questions Vascular epiphytes make up about 9 % of all vascular plants globally but are clearly underrepresented in the temperate zones.
The accidental epiphytic occurrence of terrestrial species, in contrast, is common at these latitudes and can provide important insights in the evolution of obligate epiphytes. Here we present the results of the first two annual censuses of a planned long‐term study on accidental epiphytes. We particularly aim to identify: (1) the abundance and species richness of accidental epiphytes, (2) the dynamics of accidental epiphytism, (3) occupied substrates and microsites and (4) suitable host tree species. Location Harz Mountains, Germany, Central Europe. Methods We surveyed more than 1200 trees in a low mountain range in two consecutive years for epiphytic individuals of vascular plants considering host tree species and occupied microsites.
Results Conclusion For the majority of the observed species, epiphytism indeed is an accidental phenomenon. Researcher. Researcher. Error - Cookies Turned Off. Error - Cookies Turned Off. Introduction Foundation species are spatially dominant, habitat‐forming organisms that enhance the richness and abundance of ecological communities (Bertness and Callaway 1994, Bruno et al. 2003).
Trees, freshwater macrophytes, seagrasses, reef‐forming bivalves, and corals are all examples of such foundation species which create habitat for other species with their own body tissue (Jeppesen et al. 1992, Ellison et al. 2005, Coker et al. 2014, Christianen et al. 2016, van der Zee et al. 2016, Ali and Yan 2017). A major factor thought to underlie foundation species’ enhancements of associated communities is their positive effect through their ability to modify their habitat (Govenar 2010).
Habitat structure is suggested to enhance species richness through a number of potentially codependent non‐trophic mechanisms (Kovalenko et al. 2012). Spanish moss is a rootless bromeliad distributed from North Carolina, USA, to central Brazil. Methods Study site Experimental design. Error - Cookies Turned Off. Introduction.
Error - Cookies Turned Off. Tropical forests are estimated to host over half of all global terrestrial biodiversity (Pimm & Raven, 2000), yet are being rapidly lost due to deforestation and land‐use change (Gibson et al., 2011; Newbold et al., 2015).
Understanding the current status of tropical biodiversity and developing effective conservation and management strategies thus depends on improving our understanding outside of intact forest reserves (Chazdon, Harvey, et al., 2009) and the role of human‐modified forests for conservation. Despite recent progress (Newbold et al., 2015; Peters et al., 2019), our knowledge of how forest‐use intensity affects tropical biodiversity along natural environmental gradients remains limited. Ecological patterns are often studied along elevational gradients, which provide the opportunity to study effects of different ecological and evolutionary factors on biodiversity patterns over relatively short geographical distances (Körner, 2007). 2.1 Sampling design Note 2.2 Data collection.
Surface roots as a new ecological zone for occurrence of vascular epiphytes: a case study on Pseudobombax trees on inselbergs. Error - Cookies Turned Off. Premise Conversion of primary forests to pastures is a major cause of habitat fragmentation in the tropics.
Fragmentation is expected to impede gene flow for many plant species that are restricted to remaining forest fragments. Epiphytes may be especially vulnerable to this effect of forest fragmentation because they depend on host trees. However, trees that remain in pastures may enhance connectivity across the landscape for epiphyte species that can thrive on such trees. To investigate this possibility, we studied the genetic structures of two such species on isolated pasture trees and surrounding forest, in relation to their local abundances in different habitat types and aspects of their reproductive biology including pollen and seed dispersal agents, and looked for evidence of increased or diminished gene flow.
Methods Results Conclusions. Error - Cookies Turned Off. Error - Cookies Turned Off. Twitter for Academics. The Online Academic embracing social media & internet services to enhance your career Skip to content Twitter for Academics A five-part guide to using Twitter as an academic: PART ONE.
PART TWO. PART THREE. PART FOUR. PART FIVE. **BUY THE BOOK, Twitter for Academics** Only $3.19US/£2.21/$4.04CAN Click here for more details More about Twitter: Share this: Like this: Leave a Reply. Tadashi Fukami (@TadashiFukami) - “Geographical variation in community divergence: insights from tropical forest monodominance by ectomycorrhizal trees” Posted on Tadashi Fukami, Mifuyu Nakajima, Claire Fortunel, Paul V.
A. Fine, Christopher Baraloto, Sabrina E. Russo, and Kabir G. Peay A new study suggests the answer to this question may lie in the fungi that grow in tree roots Why do we have “monodominance” in some tropical forests, but not in others? Tropical forests are the quintessence of biodiversity.