Recovery of tree-related microhabitats in a tropical rainforest after agricultural abandonment

Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung

Beitragende

  • Ronja Hausmann - , Julius-Maximilians-Universität Würzburg (Autor:in)
  • Sebastián Escobar - , Universidad de las Américas - Ecuador (Autor:in)
  • Nico Blüthgen - , Technische Universität Darmstadt (Autor:in)
  • H. Martin Schaefer - , Fundación de Conservación Jocotoco (Autor:in)
  • Felicity L. Newell - , Texas A&M University, Universität Bern (Autor:in)
  • Maria José Endara - , Universidad de las Américas - Ecuador (Autor:in)
  • Juan Ernesto Guevara-Andino - , Universidad de las Américas - Ecuador (Autor:in)
  • Heike Feldhaar - , Universität Bayreuth (Autor:in)
  • Daniel Kraus - , Julius-Maximilians-Universität Würzburg (Autor:in)
  • Dominik Thom - , Professur für Waldbau (Autor:in)
  • Jörg Müller - , Julius-Maximilians-Universität Würzburg, Nationalpark Bayerischer Wald (Autor:in)

Abstract

The restoration of degraded tropical forests is a global priority to halt terrestrial biodiversity loss. However, the complexity and hyper diversity of tropical forests challenge the quantification of their recovery status. Unlike temperate forests, where tree-related microhabitats (TreMs) have been established as a surrogate for habitat diversity, TreMs have received little attention in the tropics. Here, we investigated the recovery of TreM profiles along a chronosequence of forest recovery ranging from cacao plantations and pastures to abandoned agricultural land (2 to 38 years), and old-growth forests in the Ecuadorian lowland Chocó forest. Our analysis accounted for sample incompleteness and different abundance weightings using Hill numbers. Based on 57 TreM types, we identified an overall increase in diversity over time. Pasture regenerations exhibited a steeper and more continuous shift of TreM diversity and composition along the recovery gradient, likely due to more remnant trees that retained TreMs, in contrast to cacao regenerations. Diversity, community composition and numerous typical TreM types show that old-growth forests maintain distinct TreM profiles. In addition, Ferns and hemiepiphytes had the highest number of positive co-occurrences with other TreMs, while stiltroots excluded both buttress roots and trunk base rot holes. Using multiple regression in distance matrices we identified tree species richness and light availability as the main drivers of TreM composition. Our TreM results call for a strategy of protecting old-growth forests with their unique and diverse TreM profiles and of favouring agricultural sites with remnant trees for restoration due to faster achievements in habitat diversity.

Details

OriginalspracheEnglisch
Aufsatznummer111739
FachzeitschriftBiological conservation
Jahrgang316
PublikationsstatusVeröffentlicht - Apr. 2026
Peer-Review-StatusJa

Externe IDs

ORCID /0000-0001-8091-6075/work/225495778

Schlagworte

Ziele für nachhaltige Entwicklung

  • SDG 15 – Lebensraum Land - Cacao plantation, Lowland tropical forest, Old-growth forest, Pasture, Recovery gradient, Tree-related microhabitats

ASJC Scopus Sachgebiete

Schlagwörter

  • Cacao plantation, Lowland tropical forest, Old-growth forest, Pasture, Recovery gradient, Tree-related microhabitats