scholarly journals Critically Endangered Fijian Crested Iguana (Brachylophus vitiensis) Shows Habitat Preference for Globally Threatened Tropical Dry Forest

2009 ◽  
Vol 63 (2) ◽  
pp. 223-242 ◽  
Author(s):  
Clare Morrison ◽  
Gunnar Keppel ◽  
Nunia Thomas ◽  
Isaac Rounds ◽  
Peter S. Harlow
Keyword(s):  
Habitat Preference ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Critically Endangered

Nesting ecology of the critically endangered Fijian Crested Iguana Brachylophus vitiensis in a Pacific tropical dry forest

2009 ◽  
Vol 15 (2) ◽  
pp. 135 ◽  
Author(s):  
Suzanne F. Morrison ◽  
Peter S. Harlow ◽  
J. Scott Keogh
Keyword(s):  
National Level ◽  
Tropical Dry Forest ◽  
Incident Radiation ◽  
Dry Forest ◽  
Critically Endangered ◽  
Anthropogenic Factors ◽  
Successful Implementation ◽  
Nesting Ecology ◽  
Nest Sites ◽  
Site Evaluation

Tropical dry forest (TDF) ecosystems occur throughout tropical and subtropical zones and one of their primary characteristics is that they are structurally and functionally constrained by seasonal fluctuations in moisture levels. Organisms within them synchronize growth and reproduction with water availability and many exhibit adaptations to drought conditions. We examined the previously unknown nesting ecology of the Critically Endangered Fijian Crested Iguana Brachylophus vitiensis a TDF specialist, on the Fijian island of Yadua Taba over two field seasons. In Fiji, the TDF and the endemic Crested Iguanas are threatened on a national level by anthropogenic factors and Yadua Taba Island remains the only protected site. Evaluation of adult female reproductive status revealed that only 52% of adult females reproduced in a given year. We suggest that female Crested Iguanas have adopted a biennial mode of reproduction in response to resource limitation.We found no evidence for communal nesting or nest site defence by females. All nest burrows were constructed on the forest floor in shaded areas. Mean nest temperatures (24.5�C), levels of site openness (10.9%) and total incident radiation (2.57 MJ m2 day) recorded at nest sites were less than those reported for other Iguaninae. Mean egg size (17.9 g) was large relative to most Iguaninae and was independent of the small mean clutch size (2.9 eggs). Mean incubation period was extremely long (256 days) and spanned the eight-month dry season. Mean hatching success also was high (87%). We examine reproductive strategy in relation to the environmental conditions of the TDF habitat on Yadua Taba. This research provides a broader understanding of Crested Iguana nesting ecology and is a step towards the successful implementation of the Species Recovery Plan for this species.

scholarly journals Hymenochaete cifuentesii, H. potosina, and H. raduloides spp. nov. from the tropical dry forest of Mexico

Mycotaxon ◽  
2018 ◽  
Vol 133 (3) ◽  
pp. 499-512 ◽  
Author(s):  
Magdalena Contreras-Pacheco ◽  
Ricardo Valenzuela ◽  
Tania Raymundo ◽  
Leticia Pacheco
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest

Dynamic seed zones to guide climate-smart seed sourcing for tropical dry forest restoration in Colombia

2021 ◽  
Vol 490 ◽  
pp. 119127
Author(s):  
Tobias Fremout ◽  
Evert Thomas ◽  
Kelly Tatiana Bocanegra-González ◽  
Carolina Adriana Aguirre-Morales ◽  
Anjuly Tatiana Morillo-Paz ◽  
...  
Keyword(s):  
Forest Restoration ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Seed Zones ◽  
Dry Forest Restoration ◽  
Seed Sourcing

scholarly journals Spondias tuberosa Arruda (Anacardiaceae), a threatened tree of the Brazilian Caatinga?

2016 ◽  
Vol 77 (3) ◽  
pp. 542-552 ◽  
Author(s):  
J. Mertens ◽  
J. Germer ◽  
J. A. Siqueira Filho ◽  
J. Sauerborn
Keyword(s):  
Tropical Dry Forest ◽  
Threat Assessment ◽  
Red List ◽  
Dry Forest ◽  
International Union ◽  
Population Decrease ◽  
Domestic Ruminants ◽  
Spondias Tuberosa ◽  
Iucn Assessment ◽  
Additional Income

Abstract Spondias tuberosa Arr., a fructiferous tree endemic to the northeast Brazilian tropical dry forest called Caatinga, accounts for numerous benefits for its ecosystem as well as for the dwellers of the Caatinga. The tree serves as feed for pollinators and dispersers as well as fodder for domestic ruminants, and is a source of additional income for local smallholders and their families. Despite its vantages, it is facing several man-made and natural threats, and it is suspected that S. tuberosa could become extinct. Literature review suggests that S. tuberosa suffers a reduced regeneration leading to population decrease. At this juncture S. tuberosa cannot be considered threatened according to the International Union for Conservation of Nature Red List Categories and Criteria, as it has not yet been assessed and hampered generative regeneration is not considered in the IUCN assessment. The combination of threats, however, may have already caused an extinction debt for S. tuberosa. Due to the observed decline in tree density, a thorough assessment of the S. tuberosa population is recommended, as well as a threat assessment throughout the entire Caatinga.

Unraveling the drivers of plant taxonomic and phylogenetic β-diversity in a human-modified tropical dry forest

2021 ◽  
Author(s):  
Kátia F. Rito ◽  
Víctor Arroyo-Rodríguez ◽  
Jeannine Cavender-Bares ◽  
Edgar E. Santo-Silva ◽  
Gustavo Souza ◽  
...  
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest ◽  
Β Diversity

scholarly journals Relations between stomatal closure, leaf turgor and xylem vulnerability in eight tropical dry forest trees

2003 ◽  
Vol 26 (3) ◽  
pp. 443-450 ◽  
Author(s):  
T. J. BRODRIBB ◽  
N. M. HOLBROOK ◽  
E. J. EDWARDS ◽  
M. V. GUTIÉRREZ
Keyword(s):  
Stomatal Closure ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Forest Trees ◽  
Xylem Vulnerability
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