Forest loss and fragmentation can promote the crowding effect in a forest-specialist primate

Landscape Ecology, Journal Year: 2021, Volume and Issue: 37(1), P. 147 - 157

Published: Sept. 4, 2021

Language: Английский

---

The role of protected and unprotected forest remnants for mammal conservation in a megadiverse Neotropical hotspot

Biological Conservation, Journal Year: 2021, Volume and Issue: 259, P. 109173 - 109173

Published: May 21, 2021

Language: Английский

---

A systematic review of energy and mass fluxes, and biogeochemical processes in seasonally dry tropical forests and cactus ecosystems

Journal of South American Earth Sciences, Journal Year: 2023, Volume and Issue: 126, P. 104330 - 104330

Published: April 6, 2023

Language: Английский

---

Seed dispersal effectiveness by a large‐bodied invasive species in defaunated landscapes

Biotropica, Journal Year: 2019, Volume and Issue: 51(6), P. 862 - 873

Published: Oct. 17, 2019

Abstract Animal‐dispersed plants are increasingly reliant on effective seed dispersal provided by small‐bodied frugivores in defaunated habitats. In the Neotropical region, non‐native wild pig ( Sus scrofa ) is expanding its distribution and we hypothesized that they can be a surrogate for services lost defaunation. We performed thorough analysis of their interaction patterns, frequencies, viability, characteristics shadows produce. found 15,087 intact seeds 56% stomachs 5,186 90% scats analyzed, 95% which were smaller than 10 mm diameter. Wild pigs third most disperser among 21 extant frugivore species feeding trail experiment terms quantity removed. Gut retention time was 70 ± 23 hr, indicating promote long‐distance dispersal. Seed survival after handling gut passage positively related with size, but large spat out only defecated intact, observed positive or neutral effect germination relative to manually de‐pulped seeds. Finally, deposition four times more frequent unsuitable suitable sites seedling recruitment establishment. effectiveness high dispersed variable quality service provided. Our study highlights negative effects delivered should examined case scenario. Portuguese available online material.

Language: Английский

---

Testing the keystone plant resource role of a flagship subtropical tree species (Araucaria angustifolia) in the Brazilian Atlantic Forest

Ecological Indicators, Journal Year: 2020, Volume and Issue: 118, P. 106778 - 106778

Published: Aug. 5, 2020

Ecological attributes enable the identification of Keystone Plant Resources (KPRs), including their community-wide contribution to vertebrate consumers, which are often highly threatened in terrestrial ecosystems. KPRs have been defined by intersecting four ecological that influence local communities frugivores: temporal redundancy (TR); degree consumer specificity (CS); reliability (RR); and resource abundance (RA). The conifer Araucaria angustifolia (Bert.) O. Kuntze (Araucaria) is main arborescent component Forests, within subtropical Atlantic Forest South America. large seeds (pinhão) heavily consumed faunas, consequently could be automatically as a KPR. However, no previous studies conceptually assessed pinhão KPR based on trophic interactions with vertebrates. Using empirical data comprehensive literature review, we examine trees can formally Forest. Our results show for first time according both its importance. cones exhibited low redundancy, specificity, high abundance, structuring associated consumers spatiotemporally. insights contribute understanding implications historical population declines through logging deforestation, well ongoing defaunation. Both these processes lead changes baseline process (e.g. seed dispersal versus predation), forest regeneration, community reassembly, potential evolutionary consequences such downsizing.

Language: Английский

---

Forest fragmentation and defaunation drive an unusual ecological cascade: Predation release, monkey population outburst and plant demographic collapse

Biological Conservation, Journal Year: 2020, Volume and Issue: 252, P. 108852 - 108852

Published: Nov. 12, 2020

Language: Английский

---

From spears to automatic rifles: The shift in hunting techniques as a mammal depletion driver during the Angolan civil war

Biological Conservation, Journal Year: 2020, Volume and Issue: 249, P. 108744 - 108744

Published: Aug. 18, 2020

Language: Английский

---

Geosocial Features and Loss of Biodiversity Underlie Variable Rates of Inflammatory Bowel Disease in a Large Developing Country: A Population-Based Study

Inflammatory Bowel Diseases, Journal Year: 2022, Volume and Issue: 28(11), P. 1696 - 1708

Published: Jan. 28, 2022

Abstract Background The epidemiology of inflammatory bowel disease (IBD) in developing countries may uncover etiopathogenic factors. We investigated IBD prevalence Brazil by investigating its geographic, spatial, and temporal distribution, attempted to identify factors associated with recent increase. Methods A drug prescription database was queried longitudinally patients verify population distribution density, race, urbanicity, sanitation, Human Development Index. Prevalence calculated using the number estimated during same decade. Data were matched indices linear regression analyses. Results identified 162 894 patients, 59% ulcerative colitis (UC) 41% Crohn’s (CD). overall 80 per 100 000, 46 000 for UC 36 CD. Estimated rates adjusted total showed that more than triplicated from 2008 2017. demonstrated a South-to-North gradient generally followed apportionment. However, marked regional differences clusters did not fit conventionally accepted epidemiological associations, revealing rise variable. In some areas, loss biodiversity high prevalence. Conclusions When is considered context prevalence, become evident. Despite background Westernization, hotspots are recognized explained or other but apparently loss. Thus, uniform, rather one varies depending on yet unexplored like geoecological conditions.

Language: Английский

---

Snapshot of the Atlantic Forest canopy: surveying arboreal mammals in a biodiversity hotspot

Oryx, Journal Year: 2022, Volume and Issue: 56(6), P. 825 - 836

Published: Oct. 17, 2022

Abstract The Atlantic Forest of South America supports a rich terrestrial biodiversity but has been reduced to only small extent its original forest cover. It hosts large number endemic mammalian species our knowledge arboreal mammal ecology and conservation limited because the challenges observing from ground level. Camera trapping proven be an effective tool in monitoring technique rarely used for species. For first time Forest, we obtained data on community using camera trapping, focusing Caparaó National Park, Brazil. We placed 24 infrared traps canopy seven areas within operating them continuously during January 2017–June 2019. During this period accumulated 4,736 camera-days footage generated total 2,256 photographs 30-s videos vertebrates. were able detect mammals range body sizes. assemblage comprised 15 identifiable species, including Critically Endangered northern muriqui Brachyteles hypoxanthus buffy-headed marmoset Callithrix flaviceps as well other rare, nocturnal inconspicuous confirmed occurrence thin-spined porcupine Chaetomys subspinosus Park. Species richness varied across survey types. Our findings demonstrate potential inform strategies.

Language: Английский

---

Can taxonomic and functional metrics explain variation in the ecological uniqueness of ecologically-associated animal groups in a modified rainforest?

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 708, P. 135171 - 135171

Published: Nov. 23, 2019

Language: Английский

---