Urban expansion and infrastructure development reduce habitat suitability for Asian elephants in southwestern China

Journal of Wildlife Management, Journal Year: 2022, Volume and Issue: 86(4)

Published: March 7, 2022

Abstract Conservation interventions for threatened species must be based on accurate assessments of the effects anthropogenic pressures habitat suitability. We used multiscale multivariable species‐distribution modeling to evaluate suitability an Asian elephant ( Elephas maximus ) population in Shangyong Reserve, Yunnan Province, southwestern China. investigated scales at which measurements environmental variables best reflected selection, and examined whether these responses changed over 2 decades (2000–2010 2011–2020) response 20 variables, including 14 reflecting landscape fragmentation, extent buildings, transport infrastructure. Elephant presence was sensitive scale each variable, differed among within between decades. More than half influenced coarse 8 or 16 km, 12 2000–2010 10 2011–2020. Overall, multivariate models with their optimal had higher discrimination uniformly fine 1 km km. The suitable elephants declined by 24% Less located Reserve (49% 2000–2010, 40% 2011–2020), indicating importance managing beyond reserve boundaries. Roads buildings reduced probability presence, that extended immediate footprint. advocate infrastructure planned buffers, ≥8 wide, roads core habitat. Multiscale should employed ensure all remaining fragmented populations is identified, mapped, protected.

Language: Английский

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Evidence of spatial genetic structure in a snow leopard population from Gansu, China

Heredity, Journal Year: 2021, Volume and Issue: 127(6), P. 522 - 534

Published: Nov. 6, 2021

Language: Английский

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Mapping crop damage by wild boars using multi‐scale risk modeling in Northeast China

Journal of Wildlife Management, Journal Year: 2023, Volume and Issue: 87(6)

Published: May 2, 2023

Abstract Balancing development and conservation is one of the major challenges for modern societies. Negative human–wildlife interactions, especially crop raiding by wildlife, greatly undermine this objective. Jilin Province in Northeast China encompasses ecosystems high biodiversity value but endures serious losses yields due to wild boars ( Sus scrofa ). Mitigation measures have been hindered knowledge gaps boar damage patterns. Our objective was investigate how responded human‐dominated landscapes, evaluating landscape patterns at multiple ecological scales, thus providing a provincial map risk assist with mitigation. We used 1,144 coordinates from 2009 2013 train multi‐scale models maximum entropy algorithm. Damage highest on gentle slopes heterogenous landscapes composed fragmented plantations cropland, edge density among small discontinuous patches, dense settlements countryside areas sporadic road networks. Scale had substantial effect relationships between landscapes. recommend mitigating conflict improving compensation system reducing frequency through repelling, electric fencing, dissuasive feeding.

Language: Английский

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Landscape resistance to gene flow in a snow leopard population from Qilianshan National Park, Gansu, China

Landscape Ecology, Journal Year: 2023, Volume and Issue: 38(7), P. 1847 - 1868

Published: May 2, 2023

Language: Английский

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Concerns regarding the proposal for an ecological equation of state: an assessment starting from the organic biophysics of ecosystems (OBEC).

Ecological Modelling, Journal Year: 2023, Volume and Issue: 484, P. 110462 - 110462

Published: July 24, 2023

The goal of testing the theoretical fruitfulness and empirical utility links between ecology thermodynamics has been elusive. This could explain breakdown into multiple branches, some them intended to develop models in agreement with principles physics. maximum entropy algorithm (MaxEnt) is one most frequently mentioned topics this field. Within MaxEnt framework, a quantitative relationship various ecological parameters recently proposed as seeming equation state (EESH; Harte et al. 2022. An unifies diversity, productivity, abundance biomass. Commun. Biol. 5: 874). We analyze EESH from interdisciplinary perspective Organic Biophysics Ecosystems (OBEC). Consistent analysis, neglects analytical similarity key variables statistical mechanical variables, it does not include any intensive variable useful determine distance systems equilibrium, involve constant define range within which system can be considered out danger despite widespread effects anthropogenic impact, its general structure bears no resemblance previous equations because based on subjective approach devoid physical content that only tool for inference. So, our conclusions are: (i) withstand comparison prior knowledge evidence both physics, (ii) cannot an state.

Language: Английский

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