Interspecific competition limits bird species’ ranges in tropical mountains

Science, Год журнала: 2022, Номер 377(6604), С. 416 - 420

Опубликована: Июль 21, 2022

Species' geographic ranges are limited by climate and species interactions. Climate is the prevailing explanation for why live only within narrow elevational in megadiverse biodiverse tropical mountains, but competition can also restrict species' ranges. We test contrasting predictions of these hypotheses conducting a global comparative birds' range sizes 31 montane regions, using more than 4.4 million citizen science records from eBird to define each region. find strong support that competition, not climate, leading driver These results highlight importance interactions shaping Earth's hottest biodiversity hotspots.

Язык: Английский

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Abrupt expansion of climate change risks for species globally

Nature Ecology & Evolution, Год журнала: 2023, Номер 7(7), С. 1060 - 1071

Опубликована: Май 18, 2023

Язык: Английский

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Integrating food webs in species distribution models can improve ecological niche estimation and predictions

Ecography, Год журнала: 2025, Номер unknown

Опубликована: Янв. 14, 2025

Biotic interactions play a fundamental role in shaping multitrophic species communities, yet incorporating these into distribution models (SDMs) remains challenging. With the growing availability of interaction networks, it is now feasible to integrate SDMs for more comprehensive predictions. Here, we propose novel framework that combines trophic networks with Bayesian structural equation models, enabling each be modeled based on its predators or prey alongside environmental factors. This addresses issues multicollinearity and error propagation, making possible predict distributions unobserved locations under future conditions, even when predator are unknown. We tested validated our realistic simulated communities spanning different theoretical ecological setups. scenarios. Our approach significantly improved estimation both potential realized niches compared single SDMs, mean performance gains 8% 6%, respectively. These improvements were especially notable strongly regulated by biotic factors, thereby enhancing model predictive accuracy. supports integration various SDM extensions, such as occupancy integrated offering flexibility adaptability developments. While not universal solution consistently outperforms provides valuable new tool modeling community known assumed.

Язык: Английский

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A review on trade-offs at the warm and cold ends of geographical distributions

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2022, Номер 377(1848)

Опубликована: Фев. 21, 2022

Species' range limits are ubiquitous. This suggests that the evolution of ecological niche is constrained in general and at edges distributions particular. While there may be many genetic reasons for this phenomenon, here we focus on potential role trade-offs. We performed a literature search evidence trade-offs associated with geographical or elevational limits. The majority were reported as relevant either cold end species' distribution (

Язык: Английский

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The macroecology of landscape ecology

Trends in Ecology & Evolution, Год журнала: 2022, Номер 37(6), С. 480 - 487

Опубликована: Фев. 17, 2022

Язык: Английский

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Plant Strategies

Oxford University Press eBooks, Год журнала: 2023, Номер unknown

Опубликована: Июль 27, 2023

Abstract Plants have evolved a remarkable array of adaptive solutions to the existential problem survival and reproduction in world where disturbances can be deadly, resources are scarce, competition is cutthroat. inherited phenotypic traits that increased their chance success, these indicators strategies for establishment survival. A plant strategy thought as “how species sustains population” (Westoby, 1998, p. 214) because all successful must positive demographic outcomes habitats which they adapted. This book aims articulate coherent framework studying unifies demography with functional ecology advance prediction ecology. Central this traits: heritable morphological, physiological, phenological attributes plants influence therefore drive fitness differences among species.

Язык: Английский

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Integrating biogeography and behavioral ecology to rapidly address biodiversity loss

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(15)

Опубликована: Апрель 5, 2023

Addressing climate change and biodiversity loss will be the defining ecological, political, humanitarian challenge of our time. Alarmingly, policymakers face a narrowing window opportunity to prevent worst impacts, necessitating complex decisions about which land set aside for preservation. Yet, ability make these is hindered by limited capacity predict how species respond synergistic drivers extinction risk. We argue that rapid integration biogeography behavioral ecology can meet challenges because distinct, yet complementary levels biological organization they address, scaling from individuals populations, communities continental biotas. This union disciplines advance efforts biodiversity’s responses habitat through deeper understanding biotic interactions other behaviors modulate risk, populations impact in are embedded. Fostering mobilization expertise across critical step toward slowing loss.

Язык: Английский

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Density‐dependent species interactions modulate alpine treeline shifts

Ecology Letters, Год журнала: 2024, Номер 27(4)

Опубликована: Апрель 1, 2024

Abstract Species interactions such as facilitation and competition play a crucial role in driving species range shifts. However, density dependence key feature of these processes has received little attention both empirical modelling studies. Herein, we used novel, individual‐based treeline model informed by rich situ observations to quantify the contribution density‐dependent alpine dynamics, an iconic biome boundary recognized indicator global warming. We found that dominate dense versus sparse vegetation scenarios respectively. The optimal balance between two effects was identified at intermediate thickness where elevation highest. Furthermore, shift rates decreased sharply with associated transition from positive negative interactions. thus postulate must be considered when dynamics avoid inadequate predictions its responses climate

Язык: Английский

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Trees have overlapping potential niches that extend beyond their realized niches

Science, Год журнала: 2024, Номер 385(6704), С. 75 - 80

Опубликована: Июль 4, 2024

Tree species appear to prefer distinct climatic conditions, but the true nature of these preferences is obscured by interactions and dispersal, which limit species' ranges. We quantified realized potential thermal niches 188 North American tree conduct a continental-scale test architecture niches. found strong consistent evidence that occurring at extremes occupy less than three-quarters their niches, overlap mean annual temperature ~12°C. These results clarify breadth tolerances temperate support centrifugal organization Accounting for nonrealized components ecological will advance theory prediction in global change ecology.

Язык: Английский

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Island Plant Species Distributions Contracted at the Cooler Edge Compared to Mainland

Ecology Letters, Год журнала: 2025, Номер 28(4)

Опубликована: Апрель 1, 2025

ABSTRACT Continental islands have long been used as ecological models for understanding species assembly dynamics in isolated habitat fragments. But competition or colonisation constraints might be different to mainland populations, manifesting expanded contracted ranges across a geographic distribution of comparison population range. Here, we demonstrate that plants on coastal do not experience release due lack competition, but rather range at the cool edge cross‐continental dataset 843 small spanning contrasting environments fringing Australian coast. We found their averaged 2.2°C warmer mean annual temperature, about 4–500 km nearer equator. The tendency colonise suggests may struggle track niche poleward climate shifts over fragments mainland.

Язык: Английский

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