Latitudinal gradient in species richness

Author: ndhb

August undefined, 2024

WebOne hypothesis for the latitudinal gradient in species richness observed in most animal taxa is that the richness of a region is determined by its geographic area. However, the relationship between geographic area and species richness across regions is … Webthere is a latitudinal gradient in species richness and if interactions (or, more generally, resource use) are struc- tured in an asymmetrically specialized, nested fashion.

The latitudinal species richness gradient in New World woody ...

Web10 apr. 2024 · INTRODUCTIONThe large‐scale patterns in species diversity have intrigued ecologists and biogeographers for several decades (Hawkins, 2001; Kreft & Jetz, 2007). Climate has been identified as an important explanation for these patterns (Currie et al., 2004; Hawkins et al., 2003; Rodríguez et al., 2005; Willig et al., 2003). Several … Web14 apr. 2024 · Concerning latitudinal distribution patterns, as early as 1878, A. R. Wallace depicted the great diversity and species richness of the terrestrial tropics [].Despite a lower sampling effort in the tropics, which could led to a decrease in species richness at the equator [], studies confirmed this latitudinal pattern in the terrestrial, as well as the … how many referees in a football game

Bimodality of Latitudinal Gradients in Marine Species Richness

Web17 jan. 2024 · Species richness peaked in the subtropical area of the Northern Hemisphere and near the Equator, between latitudes 40° and 20° (113 species), and between latitudes 0° and 10° (124 species; Fig. 1b), and steeply decreased with latitude (r = −0.78, P < 10 −5; linear regression: intercept 103.7, slope coefficient −1.336; Fig. 4a). Web14 apr. 2024 · Alpine grasslands are important ecosystems on the Qinghai–Tibet Plateau and are extremely sensitive to climate change. However, the spatial responses of plant species diversity and biomass in alpine grasslands to environmental factors under the background of global climate change have not been thoroughly characterized. In this … WebUnderstanding the origins of species richness patterns is a fundamental goal in ecology and evolutionary biology. Much research has focused on explaining two kinds of species richness patterns: (i) spatial species richness patterns (e.g. the latitudinal diversity gradient), and (ii) clade-based species richness patterns (e.g. the predominance of … how deep to bury a dog

12 - Inverse latitudinal gradients in species diversity

The relationship between geographic area and the latitudinal …

Web15 sep. 2014 · We assess multiple theories for the latitudinal gradient of species richness by recasting several of their predictions for the alpha, beta, and gamma components of … Web1 dag geleden · At the community level, the latitudinal diversity gradient describes the general pattern of increasing species richness, abundance, and evenness with decreasing elevation [37] and latitudes [38]. This was observed in several host-parasitoid systems and gall-inducing cynipid parasitoids (Chalcidoidea) over an altitudinal gradient of 1000m in … how many referees are there in nflWebSpecies richness, or biodiversity, increases from the poles to the tropics for a wide variety of terrestrial and marine organisms, often referred to as the latitudinal diversity gradient. … how deep to bury a gas line

"Web10 feb. 2024 · While some studies have found evidence of a potential role for MDE in latitudinal gradients of species richness, particularly for wide-ranging species (e.g. Jetz and Rahbek 2001, Koleff and Gaston 2001, Lees and Colwell, 2007, Romdal et al. 2005, Rahbek et al. 2007, Storch et al. 2006; Dunn et al. 2007) others report little … " - Latitudinal gradient in species richness

Latitudinal gradient in species richness

Parth Sarathi Roy - Senior Fellow - WRI India LinkedIn

Web5 sep. 2024 · The latitudinal diversity gradient has been considered a consequence of a shift in the impact of abiotic and biotic factors that limit species distributions from the poles to the equator, thus influencing species richness variation. It has also been considered the outcome of evolutionary processes that vary over geographical space. Web4 sep. 2024 · Rapoport's rule introduced the idea that the length of the geographical range of a species, relative to the north and south axis of the earth, plays an important role in the already acknowledged latitudinal gradient of species richness. Specifically, species at higher latitudes have a wider geographical range than species at lower latitudes.

Did you know?

WebLatitudinal gradient in species richness Kevin J. Gaston What is the gradient? Amongst the earliest remarked, and best documented, of broad-scale spatial patterns of life on Earth … WebThe six major hypotheses of the control of species diversity are restated, examined, and some possible tests suggested. Although several of these mechanisms could be operating simultaneously, it is instructive to consider them separately, as this can serve to clarify our thinking, as well as assist in the choice of the best test situations for ...

Web1 aug. 2000 · Species-richness Gradient Rosenzweig 1, 2 has added much needed focus to discussions of the mechanisms that generate latitudinal gradients in taxon richness. WebWe use a simulation model to examine four of the most common hypotheses for the latitudinal richness gradient and identify patterns that might be diagnostic of those four hypotheses. The hypotheses examined include (1) tropical niche conservatism, or the idea that the tropics are more diverse because a tropical clade origin has allowed more time …

Web28 okt. 2024 · We observed two peaks in the species richness curves along both latitudinal and longitudinal gradient, due to harbouring of … Web1 aug. 2000 · Three possible explanations have been proposed for why a latitudinal species-richness gradient might be expressed: first, low productivity at high latitudes …

WebAim To understand the ecological and historical/evolutionary processes underlying an inverse latitudinal gradient of richness (LGR) using crustacean peracarid species as a model group. Location The Pacific coast of South America, along the Chilean coast between 18° S and 56° S.

WebThe processes causing the latitudinal gradient in species richness remain elusive. Ecological theories for the origin of biodiversity gradients, such as competitive exclusion, neutral dynamics, and environmental filtering, make predictions for how functional diversity should vary at the alpha (within local assemblages), beta (among assemblages), and … how deep titanic sankWeb20 mei 2014 · Here, we use latitudinal distributions for over 12,500 woody angiosperm species in the New World and a fossil-calibrated supertree (18–21) resolved to the family … how deep to bury a gate postWeb1 dag geleden · Research has shown that in ecosystems where fire is a natural and regular occurrence, there can be more species of plants — a greater “species richness” — due … how deep to bury a 14 foot postWeb4 apr. 2000 · Here, we examine latitudinal patterns of diversity in the deep North Atlantic by comparing the richness and evenness components of a diversity index applied to three … how many referees for rugbyWebLatitudinal Gradients in Species Diversity: A Review of Concepts Eric R. Pianka PDF PDF PLUS Abstract Sections Abstract The six major hypotheses of the control of species diversity are restated, examined, and some possible tests suggested. how many referees in an nfl gameWeb12 jan. 2024 · The latitudinal diversity gradient describes the fact that there are less species in the temperate regions than in the tropics. The latitudinal diversity gradient is observed in most groups of animals, plants, and microorganisms, and remains one of the oldest and most famous mysteries in ecology. how many referees in football matchWeb1、资源内容：基于Matlab绘图复刻堆叠柱状图+哑铃图（完整源码+报告+数据）.rar2、代码特更多下载资源、学习资料请访问CSDN文库频道. how many referees in an nba game