Chihuahuan Desert kangaroo rats: nonlinear effects of population dynamics, competition, and rainfall.

Abstract:

:Using long-term data on two kangaroo rats in the Chihuahuan Desert of North America, we fitted logistic models including the exogenous effects of seasonal rainfall patterns. Our aim was to test the effects of intraspecific interactions and seasonal rainfall in explaining and predicting the numerical fluctuations of these two kangaroo rats. We found that logistic models fit both data sets quite well; Dipodomys merriami showed lower maximum per capita growth rates than Dipodomys ordii, and in both cases logistic models were nonlinear. Summer rainfall appears to be the most important exogenous effect for both rodent populations; models including this variable were able to predict independent data better than models including winter rainfall. D. merriami was also negatively affected by another kangaroo rat (Dipodomys spectabilis), consistent with previous experimental evidence. We hypothesized that summer rainfall influences the carrying capacity of the environment by affecting seed availability and the intensity of intraspecific competition.

journal_name

Ecology

journal_title

Ecology

authors

Lima M,Ernest SK,Brown JH,Belgrano A,Stenseth NC

doi

10.1890/07-1246.1

subject

Has Abstract

pub_date

2008-09-01 00:00:00

pages

2594-603

issue

9

eissn

0012-9658

issn

1939-9170

journal_volume

89

pub_type

杂志文章

相关文献

ECOLOGY文献大全
  • Explaining long-distance dispersal: effects of dispersal distance on survival and growth in a stream salamander.

    abstract::Long-distance dispersal (LDD) may contribute disproportionately to range expansions, the creation of new evolutionary lineages, and species persistence in human-dominated landscapes. However, because data on the individual consequences of dispersal distance are extremely limited, we have little insight on how LDD is m...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/09-1458.1

    authors: Lowe WH

    更新日期:2010-10-01 00:00:00

  • The effects of pulsed fertilization and chronic herbivory by periodical cicadas on tree growth.

    abstract::Although many studies have investigated plant growth in the context of episodic herbivory and pressed resource availability, relatively few have examined how plant growth is affected by pulsed resources and chronic herbivory. Periodical cicada (Magicicada spp.) adults represent a pulsed detrital subsidy that fertilize...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2705

    authors: Yang LH,Karban R

    更新日期:2019-06-01 00:00:00

  • Microbial functional diversity enhances predictive models linking environmental parameters to ecosystem properties.

    abstract::Microorganisms drive biogeochemical processes, but linking these processes to real changes in microbial communities under field conditions is not trivial. Here, we present a model-based approach to estimate independent contributions of microbial community shifts to ecosystem properties. The approach was tested empiric...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/14-1127.1

    authors: Powell JR,Welsh A,Hallin S

    更新日期:2015-07-01 00:00:00

  • Trait-dependent modification of facilitation on cobble beaches.

    abstract::Fundamental gaps remain in our knowledge of how positive species interactions, such as facilitation and mutualism, structure and maintain populations and communities. Foundation species create extensive biogenic habitats, but we know little of how their traits, such as density, age, and patch size, modify their abilit...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-1957.1

    authors: Irving AD,Bertness MD

    更新日期:2009-11-01 00:00:00

  • Terrestrial vertebrates alter seedling composition and richness but not diversity in an Australian tropical rain forest.

    abstract::Although birds and mammals play important roles in several mechanisms hypothesized to maintain plant diversity in species-rich habitats, there have been few long-term, community-level tests of their importance. We excluded terrestrial birds and mammals from fourteen 6 x 7.5 m plots in Australian primary tropical rain ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-2231.1

    authors: Theimer TC,Gehring CA,Green PT,Connell JH

    更新日期:2011-08-01 00:00:00

  • Lianas maintain insectivorous bird abundance and diversity in a neotropical forest.

    abstract::The spatial habitat heterogeneity hypothesis posits that habitat complexity increases the abundance and diversity of species. In tropical forests, lianas add substantial habitat heterogeneity and complexity throughout the vertical forest profile, which may maintain animal abundance and diversity. The effects of lianas...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3176

    authors: Schnitzer SA,Michel NL,Powers JS,Robinson WD

    更新日期:2020-12-01 00:00:00

  • Rapid aggregative and reproductive responses of weevils to masting of North American oaks counteract predator satiation.

    abstract::The predator satiation hypothesis posits that masting helps plants escape seed predation through starvation of predators in lean years, followed by satiation of predators in mast years. Importantly, successful satiation requires sufficiently delayed bottom-up effects of seed availability on seed consumers. However, so...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2510

    authors: Bogdziewicz M,Marino S,Bonal R,Zwolak R,Steele MA

    更新日期:2018-11-01 00:00:00

  • Varying predator personalities generates contrasting prey communities in an agroecosystem.

    abstract::Most taxa show consistent individual differences in behavior, a phenomenon often referred to as animal "personalities." While the links between individual personality and fitness have received considerable attention, little information is available on how animal personality impacts higher-order ecological processes, s...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/14-2424.1

    authors: Royauté R,Pruitt JN

    更新日期:2015-11-01 00:00:00

  • Demand-driven resource investment in annual seed production by a perennial angiosperm precludes resource limitation.

    abstract::The limits on annual seed production have long been characterized as restriction by either pollination success or resource provision to seed development. This expected dichotomy between pollen and resource limitation is based on the assumption that reproductive resources are fixed, which is reasonable for semelparous ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/12-0619.1

    authors: Ida TY,Harder LD,Kudo G

    更新日期:2013-01-01 00:00:00

  • Geomorphology controls the trophic base of stream food webs in a boreal watershed .

    abstract::Abstract. Physical attributes of rivers control the quantity and quality of energy sources available to consumers, but it remains untested whether geomorphic conditions of whole watersheds affect the assimilation of different resources by stream organisms. We compared the fatty acid (FA) compositions of two invertebra...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/14-2247.1

    authors: Smits AP,Schindler DE,Brett MT

    更新日期:2015-07-01 00:00:00

  • Modeling spatial aggregation of finite populations.

    abstract::Accurate description of spatial distribution of species is essential for correctly modeling macroecological patterns and thus to infer mechanisms of species coexistence. The Poisson and negative binomial distribution (NBD) are most widely used to respectively model random and aggregated distributions of species in inf...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/09-2233.1

    authors: Zillio T,He F

    更新日期:2010-12-01 00:00:00

  • The Lévy flight paradigm: random search patterns and mechanisms.

    abstract::Over recent years there has been an accumulation of evidence from a variety of experimental, theoretical, and field studies that many organisms use a movement strategy approximated by Lévy flights when they are searching for resources. Lévy flights are random movements that can maximize the efficiency of resource sear...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-0153.1

    authors: Reynolds AM,Rhodes CJ

    更新日期:2009-04-01 00:00:00

  • Quantifying population substructure: extending the graph-theoretic approach.

    abstract::Among the few universal themes in ecology is that resources, energy, and organisms themselves, are patchily distributed. This patchy distribution imposes a need for some level of dispersal or connectivity among spatially separate patches in order to allow organisms to acquire sufficient resources for survival. To date...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/05-0860

    authors: Brooks CP

    更新日期:2006-04-01 00:00:00

  • Diversity-invasibility across an experimental disturbance gradient in Appalachian Forests.

    abstract::Research examining the relationship between community diversity and invasions by nonnative species has raised new questions about the theory and management of biological invasions. Ecological theory predicts, and small-scale experiments confirm, lower levels of nonnative species invasion into species-rich compared to ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-0270.1

    authors: Belote RT,Jones RH,Hood SM,Wender BW

    更新日期:2008-01-01 00:00:00

  • Caspian Sea environmental variables: an extension of the Bio-ORACLE ocean data set.

    abstract::The Caspian Sea hosts unique native and endemic faunas. However, it is also a source and sink of invasive alien species (IAS), with some listed among the worst 100 invasive species by the IUCN. A common approach to study biodiversity and biogeographic patterns or to predict the invasive potential of species is the app...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3076

    authors: Lattuada M,Wilke T,Raes N

    更新日期:2020-09-01 00:00:00

  • A mechanistic basis for underyielding in phytoplankton communities.

    abstract::Species richness has been shown to increase biomass production of plant communities. Such overyielding occurs when a community performs better than its component monocultures due to the complementarity or dominance effect and is mostly detected in substrate-bound plant communities (terrestrial plants or submerged macr...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-2370.1

    authors: Schmidtke A,Gaedke U,Weithoff G

    更新日期:2010-01-01 00:00:00

  • The pattern of early growth trajectories affects adult breeding performance.

    abstract::Early environmental conditions can influence the pattern of growth and development. While poor conditions generally cause slower growth, normal adult size can still be reached if growth accelerates or is prolonged once conditions improve, but such catch-up growth may have deleterious effects later in life. Here we inv...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-0890.1

    authors: Lee WS,Monaghan P,Metcalfe NB

    更新日期:2012-04-01 00:00:00

  • Trophic cascade induced by molluscivore predator alters pore-water biogeochemistry via competitive release of prey.

    abstract::Effects of predation may cascade down the food web. By alleviating interspecific competition among prey, predators may promote biodiversity, but the precise mechanisms of how predators alter competition have remained elusive. Here we report on a predator-exclosure experiment carried out in a tropical intertidal ecosys...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-1282.1

    authors: van Gils JA,van der Geest M,Jansen EJ,Govers LL,de Fouw J,Piersma T

    更新日期:2012-05-01 00:00:00

  • Terrestrial support of aquatic food webs depends on light inputs: a geographically-replicated test using tank bromeliads.

    abstract::Food webs of freshwater ecosystems can be subsidized by allochthonous resources. However, it is still unknown which environmental factors regulate the relative consumption of allochthonous resources in relation to autochthonous resources. Here, we evaluated the importance of allochthonous resources (litterfall) for th...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1432

    authors: Farjalla VF,González AL,Céréghino R,Dézerald O,Marino NA,Piccoli GC,Richardson BA,Richardson MJ,Romero GQ,Srivastava DS

    更新日期:2016-08-01 00:00:00

  • Suppression of savanna ants alters invertebrate composition and influences key ecosystem processes.

    abstract::In almost every ecosystem, ants (Hymenoptera: Formicidae) are the dominant terrestrial invertebrate group. Their functional value was highlighted by Wilson (1987) who famously declared that invertebrates are the "little things that run the world." However, while it is generally accepted that ants fulfil important func...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/15-1713.1

    authors: Parr CL,Eggleton P,Davies AB,Evans TA,Holdsworth S

    更新日期:2016-06-01 00:00:00

  • Ocean warming increases threat of invasive species in a marine fouling community.

    abstract::We addressed the potential for climate change to facilitate invasions and precipitate shifts in community composition by testing effects of ocean warming on species in a marine fouling community in Bodega Harbor, Bodega Bay, California, USA. First, we determined that introduced species tolerated significantly higher t...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-0238.1

    authors: Sorte CJ,Williams SL,Zerebecki RA

    更新日期:2010-08-01 00:00:00

  • Discontinuities, cross-scale patterns, and the organization of ecosystems.

    abstract::Ecological structures and processes occur at specific spatiotemporal scales, and interactions that occur across multiple scales mediate scale-specific (e.g., individual, community, local, or regional) responses to disturbance. Despite the importance of scale, explicitly incorporating a multi-scale perspective into res...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/13-1315.1

    authors: Nash KL,Allen CR,Angeler DG,Barichievy C,Eason T,Garmestani AS,Graham NA,Granholm D,Knutson M,Nelson RJ,Nyström M,Stow CA,Sundstrom SM

    更新日期:2014-03-01 00:00:00

  • FORMATION AND PROPAGATION OF FEEDING FRONTS IN BENTHIC MARINE INVERTEBRATES: A MODELING APPROACH.

    abstract::Feeding fronts are a striking pattern of spatial distribution observed in both marine and terrestrial ecological systems. These fronts not only determine the abundance and distribution of prey populations, but on a broader scale they may also affect the structure and dynamics of entire communities. Several mechanisms ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-0643.1

    authors: Lauzon-Guay JS,Scheibling RE,Barbeau MA

    更新日期:2008-11-01 00:00:00

  • Photosynthetic overcompensation under nocturnal warming enhances grassland carbon sequestration.

    abstract::A mechanistic understanding of the carbon (C) cycle-climate change feedback is essential for projecting future states of climate and ecosystems. Here we report a novel field mechanism and evidence supporting the hypothesis that nocturnal warming in a temperate steppe ecosystem in northern China can result in a minor C...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-2026.1

    authors: Wan S,Xia J,Liu W,Niu S

    更新日期:2009-10-01 00:00:00

  • Trophic structure of coastal Antarctic food webs associated with changes in sea ice and food supply.

    abstract::Predicting the dynamics of ecosystems requires an understanding of how trophic interactions respond to environmental change. In Antarctic marine ecosystems, food web dynamics are inextricably linked to sea ice conditions that affect the nature and magnitude of primary food sources available to higher trophic levels. R...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/06-1396.1

    authors: Norkko A,Thrush SF,Cummings VJ,Gibbs MM,Andrew NL,Norkko J,Schwarz AM

    更新日期:2007-11-01 00:00:00

  • Favorable effect of mycorrhizae on biomass production efficiency exceeds their carbon cost in a fertilization experiment.

    abstract::Biomass production efficiency (BPE), the ratio of biomass production to photosynthesis, varies greatly among ecosystems and typically increases with increasing nutrient availability. Reduced carbon partitioning to mycorrhizal fungi (i.e., per unit photosynthesis) is the hypothesized underlying mechanism, as mycorrhiza...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2502

    authors: Verlinden MS,Ven A,Verbruggen E,Janssens IA,Wallander H,Vicca S

    更新日期:2018-11-01 00:00:00

  • Surf-zone hydrodynamics alter phytoplankton subsidies affecting reproductive output and growth of tidal filter feeders.

    abstract::Surf zones, classified from reflective to dissipative, separate the ocean from shore and subsidies from the coastal ocean must pass through surf zones to reach the shore. We have observed that variations in phytoplankton concentrations in the water over the intertidal zone varied with surf-zone hydrodynamics and we hy...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2415

    authors: Salant CD,Shanks AL

    更新日期:2018-08-01 00:00:00

  • Nikolaeva et al.'s reference book on seed dormancy and germination.

    abstract::Despite the recent advances in seed science research, information on seed dormancy and germination traits is still missing for many lineages of the seed plants. We translated and digitized a huge data set on seed dormancy and germination from the Reference Book On Dormant Seed Germination by M. Nikolaeva, M. Razumova,...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3049

    authors: Rosbakh S,Baskin CC,Baskin JM

    更新日期:2020-07-01 00:00:00

  • Landscape connectivity strengthens local-regional richness relationships in successional plant communities.

    abstract::Local species diversity is maintained over ecological time by a balance between dispersal and species interactions. Local-regional species richness relationships are often used to investigate the relative importance of these two processes and the scales at which they operate. For communities undergoing succession, the...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-1797.1

    authors: Damschen EI,Brudvig LA

    更新日期:2012-04-01 00:00:00

  • Geographic dialects in volatile communication between sagebrush individuals.

    abstract::Plants respond to volatile cues emitted by damaged neighbors to increase their defenses against herbivores. We examined whether plants communicated more effectively with local neighbors than distant neighbors in a reciprocal experiment at two sites. Three branches on focal plants were incubated with air from (1) a con...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1573

    authors: Karban R,Wetzel WC,Shiojiri K,Pezzola E,Blande JD

    更新日期:2016-11-01 00:00:00