Land-use and climate drive shifts in Bombus assemblage composition

Occurrence
Dernière version Publié par USDA-ARS Pollinating Insect-Biology, Management, Systematics Research le juin 13, 2023 USDA-ARS Pollinating Insect-Biology, Management, Systematics Research
Date de publication:
13 juin 2023
Licence:
CC-BY-NC 4.0

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Description

Pollinators play pivotal roles in maintaining agricultural and natural plant communities, yet some bee populations are declining. The conversion of agricultural and semi-natural lands for urban use has reduced bee abundance and diversity. Additionally, climate change has affected bee distributions and led to disruption of plant-pollinator synchrony, impacting ecosystem processes. However, how these factors concurrently influence bee assemblages is poorly understood. Therefore, we linked differences in bumble bee (Bombus) diversity to landscape composition and climate in agroecosystems to understand their co-occurring effects. Bombus assemblages were evaluated in relation to the proportion of agricultural, semi-natural, and urban landscapes and interannual variation in temperature, precipitation, and relative humidity in Utah agroecosystems from 2014 to 2018. Bombus species richness and diversity were highest in agriculturally dominated landscapes characterized by low temperatures and high relative humidity during the growing season, and lowest in urbanized agricultural areas with high temperatures and low relative humidity. Ongoing and future land-use and climate change may therefore lead to reduced Bombus diversity in Utah. Although some historically uncommon species, such as B. pensylvanicus, may thrive under future land-use and climate scenarios, others (e.g., B. sylvicola, B. californicus, and B. occidentalis) are at increased risk of extirpation due to loss of suitable habitat. Continually monitoring Bombus populations will help document shifts in assemblages and potential consequential impacts to ecosystem services. These findings emphasize that management strategies should consider the effect of co-occurring factors based on geographic location and local diversity to prevent ecological homogenization and to foster future resiliency of Bombus populations.

Enregistrements de données

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Ikerd M (2022): Land-use and climate drive shifts in Bombus assemblage composition. v1.2. USDA-ARS Pollinating Insect-Biology, Management, Systematics Research. Dataset/Occurrence. https://bison.usgs.gov/ipt/resource?r=landuse&v=1.2

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est USDA-ARS Pollinating Insect-Biology, Management, Systematics Research. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède lUUID GBIF suivante : c6fdb7c6-9597-44e2-8b82-32714bb7133c.  USDA-ARS Pollinating Insect-Biology, Management, Systematics Research publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec lapprobation du GBIF-US.

Mots-clé

Occurrence

Contacts

Morgan Ikerd
  • Créateur
USDA-ARS
  • 5310 Old Main Hill
84322 Logan
Utah
US
  • 4352275711
Harold Ikerd
  • Fournisseur Des Métadonnées ●
  • Conservateur ●
  • Personne De Contact
USDA-ARS
  • 5310 Old Main Hill
84322 Logan
Utah
US
  • 4352275711
Morgan Christman
  • Fournisseur Des Métadonnées ●
  • Auteur ●
  • Personne De Contact
Ohio State
  • 2501 Carmack Road
43210 Columbus
Ohio
US

Couverture géographique

Utah Landscape and Bombus assemblage

Enveloppe géographique Sud Ouest [39,22, -112,959], Nord Est [41,549, -111,414]

Couverture taxonomique

Utah Bombus

Genus Bombus

Couverture temporelle

Date de début / Date de fin 2014-01-01 / 2019-10-01

Données sur le projet

Pas de description disponible

Titre Land-use and climate drive shifts in Bombus assemblage composition

Les personnes impliquées dans le projet:

Morgan Christman
  • Auteur

Méthodes déchantillonnage

Pest monitoring traps were placed along the margin of corn and alfalfa fields across a gradient of agriculturally intensified land in lower elevation areas (874 –1418 m) throughout five counties in northern and central Utah from 2014 to 2019 (Fig. 1) as part of early-detection surveys for invasive lepidopterans following Spears et al. (2016) and U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Cooperative Agricultural Pest Survey approved methods (CAPS, 2019). Six agricultural sites were surveyed within each county ((3 corn + 3 alfalfa fields)  5 counties, n = 30). Three multi-colored (green canopy, yellow funnel, and white bucket) bucket traps (International Pheromone Systems, Cheshire, UK) were spaced 20 m apart and hung 1.5 m above the ground along the field margin of each agricultural site (N = 540; 3 traps  30 sites  6 years). The three traps corresponded to the following target pests: cotton cutworm (CC, Spodoptera litura F.), Egyptian cotton leafworm (ECL, Spodoptera littoralis Boisduval), and Old World bollworm (OWB, Helicoverpa armigera Hübner). A single pheromone lure was placed inside the lure basket of the trap canopy. An insecticide strip (Hercon Vaportape II: 10% dimethyl 2,2-dichlorovinyl phosphate, Hercon Environmental Corporation, Emigsville, PA) and a small cellulose sponge were placed inside each bucket to kill the captured insects and absorb rainwater, respectively. Insecticide strips and pheromone lures for OWB were replaced every 28 days, while the pheromone lures for CC and ECL were changed every 84 days, following USDA APHIS CAPS survey protocols.

Etendue de létude na

Description des étapes de la méthode:

  1. Trap contents were collected every other week from late April to mid-September from 2014 to 2019. Since lure comparisons were not the intent of this study (but see Spears et al., 2016), trap data were combined by agricultural site and collection period. At the lab, trap contents were screened for target pests, and Bombus collected as bycatch were separated from all other specimens and then stored in a freezer at -18˚C until they could be pin-mounted, labeled, and identified to species using taxonomic keys (Koch et al., 2012; Williams et al., 2014).

Métadonnées additionnelles

Identifiants alternatifs c6fdb7c6-9597-44e2-8b82-32714bb7133c
https://doi.org/10.15468/g3endd
https://ipt.gbif.us/resource?r=landuse